DBB PLUG
With the need for verifiable and maintainable shut off in safety critical applications, double block and bleed valves have commonly been used for primary and secondary tight shut off, in an attempt to provide and ensure system integrity. Historically, system integrity would be achieved through the use of two individual isolation valves, a spool piece and a bleed valve that had the disadvantage of extensive cost and weight and also increased the risk of emissions due to multiple flanged faces. Consequently, integral DB&B valves are now widely used.
These valves have a single or side entry body design with dual Plug valves with a bleed valve installed between the two main line valves. These valves are available bi-directional in metal seated and soft seated style, in bubble tight shut off. Sometimes called twin valves, DB&B valves are available in Plug up to 600mm NB in ANSI 150 to 2500 class. These DB&B design valves replace existing traditional techniques employed by pipeline engineers to generate a double block and bleed configuration in the pipeline.
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محصولات
ارجینال
گارانتی و وارانتی
محصولات
ضمانت بازگشت
و تضمین اصالت
پشتیبانی
اختصاصی
قیمت محصول
برای قیمت تماس بگیرید
Size Range | ۲in – ۳۶in |
Pressure Rating | Class 150 – Class 900 |
Elastomer Seals | Viton GF, Viton GFLT, Viton ETP, Kalrez |
Body Materials | A216 WCB, A216 WCC, A352 LCC |
Stem/Plug Material | A216 WCB, A216 WCC, A350 LF2, A352 LCC, all with 2-3 mils of ENP |
Temperature Rating | -۲۰F to 400F (Standard Temp) -50F to 400F (for low temp) |
Certification: | Standard: API 6D, API 6FA |
By Request: PED, ISO 15848-1 | |
Operation: | Manual, Electric, Hydraulic |
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