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Douglas Chero

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

Product Range:

Type:

Gate, Globe/Stop/Needle, Piston/Ball/Swing-check, Drop & Block check (Urea Service)

Body joining

Bolted and Welded bonnet (seal or full penetration), Bonnetless and Pressure seal

Execution

Straight, Y pattern & Angle, Bellows Seals, Cryogenic service, Vacuum service, OS&Y, ISRS, …

Motorized

with Electric, Pneumatic actuators,…

Sizes

1/4” to 2” reduced and full bore (Urea service up to 8″)

End connections

SW, Threaded, BW, Hub and Flanged (integral type)

Rating

ANSI class150 to 4500 lbs

Materials

  • 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
Hydro Test
Air Test
Performance Test
Cryogenic Test
Special tests available on request