Gate Valves

Specification Item	Technical Details & Standard Features
Design Standards	API 600, ASME B16.34, API 598, API 607 / ISO 10497
Size & Pressure Range	NPS 2″ ~ 72″ (DN50 ~ DN1800); Class 150# to 2500#
Structures	Outside Screw & Yoke (OS&Y), Bolted Bonnet or Pressure Seal Bonnet, Rising Stem, Non-rising Handwheel.
Wedge Types	One-piece flexible wedge (standard), Solid wedge (on request), Parallel Slide two half spring-loaded discs.
Standard Features	Straight-through bore configuration for minimum fluid turbulence, friction loss, and erosion. Precision ACME stem threads with single or double start for fast stroke operation. Integral backseat shoulder to allow packing replacement under line pressure. Stem packing designed for optimum fugitive emissions control complying with API 624 / ISO 15848-1. Parallel slide option eliminates thermal jamming in high temperature steam lines.

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