The commonly used pneumatic butterfly valves are wafer type pneumatic butterfly valve and flange type pneumatic butterfly valve. Wafer type pneumatic butterfly valve can only be connected between two pipe flanges with the help of stud bolts. The flange type pneumatic butterfly valve itself has flanges, which can directly connect the flanges on both ends of the valve to the pipe flanges with bolts.

Problems faced by pneumatic butterfly valve company
First, the cost of consumption has risen too fast, the raw materials have generally risen, the cost of labor has risen too fast, the problem of difficult employment and labor shortage is very prominent, and the wages of workers in the Yangtze River Delta, Pearl River Delta and other coastal areas have generally risen. The above two "costs rise too fast" squeeze the profit space of enterprises. 25mm double button pneumatic butterfly valve
Second, enterprises still bear heavy burdens, and the charges for enterprises are still too high, and illegal charges still exist. For example, some central authorities use arbitrary charges to ease financial difficulties, some departments use their rights to collect fees to seek departmental interests, and some grass-roots law enforcement personnel use illegal charges to seek personal interests.
Third, since last year, in order to stabilize the achievements of the response to the financial crisis, China has implemented a prudent monetary policy, and has improved the bank reserve ratio for 12 consecutive times. The reduction of credit scope has further increased the difficulty of financing for small and medium-sized pneumatic butterfly valve enterprises, especially small and micro pneumatic butterfly valve enterprises. A large number of small and medium-sized enterprises are in urgent need of private lending, The borrowing rate has reached 50% - 100%, and the financing cost remains high. In 2010, China's current financial system was difficult to deal with the "bottleneck" problem of small enterprises with limited financing channels, small scope and high cost.
Fourth, most small and medium-sized enterprises are at the low end of the traditional industrial value chain, with weak technological innovation ability, extensive consumption and operation, low level of deployment, shortage of professional talents, lack of independent knowledge, property rights and brands, mainly relying on "low cost, low price and low profit" to participate in competition, and it is difficult to digest the factors of rising operating costs in a timely manner, Conform to the ideal request of changing the mode of development and adjusting and optimizing the economic structure.