304不銹鋼法蘭截止閥J41W-16P主要規(guī)范標(biāo)準(zhǔn)
采用標(biāo)準(zhǔn)
設(shè)計制造:鑄鋼截止閥按照BS 1873、ASME B16.34;
◎鍛鋼截止閥按照API602
◎檢驗和試驗:API 598
◎ 法蘭連接:ASME B16.5
◎?qū)付耍?span style="font-family:'times new roman';">ASME B16.25
◎承插焊端:ASME B16.11
◎結(jié)構(gòu)長度:ASME B16.10
◎溫壓等級:ASME B16.34
Standards
Design and Manufacture:Cast steel globe valve to BS 1873
And ASME B16.34
◎Forged steel globe valve to API 602
◎Inspection and Test:API 598
◎End flange dimension:ASME B16.5
◎BW end dimension:ASMEB16.25
◎Socket-weld dimension:ASME B16.11
◎Face to face and end to end:ASME B16.10
◎Pressure-temperature ratings:ASME B16.34
閥蓋墊片形式
◎ Class150~Class300截止閥采用不銹鋼石墨纏繞墊片;Class600截止閥可用不銹鋼石墨纏繞墊片也可采用金屬環(huán)墊片;Class900截止閥可采用金屬環(huán)墊片; Class900閘閥可采用金屬環(huán)墊片 Class1500~Class2500截止閥采用自壓密封金屬環(huán)。
Gasket of cover flange
◎Stainless steel+flexible graphite wounded gasket is used for class150 and class300 globe valve Stainless steel flexible graphite wounded gasket is used for class600,and ring joint gasket is also optional for class600。Ring joint gasket is used for class900 globe valve. pressurized seal design is used for class1500~class2500 globe valve
截止閥結(jié)構(gòu)特點
◎栓接閥蓋,明桿支架和升降式閥桿金屬密封面
■The Features of Globe Valve
◎Bolted bonnet;Outside screw and yoke;Rising stems;Metallic seating surfaces.
■閥桿設(shè)計
◎采用整體鍛造工藝制成,按照標(biāo)準(zhǔn)要求確定最小直徑。
■Stem Design
◎The stem is of integral design. The minimum diameter of the stem shall per the standard requirement.
操作形式
◎一般情況下采用手輪、沖擊手輪或者齒輪傳動方式,可根據(jù)用戶需要采用鏈輪傳動或者電裝驅(qū)動。
Actuation
Hand wheel impact hand wheel gear box is usually used for globe valve actuation Chain wheel and electric actuator can be also sedfor globe valve actuation if being by the customers。
閥體和閥蓋連接形式
Class150-class900采用栓接閥蓋; class1500-class2500采用自壓密封式閥蓋。
Body and Bonnet Connection The body and bonnet of class150-class900 check valve are usually with studs and nuts。
the body and bonnet of class1500-class2500 check valves are usually of pressurized seal design
填料密封
通常采用成型柔性石墨作為填料材料,可根據(jù)用戶需求提供PTFE或者復(fù)合填料材料。填料與填料函接的表面粗糙度為3.2μm,可以保證閥桿與填料接觸面接合緊密但是旋轉(zhuǎn)自如,經(jīng)過精密的機械加工的閥桿密封面粗糙度0.8μm可以保證閥桿可靠的密封。
Packing Seal
Molded flexible graphite is used for packing material.PTFE or combined packing material can be also used if being requested by the customer the internal surface of the stuffing box.Of which area is contacted with the packing.Is of excellent finish(Ra3.2μm)the stem surface,contacting with the packing should be rolled and pressed after being precisely machined,so as to reach to the high finish and com-pertness(Ra0.8μm)and ensure the reliable tightness of the stem area.
彈簧加載填料沖擊系統(tǒng)
如果客戶要求,可采用彈簧加載填料沖擊系統(tǒng)提高填料密封的持久性和可靠性。
Belleville Spring Loaded Packing Impacting System
If being requested by the customer,the Belleville spring loaded packing impacting can be adopted for enhancing the durability and reliability of the packing seal.
廈門雙特閥門廠有限公司主要專業(yè)生產(chǎn)各類鑄鋼或不銹鋼閥門,有著20多年的閥門制造經(jīng)驗,獲得國家發(fā)明專利、國際專利17項,主持和參與編寫國家標(biāo)準(zhǔn)31項。
公司現(xiàn)擁有的生產(chǎn)資質(zhì):挪威船級社(DNV)、ISO 9001-2008質(zhì)量體系認證、美國石油學(xué)會API6D認證、防火試驗API607認證、歐盟CE/PED認證、國內(nèi)特種設(shè)備TS許可證。
產(chǎn)品主要出口美國、歐洲、中東、非洲、新加坡等國家與地區(qū),同時也是中石油和中石化定點供應(yīng)成員。
公司主要經(jīng)營產(chǎn)品:不銹鋼系列的蝶閥、調(diào)節(jié)閥、防盜閥、截止閥、球閥、止回閥