Round Manhole (PPIC) Covers and Bases and Risers available for 320mm and 450mm PPIC Chambers.
Manufactured from polypropylene.
Sizes & Options:
Round Manhole Cover & Frame (25kn loading)
170mm Deep Base
135mm High Riser
Ensure silicone sealant is used to fit the first riser to manhole base and in subsequent riser-to-riser jointing.
The base has 45° entries on either side.
Construct to a maximum depth of 600mm
Round Manhole Cover & Frame (35kn loading)
220mm Deep Base
215mm High Riser
Ensure a ring seal is located between the base and the first rising piece, using silicone lubricant to ease fitting.
The base has 45° and 90° entries on either side.
Construct to a maximum depth of 1200mm