The main components of WQ submersible sewage pump are composed of impeller, pump body and base submersible motor. The pump and the motor are the same shaft. Since the pump is located at the bottom of the entire sewage pump, it can pump as much sewage as possible. The double runner design o ......
Submersible pump usage conditions: 1. The rated frequency of the submersible pump is 50±1%HZ for the voltage and frequency of the submersible pump, and the three-phase AC power (380±5%)V (except for special order) should be guaranteed at the motor terminal voltage. 2. Submersible p ......
Gate valve installation and maintenance should note the following: Hand wheel, handle and transmission are not allowed to lift, and no collision. Double gate valve should be installed vertically (ie stem in a vertical position, the hand wheel at the top). The gate valve with bypass valve should open ......
With the rapid economic development of emerging countries such as China, the demand for large and medium-sized commercial trucks has risen rapidly, and the emerging countries' market has accounted for 80% of the global large and medium-sized trucks. Among them, China is the world’ ......
In the first half of 2011, the import of fasteners in Japan showed a slight increase. The import volume was 115,000 tons, a year-on-year increase of 13.38%, and the import volume was 34.70 billion yen, an increase of 13.0% over the same period of last year. Among them, the import volume o ......
GAC Hino used the Japanese Hino 700 heavy truck platform, which is different from other domestic heavy trucks. Although some domestic high-end heavy trucks are equipped with imported technology engines or large-displacement domestically produced engines, the entire heavy-duty truck platform is onl ......
According to statistics of Ningbo Customs, Ningbo Port exported 2.25 billion U.S. dollars of auto parts in the first three quarters, an increase of 33.5% over the same period of last year (the same below). In September, the export volume of auto parts at Ningbo Port was US$300 million, which ......
Project Name: Yichang Xiaoshi Tea Group Co., Ltd. Three Gorges Tea Culture Ecological Folk Custom Village Construction Project (December 2011-December 2013, RMB 50 million) Region: Hubei Progress Stage: Filing Construction Period: December 2011-December 2013 Major equipment: cranes, fire-fighting ......
1, the working principle of arc gear pump: The arc gear pump is a type of volumetric pump. It consists of two gears, a pump body and a front cover and a back cover. When the gear rotates, the volume of the space on the disengagement side of the gear increases from small to large, forming ......
1. Q: Why does the instrument display remain blank after it is turned on? Answer: Possible causes are: no voltage; no power cord connected; fuse blown; instrument damaged. 2. Q: Why is the measurement time too long? A: The closed mode that may be selected is not appropriate. Try replaci ......