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，定做時允許作調節和節流。截止閥開啟時，閥瓣的開啟高度，為公稱直徑的25%～30%時，流量已達到zui大，表示閥門已達全開位置。所以截止閥的全開位置，應由閥瓣的行程來決定。以上內容均根據學員實際工作中遇到的問題整理而成，供參考，如有問題請及時溝通、指正。上海申弘閥門有限公司主營閥門有：截止閥,角式截止閥,電站截止閥,波紋管截止閥,真空截止閥,抗生素截止閥,水封截止閥,氧氣截止閥,節流截止放空閥,低溫截止閥，高溫高壓截止閥,氣動截止閥,電動截止閥,氨氣截止閥,止回閥，閘閥,安全閥、保溫閥、低溫閥、球閥蝶閥、過濾器、放料閥、隔膜閥、旋塞閥、柱塞閥、平衡閥、調節閥、疏水閥、管夾閥、排污閥、排氣閥、排泥閥、氣動閥門、電動閥門、高壓閥門、中壓閥門、低壓閥門、水力控制閥、真空閥門、襯膠閥門、襯氟閥門。
截止閥的工作原理
打個比方，假設一個帶蓋的水缸，水從缸底進入，從缸口流出，缸蓋就相當于閥的關閉件。要是用手向上提起缸蓋，就相當于截止閥的工作原理。要是用手向旁邊移開缸蓋，相當于閘閥的工作原理。本閥適用于PN 1.6～42MPa，工作溫度在-29～+570℃的石油、化工、火力電站冶金、城建等各種工況的管路上，切斷或接通管路介質。根據用戶不同需要，驅動裝置可配電動、氣動、液動和手動。
采用標準
設計與制造 | JB/T3595、GB/T12235、ASME B16.34 | |
連接端尺寸 | 結構長度 | GB/T12221、ASME B16.10、GB/T15188.1 |
法蘭尺寸 | GB/T9112~9124、JB/T79、HG20592、SH3406、ASME B16.5 | |
焊端尺寸 | GB/T12224、JB/T 3595、ASME B16.25 | |
檢驗與試驗 | JB/T9092、JB/T3595、API598、ISO5208 | |
材 料 | 碳 鋼 | GB/T12229、ASTM A216、A352、A105 |
不 銹 鋼 | GB/T12230、GB1220、ASTM A351、A182 | |
合 金 鋼 | GB/T3077、JB/T5263、ASTM A217、A351 | |
標 志 | GB/T12220 | |
供 貨 | JB/T7928 | |
主要技術參數
公稱通徑DN（㎜） | 15~300 | |||||||||
公稱壓力PN（MPa） | 1.6 | 2.5 | 4 | 6.4 | 10 | 16 | 25 | 32 | 42 | |
試驗壓力（Mpa） | 強度試驗 | 2.4 | 3.8 | 6 | 9.6 | 15 | 24 | 37.5 | 48 | 63 |
密封試驗 | 1.8 | 2.8 | 4.4 | 7.1 | 11 | 17.6 | 27.5 | 35.2 | 46.2 | |
適用介質 | 水、蒸氣、油品、天然氣、酸、堿類等 | |||||||||
適用溫度（℃） | -29～+570 | |||||||||
主要零件材料
名 稱 | 材 料 |
閥 體 | A105、F304、F316、F316L、WCB、WC6、WC9、CF8、CF8M、CF3M、C5 |
閥 蓋 | A105、F304、F316、F316L、WCB、WC6、WC9、CF8、CF8M、CF3M、C5 |
閥 板 | A105、F304、F316、F316L、WCB、WC6、WC9、CF8、CF8M、CF3M、C5 |
閥 桿 | 2 Cr13、25Cr2Mo1V、1Cr18Ni9Ti、316、316L |
密 封 圈 | 2 Cr13、0507Mo D802 304、316、316L |
填 料 | 柔性石墨、PTFE |
主要標準：
1、設計標準：GB/T12235
2、連接標準：
1）對焊端BW：按GB/T12224
2）法蘭端RF：按JB79；GB/T9113；HG20592
3、閥門檢驗與試驗：
GB/T13927；JB/T9092
采用以下結構：
明桿支架式
螺栓連接閥蓋；內壓自緊式閥蓋
整體式上密封座
詳細介紹：
截止閥標準匯總
標準編號 | 標準中文名稱 | 標準英文名稱 |
DL/T531-1994(2005復審) | 電站高溫高壓截止閥、閘閥技術條件 |
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GB/T11689-1989 | 船用法蘭鑄鋼截止閥(四進位) | Marine cast steel flanged stop valves |
GB/T12235-1989 | 通用閥門法蘭連接鋼制截止閥和升降式止回閥 | General purpose industrial valves—Flanged steel globe valves and lift check valves |
GB/T12233-1989 | 通用閥門鐵制截止閥與升降式止回閥 | General purpose industrial valves—Casting iron globe valves and lift check valves |
GB/T1951-1984 | 船用低壓外螺紋青銅截止閥 | Marine low pressure bronze male threaded stop valves |
GB/T2499-1993 | 船用法蘭鑄鐵雙排箱 | Marine cast iron flange dual-row stop valves-case |
GB/T590-1993 | 船用法蘭鑄鐵 | Marine cast iron flanged stop valves |
GB/T594-1983 | 船用外螺紋鍛鋼截止閥 | Marine forged steel male thread stop valves |
GB/T584-1999 | 船用法蘭鑄鋼截止閥 | Marine cast steel flanged stop valves |
GB/T595-1983 | 船用外螺紋青銅截止閥 | Marine bronze male thread stop valves |
GB/T587-1993 | 船用法蘭青銅截止閥 | Marine bronze flanged stop valves |
JB/T7245-1994 | 制冷裝置用截止閥 |
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JB/T7747-1995 | 針形截止閥 |
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JB/T9081-1999 | 空氣分離設備用低溫截止閥和節流閥技術條件 |
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JB/T53165-1999 | 高壓平衡截止閥 產品質量分等 |
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JB/T53174-1999 | 截止閥 產品質量分等 |
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JB/T53155-1999 | 空氣分離設備用低溫截止閥和節流閥 產品質量分等 |
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JB/T8859-2004 | 截止閥靜壓壽命試驗規程 |
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HG/T3215-1986 | 聚三氟氯乙烯塑料襯里截止閥 |
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NF E29-350-2003 | 工業用閥.鋼制球閥、球狀截止閥和止回閥 | (Industrial valves - Steel globe and globe stop and check valves.) |
NF P43-001-2000 | 建筑物用閥門.建筑物中供應引用水用銅合金截止閥.試驗和要求 | (Building valves - Copper alloy stopvalves for potable water supply in buildings - Tests and requirements.) |
NF D36-380-2001 | 燃氣燃燒器和燃氣用具用自動截止閥的閥門檢驗系統 | (Valve proving systems for automatic shut-off valves for gas burners and gas appliances.) |
NF A84-621-2002 | 氣焊設備.焊接、切割和相關工藝用帶截止閥的速動連接 | (Gas welding equipment - Quick-action coupling with shut-off valves for welding, cutting and allied processes.) |
NF M88-771-1975 | 液化烴容器裝置.手動截止閥.制造.功能.試驗 | (LIQUEFIED HYDROCARBON INSTALLATIONS IN CONTAINERS. MANUALLY CONTROLLED STOP VALVE. CONSTRUCTION. OPERATION. TESTS.) |
NF P43-002-1981 | 建筑物水管閥門.水表截止閥.一般技術規范 | (VALVES AND TAPS FOR WATER SUPPLY IN BUILDINGS. STOP VALVES FOR METER. GENERAL TECHNICAL SPECIFICATIONS.) |
BS EN 13709-2003 | 工業用閥.鋼制球閥、球狀截止閥和止回閥 | (Industrial valves - Steel globe and globe stop and check valves) |
BS 1552-1995 | 一類、二類和三類燃氣用手動截止閥規范 | (Specification for open bottomed taper plug valves for 1st, 2nd and 3rd family gases up to 200 mbar) |
BS 7461-1991 | 帶有流量調節器、閉路開關指示、閉合位置指示器開關或氣流量控制的電動自動氣體截止閥規范 | (Specification for electrically operated automatic gas shut-off valves fitted with throughput adjusters, proof of closure switches, closed position indicator switches or gas flow control) |
BS 1010-2-1973 | 給排水設施用排放旋塞和截止(旋壓式)閥規范.第2部分:排放旋塞和地面上用截止閥 | (Specification for draw-off taps and stopvalves for water services (screw-down pattern) - Draw-off taps and above-ground stopvalves) |
BS 1873-1975 | 石油、石油化學及有關工業用鋼球形閥、球形截止閥與單向閥(有法蘭及對接焊端)規范 | (Specification for steel globe and globe stop and check valves (flanged and butt-welding ends) for the petroleum, petrochemical and allied industries) |
BS 3457-1973 | 水與截止閥座墊圈材料規范 | (Specification for materials for water tap and stopvalve seat washers) |
DIN 4817-1-1981 | 液態氣的截止閥.概念.安全技術要求.檢驗.標志 | (Shut off valves for liquefied gases; definitions, requirement, testing, marking) |
DIN 86251-1998 | 造船用鑄鐵制帶法蘭的DN15至500的截止閥 | (Shutt off valves for shipboard use, of cast iron, with flanges, DN 15 to 500) |
DIN 86260-1998 | 造船用炮銅制帶法蘭DN15至500的截止閥 | (Shutt off valves for shipboard use, of gun metall, with flanges, DN 15 to 500) |
DIN 85003-4-1997 | 造船用管件的交貨技術條件.第4部分: | (Technical specifications for valves for shipboard use - Part 4: Stop valves) |
DIN 85003-6-1997 | 造船用管件的交貨技術條件.第6部分:手動 | (Technical specifications for valves for shipboard use -Part 6: Hand operated gate valves) |
DIN 3399-1986 | 低壓截止閥.安全技術要求和檢驗 | (Gas low-pressure cut-off valves; safety requirements, testing) |
DIN 3160-1974 | 公稱壓力25的冷卻劑循環直通截止閥 | (Through-valves for refrigerant circuits, nominal pressure 25 bar) |
DIN 3161-1974 | 公稱壓力25的冷卻劑循環角形截止閥 | (Elbow valves for refrigerant circuits; nominal pressure 25 bar) |
DIN 4056-1992 | 水管.街道地下門的路蓋.DVGW技術規范 | (Water pipelines; valve boxes for stop valves; DVGW code of practice) |
DIN EN 1643-2001 | 燃氣燃燒器和燃氣用具用自動的閥門檢驗系統 | (Valve proving systems for automatic shut-off valves for gas burners and gas appliances; German version EN 1643:2000) |
DIN 86500-1968 | 船用螺紋連接的截止閥和閘閥等概述 | (Valves and Gate Valves with Screwed Connections; Survey of Types for Shipbuilding) |
DIN 86254-2000 | 船只及造船技術.超輕型截止閥DN32-DN125(PN10) | (Ships and marine technology - Shut off valves extra light duty DN 32 to DN 125, PN 10) |
DIN EN 13709-2003 | 工業用閥.鋼制球閥、球狀和止回閥 | (Industrial valves - Steel globe and globe stop and check valves; German version EN 13709:2002) |
DIN EN 1213-1999 | 建筑閥門.建筑物中飲用水供應用銅合金.試驗和要求 | (Building valves - Copper alloy stopvalves for potable water supply in buildings - Tests and requirements; German version EN 1213:1999) |
DIN 86266-2002 | 船舶和航海技術.用手夾緊和法蘭連接的超輕型法蘭的截止閥 | (Ships and marine technology - Butterfly valves for flanges extra light duty wafer type and flanged type - DN 50 to DN 125, PN 10) |
GB/T1856-1993 | 船用法蘭鑄鐵單排排出截止閥箱 | Marine flanged cast iron single arrangement exhaust stop box valve |
GB/T1854-1993 | 船用法蘭鑄鐵單排吸入箱 | Marine flanged cast iron single arrangement suction stop box valve |
JIS B8605-2002 | 致冷裝置的截止閥 | (Stop valves for refrigerants) |
JIS F7379-1996 | 造船.卡套式30K黃銅截止閥 | (Shipbuilding -- Brass 30K stop valves with bite joint(s)) |
JIS E4103-1988 | 鐵路車輛用截止閥 | (Cut-out cocks for railway rolling stock) |
JIS E4114-1989 | 鐵路車輛用青銅截止閥 | (Bronze stop valves for railway rolling stock) |
QB/T3880-1999 | 衛生潔具、暖氣直角式截止閥技術條件 | Technical requirements for sanitariness ware and heating angle valve |
QB/T3881-1999 | 衛生潔具、暖氣直角式截止閥型式和尺寸 | Shapes and dimensions of sanitariness ware and heating angle valve |
JB/T10530-2005 | 氧氣用截止閥 |
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