Description

Technical Parameters

Plastic HDPE Manholes are drainage well structures installed at pipeline intersections, bends, points where pipe diameter or slope changes, drop locations. HDPE Plastic Inspection Chambers can facilitate periodic inspection, cleaning, and maintenance at regular intervals along straight pipelines.PE Underground Manholes are made from high-molecular polymer resin and feature a modular design, typically consisting of a base, shaft, cover, cover seat, and concrete support slab.

Size:

CJ/T233-2006
Item	Manhole shaft specification	Branch pipe ID	Item	Manhole shaft specification	Branch pipe ID
Starting base	315	200	Straight-through base	315	200
		225			225
		300			300
	350	200		350	200
		225			225
		300			300
	450	200		450	200
		225			225
		300Light			300Light
		300Heavy			300Heavy
		400Light			400Light
		400Heavy			400Heavy
	630	300		630	300
		400			400
		500			500
		600			600
	700	300		700	300
		400			400
		500			500
		600			600
	1000 Light-duty	300		1000 Light-duty	300
		400			400
		500			500
	1000 Heavy-duty	300		1000 Heavy-duty	300
		400			400
		500			500
		600			600
		800			800
Elbow base	315	200	Tee base	315	200
		225			225
		300			300
	350	200		350	200
		225			225
		300			300
	450	200		450	200
		225			225
		300Light			300Light
		300Heavy			300Heavy
		400Light			400Light
		400Heavy			400Heavy
	630	300		630	300
		400			400
		500			500
		600			600
	700	300		700	300
		400			400
		500			500
		600			600
	1000 Light-duty	300		1000 Light-duty	300
		400			400
		500			500
	1000 Heavy-duty	300		1000 Heavy-duty	300
		400			400
		500			500
		600			600
		800			800
Cross base	315	200	Cross base	350	200
		225			225
		300			300
	450	200		700	300
		225			400
		300			500
		400			600
	630	300		1000 Heavy-duty	300
		400			400
		500			500
		600			600
	1000 Light-duty	300			800
		400	-
		500	-

Manhole Accessories Specification

Item	Specification	Unit	Item	Specification	Unit
Shaft Sealing Ring	Φ315	pcs	Converging Connector	300200160*110	pcs
	Φ350	pcs	Converging Connector	200160110	pcs
	Φ450	pcs	Gully Grate Inlet	450*320-300	front
	Φ630	pcs	Gully Grate Inlet	450*320-300	side
	Φ700	pcs	Shaft Flared End	315*350	pcs
Branch Pipe Seal Ring	Φ200	pcs		450*630	pcs
	Φ300	pcs		450*700	pcs
	Φ400	pcs	Resin Composite Cover	Φ350,30T	pcs
	Φ500	pcs		Φ500,15T	pcs
	Φ600	pcs		Φ500,30T	pcs
Reducer &45°Seal Ring	Φ250	pcs		Φ700,15T	pcs
	Φ350	pcs		Φ700,30T	pcs
	Φ450	pcs	1000 Shaft Seal Ring	Light-duty Manhole	pcs
	Φ550	pcs	1000 Shaft Seal Ring	Heavy-duty Manhole	pcs
	Φ650	pcs	1000 Molded Shaft Reducer	Eccentric Inner Reducer	Light
Tapered Adapter	300*200	pcs		Eccentric Inner Reducer	Heavy
	400*300	pcs		Eccentric Outer Reducer	Light
	500*400	pcs		Eccentric Outer Reducer	Heavy
	600*500	pcs		Concentric Inner Reducer	Light
45°Elbow	Φ200	pcs		Concentric Inner Reducer	Heavy
	Φ300	pcs		Concentric Outer Reducer	Light
	Φ400	pcs		Concentric Outer Reducer	Heavy
	Φ500	pcs	Saddle Connector	315(450)*75	pcs
	Φ600	pcs		315(450)*110	pcs
Branch Pipe Adapter	200*200	pcs		315(450.630.700)*160	pcs
	300*315	pcs		315*200	pcs
	400*400	pcs		450*200	pcs
	500*500	pcs		630*200	pcs
Square Shaft	300*500	pcs		630*300	pcs
Square Shaft	450*750	pcs		700*110	pcs
Heat Shrink Tape	20CM*2.0	roll		700*200	pcs
Heat Shrink Tape	30CM*2.0	roll		700*300	pcs

Physical-Mechanical Properties of Composites

Item		Condition		Standard
Spiral Wound Structural Wall Well Ribbed Structural Wall Well	Ring Stiffness(KN/m³)	J1,L1		≥4
		J2,L2		≥6.3
		J3,L3		≥8
	Environmental Resistance	Under 30% compression		No delamination,no weld cracking
	Impact Test	20℃±2℃,1kg weight,d90 drop hammer,2.5m height		No rupture or damage
	Weld Tensile Strength/N	D600,D700,D800		≥760
		D≥1000		≥1020
Test Well	Axial Pressure Test	J1,L1 Test pressure ≥20KN J2,L2 Test pressure ≥40KN J3,L3 Test pressure ≥60KN		After pressure release,no rupture,cracks,or deformation
	Lateral Pressure Test	B1 Test pressure ≥10KN B2 Test pressure ≥15KN B3 Test pressure ≥20KN		After pressure release,no rupture,cracks,or deformation
	Impact Test	20℃±2℃,1kg weight,d90 drop hammer,2.5m height		No rupture or cracks
	Axial Pressure Test	B1 Test pressure ≥20KN B2 Test pressure ≥30KN B3 Test pressure ≥40KN		After pressure release,no rupture,cracks,or deformation
Shear Test		Pipe diameter DN/mm for pipe joint connection	Load F/KN	No rupture or cracks
		400	4
		50	6
		630	10
		710	10
		800	10
		1000	12
Leakage Test				Water level reaches the height of the inspection well opening,no leakage in the well body