Handwheel Operated Knife Gate Valve

Key Specifications:

• Nominal pressure: 0.6, 1.0, 1.6, 2.5MPa and 150lbs
• Nominal size: DN 50 to 1,200, 2 to 24-inch
• Suitable temperature: -38 to +650℃ (range of temperature subject to the material of sealing and property medium)
• Connecting flange: ANSI B16.5, JIS, DIN and BS
• Material: WCB/ZG1Cr18Ni9Ti, CF8, CF8M, CF3 and CF3M
• Seal type: stainless steel (metal seal), Teflon (soft seal)
• Leakage:
  • For metal seal: grade D
  • For soft seal: grade A

Key Features:

1. Material:

   • Body Material: Typically made from cast iron, ductile iron, stainless steel, or other durable materials, depending on the application.

   • Gate and Seat: The gate is often made of stainless steel or hardened steel, while the seat may be made of elastomers (e.g., EPDM, NBR) or metal, ensuring tight sealing and wear resistance.

2. Knife Gate Design:

   • The valve features a sharp-edged gate that can cut through thick fluids, slurries, and solids, preventing clogging and ensuring smooth operation.

   • The design allows for minimal pressure drop when fully open.

3. Handwheel Operation:

   • The valve is operated manually via a handwheel, which provides precise control over the gate movement.

   • The handwheel is ergonomically designed for easy operation, even in demanding conditions.

4. Applications:

   • Ideal for handling abrasive, corrosive, and viscous media in industries such as mining, wastewater treatment, pulp and paper, chemical processing, and power generation.

5. Standards:

   • Manufactured in compliance with international standards such as ISO, API, and ASME, ensuring reliability and compatibility with global systems.

Advantages:

• Efficient Flow Control: The knife gate design ensures smooth flow of heavy and viscous fluids, slurries, and solids.

• Durability: Robust construction and high-quality materials provide long-lasting performance in harsh environments.

• Tight Sealing: The gate and seat design ensures leak-proof sealing, even under high pressure.

• Easy Operation: The handwheel allows for simple and precise manual control.

• Low Maintenance: The design minimizes wear and tear, reducing the need for frequent maintenance.