Franklin Expanding Plug Valves.
Where positive, proven isolation is essential, look no further than Franklin’s Duraseal™ Double Block and Bleed Expanding Plug valve. We are the UK’s only stockist and distributor for this field tested and trusted range of products. The Franklin Duraseal™ is the choice for applications requiring frequent, verifiable isolation and testing of liquids. The design of the Franklin Duraseal™ gives a mechanical seal on the upstream and downstream seat of the valve, which means the valve also incorporates a differential thermal relief valve or DTR.