What type of fall protection if provided for a manhole when the hatch is open?

jweddell

Romtec Utilities typically designs lift stations with a bright orange safety grate built into the hatch. The two piece safety grate lies underneath the hatch doors as a secondary fall protection for the well. Lifting the safety grate is assisted with compression springs to alleviate most of the weight.

What is tape coat?

jweddell

Tape coat is a material used to help seal pre-cast concrete barrel joints in manholes. Tape coat is applied around the outside of each barrel joint to prevent leakage at the joint connection. Tape coat is a cold applied, self-adhering tape that helps bond the joints together. Tape coat is used in conjunction with barrel gaskets and Conseal sealant to seal joints in concrete manhole structures supplied by Romtec Utilities. Additionally, the tape coat used …

What is Conseal?

jweddell

Conseal is a sealant used to help seal the joint to joint connection of precast barrels in manhole structures and vaults. The Conseal used by Romtec Utilities is a butyl rubber sealant. This sealant is water tight and very resistant to shrinking, hardening, or oxidizing. Conseal is applied around the perimeter of the top joint’s lower lip on the lower barrel. A seal is formed when an upper barrel is stacked on top of a …

What is a barrel gasket?

jweddell

A barrel gasket is typically an isoprene tube (synthetic rubber) with its own lubrication that is placed between two precast concrete barrels. The gasket helps seal the manhole from water intrusion or leakage at the joints. Barrel gaskets are also made from other materials so that they can be used with different water types and water chemistry. Barrel gaskets are used in conjunction with tape coating and a concrete sealant to seal the joints in …

What are the differences between sealed and non-sealed plug valves?

jweddell

Sealed and non-sealed plug valves each accomplish the same function in the system, but site layout and price can determine which type is used in the design. Site layout determines whether a valve vault is even a possibility. Valve vaults take up space, and some project sites do not allow for much construction outside the wet well. When a valve vault is not feasible, plug valves are located in the ground outside of the wet …