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| surface safety valve (НКО andrushin) | |||
| surface safety valve (master; фонтанная задвижка; задвижка и клапан - суть разные типы запорной арматуры. Surface Safety Valve (SSV) is a pneumatic or hydraulically actuated fail-safe close gate valve used for well testing or production of oil and gas wells with high flow rates, high pressures, or the presence of H2S. Из этого определения следует, что SSV - задвижка, ибо есть gate. traduiser) | |||
| SSV (surface safety valve); surface safety valve | |||
| surface safety valves | |||
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| SSV (surface safety valves) | |||
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| surface safety valve | |||