Process Measurement and Analysis Ltd (PMA)

Belfield- Decantation/Drain Valve

PMA has appointed Dawcul Ltd to market the Belfield valve overseas.

The Belfield valve can be used for practically any decanting operations within the limits of its capacity, pressure and temperature parameters.

The Belfield valve has been acclaimed, the easiest, most efficient way to decant and recover a wide variety of liquids possessing different specific gravities! It is automatic, extremely sensitive, versatile and provides users with a proven method for decanting or separating the heavier of two liquids. It also eliminates the many problems which occur during manual decanting of one phase in a wide range of multiphase systems including:

• Loss of product due to human error, especially where little or no colour variation exists between phases.
• Detects and retains or rejects valuable interface materials containing recoverable products.
• Serves as a safety device on effluent discharge systems reducing and/or eliminating pollution problems.
• Requires minimal attention, service and maintenance thereby reducing labour costs drastically.
• Standard body materials of construction are either carbon steel or stainless steel, in both cases the internals are constructed from stainless steel.

The valve is used to decant water from crude storage tanks, final product tanks and any application where an in-vessel separation occurs. They are often used on floating roof drains to protect the roof drain joints from leaking into the bunds-surface water collection systems. The valves are manufactured to ISO9000 specifications and finished in an epoxy coating.

Specific Industry Applications:

• Petroleum
• Chemical
• Pharmaceutical
• Environmental Protection

Operation

The operation of the valve is based on the simple principle of differential specific gravity. One phase is discharged through the internal Float Seat. A change of specific gravity automatically closes the valve, the Float Valve. The side run off permits discharge of the second phase, together with any deliberately retained interface material. Test results show the Belfield Valve is capable of detecting variations in specific gravity of 5% on average, and in favourable circumstances greater accuracies are possible.

The Belfield is increasingly in demand for environmental protection

The Belfield valve is increasingly in demand on Environmental Protection Grounds. Throughout all industries where “Waste Water” is decanted from process or storage vessels tote Effluent Treatment Plant, the Belfield Valve is applied as an environmental protection device to minimise the possibility of accidental discharge of oil, solvents or chemicals into Final Effluent Treatment Plant.

For more product specification information, please download the PMA data sheet.

Dawcul is a Trusted Distributor for Process Measurement and Analysis Ltd

For expert advice on procurement, logistics and installation talk to one of our local experts across Eastern Europe.