Strataflo Noiseless Check Valves
Brass Spring Loaded

Strataflo bronze spring loaded check valve. For cold water service to retain liquid in a system preventing loss of prime when liquid source is lower than pump. It prevents backflow by allowing liquid to flow in one direction only. It can be used on the pump suction or discharge depending on the type of work it is performing. They are noiseless and can be mounted either horizontally or vertically. Construction: One piece cast brass body, silicone treated metal reinforced Buna-S tapered rubber poppet, steel spring and stem. Connections: Female NPT (National Pipe Thread) both ends except 3" which is male NPT Pressure to operate: Approximately 1 PSI Working pressure: Up to 200 PSI Maximum temperature: Up to 225 degrees Fahrenheit Not For Air Compressor Service Strataflo Brass Spring Loaded Check Valve 3/4" # 300-075 (B)Pressure to operate: Approximately 1 PSI, Working pressure: Up to 200 PSI, Overall length:3-5/16", Weight: 1 lbs. 300-075List: $28.00Discounted Price $21.00 Strataflo Brass Spring Loaded Check Valve 1" # 300-100 (A)Pressure to operate: Approximately 1 PSI, Working pressure: Up to 200 PSI, Overall length: 3-11/16", Weight:1-1/4 lbs. 300-100List: $37.00Discounted Price $28.00 Strataflo Brass Spring Loaded Check Valve 1-1/4" # 300-125 (B)Pressure to operate: Approximately 1 PSI, Working pressure: Up to 200 PSI, Overall length: 4-1/2", Weight: 2 lbs. 300-125List: $43.00Discounted Price $32.00 Strataflo Brass Spring Loaded Check Valve 1-1/2" # 300-150 (B)Pressure to operate: Approximately 1 PSI, Working pressure: Up to 200 PSI, Overall length: 4-7/8", Weight: 3.75 lbs. 300-150List: $56.00Discounted Price $43.00 Strataflo Brass Spring Loaded Check Valve 2" # 300-200 (B)Pressure to operate:Approximately 1 PSI, Working pressure: Up to 200 PSI, Overall length: 5-9/16" Weight: 4 lbs 300-200List: $89.00Discounted Price $68.00 Strataflo Brass Spring Loaded Check Valve 3" # 300-300 (B)Pressure to operate: Approximately 1 PSI, Working pressure: Up to 200 PSI, Overall length:6-1/4" Weight: 7 lbs. 300-300List: $219.00Discounted Price $167.00 More Valves Disclaimers | F.A.Q