Screwed End Gate Valve
Main features
* Bolted body-bonnet design for valves up to Class 800, 1500, 2500, 4500. Valves with welded bonnet also available on request
* Screwed with a seal-welded body-bonnet design for valves of Class 1500,2500, 4500.
* Bellows-sealed Gate and Globe valves available in Class 800
* 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
