Butterfly valve type code type valve diaphragm valve (foot valve) shut-off valve throttle plunger valve sewage valve ball cock valve gate trap code ADGHJLPQSUXYZ vacuum: such as vacuum valve, vacuum flapper valve, vacuum The pneumatic valve, pneumatic vacuum valve. Its role is the valve in the vacuum system, to change the direction of airflow stainless steel valves to regulate air flow size Shanghai and Shanghai Valve Manufacturing Co., Ltd., or turn off the vacuum system components pipeline is called the vacuum valve. Special purpose: such as pigging valve, vent valve, drain valve, exhaust valve, filters. Exhaust valve is an essential auxiliary piping system components, widely used in boilers, air conditioning, oil and gas, water supply and drainage canal. Often installed in the commanding heights or elbow, etc., exclude excess gas pipeline to improve the efficiency of management of road use and reduce energy consumption. Shanghai and Shanghai Valve Manufacturing Co., Ltd., the Hong Kong valves (online consultation), the valve provided by the Dongguan Science and Technology Co., Ltd., the Hong Kong valve. Valve Co., Ltd., Dongguan Ming Kong (www.gdmgfm.com) is Dongguan, butterfly leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Ming Kong valve leadership with the staff warmly welcome all inquiries negotiations to create a better valve out of Hong Kong in the future.