Item 305B

double block and bleed valve (DBB valve), ISO direct mount, thread/ SW/ BW/ flanged end

• size: 1/2” to 4”
• mat: CF8M/ WCB
• rating: 2160 WOG/ ASME 600/ ASME 900
• option: automation, alloy

雙關斷閥 (DBB球閥)

Item 306B

Item 207B

double block and bleed valve (DBB valve), ISO mount (not direct), flanged end

• size: 1/2” to 4”
• mat: CF8M/ WCB
• rating: ASME 150/ 300
• option: automation/ filler/ alloy

fire safe

fire safe

double block and bleed valve (DBB valve), ISO direct mount, thread/ SW/ BW/ flanged end

• size: 1/2” to 3”
• mat: CF8M/ WCB
• rating: 3600 WOG/ ASME 1500
• option: automation

fire safe

雙關雙斷閥提供雙重關閉功能，對於誤用與球閥洩漏來說是相當安全的選擇。介於雙閥之間的排泄閥為殘存的流體提供一個排出系統的出口。殘留越少越能夠保障新流體免於汙染。

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