Key features/benefits
These types of valves are mostly forged steel. The body of valve is constructed by welding of all parts except stem housing. No sealing elements are used which might cause leakage through. Inspection and maintenance of such valves may be executed on live line.
Safety Integrity Level (SIL) certified. When required it can be manufactured from special material according to NACE corrosion standards and/or temperature class.
They are especially used in Natural Gas & Crude-Oil Pipelines for above and underground applications. Generally used between -46°C up to 100°C.
Standard is QSL2 acc. to API 6D. It can be manufactured with higher quality levels and special materials.
Features
Two or Three pieces Forged Body (FWB)
Double Block & Bleed (DBB)
Trunnion Ball (TB)
Emergency Sealant Injection (Stem & Seat)
Anti Static Device (ASD)
Above Ground (AG) or Underground (UG)
Full Bore (FB) or Reduced Bore (RB)
Fire Safe Design (FSD)
Body Drain & Vent
Anti blow-out stem
Standards
» Design API 6D, ISO 14313, ASME B16.34
» Face to Face size ASME B16.10 & API 6D
» NACE MR0175, MR0103
» Fire safe valve design, according to API 607,
API 6FA and ISO 10497 standards.
» End Type, Butt weld, ASME B16.25
Operators
» Lever Operated
» Gearbox (G)
» Electric Actuators (E)
» Spring Return Pneumatic Act. (GC, GL, GN, GF)
» Gas Over Oil Actuators (GO, GS, GI)
Functions
ESDV – LBV – BDV – SDV – MOV – MAN
Process Valve Systems
