In-Line Check Valve (1/2", 3/4", and 1")

FIG 958, 958B

In-line check valves are used to prevent backflow in supply lines on storage tank systems. In-line check valves allow product flow in only one direction. 

Features

Valve functions in horizontal or vertical piping systems

 200 PSI Maximum working pressure

 -40° to 300°F operating temperature range

 Optional 25 PSI (approximate) expansion relief feature is available

Valve functions in horizontal and vertical piping systems. If vertical, flow arrow must be pointing up

 

Construction Details

  • Body: Stainless steel
  • Seals: FKM
Fig Suffix Size Description Weight
958 0500 AV 1/2" Check Valve, Stainless Steel 0.87
958 0700 AV 3/4" Check Valve, Stainless Steel 0.9
958 1000 AV 1" Check Valve, Stainless Steel 1.5
958 10500 AV 1/2" Check Valve, Stainless Steel, With Expansion Relief 0.87
958 10700 AV 3/4" Check Valve, Stainless Steel, With Expansion Relief 0.9
958 11000 AV 1" Check Valve, Stainless Steel, With Expansion Relief 1.5
         
958B 0500 AV 1/2" Check Valve, BSP Threads, Stainless Steel 0.87
958B 0700 AV 3/4" Check Valve, BSP Threads, Stainless Steel 0.9
958B 1000 AV 1" Check Valve, BSP Threads, Stainless Steel 1.5
958B 10500 AV 1/2" Check Valve, BSP Threads, Stainless Steel, With Expansion Relief 0.87
958B 10700 AV 3/4" Check Valve, BSP Threads, Stainless Steel, With Expansion Relief 0.9
958B 11000 AV 1" Check Valve, BSP Threads, Stainless Steel, With Expansion Relief 1.5

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