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ent instrument after the demolition of the joints coated with oil or blending paint

time2012/02/26

ent instrument after the demolition of the joints coated with oil or blending paint, and tighten the screws.ent instrument because of the air or the inlet gas accumulation, or the end of the valve in the pump body lax off the irrigation water dissatisfaction, a serious leak of the vacuum pump packing, gate or door closed lax. ent instrument exclusion method: First the water pressure up, and then pump filled with water, and then boot ent instrument at the same time check the check valve is tight, piping, fittings or without air leaks, and found the leak. .