High technology of pneumatic valve

　. Oil, natural gas wellhead with pneumatic valve oil, natural gas wellhead with pneumatic valve is mainly for the APIA standard single or double ram disc, with diversion hole or without diversion hole of forged steel brake parallel pneumatic valve, pneumatic valve, throttle Angle type pneumatic valve, pneumatic valve parallel type adjustment for oilfield, a straight-through check pneumatic valve, water injection special polymer parallel brake pneumatic valve, pneumatic clamp parallel gate valve, pilot operated safety pneumatic pneumatic valve and check valve.
oil, natural gas wellhead by the level of nominal pressure of the pneumatic valve for APIpsi, psi, psi, psi, psi, psi. Nominal diameter is DN ~ mm ( /在~; Temperature rating for K ( - ~℃、L( - ~℃、P( - ~℃、R( At room temperature, S ( - ~℃、T( - ~℃、U( - ~℃、V( ~ ℃; Material requirements to AA, BB, CC, DD, EE, FF, HH; Material performance requirements by K, K, K, K; Product technical requirements according to PSL ( Product specification level, PSL ( Product specification level, PSL ( Product specification level, PSL ( Product specification level.
. Oil and gas long distance pipeline with pneumatic valve oil, natural gas long distance pipeline with pneumatic valve is mainly up to the standard of American APID single or double ram disc, a diversion hole or without diversion hole plate brake pneumatic valve; Three postures, forged steel or cast steel jacket type or all welded type pneumatic fixed ball ball valve; Pneumatic valve oil seal or pressure balance plug; Swing or butterfly check valve pneumatic valve, pneumatic valve, ball check Pigging pneumatic valve, etc.
these pneumatic valve nominal pressure level for CL ( PN。 MPa、CL( PN。 MPa、CL( PN。 MPa、CL( PN。 MPa、CL( PN。 MPa、CL( PN。 MPa、CL( PN。 MPa； Nominal diameter is DN ~ mm ( 在~; Fire test technical requirements according to ISO; Pneumatic valve pressure test according to ISO.
. Nuclear power with the pneumatic valve nuclear power than regular large coal-fired power plants with pneumatic valve with pneumatic valve its technical characteristics and requirements. Pneumatic valve, pneumatic valve class tend to have gate as pneumatic pneumatic valve, butterfly valve, check valve, pneumatic valve, main steam safety isolation pneumatic valve, pneumatic ball valves, pneumatic diaphragm valve, pneumatic vacuum pneumatic valve and control valve, etc. ; Representative highest technical parameters of pneumatic valves are as follows: the largest diameter DNmm ( Nuclear grade the pneumatic butterfly valve, DNmm ( Nuclear grade of main steam isolation pneumatic valve, DNmm ( The main circuit of nuclear grade brake pneumatic valve; The highest pressure: class about; The highest temperature: about ℃; Medium: coolant ( Boride water, etc. Nuclear grade pneumatic valve products required: usually by nuclear industry standard EJ, American ASME, IEEE standards and French PWR RCC - mechanical equipment design and construction rules M, etc.