* The SQK Buttweld End 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
* We manufacture a wide range of Process Ball Valves in single, two, and three-piece constructions.The valves are available in full-bore and regular-bore designs, in a variety of end connections and materials to suit customer requirements.
* The valves are of floating-ball design where the ball moves towards the downstream seat,
under pressure, to effect a tight seal.Trunnion-mounted Ball Valve design complies to API 6D
* Wide portfolio of Side-entry and Top-entry designs
* Fugitive emissions - Soft and Metal seated valves complies to ISO 15848-1, Class AH and BH
* Firesafe design - to API 607 and API 6FA
* CE Marking - Meets requirements of Pressure Equipment Directive 2014/68/EU,
Pneumatic shell test conducted at 1.1 times rated pressure to check shell integrity, when required
* Double block and bleed (DBB) feature - Valves are designed and tested for automatic
* cavity relief
* Anti-blowout stem design
* Coil springs used for consistent seat loading and lower operating torque
* Lip seals provided for low temperature services
* Primary O ring and Secondary graphite (in 3 stage stem, thrust washer is primary)
* Wide portfolio of Side-entry and Top-entry designs
* Options: Buried service, Cryogenic
* Offered with Electric, Pneumatic and Hydraulic Actuators
* In-house Tests Capabilities
* Fire-safe to ISO 10497 and API 607
* Mirror-finished solid stainless ball
* Fine-grained PTFE seats
* Cavity Pressure Relief mechanism
* Blowout-proof stem
* High integrity stem sealing �¢?? Belleville springs compensate for wear and thermal expansions
* Size 2" to 56" (50 mm to 1400 mm)
* ASME Class Class 150 to 2500
* Design Standard API 6D
* Size �¼" to 8" (8 mm to 200 mm)
* ASME Class Class 150 to 2500
* Design Standard ISO 17292, API 608, API 6D
* Antistatic feature
* Actuator-mounting flange conforms to ISO 5211
* Single, two and three piece constructions
* Full-bore and regular-bore designs
* Soft and metal-seated
* Offered in carbon steel, stainless steel and duplex stainless steels
