Non-Rising Stem Gate Valve
Resistant
Sealing
Operation
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.
Specifications
Size Range
DN 50 to DN 1200
Body Material
Cast Iron / Ductile Iron / Stainless Steel
Seat Material
EPDM / NBR / Metal Seated
Operation
Manual / Gear / Electric Actuated
Media
Water, Wastewater, Oil
Pressure Rating
PN 10 / PN 16 / PN 25
Gate Material
Ductile Iron / Stainless Steel
End Connection
Flanged
Temperature Range
Up to 120°C (Depends on Seat Material)
Product Images
Frequently Ask Questions
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.
An NRS design is useful in underground installations because there is no rising stem requiring additional vertical space above the valve.
No. The stem rotates in place while the gate moves inside the valve body.
The biggest advantage is its compact vertical design. Because the stem does not rise above the valve, it requires less overhead clearance.
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.
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.
