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動。閥桿的運動形式，有升降桿式（閥桿升降，手輪不升降），也有升降旋轉桿式（手輪與閥桿一起旋轉升降，螺母設在閥體上）。截止閥只適用于全開和全關，不允許作調節和節流。

J41W-16P/25P/40P/64P/100P不銹鋼截止閥性能范圍

型 號 
公稱壓力 
試驗壓力工作溫度(℃) 
適用介質 
強度(水)Mpa密封(水)空氣(Mpa)低壓密封(空氣)MpaJ41W-16P(R)1.62.41.80.6≤200NITRIC ACID硝 酸 類J41W-25P(R)2.53.82.80.6≤200ACETIC ACID醋 酸 類J41W-40P(R)4.06.04.40.6≤200NITRIC ACID硝 酸 類J41W-64P(R)6.49.67.00.6≤200ACETIC ACID醋 酸 類

J41W-16P/25P/40P/64P/100P不銹鋼截止閥主要零件材料 

零件名稱 
材 料MaterialQ41W-16P-25P-40RQ41W-16R-25P-40R閥體、閥蓋 
鉻鎳鈦鋼 
Ci Ni Ti鉻鎳鉬鈦鋼 
Ci Ni Mo Ti Steel閥 板 
閥 桿 
閥桿螺母 
鋁鐵青銅手 輪 
灰鑄鐵、可鑄鍛鐵

J41W-16P不銹鋼截止閥主要連接尺寸和外形尺寸

型 號 
Type公稱通徑 
DN尺 寸(mm)LDD1D2Hb-fZ-ΦdDoJ41W-16P(R)1513095654517016-24-1412020150105755519016-24-1414025160115856520516-24-14160321801351007827018-24-18180402001451108531018-34-182005023016012510035818-34-182406529018014512037318-34-182808031019516013543520-38-1832010035021518015550020-38-1836012540024521018561422-38-1840015048028024021067424-38-2340020060033529526581826-312-2345025073040535532096930-312-25550

J41W-25P不銹鋼截止閥主要連接尺寸和外形尺寸

型號 
Type公稱通徑 DN尺 寸(mm)LDD1D2Hb-fZ-ΦdDoJ41W-25P(R)1513095654523316-24-1412020150105755527516-24-1414025160115856528516-24-14160321801351007830218-24-18180402001451108535518-34-182005023016012510036220-34-182406529018014512040022-38-182808031019516013543022-38-1832010035023019016046524-38-2336012540027022018855028-38-2540015048030025021870030-38-2540020060036031027878034-312-2545025073042537033590036-312-30550

J41W-40P/64P不銹鋼截止閥主要連接尺寸和外形尺寸

型號 
Type公稱通徑 DN尺寸(mm)LDD1D2Hb-fZ-ΦdDoJ41W-40P(R)1513095654523316-24-144020150105755527516-24-145125160115856528516-24-1458321801351007830218-24-1866402001451108535518-34-18765023016012510037020-34-18886529018014512040822-38-181108031019516013543622-38-1812110035023019016047524-38-2315012540027022018855828-38-2517815048030025021872030-38-2520420060037532028280038-312-30260J41W-64P(R)150170105755524018-24-144120190125906828020-24-1851252101351007829022-24-1858322301501108232524-24-2366402601651259536024-34-23765030017513510541026-34-23886534020016013043028-38-231108038021017014046530-38-2312110043025020016853732-38-2515012550029524020263036-38-3017615055034028024079038-38-3420420065040534530091044-312-34260