Check Valves

Georg Fischer Type 304 Y-Check Valve is a weighted angle check valve and is used to automatically stop flow in the reverse direction when the fluid in the line stops. The valve closes by the dead weight of the weighted seat and functions when mounted in either the horizontal or vertical plane.  Type 304 Y-Check Valves are superior to spring-loaded checks for corrosive service since they are not temperature sensitive. Y-Check valves generally have tighter shut-off characteristics than ball check valves at the same pressures. Georg Fischer Type 304 Y-Check Valves feature a transparent PVC construction which allows for inspection of the position and condition of the valve piston and seat.

Georg Fischer Type 304 Y-Check Valve is a weighted angle check valve and is used to automatically stop flow in the reverse direction when the fluid in the line stops. The valve closes by the dead weight of the weighted seat and functions when mounted in either the horizontal or vertical plane.  Type 304 Y-Check Valves are superior to spring-loaded checks for corrosive service since they are not temperature sensitive. Y-Check valves generally have tighter shut-off characteristics than ball check valves at the same pressures. Georg Fischer Type 304 Y-Check Valves feature a transparent PVC construction which allows for inspection of the position and condition of the valve piston and seat.

Design Features
This multi-purpose check valve provides an extremely low profile and very quick response to back flow without slamming. The special design requires no more space then a piece of pipe, and incorporates a flexible elastomer seal for long life, and is suitable for mounting in any position for greater versatility.
Technical Information
2" through 8" sizes are rated for 150 psi @ 73°F, 10" and 12" sizes are rated for 100 psi @ 73°F. As a general guideline, opening and closing pressures will range from .2 to .5 psi for horizontal applications. Opening pressures tend to decrease in large size valves. Valves installed in vertical up-flow applications will require slightly higher pressures.
Features
• PVC or CPVC construction - no metal components     • Quick response shut-off in any position     • Field replaceable Flex-Seal - EPDM or Viton®
• Assembled with silicon-free, water soluble lubricants     • Available with either spigot, flanged, grooved pipe or male threaded ends
• Sizes now available to 24" pipe size - call for information