Stainless Steel Knife Gate Valve
- Type: Unidirectional Knife, Bidirectional Knife, Lug Type Knife, Wafer Type Knife, Through Conduit Knife, Slurry Knife, Resilient Seated Knife, Metal Seated Knife
- Pressure Ratings: PN6, PN10, PN16, PN25, PN40; Class 150, 300, 400, 600, 900, 1500, 2500
Stainless Steel Knife Gate Valve
Golden Sunbird Metals’ Stainless Steel Knife Gate Valve delivers reliable isolation and tight shutoff for the toughest industrial applications involving slurries, viscous fluids, pulp, wastewater, and media with high solids content. Designed and manufactured to MSS SP-81 standards, these robust valves are available in wafer, lug, flanged, and threaded configurations, with sizes ranging from 2″ to 48″ and pressure ratings from PN6 to PN40 (Class 150–600). Crafted from premium corrosion-resistant stainless steel (CF8, CF8M, F304, F316, F316L), the valves feature a sharp-edged gate for excellent cutting action, bi-directional sealing, and replaceable PTFE, EPDM, or metal seats. The compact, low-maintenance design ensures minimal pressure drop, non-clogging performance, and long service life even in abrasive and corrosive environments. Ideal for pulp & paper, mining & minerals, wastewater treatment, chemical processing, power generation, and bulk handling systems, our Stainless Steel Knife Gate Valves combine superior durability, smooth operation, and CE-certified quality to keep your processes running safely and efficiently.
Stainless steel knife gate valves
Technical Specifications
| Category | Details |
| Valve Type | Stainless Steel Knife Gate Valve |
| Design Standard | MSS SP-81, ASME B16.5, API 609 |
| Manufacturing Standard | ISO 9001 |
| Inspection and Test Standard | API 598, EN 12266 |
| Size Range | Typically from 2 inches to 48 inches |
| Pressure Rating | ANSI Class 150 – Class 600 / PN10 – PN40 |
| Connection Type | Wafer Type, Lug Type, Flanged (ASME B16.5), Threaded (NPT, BSP) |
| Body Material | Stainless Steel (F304/F304L, F316, F316L, CF8, CF8M) |
| Gate | Material: Stainless Steel (304, 316, 316L) |
| Seat | Material: PTFE, EPDM, NBR, Metal (e.g., Stainless Steel, Inconel) |
| Stem | Material: Stainless Steel (304, 316, 316L) |
| Packing | Material: PTFE, Graphite |
| Gasket | Material: PTFE, Graphite, Spiral Wound Gasket |
| Actuation Methods | Manual (Handwheel or Gear Operator), Pneumatic Actuator, Electric Actuator, Hydraulic Actuator |
| Applications | Pulp and Paper Industry, Mining and Minerals, Wastewater Treatment, Chemical Processing, Power Generation, Bulk Handling |
| Features | Bi-directional Shutoff, Low-Pressure Drop, Non-clogging Gate Design, Replaceable Seats and Seals, Corrosion Resistant |
| Operating Temperature | Typically -20°C to 200°C (-4°F to 392°F), but can vary based on materials and design |
| Certifications | CE Marking |
| Maintenance | Low Maintenance due to Simple Design; Easily Replaceable Seats and Seals |
