Reference: M7/281/2/671 2/20/2011, Location: Middle East
Category: Ball valves
Scope of Work
Spare for Ajeel Gas Field Scrubber.
# 1 Ball shut valve size 20" rating 600 RF, full Bore, direct drive by double acting cylinder air operated actuator, with all accessories (solenoid valve, check valve limit switch Open-close, pilot valve, tubing) with provision to close the valve through air
volume tank at supply air failure complete with hand wheel hydraulic or Mechanical & gear.
Process data: -
Flow: - 250000 nm3/h
Max pressure: - 41 KG/CM2 operating 30KG / CM2
Temp: - 26°c - 40°c (operating – max)
Fluid: - sour gas, H2S
content: - 0.8 mole%
Materials:-
Body: - ASTM a216 GR WCC
Ball: - A576 GR.1025
Stem: - A322 gr.4140
Trunnion: - A322 GR 4140
Seat ring: - A276 type 316
O-Ring:- Viton
Fitting: - A276 type 316
Studs: - ASTM a193 GR b7m
Nuts: - ASTM 194 GR 2m
Face seal or insert: - Teflon
Seat tightness:-class V with test certificate for materials & seat tightness.
For signal flow: - as per attached DRG.
Notes: all electrical devices to be explosion proof (class I, group D, division 1)
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