Non-rising Stem Resilient Seated Gate Valve

Non-rising Stem Resilient Seated Gate Valve

Non-rising Stem Resilient Seated Gate Valve

Type:Z45X
Subtitle:Soft-seated Gate Valve
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.

Product Overview

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.

Applications

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.

Key Features

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

  • Body Materials: Ductile iron (EN-GJS-500-7), cast iron (GG25), or stainless steel (CF8M).
  • Gate Materials: Ductile iron with epoxy coating or stainless steel.
  • Seals: 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).

Operational Advantages

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

FeatureNon-rising Gate ValveGlobe/Control Valves
FunctionOn/Off isolation onlyDesigned for flow regulation
SealingANSI Class VI bubble-tightANSI Class IV (standard)
Pressure DropZero in fully open positionSignificant in throttling positions
MaintenanceMinimal (no throttling wear)Higher (seat erosion from throttling)

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).

Product Parameters

Nominal DiameterDN50–DN600 (2"–24")
Pressure RatingPN10–PN16 (Class 150)
Temperature Range-20°C to 120°C (dependent on seals)
Leakage ClassANSI Class VI (standard)
Connection TypesFlanged (EN 1092-2),
Body MaterialDuctile iron (EN-GJS-500-7), Cast iron (GG25), Stainless steel (CF8M)
Gate MaterialDuctile iron with epoxy coating, Stainless steel
Seal MaterialsEPDM, NBR,

Medium

Summarize

This Non-rising Stem Resilient Seated Gate Valve provides reliable on/off isolation for water, wastewater, and industrial systems. Its maintenance-free design and bubble-tight sealing make it ideal for applications requiring infrequent operation and long-term reliability. Not suitable for flow regulation or throttling.

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Non-rising Stem Resilient Seated Gate Valve
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...