Douglas Chero was established in 1974 to meet the demand for high quality forged valves in the petroleum refining and production plants, offshore oil and gas fields, power industry, fertilizer, chemical and desalination plants all over the world.
Production capacity soured from 3,000 pieces in 1974 to current 40,000 pieces per month in our new factory with modern state of the art machining facilities and manufacturing technology.
The factory is 25,000 sq.m. (278,000 sq.ft.) of which 9,000 sq.m. (100,000 sq.ft.) are covered.
Forged Steel Valves
Gate, Globe/Stop/Needle, Piston/Ball/Swing-check, Drop & Block check (Urea Service)
Bolted and Welded bonnet (seal or full penetration), Bonnetless and Pressure seal
Straight, Y pattern & Angle, Bellows Seals, Cryogenic service, Vacuum service, OS&Y, ISRS, …
with Electric, Pneumatic actuators,…
1/4'' to 2'' reduced and full bore (Urea service up to 8")
SW, Threaded, BW, Hub and Flanged (integral type)
ANSI class150 to 4500 lbs
Carbon steel – ASTM A105
Killed Carbon steel – ASTM A350 / LF2
Alloy steel – ASTM A182 – F5, F9, F11, F22, F91
Stainless steel – ASTM A182/F304(L), F316(L), F317, F321, F347, F44
Duplex – ASTM A182/F51, F53, F55
Material Test Report
NDE, Mechanical and Chemical Analysis
Special tests available on request