規格
| Nominal valve connection size | 3-16 inch (80-400 mm) |
|---|---|
| Service temperature range | up to 400 °F (200 °C) |
| Pressure Rating | 125 psi (860 kPa) CWP |
| Valve body material | Cast iron, Ni-resist, Aluminum, Carbon steel, 316 stainless steel |
| valve style | 4-way tapered plug (3-way execution in same family) |
| actuator types | Lever, Hand wheel, Chain wheel, Cylinder, Electric motor |
| media service | Throttling and diversion of clean, dirty, viscous and corrosive liquids; sludge, abrasive and fibrous slurries; and clean, dirty and corrosive gases |
| seat options | Resilient seated plugs for dead-tight shutoff (lever and double handwheel actuators), All-metal plugs for high temperature applications that do not require dead-tight shutoff |
| bearing stem design | Heavy duty stainless steel bearings and long-life stem seals |
| industries served | Sewage Treatment, Water Treatment & Distribution, Chemical & Petrochemical, Pulp & Paper, Mining, Power |
| plug styles | Single and double tapered plug styles, arrangeable into a variety of flow combinations |
應用與選型指引
Select this execution where a flow path must be redirected between three outlets - changeover between heaters, filters or alternative flow routes - rather than merely throttled, and where the low pressure class (125 psi CWP) and temperature ceiling (400 F) sit inside the service envelope. Choose resilient seated plugs for dead-tight shutoff with lever or double handwheel operation, or all-metal plugs where high temperature rules out resilient seats and dead-tight shutoff is not required. Match the body alloy to the medium: ni-resist and 316 SS for corrosive slurries, cast iron and aluminum for water and air duties.
常見問題
When is a four-way plug valve preferred over two two-way valves?
A four-way execution diverts between three outlets in one quarter turn with a single operator and a single body cavity, which removes the sequencing error and leakage paths of a two-valve changeover. In sludge, slurry and fibrous media the tapered plug wipes the seat as it turns, which two gate or globe arrangements cannot tolerate as cleanly.
What are the pressure and temperature limits of this execution?
The benchmark page rates the range at 125 psi (860 kPa) CWP with temperatures up to 400 F (200 C), in sizes 3-16 inch (80-400 mm). Those figures are cold working pressure - de-rate for hot service against the manufacturers pressure-temperature table before committing, and confirm the alloy compatibility with the medium.
Which plug and actuator combinations are available?
Single and double tapered plug styles can be arranged into a variety of flow combinations. Resilient seated plugs give dead-tight shutoff with lever, handwheel, chain wheel, cylinder or electric motor actuation; all-metal plugs suit higher temperature duties where dead-tight shutoff is not required. Heavy duty stainless steel bearings and long-life stem seals are standard across the range.
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。