The ceaseless development of market of Chinese valve product as science and technology, also be in to hi-tech content, tall parameter, be able to bear or endure strong corrode, longevity destiny direction develops. The analysis according to demand of the analysis to technology of domestic and international valve and market of domestic and international valve, excogitate in last few years each industry reachs valve industry with industrial valve trend of development of new and high technology and investment direction, following:
Wellhead device of 1. oil, natural gas uses a powerful person
Oil, natural gas wellhead device basically is the odd flashboard that accords with American API6A standard or double flashboard, forged steel parallel that have diversion opening or does not have diversion aperture with a powerful person throttle of pattern of formula switch a powerful person, slop a powerful person, part, oil field is special and parallel.
Wellhead device of oil, natural gas uses the nominal pressure class of valve to be API2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi; Nominal connects diameter to be DN46~228mm(113/16in~9in) ; Temperature grade is K(-60~182 ℃ ) , L(-42~182 ℃ ) , P(-29~182 ℃ ) , R(room temperature) , S(-18~166 ℃ ) , T(-18~182 ℃ ) , U(-18~121 ℃ ) , V(2~121 ℃ ) ; Material asks to be AA, BB, CC, DD, EE, FF, HH; Material function asks to press 36K, 45K, 60K, 75K; Product technology asks to press PSL1(product standard standard of product of 2) of grade of standard of product of grade 1) , PSL2(, PSL3(standard of product of grade 3) , PSL4(grade 4) .
2. oil, natural gas is long be defeated by cop to use a powerful person
Oil, natural gas is long be defeated by cop to basically be the odd flashboard that accords with American API6D standard or double flashboard, flat brake that have diversion opening or does not have diversion aperture with a powerful person a powerful person; Forged steel or cast steel type of 3 form of characters or letters, jacket or solder completely type secures ball ball valve; Oily sealed or a powerful person of faucet of pressure balance type; Come back open the type or butterfly type check valve, check valve that connect a ball; Clear canal a powerful person.
The nominal pressure class of these valve is CL150(PN2.0MPa) , CL300(PN5.0MPa) , CL400(PN6.4MPa) , CL600(PN10.0MPa) , CL900(PN15.0MPa) , CL1500(PN25.0MPa) , CL2500(PN42.0MPa) ; Nominal connects diameter to be DN50~1500mm(2in~60in) ; Fireproof experiment technology asks to press ISO10497; The compression test of valve presses ISO5208.
3. nucleus report uses a powerful person
The large fire power station that nuclear report compares convention with valve uses valve its technology characteristic and requirement want tall. A powerful person kind have brake a powerful person, shut-off valve, check valve, butterfly a powerful person, relief valve commonly, advocate vapour segregation a powerful person, ball valve, diaphragm valve, pressure-relief valve and control a powerful person; Have the highest technology parameter of representative valve to be: Nucleus of DN1200mm(of the largest requirements the butterfly a powerful person of 3 class) , DN800mm(nucleus of 2 class advocate vapour isolates a powerful person) , DN350mm(nucleus of 1 class advocate) of loop brake a powerful person; Highest pressure: Make an appointment with 1500 pounds class; Highest temperature: Make an appointment with 350 ℃ ; Medium: Refrigerant (boron turns water) etc. Product of valve of manufacturing nucleus class sets a requirement: By the nucleus normally standard of ASME of occupation standard EJ, United States, IEEE and France press water to pile nuclear island machinery to equipment is designed and build regular RCC-M to wait.
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