dOUBLE BLOCK AND BLEED VALVES
The Alco Hi-Tek range of Double Block and Bleed valves offer reliability and efficiency for the most demanding of applications. Available in both ASME and API ratings these valves are offered in metal and soft seated options with superior bubble tight sealing capabilities at high pressures and temperatures. The valves are designed and tested to the latest ASME and API design codes with full manufacturing traceability in accordance with BS EN 10204 3.1 or 3.2 certification.
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10mm Bore DMF Monoflange Flange x Flange Valve
Double Block and Bleed, Needle Needle Needle configuration, monoflange valve with flanged inlet & outlet, utilising metal to metal seat and bonnet to body connection for superior, bubble tight sealing capabilities at both extreme pressures and temperatures.
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10mm Bore SMF Monoflange Flange x Screw Valve
Double Block and Bleed, Needle Needle Needle configuration, monoflange valve with flanged inlet, and threaded outlet and vent connections utilising metal to metal seat and bonnet to body connection for superior, bubble tight sealing capabilities at both extreme pressures and temperatures.
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13mm XC DBB Valve
The XC Double Block and Bleed valve is based on standard Ball, Needle, Ball configuration with a 1/2″ NPT screwed vent (plugged). Available from 1/2″ to 3″ in size and pressure class from 150lbs to class 2500lbs available in 3 standard materials.
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19mm XC DBB Valve
The XC Double Block and Bleed valve is based on standard Ball, Needle, Ball configuration with a 1/2″ NPT screwed vent (plugged). Available from 3/4″ to 3″ in size and pressure class from 150lbs to class 2500lbs available in 3 standard materials.
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25mm XC DBB Valve
The XC Double Block and Bleed valve is based on standard Ball, Needle, Ball configuration with a 1/2″ NPT screwed vent (plugged). Available from 1″ to 3″ in size and pressure class from 150lbs to class 2500lbs available in 3 standard materials.
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38mm XC DBB Valve
The XC Double Block and Bleed valve is based on standard Ball, Needle, Ball configuration with a 1/2″ NPT screwed vent (plugged). Available from 1.1/2″ to 3″ in size and pressure class from 150lbs to class 2500lbs available in 3 standard materials.
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50mm XC DBB Valve
The XC Double Block and Bleed valve is based on standard Ball, Needle, Ball configuration with a 1/2″ NPT screwed vent (plugged). Available from 2″ to 3″ in size and pressure class from 150lbs to class 2500lbs available in 3 standard materials.
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5mm Bore DMF Monoflange Flange x Flange Valve
Double Block and Bleed Needle Needle Needle configuration monoflange valve with flanged inlet and outlet and threaded vent, utilising metal to metal seat and bonnet to body connection for superior, bubble tight sealing capabilities at both extreme pressures and temperatures.
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5mm Bore SMF Monoflange Flange x Screw Valve
Double Block and Bleed, Needle Needle Needle configuration, monoflange valve with flanged inlet, with threaded outlet and vent connections utilising metal to metal seat and bonnet to body connection for superior, bubble tight sealing capabilities at both extreme pressures and temperatures
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