Non-Rising Stem Gate Valve

Corrosion
Resistant

Leak Tight
Sealing

Automated
Operation

Low Maintenance
Long Life

Alis Valves offers durable Non-Rising Stem Gate Valves designed for applications where space is limited and compact installation is required. In this design, the stem rotates to open or close the valve without moving vertically, making it ideal for underground and confined installations. Engineered for reliability and efficiency, non-rising stem gate valves provide tight shut-off, smooth operation, and long-lasting performance in water distribution, fire protection, and industrial systems.

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Product Specifications and Overview

Size Range

DN 50 to DN 1200

Pressure Rating

PN 10 / PN 16 / PN 25

Body Material

Cast Iron / Ductile Iron / Stainless Steel

Gate Material

Ductile Iron / Stainless Steel

Seat Material

EPDM / NBR / Metal Seated

End Connection

Flanged

Operation

Manual / Gear / Electric Actuated

Temperature Range

Up to 120°C (Depends on Seat Material)

Media

Water, Wastewater, Oil

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Industries Served

Cement

Engineered valve solutions tailored for critical Cement operating processes.

Chemical

Engineered valve solutions tailored for critical Chemical operating processes.

Data centres

Engineered valve solutions tailored for critical Data centres operating processes.

Fertilizer

Engineered valve solutions tailored for critical Fertilizer operating processes.

Applications

Ammonia

High-performance flow automation engineered for Ammonia operations.

CO₂

High-performance flow automation engineered for CO₂ operations.

Compressed Air

High-performance flow automation engineered for Compressed Air operations.

Cryogenic

High-performance flow automation engineered for Cryogenic operations.

Frequently Ask Questions

What Is a Non-Rising Stem Gate Valve?

A Non-Rising Stem Gate Valve, also called an NRS Gate Valve, is a gate valve in which the stem rotates but does not move vertically outside the valve body. The gate moves up and down internally when the handwheel is rotated.

Why Is It Used in Underground Pipelines?

An NRS design is useful in underground installations because there is no rising stem requiring additional vertical space above the valve.

Does the Stem Move Up and Down?

No. The stem rotates in place while the gate moves inside the valve body.

What Is the Main Advantage of an NRS Gate Valve?

The biggest advantage is its compact vertical design. Because the stem does not rise above the valve, it requires less overhead clearance.

How Does a Non-Rising Stem Gate Valve Work?

When the handwheel is turned, the stem rotates and moves the gate internally: Clockwise: Usually closes the valve Counter-clockwise: Usually opens the valve The exact operating direction should be confirmed from the valve marking.

Who Is a Non-Rising Stem Gate Valve Manufacturer in India?

Alis Valves is a Non-Rising Stem Gate Valve manufacturer and supplier in India, providing industrial valve solutions for water treatment, water supply, irrigation, HVAC, industrial pipelines, oil & gas utilities and general process applications. The compact NRS design is particularly suitable for installations where vertical space is limited.