Class 600 Knife Gate Valves

Mizztech™ Class 600 Knife Gate Valves

Mizztech™ Class 600 valves are a fully rated ASME Class 600 (PN100) guided shear gate designedfor higher working pressure. Our Mizztech™ Class 600 valves are fully rated ASME Class 600 (PN100) guided shear gate valves, designed for high working pressure.

The Class 600 takes over where most competitors are limited by pressure. The robust design can be upgrated to include Ni-hard wear rings in the inlet and outlet, and a hardened overlay in the seat area. Optional gate coatings assist performance while still providing 100% zero leakage even in high concentration slurries.

The hardened, bevelled edge gate design allows the knife gate to crush, cut and expel solids that may be in the fluid stream. Designed specifically to handle heavy duty slurry applications, its innovative design, industry-leading performance, customisable features and outstanding dependability ensure  they perform under the most demanding service conditions.

Design Features

• Heavy duty construction designed to provide long service life
• Provides bi-directional shut-off 100% zero leakage
• Full ASME 600 design rating
• Full port design reduces pressure drops and minimises turbulence

Applications

• Mining • Power utilities• Coal• Phosphate • Soda ash
• Alumina• Mineral sands

Materials

• Body: A216WCB carbon steel as standard.
• Gate: Hardened 17-4-PH stainless steel as standard.
• Seals: Buna N as standard. Other material options are available.
• Optional materials include Ni-hard wear rings with chromium carbide seat overlay.

Size Range

• 50 mm (2”) through 600 mm (24”)

Maximum Working Pressure

• All sizes 10,200 kPa (1480 psi)*

Flanges

• ANSI B16.5 Class 600
• Other flange options available

Product Features

1. Robust hydraulic cylinder
2. Extra strong 17-4-PH steel cylinder rod
3. Cover made of tough LEXAN polycarbonate material protects internal components and eliminates pinch points
4. Highly visible fluorescent clevis to verify position
5. Heavy duty lockout pin for open and closed position
6. Unique dual transverse seal and scrapers designed to deliver superior sealing even in high cycle applications
7. Split body design allows for easy maintenance
8. Bevelled edge blade cuts through tough solids
9. Fully guided gate eliminates gate movement during closing and prevents gate deformation
10. Optional wear rings protect the body from wear in heavy slurry applications
11. Mechanically retained seal prevents shifting during valve operation. Seal location and seat design are designed to provide full bi-directional sealing and zero leakage.