Industrial pneumatic valve is introduced

the action points: action, automatic pneumatic valves with pneumatic valve.
opening and closing action - Cut off or communication pipe fluid flow;
adjust action - Adjust the flow rate, flow velocity;
throttling action - After making the fluid through the pneumatic valve produces a lot of pressure drop;
other role - 一个。 Automatic opening and closing b. To maintain a certain pressure c. Vapor barrier drainage. Main parameters


PN nominal pressure ( Allow fluid to the biggest pressure)
DN nominal diameter TN temperature range ( Allow fluid temperature range),

before using the check projects include:
pneumatic valve inside and outside surface defects such as sand holes, cracks;
pneumatic valve core it fits the pneumatic valve seat, pneumatic seat and aerodynamic body joint is strong. Sealing surface with and without defects;
thread is damaged, corrosion; Pneumatic valve rod connected to the pneumatic valve core is flexible and reliable, pneumatic valve stem is bent.
whether the packing and gaskets aging damage;
the pneumatic valves open and flexible.
industrial pneumatic valve types can be divided into the following kinds:
according to utility cent: truncation pneumatic valve, regulating valve, pneumatic valve, check valve pneumatic valve, pneumatic valve peace;