Generally, urban natural gas pipelines are more than one hundred kilometers long. Although they are regularly patrolled and inspected, sometimes the pipelines need to pass through areas with complex conditions. The leakage of new pneumatic ball valves for natural gas gathering and transmission may cause serious fire accidents. Especially for pipelines near the city, it is particularly important to prevent the leakage of valves. Once the pipeline is put into operation, it is not allowed to stop operation within a few years, and it is not allowed to have a momentary interruption, let alone an overhaul period. Once the pipeline valves connected in series on the pipeline fail, the consequences are unimaginable. Therefore, the wearing parts of pipeline valves are required to have long service life and be safe and reliable.

How to apply pneumatic butterfly valve in chemical plant
The application environment of pneumatic butterfly valves is well known. Between the stop of rotary equipment with pipeline oscillation and the products with general demand, the connection between pipeline and response equipment often uses the quick release coupling of pneumatic butterfly valves, or sometimes several of them are used together! One is the receiving connection, the other is the flange connection, and then the connector connection. The commonly used small pneumatic butterfly valve thread is connected with the quick connector, and the commonly used large diameter flange pneumatic butterfly valve.
The pneumatic butterfly valve is resistant to rat bites and has good wear resistance to avoid internal line abrasion. The pneumatic butterfly valve is soft, repetitive and flexible. The pneumatic butterfly valve has outstanding flexibility, no blockage and rigidity. The pneumatic butterfly valve is light in weight and has the same caliber. The pneumatic butterfly valve has strong bending resistance, tensile strength and side pressure resistance. Pneumatic butterfly valve is corrosion resistant and high temperature resistant.
316 stainless steel 18K-12Ni-2.5Mo has excellent corrosion resistance, atmospheric corrosion resistance and high temperature strength due to the addition of Mucun, and can be used under severe conditions. Excellent work hardening function (non-magnetic).
304 stainless steel is a kind of general stainless steel material, which has better antirust function than 200 series stainless steel material. High temperature resistance is also very good, up to 1000~1200 degrees. 304 stainless steel has excellent corrosion resistance and corrosion resistance. The test results show that 304 stainless steel has strong corrosion resistance at nitric acid concentration, and its concentration is less than 65% at exuberant temperature. It also has excellent corrosion resistance to alkaline solutions and most organic and inorganic acids.