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Double ball valve manifold
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Double ball valve manifold


Product Range

ŸSize Range: 2"-24" (DN50-DN600)

ŸPressure Rating: ASME CLASS 150-2500 (PN16-PN420)

ŸBody Material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, etc.

ŸEnd Connection: FLAN (RF, RTJ), etc.

ŸOperation: Manual, Pneumatic, Electric, Hydraulic, etc.


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Description


Product Range

ŸSize Range: 2"-24" (DN50-DN600)

ŸPressure Rating: ASME CLASS 150-2500 (PN16-PN420)

ŸBody Material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, etc.

ŸEnd Connection: FLAN (RF, RTJ), etc.

ŸOperation: Manual, Pneumatic, Electric, Hydraulic, etc.



Product Introduction
Double Block and Bleed Valve is a side-entry ball valve, with either a bolted or welded body, designed for use in upstream, midstream and downstream oil and gas applications. It requires two in-line isolation valves and a bleed valve used to drain or vent trapped fluid between the two closure elements in order to safely isolate the downstream pipe. This feature can be achieved with one single valve complete with a bleed port between the obturators.

Standards
API6D, ASME B16.34, NACE MR0175, API 6FA/API 607/API 598

Product Range
Size Range: 2"-24" (DN50-DN600)
Pressure Rating: ASME CLASS 150-2500 (PN16-PN420)
Body Material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, etc.
End Connection: FLAN (RF, RTJ), etc.
Operation: Manual, Pneumatic, Electric, Hydraulic, etc.

Suitable Applications
Double block and bleed valves are most commonly used in the oil and gas industry, but can also be helpful in many other industries. It’s typically used where bleeding the valve cavity is required, where piping needs isolation for maintenance, or for any of these other scenarios:
-Prevent product contamination
-Remove equipment from service for cleaning or repair
-Meter calibration
-Liquid service near waterways or municipalities
-Transmission and storage
-Chemical injection and sampling
-Isolate instrumentation such as pressure indicators and lever gauges
-Primary process steam

Features & Benefits
-Initial and installation cost saving owing to reduced structural requirements of design that saves both space and weight.
-Increased system reliability from single valve with bleed port between two valves
-Improved plant and personnel safety due to anti-blowout stem, fire-safe construction and anti-static design.

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Delivery, Payment and Service
Payment Terms: Normally 30% down payment before production, 70% balance before delivery.
Warranty: 12 months after installation or 18 months after shipment whichever comes first.
Delivery time: Subject to stock availability at placement or order and factory workloads.
Delivery method: By Express, or by air, or by sea, as your request.
Delivery port: Shanghai or as your request.

FAQ
Q: What is the warranty of this product?
A: Standard warranty is 18 months from the date of shipment or 12 months after installation, whichever occurs first.

Q: What to look for when selecting a double block and bleed valve?
A: As with any valve, during selection, one should consider the fluid properties, pressure, temperature. Perhaps most importantly, however, is how the valve will be used. With a number of configurations offered, consider which of these will fit your process and needs best.