Valve inserts are available in Nitrile and Polyurethane material. For low pressure and normal operating conditions, use Nitrile inserts. For high pressure and severe operating conditions, use Polyurethane inserts.
Valve seat has precisely ground tapered outside diameter, which is perfectly matched with pump deck taper to provide metal to metal seal between high pressure and low pressure. Rigid design of three cross arms acts as a guide to valve stem.
The wash pipes are flame spray coated with Nickel, Chrome and Boron Powder wash pipes are also available. These wash pipes render a much longer life as compared to case hardened ones.