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上海祝茂閥門生產(chǎn)以下幾種壓力和材質(zhì)：
不銹鋼電動(dòng)截止閥J941W-16、不銹鋼電動(dòng)截止閥J941W-16Q、不銹鋼電動(dòng)截止閥J941W-16C、不銹鋼電動(dòng)截止閥J941W-16P、不銹鋼電動(dòng)截止閥J941W-16R
不銹鋼電動(dòng)截止閥J941W-25、不銹鋼電動(dòng)截止閥J941W-25Q、不銹鋼電動(dòng)截止閥J941W-25C、不銹鋼電動(dòng)截止閥J941W-25P、不銹鋼電動(dòng)截止閥J941W-25R
不銹鋼電動(dòng)截止閥J941W-40、不銹鋼電動(dòng)截止閥J941W-40Q、不銹鋼電動(dòng)截止閥J941W-40C、不銹鋼電動(dòng)截止閥J941W-40P、不銹鋼電動(dòng)截止閥J941W-40R
其壓力有以下口徑：J941W-40P/R DN15截止閥、J941W-40P/R DN20截止閥、J941W-40P/R DN25截止閥、J941W-40P/RDN32截止閥、J941W-40P/R DN40截止閥、J941W-40P/R DN50截止閥、J941W-40P/R DN65截止閥、J941W-40P/RDN80截止閥、J941W-40P/R DN100截止閥、J941W-40P/R DN125截止閥、J941W-40P/R DN150截止閥、J941W-40P/R DN200截止閥、J941W-40P/R DN250截止閥、J941W-40P/R DN300截止閥、J941W-40P/R DN350截止閥、J941W-40P/R DN400截止閥、J941W-40P/R DN450截止閥、J941W-40P/R DN500截止閥、J941W-40P/R DN600截止閥、J941W-40P/R DN700截止閥、J941W-40P/R DN800截止閥；
其壓力有以下口徑：J941W-25P/R DN15截止閥、J941W-25P/R DN20截止閥、J941W-25P/R DN25截止閥、J941W-25P/RDN32截止閥、J941W-25P/R DN40截止閥、J941W-25P/R DN50截止閥、J941W-25P/R DN65截止閥、J941W-25P/RDN80截止閥、J941W-25P/R DN100截止閥、J941W-25P/R DN125截止閥、J941W-25P/R DN150截止閥、J941W-25P/R DN200截止閥、J941W-25P/R DN250截止閥、J941W-25P/R DN300截止閥、J941W-25P/R DN350截止閥、J941W-25P/R DN400截止閥、J941W-25P/R DN450截止閥、J941W-25P/R DN500截止閥、J941W-25P/R DN600截止閥、J941W-25P/R DN700截止閥、J941W-25P/R DN800截止閥；
其壓力有以下口徑：J941W-16P/R DN15截止閥、J941W-16P/R DN20截止閥、J941W-16P/R DN25截止閥、J941W-16P/RDN32截止閥、J941W-16P/R DN40截止閥、J941W-16P/R DN50截止閥、J941W-16P/R DN65截止閥、J941W-16P/RDN80截止閥、J941W-16P/R DN100截止閥、J941W-16P/R DN125截止閥、J941W-16P/R DN150截止閥、J941W-16P/R DN200截止閥、J941W-16P/R DN250截止閥、J941W-16P/R DN300截止閥、J941W-16P/R DN350截止閥、J941W-16P/R DN400截止閥、J941W-16P/R DN450截止閥、J941W-16P/R DN500截止閥、J941W-16P/R DN600截止閥、J941W-16P/R DN700截止閥、J941W-16P/R DN800截止閥；
祝茂閥門還可生產(chǎn)以下同類產(chǎn)品：
J41美標(biāo)截止閥、截止型排污閥、J741液動(dòng)截止閥、J11絲口截止閥、WJ41波紋管截止閥、J741液壓截止閥、J41長(zhǎng)桿截止閥、青銅截止閥、J941電動(dòng)截止閥、J41杠桿式截止閥、J61承插截止閥、J45直通截止閥、J41暗桿截止閥、黃銅截止閥、日標(biāo)截止閥
衛(wèi)生級(jí)截止閥、J41國標(biāo)截止閥、平衡截止閥、J41F46襯氟截止閥、J45直流截止閥、DS/J41水封截止閥、GJM1壓力表截止閥、J41法蘭截止閥、J41液化氣截止閥、UJ41柱塞截止閥、J41節(jié)能截止閥、陶瓷截止閥、排液截止閥、SJ41低溫截止閥、J41高壓截止閥
聚丙烯截止閥、UJ41無泄漏截止閥、J41F46防腐蝕截止閥、NKJ真空截止閥、J13針型截止閥、J641氣動(dòng)截止閥、截止換向閥、J641氣動(dòng)截止閥、J41鍛鋼截止閥
J41不銹鋼截止閥、YJ41氧氣截止閥、J41空調(diào)截止閥、J61電站截止閥、J61焊接截止閥、自密封截止閥、BJ41保溫截止閥、JJY1卡套截止閥、J41鑄鐵截止閥
J41B氨截止閥、J41J襯里截止閥、J41高溫截止閥、J11螺紋截止閥、J11內(nèi)螺紋截止閥、JJY1管路截止閥、J41德標(biāo)截止閥、自緊截止閥、J541齒輪截止閥、J21外螺紋截止閥、J41手動(dòng)截止閥、J11絲扣截止閥、J44角式截止閥、J44直角截止閥、J24直角截止閥
J41美標(biāo)截止閥、J741液動(dòng)截止閥、J11絲口截止閥、WJ波紋管截止閥、J741液壓截止閥、J41長(zhǎng)桿截止閥、青銅截止閥、J941電動(dòng)截止閥、J41杠桿式截止閥、J61承插截止閥、J45直通截止閥、J41暗桿截止閥、黃銅截止閥、J41日標(biāo)截止閥、衛(wèi)生級(jí)截止閥
J41國標(biāo)截止閥、平衡截止閥、J41襯氟截止閥、J45直流截止閥、DS/J41水封截止閥、JJM1壓力表截止閥、J41法蘭截止閥、J41液化氣截止閥、UJ41柱塞截止閥
節(jié)能截止閥、陶瓷截止閥、排液截止閥、DJ41低溫截止閥、J41高壓截止閥、聚丙烯截止閥、UJ41無泄漏截止閥、J41防腐蝕截止閥、NKJ真空截止閥、J11針型截止閥、J41鍛鋼截止閥、J41不銹鋼截止閥、YJ41氧氣截止閥、J41空調(diào)截止閥、J61電站截止閥
J61焊接截止閥、J61自密封截止閥、BJ41保溫截止閥、JJY1卡套截止閥、J41鑄鐵截止閥、J41B氨截止閥、J41J襯里截止閥、J41高溫截止閥、J21螺紋截止閥、J11內(nèi)螺紋截止閥、JJY1管路截止閥、德標(biāo)截止閥、J61自緊截止閥、J541齒輪截止閥、J21外螺紋截止閥、J41手動(dòng)截止閥、J22絲扣截止閥、J44角式截止閥、J61焊接式閥蓋、J61電站截止閥、J41國標(biāo)截止閥、J41鍛鋼截止閥、J41鍛鋼截止閥、DN10 ～150mm真空隔離截止閥、BJ45 型保溫截止閥、J44H/Y 角式截止閥 / 節(jié)流閥、J641H-16/25/40/64 氣動(dòng)截止閥、J41H/W 法蘭式截止閥、J41F46-16 截止閥、JL41HY 型角式高壓截止閥
J11H 型內(nèi)螺紋截止閥、JL41HY 型鍛鋼截止閥、J41H 型法蘭截止閥
API 截止閥、J41F46-16 截止閥、J45F46-16 直流截止閥
J41H 型法蘭截止閥、JL41HY 型角式高壓截止閥、WJ41H 型精鑄波紋管截止閥
J41B 型氨截止閘、J41H 型鋼制法蘭截止閥、J941H 型電動(dòng)截止閥
高溫高壓 Y 型截止閥、J41N 型液化氣截止閥、J41HD-16C倒密封截止閥
J41H-16 鑄鐵截止閥、J45F46-16 直流截止閥、GB-200WOG 不銹鋼截止閥（B型）
法蘭連接鋼制 API 美標(biāo)截止閥、J941 法蘭鑄鋼截止閥、UJ41H 柱塞截止閥
J44H 角式截止閥、J41-16 截止閥、JHT6B6Y 油田專用閥
J966Y 電動(dòng)平衡截止閥、J66Y 平衡式截止閥、JT68Y 多級(jí)平衡調(diào)節(jié)閥
THJ86Y 油田專用閥、J41Y-150LbJ41H-150Lb美標(biāo)截止閥、J41H-150LbJ41Y-150Lb美標(biāo)截止閥
QJ41M-16/25 截止閥、JY41W-16/25/40 銅氧氣 截止閥、J41Y-16/25/40/64/100 截止閥
J41H.T-10 16 25 40 截 止 閥、J41H J941H 截止閥、150-1500(Lb)Y 型截止閥
J11H(Y) J61H(Y) 鍛鋼截止閥、J11H-16/25/40C螺紋連接型截止閥、J61H-16/25/40C焊接型截止閥
J41H-16/25/40C法蘭連接型截止閥、J41F-10/16 襯氟式型截止閥、J41H/W 法蘭式截止閥
WJ41H-16 波紋管截止閥、J41H-300LBJ41H-300LB截止閥、YJ41Y-40 截止閥
J41H/W/Y 截止閥、J41H 型新型結(jié)構(gòu)液化氣截止閥、J961Y 電站截止閥
API 美標(biāo)法蘭截止閥、J21W-160/320 截止閥、J21H-25/40/64/100/160/320 截止閥
J66H/Y 截止閥、J41H-150LB美標(biāo)截止閥、JLH 型三合一 截止閥
J41W-150LB美標(biāo) 截止閥、J41B 氨用截止閥、WJ41H/W 波紋管截止閥
J45H/W 法蘭直流式截止閥、AJ41Y 美標(biāo)法蘭截止閥、J961Y 國標(biāo)電站截止閥
J965Y 型截止閥、J65Y-200-320III高溫高壓直流截止閥、J65Y-200-320III高溫高壓直流截止閥、J41W-16 不銹鋼截止閥、J41H-40 J41B-40 截止閥、JN41F-16C/25C/40C軟密封截止閥、J11X-16T 黃銅截止閥 ( 熱鍛 )、J41FS 直通式襯里截止閥、J11W 絲口截止閥
J41N液化氣專用截止閥、J41H-150Lb美標(biāo)截止閥、J11X-16T 黃銅截止閥 ( 熱鍛 )
J41N液化氣專用截止閥、J41 T/W/H/F-16 型截止閥、JY 4146W-40TP 氧氣截止閥
WJ21H 外螺紋波紋管截止閥、J41FS46 襯聚全氟乙炳烯截止閥、J61 承插焊截止閥
J94 角式卡套截止閥、YSF 截止閥、J29 壓力計(jì)截止閥
DJ61F-40P 低溫截止閥、J11T/X-16 內(nèi)螺紋截止閥、J24X-6T 黃銅角式截止閥
J41W/J41X-16T 黃銅水控式截止閥、QJ41M-16/25 截止閥、JY41W-16/25/40 銅氧氣 截止閥
J41Y-16/25/40/64/100 截止閥、J641H-16/25/40/64 氣動(dòng)截止閥、J41Y-150Lb美標(biāo)截止閥
YJ43H/Y 鍛鋼 Y 型截止閥、WJ/Z41H/Y 鍛鋼波紋管閥門、法蘭連接 ANSI 鑄鋼截止閥
DN10 ～200mm法蘭連接鋼制截止閥、JLH41H/Y 截止/節(jié)流/止回多功能閥、WJ41W 國標(biāo)波紋管截止閥
GFYP4Y 型料漿閥、JL47H/Y 平衡角式截止 / 節(jié)流閥、DN10 ～150mm水封截止閥
J/L11W 手動(dòng)截止閥、J41W/Y 不銹鋼法蘭截 止閥、
截止閥的啟閉件是塞形的閥瓣，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)。閥桿的運(yùn)動(dòng)形式，有升降桿式（閥桿升降，手輪不升降），也有升降旋轉(zhuǎn)桿式（手輪與閥桿一起旋轉(zhuǎn)升降，螺母設(shè)在閥體上）。截止閥只適用于全開和全關(guān)，不允許作調(diào)節(jié)和節(jié)流。
截止閥屬于強(qiáng)制密封式閥門，所以在閥門關(guān)閉時(shí)，必須向閥瓣施加壓力，以強(qiáng)制密封面不泄漏。當(dāng)介質(zhì)由閥瓣下方進(jìn)入閥六時(shí)，操作力所需要克服的阻力，是閥桿和填料的磨擦力與由介質(zhì)的壓力所產(chǎn)生的推力，關(guān)閥門的力比開閥門的力大，所以閥桿的直徑要大，否則會(huì)發(fā)生閥桿頂彎的故障。近年來，從自密封的閥門出現(xiàn)后，截止閥的介質(zhì)流向就改由閥瓣上方進(jìn)入閥腔，這時(shí)在介質(zhì)壓力作用下，關(guān)閥門的力小，而開閥門的力大，閥桿的直徑可以相應(yīng)地減少。同時(shí)，在介質(zhì)作用下，這種形式的閥門也較嚴(yán)密。我國閥門“三化給”曾規(guī)定，截止閥的流向，一律采用自上而下。
截止閥具有以下優(yōu)點(diǎn)：
密封性好，密封面間磨擦力小，壽命較長(zhǎng)。
截止閥開啟時(shí)，閥瓣的開啟高度，為公稱直徑的25%～30%時(shí)，流量已達(dá)到最大，表示閥門已達(dá)全開位置。所以截止閥的全開位置，應(yīng)由閥瓣的行程來決定。
