Adjustable Spring Check Valve, 1" Size, 4-17 lbs. Opening Pressure, 5-1/4" Body Length

Adjustable spring check foot valves are used in a variety of systems where back flow is not desired and where a greater opening pressure is needed. Common applications include industrial plumbing, elevated irrigation lines, swimming pools, spas, and more. These 1" adjustable PVC check valves offer a lightweight yet durable option for dependable valve performance in almost any system. Valves feature a tough PVC body with an adjustable stainless-steel spring (factory set at 5 PSI). To loosen and lower spring tension, simply turn the octagonal stem counterclockwise to reach desired opening pressure setting. Pressure adjustments are a ratio of 1-1/2 turn per 1 lb. pressure. PVC adjustable spring check valves can retain a column of water with 12' to 36' head.

Technical Specs:

• Type: Spring Check Valve
  
• Style: Adjustable Spring
  
• Port Size: 1"
  
• Body Length: 5-1/4"
  
• Body Material: PVC
  
• Seal Material: EPDM
  
• Connection Type: 1" FPT
  
• Opening Pressure: 4 – 17 lbs.
  
• Max Working Pressure: 200 PSI at 72° F
  
• Max Temperature Rating: 140® F