The PTFE Seated Knife Gate Valves from Controtek Global are made to offer outstanding sealing performance in demanding industrial settings, especially when handling sharp or corrosive fluids. These valves are perfect for sectors like chemical processing, water treatment, pharmaceuticals, and food and beverage manufacturing because of the remarkable chemical resistance provided by the PTFE (Polytetrafluoroethylene) seat material. Even in situations with high pressure or high temperature, the PTFE seat guarantees a tight shut-off and reduces leakage. These valves are built with a sturdy knife gate design which successfully manages solids-laden media, slurries, and viscous fluids. The gate can operate more smoothly thanks to the low friction surface provided by the PTFE material, which also has exceptional resistance to corrosion and wear over time.
PTFE Seated Knife Gate Valve - Technical Specification | |
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Manufacturer | Controtek Global |
Valve Type | PTFE Seated Knife Gate Valve |
Body Material | Stainless Steel (SS304, SS316), Carbon Steel (ASTM A216 WCB), or Duplex Stainless Steel |
Gate Material | Stainless Steel or Carbon Steel |
Seat Material | PTFE (Polytetrafluoroethylene) |
Size Range | 2” to 48” (DN50 to DN1200) |
Pressure Rating | ANSI Class 150, 300, 600 (depending on valve size and application) |
Temperature Range | -29°C to +250°C (-20°F to +480°F), depending on PTFE grade and application |
End Connections | Wafer, Lug, Flanged (ANSI B16.5), or Custom |
Operation Type | Manual, Pneumatic, Electric (for automated operation) |
Stem Type | Rising or Non-Rising Stainless Steel Stem |
Stem Packing | PTFE, Graphite, or Combination for enhanced sealing and reduced leakage |
Leakage Class | Class VI (for resilient seats), Metal-to-Metal options available for abrasive applications |
Face-to-Face | As per MSS-SP-81 / Manufacturer Standard |
Actuator Options | Manual Handwheel, Pneumatic Actuator, Electric Actuator (for remote operation) |
Testing Standards | API 598, MSS-SP-81, EN 12266-1 (Shell and Seat Leakage Tests) |
Mounting Standard | ISO 5211 compliant for actuator mounting |
Coating (Optional) | Epoxy Coating for additional corrosion resistance (optional) |
Weight | Varies by size and materials |
Applications | Chemical Processing, Water Treatment, Mining, Pulp & Paper, Food & Beverage, Petrochemical |