Plastic inspection chambers

LESSO · Design and installation

From the base to the complete chamber

Explore the base, wall constructions and connections through five views from the LESSO film.

Explore the base rangeWatch the LESSO film

01

The base and pipe connections

The film shows a base with opposite pipe connections, external reinforcement ribs and support ribs beneath the chamber.

02

Two wall constructions

Two constructions are shown: HDPE spiral structured-wall pipe and PVC-U double-layer axial hollow-wall pipe.

03

The pipe-to-chamber joint

The transparent view shows the pipe entering the chamber socket and the sealing area around the joint.

04

Handling in the factory

The factory sequence shows chamber-base components being handled before installation.

05

The assembled system on site

At 1:07, the assembled chamber, upper transition and connected corrugated pipes are shown in an excavated trench.

LESSO01 / 05

Plastic inspection chambers:base model range

Type I chamber bases include trough and silt series. The 633 unique published model variants are presented below. Model notation identifies the nominal wellhole and branch connections; A denotes an inner-diameter series and B an outer-diameter series.

L101 · Starting trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L101-200×150A	200	150A
L101-200×160B	200	160B
L101-200×200B	200	200B
L101-315×110B	315	110B
L101-315×160B	315	160B
L101-315×200A	315	200A
L101-315×200B	315	200B
L101-315×225A	315	225A
L101-315×250B	315	250B
L101-315×300A	315	300A
L101-315×315B	315	315B
L101-400×200A	400	200A
L101-400×200B	400	200B
L101-400×225A	400	225A
L101-400×250B	400	250B
L101-400×300A	400	300A
L101-400×315B	400	315B
L101-400×400B	400	400B
L101-400×400A	400	400A
L101-450×200A	450	200A
L101-450×200B	450	200B
L101-450×225A	450	225A
L101-450×250B	450	250B
L101-450×300A	450	300A
L101-450×315B	450	315B
L101-450×400A	450	400A
L101-500×300A	500	300A
L101-500×315B	500	315B
L101-500×400B	500	400B
L101-500×400A	500	400A
L101-500×500A	500	500A
L101-600×200B	600	200B
L101-600×225A	600	225A
L101-600×300A	600	300A
L101-600×315B	600	315B
L101-600×400B	600	400B
L101-600×400A	600	400A
L101-600×500A	600	500A
L101-600×500B	600	500B
L101-600×600A	600	600A
L101-630×200B	630	200B
L101-630×225A	630	225A
L101-630×300A	630	300A
L101-630×315B	630	315B
L101-630×400B	630	400B
L101-630×400A	630	400A
L101-630×500B	630	500B
L101-630×500A	630	500A
L101-630×600A	630	600A
L101-700×300A	700	300A
L101-700×315B	700	315B
L101-700×500A	700	500A
L101-800×300A	800	300A

L102 · Straight-way trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L102-200×150A	200	150A
L102-200×160B	200	160B
L102-200×200B	200	200B
L102-315×150A	315	150A
L102-315×160B	315	160B
L102-315×200B	315	200B
L102-315×200A	315	200A
L102-315×225A	315	225A
L102-315×250B	315	250B
L102-315×300A	315	300A
L102-315×315B	315	315B
L102-400×200A	400	200A
L102-400×200B	400	200B
L102-400×225A	400	225A
L102-400×250B	400	250B
L102-400×300A	400	300A
L102-400×315B	400	315B
L102-400×400B	400	400B
L102-400×400A	400	400A
L102-450×200B	450	200B
L102-450×200A	450	200A
L102-450×225A	450	225A
L102-450×300A	450	300A
L102-450×315B	450	315B
L102-450×400B	450	400B
L102-450×400A	450	400A
L102-500×300A	500	300A
L102-500×315B	500	315B
L102-500×400A	500	400A
L102-500×400B	500	400B
L102-500×500A	500	500A
L102-600×200B	600	200B
L102-600×200A	600	200A
L102-600×225A	600	225A
L102-600×300A	600	300A
L102-600×315B	600	315B
L102-600×400A	600	400A
L102-600×400B	600	400B
L102-600×500B	600	500B
L102-600×500A	600	500A
L102-600×600A	600	600A
L102-630×200B	630	200B
L102-630×200A	630	200A
L102-630×225A	630	225A
L102-630×300A	630	300A
L102-630×315B	630	315B
L102-630×400B	630	400B
L102-630×400A	630	400A
L102-630×500A	630	500A
L102-630×500B	630	500B
L102-630×600A	630	600A
L102-700×200B	700	200B
L102-700×300A	700	300A
L102-700×315B	700	315B
L102-700×400A	700	400A
L102-700×500A	700	500A
L102-700×600A	700	600A
L102-800×300A	800	300A
L102-800×400A	800	400A
L102-800×500A	800	500A
L102-800×600A	800	600A
L102-800×800A	800	800A
L102-1000×300A	1000	300A
L102-1000×400A	1000	400A
L102-1000×500A	1000	500A
L102-1000×600A	1000	600A
L102-1000×700A	1000	700A
L102-1000×800A	1000	800A
L102-1000×1000A	1000	1000A
L102-1200×300A	1200	300A
L102-1200×400A	1200	400A
L102-1200×500A	1200	500A
L102-1200×600A	1200	600A
L102-1200×700A	1200	700A
L102-1200×800A	1200	800A
L102-1200×1000A	1200	1000A

L103 · Reducing straight-way trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L103-500×400A/300A	500	400A/300A
L103-500×500A/400A	500	500A/400A
L103-600×200B/110B	600	200B/110B
L103-630×200B/110B	630	200B/110B

L104 · 15° elbow trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L104-315×250B	315	250B
L104-315×300A	315	300A
L104-500×400A	500	400A

L105 · 30° elbow trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L105-315×225A	315	225A
L105-400×300A	400	300A
L105-400×400A	400	400A
L105-450×300A	450	300A
L105-450×400A	450	400A
L105-600×500A	600	500A
L105-630×500A	630	500A

L106 · 45° elbow trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L106-200×150A	200	150A
L106-200×160B	200	160B
L106-200×200B	200	200B
L106-315×110B	315	110B
L106-315×150A	315	150A
L106-315×160B	315	160B
L106-315×200B	315	200B
L106-315×200A	315	200A
L106-315×225A	315	225A
L106-315×250B	315	250B
L106-315×300A	315	300A
L106-315×315B	315	315B
L106-400×200A	400	200A
L106-400×200B	400	200B
L106-400×225A	400	225A
L106-400×250B	400	250B
L106-400×300A	400	300A
L106-400×315B	400	315B
L106-400×400A	400	400A
L106-400×400B	400	400B
L106-450×200A	450	200A
L106-450×200B	450	200B
L106-450×225A	450	225A
L106-450×250B	450	250B
L106-450×300A	450	300A
L106-450×315B	450	315B
L106-450×400B	450	400B
L106-450×400A	450	400A
L106-500×300A	500	300A
L106-500×315B	500	315B
L106-500×400A	500	400A
L106-500×400B	500	400B
L106-500×500A	500	500A
L106-600×200A	600	200A
L106-600×200B	600	200B
L106-600×225A	600	225A
L106-600×300A	600	300A
L106-600×315B	600	315B
L106-600×400A	600	400A
L106-600×400B	600	400B
L106-600×500A	600	500A
L106-600×500B	600	500B
L106-600×600A	600	600A
L106-630×200B	630	200B
L106-630×200A	630	200A
L106-630×225A	630	225A
L106-630×300A	630	300A
L106-630×315B	630	315B
L106-630×400B	630	400B
L106-630×400A	630	400A
L106-630×500A	630	500A
L106-630×500B	630	500B
L106-630×600A	630	600A
L106-700×300A	700	300A
L106-700×400A	700	400A
L106-700×500A	700	500A
L106-700×600A	700	600A

L107 · 90° elbow trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L107-200×150A	200	150A
L107-200×160B	200	160B
L107-200×200B	200	200B
L107-315×110B	315	110B
L107-315×150A	315	150A
L107-315×160B	315	160B
L107-315×200A	315	200A
L107-315×200B	315	200B
L107-315×225A	315	225A
L107-315×250B	315	250B
L107-315×300A	315	300A
L107-315×315B	315	315B
L107-400×200B	400	200B
L107-400×200A	400	200A
L107-400×225A	400	225A
L107-400×250B	400	250B
L107-400×300A	400	300A
L107-400×315B	400	315B
L107-400×400A	400	400A
L107-400×400B	400	400B
L107-450×200A	450	200A
L107-450×200B	450	200B
L107-450×225A	450	225A
L107-450×250B	450	250B
L107-450×300A	450	300A
L107-450×315B	450	315B
L107-450×400B	450	400B
L107-500×300A	500	300A
L107-500×315B	500	315B
L107-500×400A	500	400A
L107-500×400B	500	400B
L107-500×500A	500	500A
L107-600×200A	600	200A
L107-600×200B	600	200B
L107-600×225A	600	225A
L107-600×300A	600	300A
L107-600×315B	600	315B
L107-600×400B	600	400B
L107-600×400A	600	400A
L107-600×500B	600	500B
L107-600×500A	600	500A
L107-600×600A	600	600A
L107-630×200B	630	200B
L107-630×200A	630	200A
L107-630×225A	630	225A
L107-630×300A	630	300A
L107-630×315B	630	315B
L107-630×400B	630	400B
L107-630×400A	630	400A
L107-630×500B	630	500B
L107-630×500A	630	500A
L107-630×600A	630	600A
L107-700×200B	700	200B
L107-700×300A	700	300A
L107-700×400A	700	400A
L107-700×500A	700	500A
L107-700×600A	700	600A
L107-800×300A	800	300A
L107-800×400A	800	400A
L107-800×600A	800	600A
L107-800×800A	800	800A
L107-1000×300A	1000	300A
L107-1200×300A	1200	300A

L108 · 90° tee trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L108-200×150A	200	150A
L108-200×160B	200	160B
L108-200×200B	200	200B
L108-200×200B×110B	200	200B×110B
L108-315×110B	315	110B
L108-315×150A	315	150A
L108-315×160B	315	160B
L108-315×200B	315	200B
L108-315×200A	315	200A
L108-315×225A	315	225A
L108-315×250B	315	250B
L108-315×300A	315	300A
L108-315×315B	315	315B
L108-400×200A	400	200A
L108-400×200B	400	200B
L108-400×225A	400	225A
L108-400×250B	400	250B
L108-400×300A	400	300A
L108-400×315B	400	315B
L108-400×400B	400	400B
L108-400×400A	400	400A
L108-450×200B	450	200B
L108-450×200A	450	200A
L108-450×225A	450	225A
L108-450×300A	450	300A
L108-450×315B	450	315B
L108-450×400A	450	400A
L108-450×400B	450	400B
L108-500×300A	500	300A
L108-500×315B	500	315B
L108-500×400B	500	400B
L108-500×400A	500	400A
L108-500×500A	500	500A
L108-600×200B	600	200B
L108-600×200A	600	200A
L108-600×225A	600	225A
L108-600×300A	600	300A
L108-600×315B	600	315B
L108-600×400A	600	400A
L108-600×400B	600	400B
L108-600×500A	600	500A
L108-600×500B	600	500B
L108-600×600A	600	600A
L108-630×200A	630	200A
L108-630×200B	630	200B
L108-630×225A	630	225A
L108-630×300A	630	300A
L108-630×315B	630	315B
L108-630×400A	630	400A
L108-630×400B	630	400B
L108-630×500B	630	500B
L108-630×500A	630	500A
L108-630×600A	630	600A
L108-700×200B	700	200B
L108-700×300A	700	300A
L108-700×400A	700	400A
L108-700×500A	700	500A
L108-700×600A	700	600A
L108-800×300A	800	300A
L108-800×400A	800	400A
L108-800×500A	800	500A
L108-800×600A	800	600A
L108-800×800A	800	800A
L108-1000×300A	1000	300A
L108-1000×400A	1000	400A
L108-1000×500A	1000	500A
L108-1000×600A	1000	600A
L108-1000×800A	1000	800A
L108-1000×1000A	1000	1000A
L108-1200×300A	1200	300A
L108-1200×400A	1200	400A
L108-1200×500A	1200	500A
L108-1200×600A	1200	600A
L108-1200×700A	1200	700A
L108-1200×800A	1200	800A
L108-1200×1000A	1200	1000A

L109 · 120° tee trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L109-400×300A	400	300A
L109-450×300A	450	300A
L109-500×300A	500	300A
L109-500×400A	500	400A

L111 · 45° left-oblique tee trough base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L111-315×200B	315	200B
L111-500×300A	500	300A

L112 · 45° right-oblique tee trough base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L112-315×110B	315	110B
L112-315×160B	315	160B
L112-315×200B	315	200B
L112-315×225A×160B	315	225A×160B
L112-500×300A	500	300A

L114 · 90° four-way trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L114-200×150A	200	150A
L114-200×160B	200	160B
L114-315×160B	315	160B
L114-315×200B	315	200B
L114-315×225A	315	225A
L114-315×250B	315	250B
L114-400×225A	400	225A
L114-400×300A	400	300A
L114-400×315B	400	315B
L114-400×400A	400	400A
L114-450×225A	450	225A
L114-450×300A	450	300A
L114-450×315B	450	315B
L114-450×400A	450	400A
L114-600×300A	600	300A
L114-600×400A	600	400A
L114-630×300A	630	300A
L114-630×400A	630	400A
L114-1000×300A	1000	300A
L114-1200×300A	1200	300A

L115 · 45° oblique four-way trough base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L115-315×200B	315	200B
L115-315×225×160B	315	225×160B
L115-500×300A	500	300A
L115-600×200B×160B×110B	600	200B×160B×110B
L115-630×200B×160B×110B	630	200B×160B×110B

L120 · Two-pipe convergence straight-way base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L120-315×200A×160B×2	315	200A×160B×2

L121 · Six-way trough chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L121-500×250B×160B×5	500	250B×160B×5

L160 · Five-pipe convergence tee base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L160-400×250B×150A×5	400	250B×150A×5
L160-400×300A×150A×5	400	300A×150A×5
L160-400×400A×150A×5	400	400A×150A×5

L198 · Three-pipe convergence straight-way base

Model as published	Wellhole encoded(mm)	Branch notation encoded
L198-400×250A×150A×3	400	250A×150A×3
L198-400×300A×150A×3	400	300A×150A×3
L198-400×400A×150A×3	400	400A×150A×3

N101 · Starting silt chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
N101-200×110B	200	110B
N101-200×160B	200	160B
N101-200×200B	200	200B
N101-315×150A	315	150A
N101-315×160B	315	160B
N101-315×200B	315	200B
N101-315×200A	315	200A
N101-315×225A	315	225A
N101-315×250B	315	250B
N101-315×300A	315	300A
N101-315×315B	315	315B
N101-400×200A	400	200A
N101-400×225A	400	225A
N101-400×300A	400	300A
N101-400×315B	400	315B
N101-400×400B	400	400B
N101-400×400A	400	400A
N101-450×200A	450	200A
N101-450×225A	450	225A
N101-450×300A	450	300A
N101-450×315B	450	315B
N101-450×400A	450	400A
N101-450×400B	450	400B
N101-500×300A	500	300A
N101-500×400A	500	400A
N101-600×300A	600	300A
N101-600×315B	600	315B
N101-600×400B	600	400B
N101-600×400A	600	400A
N101-600×500B	600	500B
N101-600×500A	600	500A
N101-600×600A	600	600A
N101-630×300A	630	300A
N101-630×315B	630	315B
N101-630×400A	630	400A
N101-630×400B	630	400B
N101-630×500B	630	500B
N101-630×500A	630	500A
N101-630×600A	630	600A
N101-700×300A	700	300A
N101-700×400A	700	400A
N101-700×500A	700	500A
N101-700×600A	700	600A
N101-1000×300A	1000	300A
N101-1000×400A	1000	400A
N101-1000×500A	1000	500A
N101-1000×600A	1000	600A
N101-1000×700A	1000	700A
N101-1200×300A	1200	300A
N101-1200×400A	1200	400A
N101-1200×500A	1200	500A
N101-1200×600A	1200	600A
N101-1200×700A	1200	700A

N102 · Straight-way silt chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
N102-200×160B	200	160B
N102-200×200B	200	200B
N102-315×110B	315	110B
N102-315×150A	315	150A
N102-315×200B	315	200B
N102-315×200A	315	200A
N102-315×225A	315	225A
N102-315×250B	315	250B
N102-315×300A	315	300A
N102-315×315B	315	315B
N102-400×225A	400	225A
N102-400×300A	400	300A
N102-400×315B	400	315B
N102-400×400B	400	400B
N102-400×400A	400	400A
N102-450×225A	450	225A
N102-450×300A	450	300A
N102-450×315B	450	315B
N102-450×400B	450	400B
N102-450×400A	450	400A
N102-500×300A	500	300A
N102-500×400A	500	400A
N102-600×300A	600	300A
N102-600×315B	600	315B
N102-600×400B	600	400B
N102-600×400A	600	400A
N102-600×500B	600	500B
N102-600×500A	600	500A
N102-600×600A	600	600A
N102-630×300A	630	300A
N102-630×315B	630	315B
N102-630×400A	630	400A
N102-630×400B	630	400B
N102-630×500A	630	500A
N102-630×500B	630	500B
N102-630×600A	630	600A
N102-700×300A	700	300A
N102-700×400A	700	400A
N102-700×500A	700	500A
N102-700×600A	700	600A
N102-1000×300A	1000	300A
N102-1000×400A	1000	400A
N102-1000×500A	1000	500A
N102-1000×600A	1000	600A
N102-1000×700A	1000	700A
N102-1000×800A	1000	800A
N102-1200×300A	1200	300A
N102-1200×400A	1200	400A
N102-1200×500A	1200	500A
N102-1200×600A	1200	600A
N102-1200×700A	1200	700A
N102-1200×800A	1200	800A

N106 · 45° elbow silt chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
N106-315×225A	315	225A
N106-400×300A	400	300A
N106-400×400A	400	400A
N106-450×300A	450	300A
N106-450×400A	450	400A

N107 · 90° elbow silt chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
N107-200×160B	200	160B
N107-200×200B	200	200B
N107-315×110B	315	110B
N107-315×150A	315	150A
N107-315×160B	315	160B
N107-315×200A	315	200A
N107-315×200B	315	200B
N107-315×225A	315	225A
N107-315×250B	315	250B
N107-315×300A	315	300A
N107-315×315B	315	315B
N107-400×300A	400	300A
N107-400×315B	400	315B
N107-400×400A	400	400A
N107-400×400B	400	400B
N107-450×300A	450	300A
N107-450×315B	450	315B
N107-450×400A	450	400A
N107-450×400B	450	400B
N107-500×300A	500	300A
N107-500×400A	500	400A
N107-600×300A	600	300A
N107-600×315B	600	315B
N107-600×400A	600	400A
N107-600×400B	600	400B
N107-600×500B	600	500B
N107-600×500A	600	500A
N107-600×600A	600	600A
N107-630×300A	630	300A
N107-630×315B	630	315B
N107-630×400A	630	400A
N107-630×400B	630	400B
N107-630×500A	630	500A
N107-630×500B	630	500B
N107-630×600A	630	600A
N107-700×300A	700	300A
N107-700×400A	700	400A
N107-700×500A	700	500A
N107-700×600A	700	600A
N107-1000×300A	1000	300A
N107-1000×400A	1000	400A
N107-1000×500A	1000	500A
N107-1000×600A	1000	600A
N107-1000×700A	1000	700A

N108 · 90° tee silt chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
N108-200×160B	200	160B
N108-200×200B	200	200B
N108-315×150A	315	150A
N108-315×160B	315	160B
N108-315×200A	315	200A
N108-315×200B	315	200B
N108-315×225A	315	225A
N108-315×250B	315	250B
N108-315×300A	315	300A
N108-315×315B	315	315B
N108-400×225A	400	225A
N108-400×300A	400	300A
N108-400×315B	400	315B
N108-400×400A	400	400A
N108-400×400B	400	400B
N108-450×225A	450	225A
N108-450×300A	450	300A
N108-450×315B	450	315B
N108-450×400A	450	400A
N108-450×400B	450	400B
N108-500×300A	500	300A
N108-500×400A	500	400A
N108-600×300A	600	300A
N108-600×315B	600	315B
N108-600×400A	600	400A
N108-600×400B	600	400B
N108-600×500A	600	500A
N108-600×500B	600	500B
N108-600×600A	600	600A
N108-630×300A	630	300A
N108-630×315B	630	315B
N108-630×400B	630	400B
N108-630×400A	630	400A
N108-630×500B	630	500B
N108-630×500A	630	500A
N108-630×600A	630	600A
N108-700×300A	700	300A
N108-700×400A	700	400A
N108-700×500A	700	500A
N108-700×600A	700	600A
N108-1000×300A	1000	300A
N108-1000×400A	1000	400A
N108-1000×500A	1000	500A
N108-1000×600A	1000	600A
N108-1000×700A	1000	700A
N108-1200×300A	1200	300A
N108-1200×400A	1200	400A
N108-1200×500A	1200	500A
N108-1200×600A	1200	600A
N108-1200×700A	1200	700A

N114 · 90° four-way silt chamber base

Model as published	Wellhole encoded(mm)	Branch notation encoded
N114-200×160B	200	160B
N114-200×200B	200	200B
N114-315×160B	315	160B
N114-315×200A	315	200A
N114-315×225A	315	225A
N114-315×250B	315	250B
N114-315×300A	315	300A
N114-315×315B	315	315B
N114-400×225A	400	225A
N114-400×300A	400	300A
N114-400×315B	400	315B
N114-400×400B	400	400B
N114-400×400A	400	400A
N114-450×225A	450	225A
N114-450×300A	450	300A
N114-450×315B	450	315B
N114-450×400A	450	400A
N114-450×400B	450	400B
N114-500×300A	500	300A
N114-500×400A	500	400A
N114-600×300A	600	300A
N114-600×315B	600	315B
N114-600×400B	600	400B
N114-600×400A	600	400A
N114-600×500B	600	500B
N114-600×500A	600	500A
N114-630×300A	630	300A
N114-630×315B	630	315B
N114-630×400A	630	400A
N114-630×400B	630	400B
N114-630×500B	630	500B
N114-630×500A	630	500A
N114-700×300A	700	300A
N114-700×400A	700	400A
N114-700×500A	700	500A
N114-700×600A	700	600A
N114-1000×300A	1000	300A
N114-1000×400A	1000	400A
N114-1000×500A	1000	500A
N114-1000×600A	1000	600A
N114-1000×700A	1000	700A
N114-1200×300A	1200	300A
N114-1200×400A	1200	400A
N114-1200×500A	1200	500A
N114-1200×600A	1200	600A
N114-1200×700A	1200	700A

Source discrepancies retained:L111-315×200B has 300B in the separate branch column; L160-400×400A×150A×5 has 400A×160A×5 in that column; L198-400×250A×150A×3 has 250B×150A×3. Model codes above remain exactly as printed; these three configurations require clarification before selection.

Utility chambers and accessories

F176 · Valve chamber

Model / published specification	Size / compatibility
F176-700×110B	700×110B
F176-700×160B	700×160B
F176-700×200B	700×200B
F176-1000×110B	1000×110B
F176-1000×110B×110B	1000×110B×110B
F176-1000×160B	1000×160B
F176-1000×200B	1000×200B
F176-1000×250B	1000×250B
F176-1000×315B	1000×315B
F176-1000×355B	1000×355B

Y172 · Grease separation chamber

Model / published specification	Size / compatibility
Y172-315×110B×75B	315×110B×75B
Y172-315×110B×110B	315×110B×110B
Y172-600×110B×110B-1	600×110B×110B-1

Composite grease chamber cover

Model / published specification
315

Special grease chamber cover

Model / published specification
315

P178 · Grease chamber half-basket

Model / published specification	Size / compatibility
P178-300	300

T183 · Communication cable chamber

Model / published specification	Size / compatibility
T183-500×400	500×400
T183-840×450	840×450
T183-950×840	950×840

P173 · Cable chamber joint

Model / published specification	Size / compatibility
P173-300A×160B×110B	300A×160B×110B
P173-400A×100B×6	400A×100B×6
P173-600A×110B×12	600A×110B×12

LS08 · Communication chamber sealing ring

Model / published specification	Size / compatibility
LS08-500×400	500×400

P123 · Reducer joint with sealing ring

Model / published specification	Size / compatibility
P123-75B×80B	75B×80B
P123-110B×75B	110B×75B
P123-110B×115A	110B×115A
P123-110B×140B	110B×140B
P123-160B×110B	160B×110B
P123-160B×150A	160B×150A
P123-200B×110B	200B×110B
P123-200A×110B	200A×110B
P123-200A×150A	200A×150A
P123-200B×160B	200B×160B
P123-200A×160B	200A×160B
P123-200B×200A	200B×200A
P123-200A×200F	200A×200F
P123-200B×200D	200B×200D
P123-200A×200D	200A×200D
P123-200A×200B	200A×200B
P123-200B×210B	200B×210B
P123-200B×250B	200B×250B
P123-225A×150A	225A×150A
P123-225A×200B	225A×200B
P123-225A×200A	225A×200A
P123-225A×250B	225A×250B
P123-250B×110B	250B×110B
P123-250B×150A	250B×150A
P123-250B×160B	250B×160B
P123-250B×200A	250B×200A
P123-250B×200B	250B×200B
P123-250B×225A	250B×225A
P123-250B×270B	250B×270B
P123-250B×315B	250B×315B
P123-300A×200A	300A×200A
P123-300A×200B	300A×200B
P123-300A×225A	300A×225A
P123-300A×250B	300A×250B
P123-300A×300CII	300A×300CII
P123-300A×300F	300A×300F
P123-300A×300CI	300A×300CI
P123-300A×300D	300A×300D
P123-300A×315B	300A×315B
P123-315B×200B	315B×200B
P123-315B×200A	315B×200A
P123-315B×225A	315B×225A
P123-315B×250B	315B×250B
P123-315B×300D	315B×300D
P123-400A×200A	400A×200A
P123-400A×200B	400A×200B
P123-400B×200B	400B×200B
P123-400A×225A	400A×225A
P123-400A×250B	400A×250B
P123-400B×250B	400B×250B
P123-400A×300A	400A×300A
P123-400A×315B	400A×315B
P123-400B×315B	400B×315B
P123-400A×400E	400A×400E
P123-400A×400CI	400A×400CI
P123-400A×400F	400A×400F
P123-400B×400D	400B×400D
P123-400A×400D	400A×400D
P123-400A×400B	400A×400B
P123-400A×400CII	400A×400CII
P123-500A×300A	500A×300A
P123-500B×315B	500B×315B
P123-500A×400A	500A×400A
P123-500B×400B	500B×400B
P123-500A×500B	500A×500B
P123-500A×500CII	500A×500CII
P123-500A×500F	500A×500F
P123-500A×500CI	500A×500CI
P123-500A×500E	500A×500E
P123-500A×500D	500A×500D
P123-500B×500D	500B×500D
P123-600A×400B	600A×400B
P123-600A×400A	600A×400A
P123-600A×500B	600A×500B
P123-600A×500A	600A×500A
P123-600A×600E	600A×600E
P123-600A×600CII	600A×600CII
P123-600A×600F	600A×600F
P123-600A×600CI	600A×600CI
P123-600A×600D	600A×600D
P123-600A×600B	600A×600B
P123-600A×630B	600A×630B
P123-600A×700D	600A×700D
P123-700A×600A	700A×600A
P123-700A×700D	700A×700D
P123-700A×700E	700A×700E
P123-700A×700F	700A×700F
P123-700A×800D	700A×800D
P123-700A×800A	700A×800A
P123-800A×600A	800A×600A
P123-800A×700A	800A×700A
P123-800A×800F	800A×800F
P123-800A×800E	800A×800E
P123-800A×800D	800A×800D
P123-800A×830B	800A×830B
P123-800A×900B	800A×900B
P123-800A×900D	800A×900D
P123-800A×1000D	800A×1000D
P123-1000A×600A	1000A×600A
P123-1000A×700A	1000A×700A
P123-1000A×800A	1000A×800A
P123-1000A×1000D	1000A×1000D
P123-1000A×1000E	1000A×1000E
P123-1000A×1000F	1000A×1000F
P123-1000A×1100D	1000A×1100D
P123-1000A×1200D	1000A×1200D

P132 · Convergent chamber ring, internal insert

Model / published specification	Size / compatibility
P132-1000×700	1000×700
P132-1000×800	1000×800
P132-1200×700	1200×700
P132-1500×1000	1500×1000

P133 · Convergent chamber ring, external insert

Model / published specification	Size / compatibility
P133-1000×700	1000×700
P133-1000×800	1000×800
P133-1200×700	1200×700

P140 · Road surface gutter inlet

Model / published specification	Size / compatibility
P140-300×200-200	300×200-200
P140-420×290-315	420×290-315
P140-450×450-315	450×450-315
P140-650×350-400	650×350-400
P140-700×400-400	700×400-400

P141 · Side gutter inlet

Model / published specification	Size / compatibility
P141-420×290-315	420×290-315

P139 · Confluent reducer joint with sealing ring

Model / published specification	Size / compatibility
P139-200B×150A×110B	200B×150A×110B
P139-200B×160B×110B	200B×160B×110B
P139-250B×110B×3	250B×110B×3
P139-250B×150A×2	250B×150A×2
P139-315B×160B×160B×110B	315B×160B×160B×110B

P127 · End cap with sealing ring

Model / published specification	Size / compatibility
P127-225A	225A
P127-300A	300A
P127-400A	400A
P127-500A	500A
P127-600A	600A
P127-700A	700A
P127-800A	800A
P127-200B	200B
P127-250B	250B
P127-315B	315B

P128 · Upper retaining ring

Model / published specification	Size / compatibility
P128-700	700

P129 · Lower retaining ring

Model / published specification	Size / compatibility
P129-600	600
P129-700	700
P129-800	800

P131 · 45° elbow with sealing ring

Model / published specification	Size / compatibility
P131-300A	300A
P131-400A	400A
P131-500A	500A
P131-600A	600A
P131-800A	800A

P134 · Saddle joint

Model / published specification	Size / compatibility
P134-200×50B	200×50B
P134-200×75B	200×75B
P134-200×110B	200×110B
P134-315×75B	315×75B
P134-315×110B	315×110B
P134-315×150A	315×150A
P134-315×160B	315×160B
P134-315×200B	315×200B
P134-400/450×110B	400/450×110B
P134-400/450×160B	400/450×160B
P134-400/450×200A	400/450×200A
P134-400/450×200B	400/450×200B
P134-400/450×225A	400/450×225A
P134-400/450×250B	400/450×250B
P134-500×110B	500×110B
P134-500×160B	500×160B
P134-500×200A	500×200A
P134-500×200B	500×200B
P134-500×225A	500×225A
P134-500×250B	500×250B
P134-500×300A	500×300A
P134-500×315B	500×315B
P134-600/630×110B	600/630×110B
P134-600/630×160B	600/630×160B
P134-600/630×200A	600/630×200A
P134-600/630×200B	600/630×200B
P134-600/630×250B	600/630×250B
P134-700×110B	700×110B
P134-700×160B	700×160B
P134-700×200A	700×200A
P134-700×200B	700×200B
P134-700×225A	700×225A
P134-700×250A	700×250A
P134-700×300A	700×300A
P134-700×315B	700×315B

P147 · Heat-shrink tape for chamber base

Model / published specification	Size / compatibility
P147-248×200(200A)	248×200(200A)
P147-275×200(225A)	275×200(225A)
P147-375×200(300A)	375×200(300A)
P147-375×300(300A)	375×300(300A)
P147-505×200(400A)	505×200(400A)
P147-505×250(400A)	505×250(400A)
P147-505×300(400A)	505×300(400A)
P147-605×200(500A)	605×200(500A)
P147-605×250(500A)	605×250(500A)
P147-605×300(500A)	605×300(500A)
P147-605×400(500A)	605×400(500A)
P147-720×250(600A)	720×250(600A)
P147-720×300(600A)	720×300(600A)
P147-720×400(600A)	720×400(600A)
P147-840×400(800A)	840×400(800A)
P147-1005×250(800A)	1005×250(800A)
P147-1005×400(800A)	1005×400(800A)
P147-1005×450(800A)	1005×450(800A)
P147-1005×500(800A)	1005×500(800A)
P147-1005×600(800A)	1005×600(800A)
P147-1100×400(1000A)	1100×400(1000A)
P147-1100×450(1000A)	1100×450(1000A)
P147-1100×500(1000A)	1100×500(1000A)
P147-1153×300(1000A)	1153×300(1000A)
P147-1153×450(1000A)	1153×450(1000A)
P147-1153×500(1000A)	1153×500(1000A)
P147-215×150(200B)	215×150(200B)
P147-218×200(200B)	218×200(200B)
P147-265×200(250B)	265×200(250B)
P147-340×100(315B)	340×100(315B)
P147-340×200(315B)	340×200(315B)
P147-428×200(400B)	428×200(400B)
P147-428×300(400B)	428×300(400B)
P147-527×250(500B)	527×250(500B)
P147-1153×400(1000A)	1153×400(1000A)
P147-1640×500(1500B)	1640×500(1500B)

P146 · Heat-shrink tape for wellhole/base connection

Model / published specification	Size / compatibility
P146-215×100(200)	215×100(200)
P146-325×100(315)	325×100(315)
P146-421×100(400)	421×100(400)
P146-465×200(450)	465×200(450)
P146-526×100(500)	526×100(500)
P146-623×100(600)	623×100(600)
P146-650×100(630)	650×100(630)
P146-717×150(700)	717×150(700)
P146-820×150(800)	820×150(800)
P146-995×150(1000)	995×150(1000)
P146-1300×300(1200)	1300×300(1200)

P167 · Heat-shrink tape

Model / published specification	Size / compatibility
P167-505×250	505×250
P167-840×150	840×150
P167-1153×500	1153×500
P167-1250×500	1250×500
P167-1300×400	1300×400
P167-1500×150	1500×150
P167-1500×300	1500×300
P167-1520×200	1520×200
P167-1520×300	1520×300
P167-1600×500	1600×500
P167-1640×400	1640×400
P167-1800×300	1800×300
P167-1800×400	1800×400
P167-1800×450	1800×450
P167-1870×300	1870×300
P167-1870×450	1870×450

P151 · Chamber connection part

Model / published specification	Size / compatibility
P151-200	200
P151-300	300
P151-315	315
P151-400	400
P151-450	450
P151-500	500
P151-600	600
P151-700	700
P151-1000	1000
P151-1200	1200

P163 · Wellhole end cap

Model / published specification	Size / compatibility
P163-315	315
P163-400	400
P163-500	500
P163-600	600
P163-700	700

P156 · Cleaning tool

Model / published specification	Size / compatibility
P156-1M	1M
P156-1.5M	1.5M
P156-2M	2M
P156-2.5M	2.5M
P156-3M	3M
P156-3.5M	3.5M
P156-4M	4M
P156-4.5M	4.5M
P156-5M	5M

Liquefied-gas flame gun

Model / published specification
50

LS01 · Wellhole sealing ring

Model / published specification	Size / compatibility
LS01-315I	315I
LS01-315II	315II
LS01-400	400
LS01-450	450
LS01-500	500
LS01-600	600
LS01-700	700
LS01-800	800
LS01-800II	800II
LS01-1000	1000
LS01-1000II	1000II

P143 · Anti-drop chamber cover

Model / published specification	Size / compatibility
P143-500	500
P143-600	600
P143-700	700
P143-800	800

P175 · Cleanout

Model / published specification	Size / compatibility
P175-200×110B×75B	200×110B×75B

P154 · Mobile ladder

Model / published specification	Size / compatibility
P154-350×400I	350×400I

P155 · Stationary ladder

Model / published specification	Size / compatibility
P155-290×100I	290×100I

P170 · Composite circular cover

Model / published specification	Size / compatibility
P170-200	200
P170-315	315
P170-400	400
P170-450	450
P170-500	500
P170-600	600
P170-630	630
P170-700	700
P170-800	800
P170-1000	1000

P168 · Composite circular sewage cover

Model / published specification	Size / compatibility
P168-200	200
P168-315	315
P168-400	400
P168-450	450
P168-500	500
P168-600	600
P168-630	630
P168-700	700

P169 · Composite circular rainwater cover

Model / published specification	Size / compatibility
P169-200	200
P169-315	315
P169-400	400
P169-450	450
P169-500	500
P169-600	600
P169-630	630
P169-700	700

P177 · Cleanout well cover

Model / published specification	Size / compatibility
P177-200	200

P142 · Extension tube

Model / published specification	Size / compatibility
P142-200A	200A
P142-225A	225A
P142-250B	250B
P142-315B	315B

P179 · Lawn chamber cover with side gutter inlet

Model / published specification	Size / compatibility
P179-420×290-315	420×290-315

P148 · Circular lawn chamber cover

Model / published specification	Size / compatibility
P148-200	200
P148-315	315
P148-400	400
P148-450	450
P148-500	500
P148-600	600
P148-630	630
P148-700	700

P180 · Filter grid

Model / published specification	Size / compatibility
P180-160B	160B

P152 · Water grate

Model / published specification	Size / compatibility
P152-200	200

Tapper drill bit

Model / published specification
—

P150 · Tapper

Model / published specification	Size / compatibility	Opening Size (mm)
P150-75B	75B	90
P150-110B	110B	130
P150-直插110B	直插110B	110
P150-160B	160B	180
P150-200A	200A	255
P150-200B	200B	220
P150-直插200B	直插200B	200
P150-225A	225A	285
P150-250B	250B	270
P150-300A	300A	368
P150-315B	315B	345

P181 · Seven-hole wabbler joint

Model / published specification	Size / compatibility
P181-110B	110B

P171 · Adjustable-angle joint

Model / published specification	Size / compatibility
P171-160B	160B
P171-200B	200B
P171-225A	225A
P171-300A	300A

P124 · Chamber base adapter, external insert

Model / published specification	Size / compatibility
P124-315×400	315×400
P124-315×450	315×450
P124-315×500	315×500
P124-315×600	315×600
P124-315×700	315×700
P124-400×450	400×450
P124-400×500	400×500
P158-400×630	400×630
P124-400×600	400×600
P124-400×700	400×700
P124-500×600	500×600
P124-500×630	500×630
P124-500×700	500×700
P124-600×630	600×630
P124-600×700	600×700
P124-600×800	600×800
P124-600×1000	600×1000
P124-700×800	700×800
P124-700×1000	700×1000
P124-1000×1200	1000×1200

P157 · Chamber base adapter, internal insert

Model / published specification	Size / compatibility
P157-315×300	315×300
P157-315×400	315×400
P157-315×500	315×500
P157-315×600	315×600
P157-400×400	400×400
P157-400×500	400×500
P157-400×600	400×600
P157-500×500	500×500
P157-500×600	500×600
P157-600×600	600×600
P157-600×700	600×700
P157-700×700	700×700

P135 · One-way wellhole joint

Model / published specification	Size / compatibility
P135-315×225A	315×225A
P135-315×225A II	315×225A II
P135-315×250B	315×250B
P135-315×250B II	315×250B II
P135-400×300A	400×300A
P135-400×315B	400×315B
P135-400×400A	400×400A
P135-400×400B	400×400B
P135-700×400A	700×400A
P135-700×500A	700×500A
P135-700×600A	700×600A

P136 · Direct chamber connection

Model / published specification	Size / compatibility
P136-400×300A	400×300A
P136-400×315B	400×315B
P136-400×400A	400×400A
P136-400×400B	400×400B
P136-700×500A	700×500A
P136-700×600A	700×600A

P137 · Two-way convergence joint

Model / published specification	Size / compatibility
P137-315×110B×2	315×110B×2
P137-400×110B×2	400×110B×2
P137-400×160B×2	400×160B×2

P138 · Tee convergence joint

Model / published specification	Size / compatibility
P138-315×110B×3	315×110B×3
P138-400×110B×3	400×110B×3
P138-400×160B×3	400×160B×3

P158 · Five-way convergence joint

Model / published specification	Size / compatibility
P158-400×160B×5	400×160B×5

LS02 · Straight sealing ring for HDPE double-wall pipe

Model / published specification	Size / compatibility
LS02-110B	110B
LS02-160B	160B
LS02-225A	225A
LS02-300A	300A
LS02-400A	400A
LS02-500A	500A
LS02-600A	600A
LS02-700A	700A
LS02-800A	800A
LS02-N225	N225
LS02-N200-SN4	N200-SN4
LS02-N200-SN8	N200-SN8
LS02-N300-SN4	N300-SN4
LS02-N300-SN8	N300-SN8
LS02-N400-SN4	N400-SN4
LS02-N400-SN8	N400-SN8
LS02-N500-SN4	N500-SN4
LS02-N500-SN8	N500-SN8
LS02-N600-SN8	N600-SN8
LS02-N600-SN4	N600-SN4

LS03 · PVC-U double-wall pipe sealing ring

Model / published specification	Size / compatibility
LS03-110B	110B
LS03-160B	160B
LS03-200B	200B
LS03-250B	250B
LS03-315B	315B
LS03-400B	400B
LS03-500B	500B

LS07 · Side pipe sealing ring

Model / published specification	Size / compatibility
LS07-110B	110B
LS07-160B	160B

LS05 · Reducer joint sealing ring

Model / published specification	Size / compatibility
LS05-200B	200B
LS05-250B/225A	250B/225A
LS05-400B	400B
LS05-500B	500B

LS09 · Electrofusion PE KRAH spigot sealing ring

Model / published specification	Size / compatibility
LS09-200A	200A
LS09-300A	300A
LS09-400A	400A
LS09-500A	500A
LS09-600A	600A
LS09-700A	700A
LS09-800A	800A
LS09-1000A	1000A

PE spiral structured-wall gasket socket (spigot)

Model / published specification
200A
300A
400A
500A
600A
700A
800A
1000A
1200A
1400A

PE spiral structured-wall gasket socket (socket)

Model / published specification
200A
300A
400A
500A
600A
700A
800A
1000A
1200A
1400A

Multifunction PE gasket socket (spigot)

Model / published specification
200A
300A
400A
500A
600A
800A
1000A
1200A

Multifunction PE gasket socket (socket)

Model / published specification
200A
300A
400A
500A
600A
800A
1000A
1200A

Parentheses in heat-shrink specifications state the compatible connection size. The source lists P158-400×630 inside the external-adapter table; that designation is retained. In tapper models, 直插 denotes direct-insert. Blank drill-bit specifications remain unspecified.

Unpowered wastewater purification tank: 5-person model

Parameter name	Value
Design population	5
Daily wastewater volume	1.0 m³/day
First anaerobic chamber	0.826 m³
Second anaerobic chamber	0.682 m³
Filter pipes volume	0.013 m³
Water-modulation tank	0.156 m³
Disinfection tank	0.011 m³
Total capacity	1.688 m³
Main body material	PP
Body plate thickness	5.0–10 mm
Filter shape	Net-like coil
Filter material	PP
Filtration media shape	Fiber
Filtration media material	PP
Advection-mouth balls	Ø96 PP balls
Access cover material	Resin concrete or cast iron
Access openings	Ø315 ×2 / Ø400 ×1
Maximum diameter	1600 mm
Height	1725 mm
Inlet pipe bottom dimension	300 mm
Outlet pipe bottom dimension	500 mm
Weight	180 kg

The PP wastewater tank uses anaerobic treatment, filtration and disinfection without an electric blower or pump. Grease chambers collect oily wastewater for cleaning; the catalogue reports oil separation above 90%. Cable chambers use PPB copolymer, with a 250 mm telescopic ring and 200 mm height modules. The catalogue lists PPB melting at 164–170°C and brittle temperature −35°C; the PE option is listed at −70°C.

General engineering data

Source: catalogue printed pages 5–6. All elevations are in mm; A/B nominal-size series follow the source. Blank source cells remain —. These are component effective heights, not installation depth.

Silt-settling chamber base height H1

Municipal/residential chamber base height H4

Silt-settling pit height H2

Chamber cover height H3

Closing cone effective height H5

Testing and load analysis

Falling-weight impact test; branch-pipe shear-force test; dead-load test.

Negative-pressure tests on municipal and residential monolithic chamber structures; external water-pressure test; guide-trough deformation recording.

Load paths: A groundwater buoyancy; B soil shear on branches; C impact on the base; D radial pressure on the shaft; E vehicle and surcharge load.

Source: printed pp7–8. The source identifies these test types but gives no test-method standard numbers, loads or acceptance limits in this chapter.

Catalogue comparison

Source: printed pp9–12. These are manufacturer comparison claims and historical source estimates, not a quotation for installation in Armenia. Costs are CNY; the economic example is for 10 chambers.