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.