Russian term
гидравлические затворы, высотой не менее 0,25 м
Outlets of the buildings and facilities (plants) gravity sewerage systems containing flammable and combustible liquids should be equipped with hydraulic locks with a height of not less than 0.25 m. Hydraulic locks design should ensure serviceability and convenience of their cleaning.
Jan 17, 2006 13:37: Nik-On/Off changed "Level" from "Non-PRO" to "PRO"
Proposed translations
water seals no less than 0.25 m (in height)
plumbing trap (or air trap) not less than 0.25 m in hight (or at least 0.25 m high)
hydraulic (gate) valves at least 0.25 m high
A back-flow valve in the common sewer line should allow sewer water to flow from
the house to the ... Hydraulic gate or flap valve (brass or steel) $ 1000 ...
text.lsuagcenter.com/en/family_home/hazards_and_threats/reducing_risk/Stop+Sewer+BackUp.htm - 21k - Cached - Similar pages - Filter
Metropolitan Washington Airports Authority
Regularly uses snakes, plungers, calipers, sewer snakes, high pressure jet sewer
cleaning vehicle, pipe and leak detectors, hydraulic valve turner, ...
www.mwaa.com/employment/jobs/05-142.htm -
в данном случае: shutter
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Note added at 5 days (2006-01-22 18:04:57 GMT)
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для всех остальных указанных типов гидрозатворов высота не является значимым параметром
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