- Check Valves
Series 7100 Non-Slam Lift Pistion Check Valve
The non-slam piston check valve is designed
for the positive prevention of backflow in gas, air or liquid
systems. Norriseal's use of a teflon spring energized piston
seal ring allows for zero leakage between the piston and the
guide. Piston check valves are available in sizes 1.00"
through 10.00" and with various body and trim material
for corrosive and low temperature applications. Norriseal
piston check valves are ANSI rated for 150 to 2500 RF and
RTJ flanges. Canadian made 1"-4" size valves are
offered with standard NACE MR-01-75 trim and composition plug
for positive shutoff at the plug and seat.