Non-rising Stem Resilient Seated Gate Valve

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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.
Label：Water gate valve
Category：Soft seal gate valve
Working conditions：Air conditioning system, Building Construction, sewage treatment plant, water plant
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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

oil, water

Working conditions

Air conditioning system, Building Construction, sewage treatment plant, water plant

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
tag:Water gate valve
Category: Soft seal 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...