Double Door Check Valves
9000 Series	Very short length, results in lowest purchase and installation costs. Double doors are spring loaded for fast non-slam shut-off against rubber seat in the body. Recommended for Refineries, Petro Chemical Plants, and Water Pump Stations, Body and Door material-Iron, Steel, Bronze or Stainless. Spring and Hinge Pin-Stainless. Body Seal-Buna-N or other materials for higher temperature rating. Ratings 125#, 250#, 300#, 600#, 900#, 1500#, 2500# class. Stock to 12 weeks. Sizes 2" thru 72".
Technical Drawings   S -9000 C-9000
Silent Check Valves
300 Series 600 Series	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. Ratings 125# thru 600# class. Available Immediate or maximum 8 weeks. Sizes 1" thru 10".
Technical Drawings   C-300 S -300 C-600 S -600
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