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Baoji Dongjue Petroleum Technology Co., Ltd
APR :Downhole Drill Stem Testing(DST) Tools
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Drain Valve
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Baoji
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Sleeve type drain valve is used to drain the volume fluid and release pressure when string testing finished.The drain valve consists of a ported body, sliding sleeve, and rotating nut, which controls the position of the sliding sleeve
Features
*Allows pressure trapped between two closed valves to be relieved in a controlled manner
* Used to recover large volume fluid samples
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