閘閥 · 楔式閘閥（wedge）
WCB 鑄鋼閘閥（K107）
K107 WCB 鑄鋼閘閥結構：DN40 至 DN600，PN10/16，WCB 閥體與 WCB 加 2Cr13 密封面，內件列出至 570 C，工作溫度線 -20 至 425 C。這是油、水、蒸汽與氣體管線的通用碳鋼閘閥結構，當溫度或壓力超出鑄鐵領域時接替球墨鑄鐵閥門。
屬於 楔式閘閥（wedge） 系列
最後更新： 2026-11
規格
| Nominal valve connection size | DN40-DN600 |
|---|---|
| Pressure Rating | PN10/PN16 |
| Design standards | ANSI, EN593, DIN 2501 PN6/10/16, DIN3202 F4 |
| Valve body material | WCB |
| seal material | WCB +2Cr13stainless steel |
| Stem material | 2Cr13stainless steel |
| body cover plate materials | WCB, WC1, WC6, WC9, C5 C12, ZGCR5MO, ZG1CR18NI9TI, ZG1CR18NI12MO2TI |
| work temperature limit | <=570 C |
| medium | Nitric acid, acetic acid, water, oil, gas and some alkaline liquids |
| Service temperature range | -20-425C |
| Trim material | 2Cr13, 38CrMoal, 25Cr2MoV, 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti |
| gasket materials | reinforced flexible graphite, 13Cr / flexible graphite, 08 soft steel, 0Cr18Ni9TI, 0Cr17Ni12Mo2Ti |
| Packing Materials | flexible graphite, reinforced flexible graphite |
| max trim temperature | 570 C |
應用與選型指引
Choose this execution where the line leaves cast-iron limits but a pressure-seal forged design is not yet required - petrochemical, thermal power and oil-and-gas storage pipelines are the stated applications. The wide body/trim list (WC1/WC6/WC9/C5/C12 and stainless grades) should be matched to medium temperature at quotation, since the 425 C working line governs the WCB grade itself.
常見問題
What separates a WCB cast-steel gate from a ductile-iron gate?
WCB (ASTM A216) cast steel carries higher pressure-temperature ratings: the page rates working temperature -20 to 425 C, beyond ductile-iron practice, and lists internals to 570 C for high-temperature executions. Body/cover/plate options run from WCB through WC1, WC6, WC9, C5, C12 and stainless grades.
What is the sealing arrangement?
A 2Cr13 stainless sealing face on the WCB seat per the page description; gasketing is flexible-graphite family and the stem is 2Cr13 stainless. Design references are ANSI, EN593, DIN 2501 PN6/10/16 and DIN3202 F4 across DN40-DN600 at PN10/16.
What testing is applied before shipment?
The manufacturer states appearance, material, air-tightness, pressure and shell testing on every unit before leaving the factory; medium compatibility is stated as nitric acid, acetic acid, water, oil, gas and some alkaline liquids.
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。