Pneumatic sterile shut-off valve

application

This valve is a sterile diaphragm type pneumatic seat valve with a hygienic and flexible design, based on a mature single seat valve design platform. The few and simple moving parts make the valve very reliable and reduce its maintenance costs. Used to cut or open pipelines leading to storage tanks. Widely used in industries such as high hygiene dairy products, beverages, pharmaceuticals, etc.

technical parameter

◆ Specification: 0.75"~ 2" DN20~DN50

Connection method: welding, clamp

Maximum working pressure: ≤ 6bar

◆ Supply compressed air: 4-8bar

◆ Compressed air connection: Air pipe connector G1/8"

Working temperature: -10 ℃ to 140 ℃

◆ Part in contact with materials: SS304/SS316L

◆ Internal surface contact product: Ra ≤ 0.4 μ M

◆ Sealing element: polytetrafluoroethylene (PTFE)

operational principle

The valve uses compressed air to push the piston inside the pneumatic actuator downwards, while also pushing the valve stem downwards, pulling the diaphragm to open the valve port, which means the valve opens. When the air compression is lower than the spring force or there is no gas compression, the piston is pushed upwards by the spring and drives the valve stem to move upwards, pressing against the diaphragm to close the valve port.