API - 614
API - 614
(OP)
On API-614 (Lubrication, Shaft-Sealing, and Control-Oil Systems and Auxiliaries for Petroleum, Chemical and Gas Industry Services), item 6.4.9.5 says "Control valve(s) may be either DIRECT-ACTING or pneumatically-operated.".
1 - What is a direct-acting valve? Is is the same as a self-regulated valve?
M Assunpcao
1 - What is a direct-acting valve? Is is the same as a self-regulated valve?
M Assunpcao





RE: API - 614
John
RE: API - 614
From this quote i would say that direct acting is a valve that's hydraulic/electrical/mechanically actuated.