Non-rising Stem Resilient Seated Gate Valve

产品概览

The Non-rising Stem Resilient Seated Gate Valve is a durable on/off isolation solution designed for water distribution, wastewater treatment, and general industrial applications. Featuring a non-rising stem and resilient seated design, it ensures compact installation, reliable sealing, and low maintenance. This valve is strictly designed for full-open or full-close service, not for throttling or flow regulation.

应用

Water Distribution: Mainline isolation and shut-off.
Wastewater Treatment: Slurry and sewage line isolation.
Industrial Processes: Fluid isolation in chemical and petrochemical plants.
Irrigation Systems: On/off control in agricultural water networks.

主要功能

Non-rising Stem Design

• Compact Installation: Stem does not rise, saving vertical space.
• Low Torque Operation: ACME threaded stem ensures smooth actuation.
• Corrosion Resistance: Stem fully enclosed within the valve body.

Resilient Seated Design

• Bubble-Tight Shutoff: EPDM/NBR seat provides ANSI Class VI sealing.
• Zero Leakage: Resilient seat adapts to gate movement for perfect sealing.
• Maintenance-Free: No lubrication required for seat and gate.

Valve Construction

• 车身材料: Ductile iron (EN-GJS-500-7), cast iron (GG25), or stainless steel (CF8M).
• Gate Materials: Ductile iron with epoxy coating or stainless steel.
• 密封件: EPDM, NBR, or Viton (-20°C to 120°C).

Operational Features

• Full-Bore Design: Zero flow restriction in fully open position.
• Bidirectional Sealing: Effective isolation in both flow directions.
• Fire-Safe Option: Metal-to-metal backup sealing (optional).

运行优势

Instant Shutoff: Achieves full closure within 90° handwheel rotation.

Space-Saving: Ideal for underground or confined installations.

Corrosion Protection: Epoxy-coated gate and body (optional).

Low Maintenance: No stem packing adjustment required.

Comparison with Throttling Valves

Selection Guidelines

Potable Water: EPDM seals + NSF 61 certification.

Abrasive Media: Stainless steel gate + hardened seat.

High-Cycle Duty: Lubricant-free stem design (10,000+ cycles).