The ZMA/BM pneumatic diaphragm sleeve regulating valve adopts a balanced valve plug structure, which has good stability, is not prone to vibration, low noise, and low temperature sensitivity; The allowable pressure difference is relatively large. Suitable for situations with high flow rate, high differential pressure, and less stringent leakage requirements. The low-temperature type adopts a long neck upper valve cover to protect the packing at higher temperatures and control low-temperature gases and liquids. The sleeve regulating valve cut-off valve adopts a soft or hard sealing structure, especially used in situations that require both regulating and cut-off requirements.
Pneumatic regulating valve ZMA/BP type pneumatic thin film single seat regulating valve single seat plunger valve core. The valve core adopts top and bottom guidance, suitable for situations with strict requirements for external leakage, low pressure difference before and after the valve, and certain viscosity and synthetic fiber like media. Especially for small diameter single seat regulating valves, flanges can be made into pipe threads and directly connected to pipelines.
1. Design and Manufacturing: GB12237-89 API608、API 6D、JPI 7S-48、BS5351、DIN3357.
2. Flange size: JB/T74-90 (JB74-90) GB9112～9131、HGJ44～76、SH3406、ANSI B16.5、JIS B2212～2214、NF E29-211、DIN2543.
3. Structural length: GB12221-89 ANSI B16.10、JIS B2002、NF E29-305、DIN3202.
4. Inspection main test: JB/T 9092, API 598.
