Introduction of zmap-d pneumatic diaphragm low temperature regulating valve

Pneumatic diaphragm low temperature regulating valve is a deformed product of single and double seat regulating valve. It is different from the normal temperature control valve in that it uses a long neck upper bonnet to make the packing work at normal temperature. It is applicable to the regulation of medium (such as liquid oxygen, liquid nitrogen, etc.) under low temperature and strong state of -60 ~ -250 ℃. In order to ensure the regulation accuracy, zmap pneumatic low temperature regulating valve must be equipped with a valve positioner.

Pneumatic low temperature regulating valve is composed of pneumatic diaphragm actuator and low temperature resistant single and double seat valve. The signal pressure from the regulator is input into the air chamber of the pneumatic diaphragm actuator to generate thrust, and the valve core is driven by the connecting rod. The change of the position of the valve core changes the flow cross-sectional area of the valve. The zmap pneumatic low temperature regulating valve realizes the regulation of the medium flow.