W-type vacuum pump test and acceptance

1 Preparation before the test 1.1 The lubrication points and crankcase according to the provisions of lubricating oil, grease.
1.2 Check the auxiliary equipment, pipeline valves and instruments installed is good.
1.3 Check the tightness of the ministries are fastened. Security guards are solid and reliable.
1.4 Check the cooling water is smooth.
1.5 disc check whether there is any abnormal phenomenon.
1.6 Open vent valve and exhaust valve, close the intake valve.
2 test 2.1 Immediately after starting the parking, check the direction of operation, confirm the correct and then restart.
2.2 Close the vent valve, listen to the cylinder and crankcase with or without impact and other abnormal sound, check the vacuum gauge, ammeter indicates normal.
2.3 Check cooling and lubrication system is working properly.
2.4 degree of vacuum to meet production requirements.
2.5 check the ministries temperature.
2.5.1 Cooling water outlet temperature does not exceed 35 ℃.
2.5.2 eccentric ring temperature does not exceed 50 ℃. .
2.5.3 valve temperature does not exceed 90 ℃.
2.5.4 Rolling and plain bearings temperature does not exceed 75 ℃ and 65 ℃.
3 Acceptance Inspection quality in line with the requirements of this procedure, maintenance records complete and accurate, 2-4 hours after the load operation, after checking the normal operation of various ministries, technical performance is good, to nameplate output or capacity, can be handled according to the provisions of the acceptance process, transfer of production .

Search Keyword: More Pump Technical Articles

Human Candles

For human candle,here are several shape,like Halloweens human death`s head skull candles,Married couple figure human candle.

A 7 inch tall dual wick candle. This candle presents a man & woman back to back on a heart shaped base. The two figures are separate from each other until they are joined at the base enabling this candle to be cut in half at the base to allow for more options in working with the candle.

We-Shijiazhuang huaming candle CO., Ltd –is a professional manufacturer ands exporter for candles.

We mainly produce White candle, Bright candle, Tea-light candle, Spiral candle, Church candle, Taper candle and Gift candle. By the high quality and competitive price, our goods find a very good market in Africa, the Middle East,Southeast Asia, Europe, and South America, in more than 30 countries and regions.
Keeping the principle of "Customer first; reliable service", we are doing every effort to thank good cooperation and great support from our customers with our continuous process, good products, competitive price and circumspect service.
Looking forward to establish business with you


Human Candles

Human Candles,Red Human Figure Candle,Hallowmas Human Death'S Head Skull Candle,Married Couple Figure Human Candle

Hebei Huaming Laye Limited Company , https://www.huamingcandles.com