Steam pressure pneumatic valve outlet pressure of appreciation and pipe volume

. Pressure and flow characteristic test method is to first set import and export pressure, under the differential pressure changes of outlet flow %, or fixed flow and change the % of inlet pressure, outlet pressure were measured at this moment, the partial values conform to the table. As a qualified in the regulations.
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。 Pneumatic valve steam traps
steam drain a lot of type pneumatic valve, or more test items, and according to GB/T - test - ( ( Pneumatic valve steam traps test method 'and JB/T - ( ( Steam trap technical conditions '. Generally only for water pressure strength test, compression test and test.
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(1) strength test and any other kind of pneumatic valve. Times the nominal pressure of hydraulic pressure test.
3. Alternating motion test is saturated steam and water is piped in, test times no less than time. Test pressure at the highest working pressure and the minimum working pressure, respectively, with nimble and no leakage as qualified. Steam hydrophobic action of pneumatic valve test and sealing test is usually carried out in laboratory. Pneumatic valve steam traps steam leakage quantity determination of test method and the condensate displacement measurement according to GB/T - test method - In appendix A and B in the appendix.
pneumatic valve steam traps in addition to the water pressure strength test, compression test and action test, and hot water displacement test, super-cooling degree test, the maximum allowable back-pressure rate test, leakage rate test, air discharge capacity test, the minimum working pressure experiment, the maximum working pressure, etc, depending on the circumstances. http://www。 zgbfw。 com/info/