Non-Rising Stem Gate Valve

Size Range

NPS2 to NPS24

Pressure Class

Class 600 / PN100 to Class 2500 / PN420

Standards

API 600, API 603, ASME B16.34

Configure your variant(manually adjust box on the right if you require a different spec)

Pressure

Class 600Class 900Class 1500Class 2500PN100PN160PN250PN320PN400

Materials

All available material options per part. Click a pill to set it in the configurator.

body

Carbon SteelStainless SteelAlloy Steel

Features

• Stem and nut arranged on the gate plate; stem rotates but does not rise outside the valve
• Trapezoidal thread at base of stem converts rotary motion to linear gate travel
• Guide mechanism in valve body prevents gate rotation during opening and closing
• Wedge gate does not contact seat surface prior to final closure, reducing seat wear
• Low fluid resistance; straight-through internal flow path with no change in flow direction
• Low opening and closing torque
• Bidirectional flow installation
• Reduced risk of water hammer
• Full bore opening when gate height equals valve bore diameter
• Valve stem apex used as full-open position indicator

Notes

• At full open position, the open state cannot be monitored during operation; stem vertex is used as full-open indicator
• Main materials listed as 'Carbon Steel, Stainless Steel, Alloy Steel, Etc.' — additional materials available on request

Description

A non-rising (rotating) stem gate valve in which the stem and nut are arranged on the gate plate; handwheel rotation drives the stem to lift the gate via a trapezoidal thread converting rotational motion to linear motion. The valve body incorporates a guide mechanism to prevent gate rotation during opening and closing, ensuring accurate seat sealing. The wedge gate does not contact the seat before final closure, reducing seat wear.

Available pressure classes

Pressure classes this product is rated to.