Forged steel pneumatic valve product selection guidelines and matters needing attention

, the application before the first understand pneumatic valve working pressure, temperature, the application of medium, etc.
working conditions, determine the nominal size of the match the pipe road: DN and NPS
, first of all to understand the kind of project, what is the purpose of related standards, specifications, pressure, temperature, allowable approval can choose conform pneumatic valve products
, and the choice of pneumatic valve operating way: manual, pneumatic, hydraulic, electric, worm gear and worm drive, drive system, such as
, select the use of pneumatic valve forms: external regulation, secure, switches, etc.
, selection of pneumatic valve and pipeline road connection mode: internal thread, external thread ( Thread type, welding type, flange, such as wafer
the type of pneumatic valves, forged steel
pneumatic valves, forged steel sealing performance requirements, sealing level or seal leakage quantity
, and the choice of pneumatic valve shell and internal parts material: stainless steel, carbon steel, alloy steel, ductile iron, gray cast iron, etc.
, choosing the length of the structure of pneumatic valve, pneumatic valve height, shape, size, flow resistance, discharge capacity, flow characteristic, protection grade, explosion-proof performance parameters, such as
, selection of pneumatic valve installation position and posture
, and the choice of pneumatic valve packing, transportation and other requirements
note: forged steel pneumatic valve
and excess fat injection, wasteful
and grease injection quantity is little greasing, sealing surface due to the lack of lubricant and accelerate wear

, regular maintenance and maintenance forged steel pneumatic valve when the choice, it's simple basic specifications and standards we are must understand, so that we can choose better pneumatic valve forging steel products. It also some easy to ignore, of course, we also must prevent, so as to maintain its efficiency.