The Duplex Stainless Steel Knife Gate Valve from Controtek Global is the best option for demanding industrial applications because of its remarkable strength, resilience to corrosion, and durability. These valves, which combine the advantages of austenitic and ferritic stainless steels, are made from premium duplex stainless steel and offer exceptional resistance to stress corrosion, cracking, pitting, and abrasion. Because of this, they are particularly well-suited for demanding settings like those found in the pulp and paper, offshore, and chemical processing industries. While the duplex stainless steel construction offers improved mechanical properties to withstand high pressure and aggressive media, the knife gate design guarantees effective cutting through thick slurries, solids, and viscous fluids. The valve's strong construction and ability to withstand corrosion contribute to its longer service life, lower maintenance requirements, and increased operational dependability.
Duplex Stainless Steel Knife Gate Valve - Technical Specification | |
---|---|
Manufacturer | Controtek Global |
Valve Type | Knife Gate Valve |
Body Material | Duplex Stainless Steel (e.g., ASTM A890 Grade 4A / A995 Gr. CD4MCu or equivalent) |
Gate Material | Duplex Stainless Steel |
Seat Material | Resilient (EPDM, PTFE, NBR) or Metal-to-Metal (Hard-faced options available) |
Size Range | 2” to 48” (DN50 to DN1200) |
Pressure Rating | ANSI Class 150, 300, or custom ratings (up to PN25 or higher on request) |
Temperature Range | -29°C to +300°C (-20°F to +572°F), depending on seat and seal materials |
End Connections | Wafer, Lug, Flanged (ANSI B16.5, DIN, or custom drilling) |
Operation Type | Manual (Handwheel/Lever), Pneumatic Cylinder, Electric Actuator |
Stem Type | Rising or Non-Rising, made from stainless steel |
Stem Sealing | PTFE, Graphite, or combination packing sets for superior sealing performance |
Face-to-Face Dimensions | As per MSS-SP-81 or manufacturer standard |
Leakage Class | Class VI for resilient seat, Class IV or V for metal seated variants |
Mounting Standard | ISO 5211 compliant flange for direct actuator mounting |
Testing Standards | API 598, MSS-SP-81, EN 12266-1 (Hydrostatic shell and seat tests) |
Optional Features | Purge ports, position indicators, limit switches, proximity sensors, epoxy coating |
Applications | Marine, Mining, Offshore, Chemical Processing, Desalination, Pulp & Paper, Power Generation |
Certifications | CE Marking, ISO 9001, PED Compliance (upon request) |