Brass Check Valves With Rubber Poppets Are Used For Preventing Water, Fuels Or Chemicals From Flowing Backward Into Wells When Not Being Pumped.
Brass Check Valves With Rubber Poppets feature a one-piece cast brass body and are available in several styles. Buna-S Check Valves feature silicone-treated rubber poppets for greater durability than O-rings. Flexibility makes them leak-proof. Buna-S Check Valves are used for cold and warm water service, ethylene and glycol applications. Buna-N Check Valves feature poppets made from rubber molded on a stainless steel stem, with all other internal parts of stainless steel. Buna-N Check Valves are used for use with gasoline, diesel fuel, oil and hydraulic fluid applications. EPD Poppets features an EPD (Ethylene-propylene-diene) rubber poppet on a stainless steel stem, with all other internal parts of stainless steel. EPD Poppets are used for use with chemicals, detergents and salt water. NSF® Listed Check Valves provide the same sizes and specifications listed above made from material containing 0.25% lead or less. Brass Check Valves With Rubber Poppets range in size from 1/2" up to 3".