法蘭式截止閥的啟閉件是圓柱形的閥瓣,密封面呈平面或錐面,閥瓣沿流體的中心線作直線運(yùn)動(dòng)。國(guó)標(biāo)截止閥只適用于全開(kāi)和全關(guān),一般不用來(lái)調(diào)節(jié)流量,定做時(shí)允許作調(diào)節(jié)和節(jié)流。公稱(chēng)壓力1.6MPa-16.0MPa,工作溫度-29~550℃的石油、化工、制藥、化肥、電力行業(yè)等各種工況的管路上,切斷或接通管路介質(zhì)。驅(qū)動(dòng)方式有手動(dòng)、齒輪傳動(dòng)、電動(dòng)、氣動(dòng)等。
◆產(chǎn)品特點(diǎn)
1、結(jié)構(gòu)簡(jiǎn)單,制造和維修比較方便
2、工作行程小,啟閉時(shí)間短
3、密封性好,密封面間磨擦力小,壽命較長(zhǎng)
◆執(zhí)行標(biāo)準(zhǔn)
設(shè)計(jì)規(guī)范:GB/T 12235
結(jié)構(gòu)長(zhǎng)度:GB/T 12221
法蘭連接:JB/T 79
試驗(yàn)與檢驗(yàn):JB/T 9002
產(chǎn)品標(biāo)識(shí):GB/T 12220
供貨規(guī)范:JB/T 7928
◆性能參數(shù)
型號(hào)J41H-16C~160CJ41Y-16C~160CJ41W-16P~160P
工作壓力(MPa)1.6~16.0
適用溫度(℃)≤425≤150
適用介質(zhì)水、蒸汽、油品弱腐蝕性介質(zhì)
材料閥體、閥蓋碳素鋼鉻鎳鈦不銹鋼
閥桿鉻不銹鋼鉻鎳鈦不銹鋼
密封面堆焊鐵基合金堆焊硬基合金本體材料
填料石棉石墨、柔性石墨、聚四氟乙烯
壓力試驗(yàn)MPa
公稱(chēng)壓力1.62.54.06.410.016.0
強(qiáng)度試驗(yàn)2.43.86.09.615.024.0
水密封試驗(yàn)1.82.84.47.411.018.0
上密封試驗(yàn)1.82.84.47.0411.018.0
氣密封試驗(yàn)0.4-0.7
主要零件材料及性能
體蓋扳閥桿密封面墊片(環(huán))填料工作溫度℃適用介質(zhì)
WCB2Cr1313Cr
STL
本體材料
尼龍?jiān)鰪?qiáng)柔性石墨
1Crl3/柔性石墨
08軟鋼
0Cr18Ni9Ti
OCr18Ni12Mo2Ti柔性石墨
增強(qiáng)柔性石墨
SFB-260
SFP-260≤425
水、蒸汽、油品
WC138CrMoAI
25Cr2MoV≤450
WC6≤540
WC9≤570
ZGCr5Mo≤540
ZG1Cr18Ni9Ti1Cr18Ni9Ti≤200硝酸類(lèi)
ZGCr18Ni12Mo2Ti1C18Ni12Mo2Ti≤200醋酸類(lèi)
PN l.6MPa規(guī)格主要尺寸
1.6MPaDNLDD1D2bn-ΦdHD0
凸面法蘭
RF
J41H
J41Y
J41W
J41F
J41N
16C
16P
16R
16I10130906040144-Φ14198120
15130956545144-Φ14218120
201501057555144-Φ14258140
251601158565144-Φ14275140
3218013510078164-Φ18280160
4020014511085164-Φ18330180
50230160125100164-Φ18350200
65290180145120184-Φ18370280
80310195160135208-Φ18400280
100350215180155208-Φ18415320
125400245210185228-Φ18460360
150480280240210248-Φ23510450
2006003352952652612-Φ23710500
2506504053353203012-Φ25786550
3007504604103753012-Φ25925600
2.5MPa規(guī)格主要尺寸
2.5MPaDNLDD1D2bn-ΦdHD0
10130906040164-Φ14198120
15130956545164-Φ14218120
201501057555164-Φ14258140
251601158565164-Φ14275140
3218013510078184-Φ18280160
4020014511085184-Φ18330180
50230160125100204-Φ18350200
65290180145125228-Φ18400280
80310195160135228-Φ18355280
100350230190160248-Φ23415320
125400270220188288-Φ25460360
150480300250218308-Φ25510450
2006003603102783412-Φ25710500
2506224253703323612-Φ30786550
3006984854303904016-Φ30925600
4.0MPa規(guī)格主要尺寸
4.0MPaDNLDD1D2D6bn-ΦdHD0
凹凸法蘭
MFM
J41H
J41Y
J41W
J41N
40
40P
40R
40I1013090604135144-Φ14198120
1513095654540164-Φ14233120
20150105755551164-Φ14295140
25160115856558164-Φ14285160
321801351007866184-Φ18302160
402001451108576184-Φ18355200
5023016012510088204-Φ18373200
65290180145120110228-Φ18408280
80310195160135121228-Φ18436280
100350230190160150248-Φ23480320
1254001270220188176288-Φ25588360
150480300250218204308-Φ25611400
2006003753202822603812-Φ30720400
6.4MPa規(guī)格主要尺寸
6.4MPa15170105755540184-14Φ195400
凹凸法蘭
MFM
J41H
J41Y
J41W
J41N
64
64P
64R
64I20190125906851204-Φ18228160
252101351007858224-Φ18275180
322301501108266244-Φ23325200
402601651259576244-Φ23360240
5030017513510588264-Φ23410280
65340200160130110288-Φ23450320
80380210170140121308-Φ23485360
100430250200168150328-Φ25537400
125500295240202176368-Φ30631400
150550340280240204388-Φ34646450
2006504053453002604412-Φ34813500