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Cast Stainless Steel Knife Gate Valve

This type of cast stainless steel knife gate valve is designed for improved sealing, extended packing life and reduced maintenance in the toughest corrosive, abrasive liquid slurry or dry material applications including: pulp and paper, mining, waste water, chemical, petrochemical, power, steel, food processing or other Industries.

They feature the exclusive premium packing system consisting of a rounded packing chamber machined to tight tolerance, a matching knife gate with rounded packing chamber edges, anti-extrusion ring and many packing material options to meet the demands of your specific application. Many standard body, packing gland options are available including 304, 316, 317, 254-SMO, 2205 Duplex Stainless Steel, Hastelloy C 276. Standard gate materials also include 17-4PH or 410 Stainless Steel in addition to the materials listed above. Other body, gland and gate materials are available upon request. The stem is stainless steel. The yoke is heavy duty cast carbon steel or cast stainless steel for additional corrosion resistance.

Exclusive premium packing system:

Rounded Packing Chamber machined to tight tolerance;
Matching Knife Gate with rounded packing chamber edges;
Anti-Extrusion Ring and many packing material options to meet the demands of your specific application.

High flow capacity:
Valve Seat inside diameter (I.D.) is equal to the I.D. of standard (ASME B36.10) pipe.

Size range:
2-48″ (50-1200 mm)

Pressure rating:
2-­48″ (50-­1200 mm) – 150 psi C.W.P. (1030 kPa)

Standard Material:

Body: 304 Stainless Steel, ASTM A351 CF8;

Packing: ASP – Self-Adjusting PTFE Braided Packing with AFLAS, Fluoroelastomer Cord to 400ºF (205ºC) (pH Range 0-14);

Gate: 304 Stainless Steel, ASTM A240;

Screw: 304 Stainless Steel;

Washer: 304 Stainless Steel;

Nut: 304 Stainless Steel;

Anti-Extrusion Ring: PTFE, Glass Filled to 500ºF (260ºC) (pH Range 0-14). Used with SMP, TDP, ASP and FGP packing;

Handwheel: Painted, Cast Iron;

Roll Pin: Carbon Steel or 420 Stainless Steel;

Thrust Bearing: Oil Impregnated Bronze;

Yoke Sleeve: Aluminum Bronze;

Stem: 304 Stainless Steel;

Yoke: Cast Steel or 304 Stainless Steel;

Data Plate: 316 Stainless Steel;

Grease Fitting: Zinc Plated Steel.

(Edited by Eloise Tsai)

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