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雙偏心蝶閥
雙偏心蝶閥將軸偏離中心線與閥座平面之外，使蝶盤開啟時幾乎立即脫離閥座，相較同心設計摩擦磨損大幅下降。產品範圍涵蓋 DN50 至 DN600，PN10 至 PN63 / Class 150 至 Class 1500，對夾端接，閥體為球墨鑄鐵、WCB 或 SS304/SS316，蝶盤選項至鋁青銅、閥桿 SS410 系列、閥體閥座 13Cr 至鈷鉻硬面合金配不鏽鋼+石墨密封，操作為蝸輪或執行器。設計依 API 609 / DIN 2559 / EN 593，面距依 ASME B16.5 / DIN3202 F4 / EN558-1，測試依 API 598。選型取決於壓力等級對偏心閥座設計、閥座組合對溫度，以及對夾長度對配對法蘭。
屬於 蝶閥 系列
最後更新： 2026-11
系列規格
| Nominal valve connection size | DN50 to DN600 |
|---|---|
| Pressure class / nominal rating designation | PN10 to PN63, Class 150 to Class 1500 |
| Pressure class / nominal rating designation | PN10 to PN63, Class150 to Class1500 |
| Seat material | 13Cr body seat, cobalt-chromium hardfacing alloy body seat, SS304 body seat, Stainless Steel + Graphite |
| Disc Materials | Ductile Iron, SS304, SS316, Aluminium Bronze |
| Stem material | SS410, SS420, SS416, SS431 |
| Valve body material | Ductile Iron, WCB, SS304, SS316 |
| End connection types | Wafer Type |
| Operation / closure mode | Gear Operated, Electric Actuated, Pneumatic Actuated |
| Design standards | API 609, DIN 2559, EN 593 |
| Inspection and pressure-test standards | API 598 |
| Face-to-face dimensional standard | ASME B16.5, DIN3202 F4, EN558-1 |
| en593 pn40 doev size range | DN150 to DN3000 (6 inch to 120 inch) |
| en593 pn40 doev operating pressure | PN10, PN16, PN25, PN40 |
| en593 pn40 doev flange connection | Flange connection dimensions to EN 1092 |
| en593 pn40 doev top flange | ISO 5211 |
| en593 pn40 doev marking | EN 19 |
| en593 pn40 doev face to face | EN 558-1 series 14 (DIN 3202 F4) |
| en593 pn40 doev test standard | EN 12266-1, leak rate A |
| en593 pn40 doev bidirectional closure | Tight in both flow directions acc. to EN 1074-2 |
| en593 pn40 doev actuator flange | Actuator flange connection acc. to ISO 5211 |
| en593 pn40 doev shaft design | Anti-blowout shaft with shaft seal |
| en593 pn40 doev gear operator | Self-locking encapsulated maintenance-free worm gear, protection degree IP67, with position indicator and hand wheel |
| en593 pn40 doev design standard | DIN EN 593, drinking and service water shut-off up to 60 deg C |
| en593 pn40 doev service temperature | Drinking and service water up to 60 deg C |
| en593 pn40 doev application | Dams and hydropower, industrial, irrigation, power plants, sewage and wastewater treatment, water treatment |
| en593 pn40 doev body materials | Ductile cast iron GGG40 |
| en593 pn40 doev disc materials | Ductile cast iron GGG40 |
| en593 pn40 doev body seat | NiCr stainless steel welded overlay, micro finished |
| en593 pn40 doev disc seal | EPDM |
| en593 pn40 doev shaft materials | Stainless steel 1.4021 |
| en593 pn40 doev bolts materials | Stainless steel 1.4301 |
| en593 pn40 doev shaft bearings | Maintenance-free zinc-free bronze |
| en593 pn40 doev certification | EN 10204 3.1 |
| en593 pn40 doev coating | Inside and outside epoxy coated, blue RAL 5010; disc epoxy coated |
| en593 pn40 doev operation | Gearbox with hand wheel; electric, pneumatic or hydraulic actuator optional |
| en558 s13 doev size range | DN150 to DN2000 (6 inch to 80 inch) |
| en558 s13 doev operating pressure | PN10, PN16 |
| en558 s13 doev top flange | ISO 5211 |
| en558 s13 doev marking | EN 19 |
| en558 s13 doev face to face | EN 558-1 series 13 (BS 5155), double flanged short |
| en558 s13 doev test standard | EN 12266-1 |
| en558 s13 doev design construction | Double flanged valve with double eccentric disc, self-adjusting elastomer seat attached to disc and retaining ring |
| en558 s13 doev operation | Gearbox with hand wheel; electric, pneumatic or hydraulic actuator optional |
| en558 s13 doev flange connection | EN 1092 |
| en558 s13 doev actuator flange | ISO 5211 |
| en558 s13 doev body materials | Ductile cast iron GGG40 |
| en558 s13 doev disc materials | Ductile cast iron GGG40 |
| en558 s13 doev body seat | NiCr stainless steel welded overlay, micro finished |
| en558 s13 doev disc seal | EPDM |
| en558 s13 doev shaft materials | Stainless steel 1.4021 |
| en558 s13 doev bolts materials | Stainless steel 1.4301 |
| en558 s13 doev shaft bearings | Maintenance-free zinc-free bronze |
| en558 s13 doev certification | EN 10204 3.1 |
| en558 s13 doev coating | Inside and outside epoxy coated, coating thickness over 250 um, blue RAL 5010 |
| en558 s13 doev test leak rate | Leak rate A per DIN EN 12266-1, tight in both flow directions acc. EN 1074-2 |
| awwa c504 doev size range | DN150 to DN2600 (6 inch to 104 inch) |
| awwa c504 doev operating pressure | 150 PSI, 250 PSI |
| awwa c504 doev flange connection | ANSI CL150 (ASME B16.1) |
| awwa c504 doev top flange | EN ISO 5211 F rating |
| awwa c504 doev marking | NSF |
| awwa c504 doev face to face | AWWA C504 short body |
| awwa c504 doev test standard | AWWA C504 / NSF 61/372 |
| awwa c504 doev application | Dams and hydropower, industrial, irrigation, power plants, sewage and wastewater treatment, water treatment |
| resilient doev size range | 50 NB to 1200 NB (larger sizes on request) |
| resilient doev operation | Lever, gear, pneumatic actuator, pneumatic cylinder, electrical (motorized) actuator, manual override arrangement with pneumatic and electrical actuator |
| resilient doev design standards | BS 5155, API 609, IS 13095 |
| resilient doev face to face | BS 5155, API 609, IS 13095 (wafer short) |
| resilient doev end connections | Wafer type, lug type, flanged end to suit ANSI / DIN / BS / JIS / IS |
| resilient doev testing standards | BS 5155, BS 6755 Part I, API 598, IS 13095 |
| resilient doev seat temperature epdm | -34 deg C to 107 deg C (EPDM, resilient seated) |
| resilient doev seat temperature ptfe | 4 deg C to 121 deg C (PTFE) |
| resilient doev seat temperature buna n | -12 deg C to 82 deg C (Buna-N) |
| resilient doev seat temperature neoprene | -6 deg C to 93 deg C (Neoprene) |
| resilient doev seat temperature hypalon | -17 deg C to 135 deg C (Hypalon) |
| resilient doev seat temperature fkm | -12 deg C to 135 deg C (FKM); high-temperature FKM option -12 deg C to 204 deg C |
| resilient doev design feature seat | Resilient seal encapsulated in the disc, fully adjustable and replaceable; one-piece seal retaining ring |
| resilient doev body seat ring materials | SS 304 standard for body seat ring and seal retaining ring, other materials optional |
| resilient doev seating options | Available in metal to metal seating |
| resilient doev shaft orientation | Horizontal shaft standard, vertical shaft mounting optional |
| resilient doev service capability | Suitable for throttling service, low head loss |
| resilient doev operator standard | Worm gear operator supplied as standard, other means of operation on request |
| resilient doev design variant | Double eccentric design |
| resilient doev applications | Water works, power plants, sewage plants, process industries, chemical and petrochemical plants |
| mounted disc doev size range | DN150 to DN2500 |
| mounted disc doev design variant | Double eccentric, mounted disc |
| mounted disc doev design standard | EN 593 |
| mounted disc doev face to face | EN 558-1 series 14, series 13 optional |
| mounted disc doev flange connection | EN 1092-2 |
| mounted disc doev pressure class | PN 10, PN 16, PN 25, PN 40 |
| mounted disc doev operator standard | Worm gearbox and handwheel |
| mounted disc doev actuator ready | Prepared for actuator |
| mounted disc doev body seat | Body seat made of stainless steel, welded and microfinished |
| mounted disc doev body disc materials | Body and disc made of ductile iron, epoxy powder coated |
| mounted disc doev sealing ring | Sealing ring made of elastomer |
| mounted disc doev retaining ring | Retaining ring made of steel, epoxy powder coated |
| mounted disc doev connections materials | All connections made of stainless steel |
| mounted disc doev shaft bearings | Bearing system made of bronze, self lubricating |
| mounted disc doev shaft materials | Shafts made of stainless steel |
| mounted disc doev handwheel material | Handwheel made of cast iron, epoxy powder coated |
| ip68 doev size range | DN150 to DN1600 |
| ip68 doev face to face | EN 558-1 series 14 |
| ip68 doev flange connection | EN 1092-2 |
| ip68 doev pressure class | PN 10, PN 16 |
| ip68 doev operator standard | Wormgearbox and handwheel, protection class IP 68 |
| ip68 doev protection class | IP 68 |
| ip68 doev installation | Applicable for below ground installation, simple assembly of the extension spindle |
| ip68 doev actuator ready | Applicable for actuator |
| ip68 doev body seat | Sealing seat made of stainless steel, welded and microfinished |
| ip68 doev body disc materials | Body and disk made of ductile iron, epoxy powder coated inside and out |
| ip68 doev sealing ring | Sealing rings made of elastomer |
| ip68 doev retaining ring | Retaining ring made of stainless steel |
| ip68 doev shafts connections | Shafts and all connections made of stainless steel |
| ip68 doev shaft bearings | Bearings made of bronze |
| ip68 doev handwheel material | Handwheel made of cast iron, epoxy powder coated |
| fbe doev design variant | Double eccentric design, double flanged, bi-directional |
| fbe doev design standards | BS EN 593, EN 1074-1 and 2, IS 13095 |
| fbe doev face to face | EN 558, ISO 5752, IS 13095 |
| fbe doev top flange | ISO 5211 |
| fbe doev flange drilling | EN 1092-2 PN10 and PN16, IS 9523, IS 1538 |
| fbe doev test pressure | Pressure testing acc. EN 1074-1 and 2, IS 13095, EN 12266-1 and 2; shell test 1.5 x PN, seat test 1.1 x PN |
| fbe doev body design | Cast ductile iron, double flanged design, bi-directional applications |
| fbe doev seat options | Stainless steel seats, soft seated |
| fbe doev shaft options | SS 420, Duplex |
| fbe doev coating | NSF/WRAS approved fusion bonded epoxy coating, minimum 250 microns (300 microns optional) |
| fbe doev seat repairability | Easy maintenance: replaceable valve seal |
| fbe doev sealing technology | Double offset sealing technology with soft sealing element on the disc |
| eccentric line design variants | Concentric, single eccentric, double eccentric and triple eccentric (offset) types |
| eccentric line end connections | Wafer, flanged, butt-weld, lugged and grooved |
| eccentric line flange standards | EN 1092-2, BS 4504, BS 10 Table D or E, ASME B16.1, ASME B16.42, ASME B16.5, ASME B16.47 Category A or B |
| eccentric line face to face standards | EN 558-1 series 20, BS 5155 wafer-short type, ISO 5752, MSS SP-68 |
| eccentric line actuator flange | ISO 5211 |
| eccentric line test standard | EN 12266-1 |
| body seat | 13Cr, cobalt-chromium hardfacing alloy, SS304, SS316 |
| end connection | Wafer Type |
| flanged end dimension | DIN, ANSI B16.1, BS4504, EN1092 |
| shutoff direction | Bi-Directional |
| maintenance design | All parts replaceable, in-line maintenance available |
訂購與文件
文件
請在詢問時一併說明您需要的文件組合——此結構的常見項目（材質證明、按所列檢驗標準的測試報告、尺寸圖）將於報價時確認並隨附供應。
報價
可直接報價的詢問應說明：公稱口徑與壓力額定、閥體與閥座材質偏好、端部連接、操作方式，以及含溫度的使用介質。本頁的典型值為基準參考範圍；具有約束力的數值於報價時確認。
樣品與供應
供應條件、訂購數量與交期按訂單議定——請在詢問時說明目的地國家與所需時程。
儲存與運輸
閥門儲存時應保護閥座與密封件免受紫外線、臭氧與變形影響，安裝前保留端面保護蓋；彈性體或 PTFE 閥座結構應避免長期戶外存放——閥座材料在陽光直射與冰凍條件下老化最快。
常見問題
雙偏心蝶閥的報價詢問應包含哪些內容？
執行標準與壓力等級、公稱口徑、閥體與閥座材質、介質及溫度、目的地——缺失的資訊會在報價過程中確認。
雙偏心蝶閥提供哪些口徑與壓力等級？
本頁面尚未公布該閥門經驗證的口徑與壓力等級範圍——適用於您工況的口徑與壓力等級會在報價過程中提出並確認。請在詢問時附上工況條件，選型結果會在報價中說明。
雙偏心蝶閥提供哪些閥體材質？
本頁面尚未公布該閥門經驗證的閥體材質範圍——適用於您工況的閥體材質會在報價過程中提出並確認。請在詢問時附上工況條件，選型結果會在報價中說明。