* The SQK Extended Stem Gate Valve is exceptionally sturdy, rugged, and durable, with a reputation for quality, integrity, and long service.
* They are designed for tight sealing and ease of operation. The valves are available flanged & butt-weld ends in pressure rating from ASME Class 150 to Class 2500, and in a variety of materials of construction.
* Gate Valves are of flexible wedge design, outside screw and yoke, and bolted-bonnet construction. The valves conform to SQK OS & Y Gate Valve.
Main features
* Bolted body-bonnet design,seal welded & Valves with pressure seal bonnet
* Bellows-sealed Gate and Globe valves available
* Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks
* Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor
* T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598
* Rolled ACME thread on stem for smooth operation
* Tapered shoulder on the stem for back seating
* Self-aligning type gland assembly with stud-and-nut tightening
* Integral hard-faced body seat for globe and check valves
* Spring-loaded disc on check valves suitable for no horizontal applications too
* Gate and globe valves can be offered with electrical actuators
* Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion
* Valves can be offered to NACE MR-0175 and other special NACE requirements
