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雙密封旋塞閥
雙密封旋塞閥以 PTFE 套筒密封包覆旋塞，使兩道密封帶同時壓在閥體上——在單閥座隔離不足的管線、油庫與化學品轉送服務中實現雙向零洩漏關斷。產品範圍涵蓋套筒密封結構 1/2 至 20 吋（DN15 至 DN1500），額定 Class 150 至 2500 與 PN16 至 PN420，依 API 599、API 6D、ASME B16.34 與 BS 5353 建造並按 MSS SP-25 標識，防火設計依 API 607 與 API 6FA。無腔設計防止介質積聚，360 度金屬邊緣固定套筒，流動雙向；執行器從扳手、手輪與蝸輪到氣動與電動，端接為法蘭、承插焊、對焊或螺紋。額定 -29 至 150 °C，介質涵蓋淡水、污水、海水、空氣、蒸汽、食品、製藥、油、鹼與鹽類。法蘭依 ANSI B16.5、ASME B16.47、EN 1092 與 DIN 2543–2547；面距依 ASME B16.10、API 6D、DIN 3202、EN 558-1、EN 12982 與 ISO 5752；測試依 API 598、API 6D、DIN 3230、EN 12266 與 ISO 5208。選型取決於嚴密關斷要求、壓力等級與端接型式。
屬於 旋塞閥 系列
最後更新： 2026-11
系列規格
| Nominal valve connection size | 1/2" to 20", DN15 to DN1500 |
|---|---|
| Pressure class / nominal rating designation | Class 150 to Class 2500, PN16 to PN420 |
| Pressure class / nominal rating designation | Class 150 to 2500; PN16 to PN420 |
| Service temperature range | -29 to 150 °C |
| End connection types | Flange, Socket weld, Butt weld, Thread |
| Operation / closure mode | Wrench, Wheel, Worm gear, Pneumatic, Electric |
| Design standards | API 599, API 6D, ASME B16.34, BS 5353 |
| Inspection and pressure-test standards | API 598, API 6D, DIN3230, EN12266, ISO 5208 |
| marking standard | MSS SP-25 |
| seal structure | Sleeve type PTFE seal, Cavity-free design, Bidirectional flow |
| Fire Safe Design | API 607, API 6FA |
| Flange standards | ANSI B16.5, ASME B16.47, EN1092, DIN2543 to DIN2547, AS2129 |
| screwed end dimension | ANSI B1.20.1, BS21, JIS B020, JB/T 73.6 |
| Face-to-face dimensional standard | ASME B16.10, API 6D, DIN3202, EN558-1, EN12982, ISO 5752 |
| service media | Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Alkalis, Salt |
| Valve body material | WCB, A105, LCB, LF2, WC6, F22, CF8, CF8M, F304, F316 |
| plug materials | A105+ENP, Stainless Steel |
| Seat material | PTFE |
| Packing Materials | Graphite, PTFE |
| tsa design execution | Design as per API 599 & API 6D |
| tsa face to face addendum | Face to face as per ANSI b16.10& API 6D |
| tsa flanged ends addendum | Flanged ended as per ANSI B16.5 / EN-1092-1 |
| tsa construction | 3 Parts construction: body, lower plate, upper plateTrunnion mountedAntistatic design |
| tsa slip serviceability | slips are replaceable through the lower or upper plate |
| tsa bore options | Reduce bore or full bore |
| tsa low emission packing | Low emission packing & gaskets according to ISO 15848-1 |
| tsa bidirectional seats | two seating surfaces, each of which, seal to both directions |
| tsa cavity relief | In case of body cavity overpressure, venting/bleeding is provided by a thermal relief |
| tsa lower trunnion design | special designed lower trunnion, which prevents accumulation of particles and dirt in the lower part of the valve body |
| tsa backseat design | re-adjust the packing-gland or add additional gland packing-rings during field operation |
| tsa primary seal | The primary seal is an elastomer which is fully vulcanized on to the metal |
| tsa metal contact seal | An additional safety seal is achieved by a metal-to-metal contact between the metal-slip and internal valve-body |
| tsa enp coating | The sealing and contact area of valve-body is fully ENP-coated ensuring a corrosion-free contact with the slips |
| tsa thermal relief | This system includes a thermal relief valve in order to relieve pressure build up which might occur in the body cavity from thermal expansion |
| tsb slip retraction | two seating slips mounted independently on a tapered plug by dovetails, which mechanically retract from the seating surface prior to rotating |
| tsb shutoff class | a bubble-tight verifiable dual seal without seal abrasion |
| tsb serviceability | In addition to inline serviceability, the valve enables repairs from above or below |
| tsb bidirectional dbb | bidirectional sealing and double block-and-bleed capability |
| tsb secondary seat | The resilient seal is fully compressed into the slip seal groove, enabling secondary metal-to-metal seating between the slip and body |
| tsb elastomer options | Multiple elastomer options covering many different service conditions are available |
| tsb dtr system | an external thermal relief system is provided to relieve excess body pressure |
| tsb stem packing | Stem packing is low-emissions certified per API 622 and API 624 |
| tsb applications | pipeline pumping stations and terminals refinery bulk loading terminals aviation and marine fueling systems crude oil and refined products metering and measurement systems pig launcher and receiver systems |
| tsb ammonia service | renewable fuels and ammonia service |
| tsc piggable model | Model 900 (fullbore, piggable) |
| tsc short pattern model | Model 400 (short pattern) |
| tsc catalog size upper | 36 [900] 8811A 1500G |
| tsc catalog class 600 | ASME 600 handwheel operated |
| tsc catalog class 900 | ASME 900 gear operated |
| tsc catalog class 1500 | ASME 1500 gear operated |
| tsc body materials | Cast carbon steel ASTM A216 WCC Cast carbon steel ASTM A216 WCC Cast carbon steel ASTM A216 WCB |
| tsc bonnet materials | Carbon steel ASTM A216 WCC Carbon steel ASTM A516 Grade 70 |
| tsc stem materials | ASTM A705 17-4 ASTM A29, 4140 |
| tsc slip materials | Manganese phosphatecoated ductile iron ASTM A395 Grade 60-40-18 |
| tsc gland packing | Gland packing Graphite Graphite Graphite Body fire seals Graphite Graphite Graphite |
| tsc fasteners | ASTM A193 Grade B7/2H ASTM A193 B7/2H ASTM A193 Grade B7/2H |
| tsc low e endurance | certified to ISO 15848-1 with the highest endurance class of C03 |
| tsc elastomer breadth | available in more than 17 elastomers to meet most fluid needs |
| tsc dtr setpoint | set to open at 25 psi above upstream pressure |
| tsc prd requirement | a pressure-relief device must be provided on all double block-and-bleed valves in liquid service |
| tsc vacuum sealing | even seals in vacuum service |
| tsc self purging plate | automatically flush the lower trunnion with each valve cycle |
| tsc automatic bleed | mechanically opened by the valve operator when the valve is seated |
| tsc worm gear operator | Worm gear operator |
| end flange standards | ANSI B16.5, ASME B16.47, EN1092, DIN2543-DIN2547, AS2129 |
| screwed end standards | ANSI B1.20.1, BS21, JIS B0203, JB/T 73.6 |
| face to face standards | ANSI B16.10, API 6D, DIN3202, EN558-1, EN12982, ISO 5752 |
| test standards | API 598, API 6D, DIN 3230, EN 12266, ISO 5208 |
| Working temperature (source-defined) | -29 to 150 C |
| medium | Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt |
| operation options | Hand operated, gear operated, electric actuated, pneumatic actuated |
| Bonnet material | WCB, A105, LCB, LF2, WC6, F22, CF8, CF8M, F304, F316 |
| gasket materials | Stainless Steel+Graphite |
| bolt nut materials | B7/2H |
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
雙密封旋塞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。
雙密封旋塞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。
雙密封旋塞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。