21-29 in. HDPE Manhole Insert
21-29 in. HDPE Manhole Insert
Package Quantity Info:
Each: 1-
-
Shipping Not AvailableNot available at this time
Product Details
Product Details
- Reduces inflow
- Reduces treatment plant costs
- Includes valves for gas and vacuum relief
- These manhole inserts are manufactured from HDPE and will not rust or corrode
- They have been proven effective in reducing or preventing surface water in flow to the collection system, through the manhole lid
- The valves are spring loaded and designed to release at 2 psi for vacuum and 1 psi for gas
- HDPE Plus inserts also include a polyethylene gasket for sealing to the manhole frame
- The insert will allow a rate of not more then 1 gallons per 24 hour period
- Each insert is equipped with a heavy-duty polypropylene strap for ease of removal and installation
- Custom manufactured dimensions required
Documents
Specifications
- ASTM:
- ASTM D-1248 Class A
- Application:
- Residential
- Diameter:
- 29 in
- Diameter - Inside 1:
- 21 in
- Material:
- Plastic
- Material Type:
- HDPE
- Product Type:
- Manhole Inserts