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機械式夾管閥
機械式夾管閥以調節機構驅動的水平壓桿壓縮彈性套管——手輪、氣缸、液壓缸或電機械驅動——在不使用壓縮空氣閥體腔的場合提供封閉、確定的夾閉控制。套管是主要承壓部件也是唯一濕潤部件；開啟狀態為 100% 全通徑，關閉全程維持光滑文丘里流道，漿料與磨蝕介質通過時無裂縫、縫隙或死角。產品範圍涵蓋三個系列——OV 手動閥、VZ 封閉閥（含流量調節的機械與感測器測量）以及至 1200 mm 與 40 bar 的 RV 超重載系列——典型機械管線壓力至 PN 10。溫度限值按彈性體各自確定（自純膠橡 180 F 連續至 Viton 400 F，不適於蒸汽），並非單一區間。選型取決於驅動機構對安裝通道、套管材料對介質與溫度（脂肪油、蒸汽與石油各自排除特定彈性體）、節流任務——套管扮演可變孔口但接近關斷時壽命縮短——以及維護模式：套管是唯一磨損件、可在線更換，每月鋰基脂潤滑並以齒形配對法蘭防止橡膠蠕移。
屬於 夾管閥 系列
最後更新： 2026-11
系列規格
| Pressure class / nominal rating designation | Typically up to PN 10 (line pressures rarely exceed 10 bar); pneumatic type up to 6 bar, RV ultra-heavy-duty line up to 40 bar (exceptional) |
|---|---|
| product lines | OV (manual, hand crank and air cylinder actuation), VZ (enclosed, mechanical and sensor flow measurement), RV (ultra-heavy duty) |
| Model-series maximum valve size | up to 1200 mm |
| rv pressure max | up to 40 Bar |
| Actuation Options | Manual Handwheel, Two-sided pneumatic cylinder, Single-acting spring return pneumatic cylinder, Single-sided pneumatic spring with a pneumatic cylinder, Hydraulic cylinder, Electro-mechanical actuation |
| position sensing | electronic sensor and gauge to verify the exact amount of flow restriction (on many models) |
| sleeve materials | Neoprene, Natural Rubber, EPDM, Viton, Silicon, Nitrile, Hypalon, Butyle |
| End connection types | Flanged (ANSI, DIN), Threaded (NPT, BSPP) |
| bore full port | 100% full port when completely open (no pressure drop); smooth venturi maintained through closure, no cracks, crevices or dead spots |
| pressure boundary | Sleeve is the primary pressure-containing component and the only component in contact with the process fluid; body/frame is housing and support only |
| sleeve construction | Vulcanized laminate: elastomer inner tube, high-strength nylon/polyester/Kevlar fabric reinforcement, exterior neoprene cover — vulcanized under pressure into one pressure-containing sleeve |
| Valve body material | Aluminum, cast iron, steel or stainless steel, plastic (POM, PVC) in small sizes |
| standards referenced | EN 558 (face-to-face dimensions), EN 1092-1 / ASME B16.5 (connecting flanges), ISO 5208 (leakage rates), ISO 1817 / ISO 37 (sleeve elastomer liquid-resistance and tensile tests) |
| sleeve temperature | Pure Gum Rubber: -50 to +180 F continuous, Neoprene: -50 to +230 F, Buna-N (NBR): -30 to +230 F, Chlorobutyl (CIIR): -50 to +250 F (300 F intermittent), Hypalon (CSM): -50 to +230 F, EPDM: -50 to +300 F continuous, +325 F surge; unsatisfactory with petroleum products, Viton (FKM): -10 to +400 F; unsatisfactory for steam service |
| throttling | Excellent control characteristics — usable as a variable orifice; the flow/control curve can be changed by swapping the sleeve; sleeve life shortens when throttling close to shutoff where throat velocity is highest |
| failure modes | Wrong elastomer for media (e.g. natural rubber reacting badly to fatty oils — use Nitrile), Blistering from over-temperature media, Vacuum applications: sleeve tears from the outside when over-pressurized, Split sleeve from foreign body or sharp object in the media flow, Over-pinching stresses fabric reinforcement — delamination or premature tearing, Permanent set/deformation from improper storage |
| maintenance | Sleeve is the only replacement part required — replaced in line, restoring the valve to like-new condition; manual valves should be lubricated and actuated monthly with high-quality lithium grease, greased in the full-closed position; a spare sleeve is a factory-recommended spare part; store spare sleeves cool, dry and away from ozone, light, electric motors and chemicals |
| installation constraint | Mating flanges should be serrated approx. 1/16 in x 90 deg — rubber creeps along smooth metal, PVC or PTFE flanges and eventually leaks |
| closure design | Symmetric closure (two jaws advancing simultaneously from above and below) spreads deformation better and extends sleeve life under throttling; asymmetric closure uses a single pinch bar |
| bevel gear rule | Bevel gears suggested on sizes larger than 6 in and over 75 psi |
| duty split | Mechanical type throttles better and is the type installed in mineral slurry and water-treatment duties; pneumatic type is the typical dosing/shutoff valve for solids conveying, hoppers and the food industry |
| mining duty media | With the proper sleeve material: cyanide, xanthates, sulfuric acid and caustic materials such as lithium and lime |
| floating closure mechanism | Floating pinch mechanism design reduces the risk of binding from corrosion or long periods of inactivity — relevant for normally-open standby lines |
| self cleaning flexing action | Flexing action of the resilient sleeve during operation breaks up residue and buildup on the sleeve interior; pinch valves are self-cleaning, full-ported, with no crevices or dead spots to clog |
| spare sleeve stocking | Manufacturer IOM recommends keeping a spare sleeve on hand as the sleeve is the expendable wear component; store sleeves away from ozone, sunlight, and chemicals to prevent deterioration |
| pressure dn15 dn100 | maximum 5 bar |
| pressure dn125 dn200 | maximum 3 bar |
| pressure dn250 | maximum 2 bar |
| ov manual rating | DN80, maximum 6 bar |
| vz manual sizes | up to 400mm |
| vz pressure classes | 1 bar, 6 bar, 10 bar, 16 bar, 25 bar, 40 bar |
| rv series envelope | Ultra-Heavy Duty Pinch Valves for pipe diameters up to 1200 mm and pressures up to 40 Bar |
| design mechanism | Metal horizontal bar lowered or raised by an adjusting screw restricts or opens the sleeve |
範圍與來源備註
| temperature range | Replaced with per-elastomer temperature data from Red Valve elastomer documentation; page-level KXC range retired. |
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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
機械式夾管閥有哪些材質可選？
公布的規範列出sleeve materials：Neoprene, Natural Rubber, EPDM, Viton, Silicon, Nitrile, Hypalon, Butyle。特定口徑與壓力等級的材質供貨在報價時確認。
機械式夾管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。
機械式夾管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。
此系列中的更多內容
此子類型的型號與結構
型號
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鑄鐵夾管閥
鑄鐵夾管閥是夾管原理的手動操作壓板式版本：手輪驅動的滑車與壓板直接擠壓彈性橡膠套管以停止或恢復流動，僅套管接觸介質。基準頁涵蓋 DN25 至 DN150，PN10、PN16 與 150LB，閥體鑄鐵、碳鋼、SS304 與 SS316，依 ANSI、DIN 與 JIS 標準製造，法蘭依 ANSI B16.5、DIN 32
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