Both types of exhaust valves
are equipped with a drain to ensure that they are easy to clean up when impurities accumulate. At the same time, ZhengFeng conducted a 1-meter water column low-pressure seal test on the exhaust valve, because the water pressure will be very low when the exhaust valve is slightly exhausted under the working condition. If the water column low-pressure test is not conducted, it is likely that the leakage of the exhaust valve will cause damage to the elevator well or other places. Other exhaust ability also is particularly important on the relationship between the exhaust valve
is abundant sewage water with exhaust valve with exhaust valve
, can satisfy the trace exhaust and dual working condition, a large amount of exhaust, after all, the pump has just started, the pipe is filled with air, this time need a lot of exhaust, but in a large number of exhaust is completed, the pipe is filled with water, then need to trace the exhaust in completely emptying air in the pipe. For air valve could be used on outdoor pipes, is abundance for all types of air valve using epoxy for air valve may be used on outdoor pipe, is abundance for all types of air vent valve used epoxy resin coating, the epoxy resin coating thickness of body surface also has a request, to meet all kinds of outdoor environment for the influence of coating, the plastic parts also adopted high temperature resistant corrosion resistant of high quality materials to ensure that outdoor can be used for a long time.