The Stainless Steel Flanged Gate Valve is specifically designed for corrosive media applications where carbon steel would rust or contaminate the process. The body, bonnet, and wedge are cast from austenitic stainless steel — CF8 (equivalent to SS304) for general corrosive service, or CF8M (equivalent to SS316) for higher corrosion resistance and acid service. The OS&Y (Outside Screw and Yoke) design places the stem threads outside the pipeline, protecting them from corrosive media and allowing lubrication while the valve is in service. The rising stem provides a clear visual indication of valve position. The seat rings are either integrally cast or renewable (threaded or welded in place). The valve is supplied with integral flanges (ANSI B16.5 or EN 1092-1) for direct bolting to pipeline flanges.
Why Choose Us / Advantage
Material Certificates Included: EN 10204 3.1 mill certificates for all stainless steel castings.
100% Hydrostatic Tested: Shell test at 1.5x rated pressure; seat test at 1.1x.
PTFE Packing Standard: Low friction, chemical resistant stem packing.
NACE MR0175 Available: For sour gas service (H2S) with SS316 material.
Quick Lead Time: DN50-DN300 available in 25-30 days.
Technical Data
★ Specification CF8 (SS304) CF8M (SS316)
★ Body Material Stainless Steel CF8 Stainless Steel CF8M
★ Wedge CF8 + SS304 seat CF8M + SS316 seat
★ Stem SS304 SS316
★ Seat Rings Integral or Renewable Integral or Renewable
★ Pressure Class 150 / Class 300 Class 150 / Class 300
★ Size Range DN50 – DN600 DN50 – DN600
★ Connection Flanged (ANSI / EN) Flanged (ANSI / EN)
Applications
● Chemical plant corrosive fluid isolation
● Pharmaceutical and biotech water systems
● Food and beverage processing lines
● Marine and offshore platform seawater systems
● Pulp and paper mill bleach plants
