Apco 600 Series (Globe Style) Silent Check Valves
- Manufacturer: APCO
- Valve Type: Check Valves - Swing Check / Dual Plate Check / Ball Check / Piston Check / Flap Check / Wafer Check / Non Slam Check
- Sub-Type: Apco Silent Check Valves
- Sizes 3" thru 42".
- Ratings 125# thru 600# class.
Excellent to prevent Water Hammer, in multi-story buildings and vertical turbine pump installations, when pumping from a well to an elevated reservoir. The Valve closes, SILENTLY! Low in cost, reliable and requires no regular maintenance. Principle of operation: When pump stops, spring forces disc closed instantly against slight pump head at zero velocity, (theoretically a static condition) hence, SILENT CLOSURE!
Body - Cast Iron, Ductile Iron, Cast Steel, Stainless Steel or Bronze. Internals - Bronze, Stainless.