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Subject: Основание привода? (actuator) drive thrust base and non-thrust base gen. Как-то плохо у меня с приводами и исполнительными механизмами.thrust base - это какое основание? основание ли? Normally, the Tefulong actuator is mounted on the valve with drive base. There are two kinds of bases: thrust base and non-thrust base. Both of their key parts are drive bush which are directly mounted on the valve stem. The drive bush for thrust base has the type of trapezoidal screw threads, and for non-thrust base has the key, three jaws or square shaft. In general, the drive bush is either machined depending on the data of valve factory or machined by users (It should be removed before machining). |
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Вот теперь и actuator та называют: thrust и non-thrust/ The actuator can be mounted on the valve directly with the drive base (except unmachined) before leaving the factory. a) Before the thrust actuator is mounted on the valve, enable the drive bush onto the threaded valve stem, then engage “hand” and wind the handwheel anticlockwise to engage the drive bush onto the stem. Continue winding until it closes to the valve flange, then wind two or more turns, fit securing bolts tighten fully. b) When the non-thrust actuator is mounted on the valve, place the drive bush on the valve stem, fit securing bolts tighten fully. О, горе, Федоре, горе. :( опять я сама с собой |
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link 5.03.2012 0:05 |
| Основание/привод, передающий (ну или воспринимающий) упор "thrust" (от тарелки клапана что ли?) и, соответственно - не предназначенный для этого ("non-thrust")... |
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