PEC Inflow Protector Insert
1.0 Scope
1.1 Under this item, the contractor shall supply to manufacturer's recommendations an insert as shown .
2.0 MATERIALS AND DESIGN
2.1 General
The insert and components shall be manufactured from corrosion-proof material suitable for atmospheres containing H2S and dilute H2SO2 gases associated with wastewater collection systems.
2.2 The Body
The insert body shall be made from Acrylonitrile Butadiene Styrene plastic that meets Federal Standards of LP 1183 and can pass ASTM test requirements: D 256, D 638, D 790, D 792, D 785, D 648.
The thickness shall not be less than 3/32". The insert body shall be manufactured to the dimensions as shown on the contract drawings to allow easy installation in the manhole frame. The insert body shall not have an overall depth exceeding 6 1/2".
2.3 Gasket
Gasket shall be made of closed cell neoprene.
2.4 Relief Vent
The gas relief vent shall be designed to relieve at a pressure of 3" W.C. or less. The vent tube shall be capable of sealing out dirt and small debris. The relief vent shall have no metal parts.
Vent shall be positioned to allow the shallowest practicable insert design.
Vent shall be designed with a one way valve to allow water to drain, but no air to pass through it.
2.5Lift Strap
Insert shall have a lift strap attached to the body. Straps shall be made of 1” width nylon . Lift strap shall be attached to insert canister containing 20 pounds of Zocarbon/Ox pellets which canister shall be ventilated to allow gases to pass through the media. The canister shall allow for replacement of media without removal of the insert from the manhole.
2.6 Sizing
Insert shall be manufactured to fit the manhole frame rim from which it hangs. Specific field measurements are required .
3.0 INSTALLATION
3.1 Manhole frame rim shall be cleaned of all dirt or debris before placing the insert.
3.2 Insert shall be fully seated around the manhole frame between the insert and the manhole frame rim.
4.0 FIELD TESTING AND TRAINING
4.1 Insert shall not allow more than 10 gallons/24 hours to drain through the insert.
4.2 No training is required.
REQUIRED INFLOW PROTECTOR MEASUREMENTS
A – Manhole frame diameter (flat bearing surface)______
B – Inside frame diameter (clear opening)______
C – Drop ring diameter ______
D – Drop ring depth (from cover underside, outside edge)______
Fax these dimensions (A,B,C,D, for each manhole) toll free to 866-422-0018 to receive your quote.
