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鑄鐵隔膜閥
鑄鐵隔膜閥以柔性隔膜壓向堰脊（weir）來隔斷或節流公用流體，使濕潤金屬件不接觸介質——閥體僅支撐真正接觸流體的襯裡與彈性體。產品範圍涵蓋鑄鐵、球墨鑄鐵或 WCB 閥體與閥盤，NBR 或 EPDM 襯裡與隔膜，DN15 至 DN250，PN6 至 PN16 或 Class 150，法蘭端接，操作為手動、電動或氣動，依 BS 5156、BS 6755、ASME B16.5、BS 4505 與 EN 1092。選型取決於隔膜彈性體對溫度與化學性質、固含量、操作頻率，以及在線更換隔膜的便利性。
屬於 隔膜閥 系列
最後更新： 2026-11
系列規格
| Nominal valve connection size | DN15 to DN250 |
|---|---|
| Pressure class / nominal rating designation | PN6 to PN16, Class150 |
| Design standards | BS 5156, BS 6755, ASME B16.5, BS 4505, EN 1092 |
| Valve body material | Cast Iron, Ductile Iron, WCB |
| Disc Materials | Cast Iron, Ductile Iron, WCB |
| lining materials | NBR, EPDM |
| diaphragm materials | NBR, EPDM |
| Suitable Medium | Graphite, PTFE |
| End connection types | Flanged |
| Operation / closure mode | Manual, Electric Actuated, Pneumatic Actuated |
| weir type flange connections | GB/T9113, EN1092, ANSI B16.10, JIS B2212, BS4504 |
| weir type size span | DN20 to DN250 |
| weir type pressure ratings | PN6, PN10, PN16 |
| weir type body bonnet materials | Cast Iron, Ductile Iron, Cast Steel, Stainless Steel |
| weir type disc materials | Cast Iron, Ductile Iron, Cast Steel, Stainless Steel |
| weir type lining options | Unlined, Rubber, NBR, EPDM, NR, PTFE |
| weir type diaphragm options | Rubber, PTFE |
| weir type actuation options | Handwheel, Pneumatic, Electric |
| weir type suitable media | Corrosive media, Viscous media, Slurry media |
| pneumatic actuated model series | G641J-6, G641J-10, G641J-16 |
| pneumatic actuated size span | DN15-DN600 |
| pneumatic actuated pressure levels | PN6, PN10, PN16 |
| pneumatic actuated temp range | -9 to 80 °C |
| pneumatic actuated actuator modes | Normally Closed, Normally Open |
| pneumatic actuated part materials | Body: cast iron, ductile iron, carbon steel, stainless steel; bonnet: cast iron, ductile iron, carbon steel, stainless steel; lining: rubber; diaphragm: rubber; disc: cast iron, carbon steel; cylinder: ductile iron; piston: carbon steel; stem: carbon steel; handwheel: cast iron |
| pneumatic actuated lining test | EDM lining spark test |
| weir bs5156 size span | 3/4-16 inch (DN20-DN400) |
| weir bs5156 pressure ratings | PN10, PN16, Class 125 LB, Class 150 LB |
| weir bs5156 design standards | BS 5156-85, MSS SP-88, GB 12239-89 |
| weir bs5156 face to face standards | BS 5156-85, ANSI B16.10, GB 12221-85, DIN 3202 |
| weir bs5156 flange standards | BS, DIN PN10 & PN16, JIS 10K, ANSI B16.5 Class 125 & 150 |
| weir bs5156 inspection test standards | BS 5156, MSS SP-82, GB/T 13927 |
| weir bs5156 face to face series | EN 558-1, BS 5156, DIN 3202 Series F1 |
| weir bs5156 body materials | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Duplex Stainless Steel, ASTM A216 WCB, ASTM A351 CF8, CF8M |
| weir bs5156 lining materials | Hard Rubber (Ebonite), Natural Rubber, Neoprene, Hypalon, Butyl, EPDM, FEP, PFA |
| weir bs5156 diaphragm materials | Natural Rubber, Neoprene, Hypalon, Butyl, EPDM, Silicone, PTFE-backed Neoprene |
| weir bs5156 stem materials | AISI 410, AISI 304, AISI 316 |
| weir bs5156 operation options | Handwheel, Pneumatic, Electric |
| weir bs5156 temp range | -29°C to 150°C |
| weir bs5156 handwheel materials | Ductile Iron, Aluminum Alloy |
| weir bs5156 lining custom options | Glass, ETFE, PFA, PVDF, ECTFE |
| actuated lined flange standards | ASME B16.5, BS 4504, EN 1092 |
| actuated lined body bonnet disc materials | Body/bonnet and disc: Cast Iron, Ductile Iron, WCB, CF8, CF8M, CF3, CF3M |
| actuated lined elastomer options | NR, BR, IIR, CR, NBR, EPDM, CSPE |
| actuated lined suitable medium | Graphite, PTFE |
| actuated lined temp range | -20 to 120 °C |
| actuated lined pressure rating | PN6 to PN16, Class 150 |
| actuated lined size range | DN50-DN300 (2"-12") |
| actuated lined configuration options | Lined or unlined, Electric or pneumatic actuator, Optional locking device, Position indicator |
| actuated lined test and marking | tested to BS 6755, marked per MSS SP-25 |
| lining | NBR, EPDM |
| diaphragm | NBR, EPDM |
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
鑄鐵隔膜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。
鑄鐵隔膜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。
鑄鐵隔膜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。