Established in 2003, Franklin Valve is a privately held and financially stable company located in Houston that manufactures the DuraSeal Double Block and Bleed Plug valve. We place the highest value on product quality and customer service and are committed to positioning Franklins DuraSeal as the premier DBB valve on the market. For a number of reasons, our valve is a viable alternative to the Camerons General TwinSeal DBB. The DuraSeal DBB is patterned after the industry proven General TwinSeal series 800 design and internals are interchangeable. Due to our design, we also offer and have the unique ability to completely rebuild an existing General TwinSeal Series 800 with Franklin internal parts. As you are aware, Cameron offers 3 different designs of the GTS DBB. The TruSeal design (series 200), GTS 8800 (value engineered series 800) & GTS 800 in varying sizes and pressure classes with zero interchangeability between the three different designs. Franklin Valve manufactures and inventories: 2"-30" Class 150, 2"-24" Class 300 and 2"-20" Class 600 and well as component parts. Bottom line is our serviceability is what sets Franklin apart from General TwinSeal and other DBB manufacturers; same product, better service. Franklin Valve is globally represented & distributed and accepted with a number of high profile end users and Original Equipment Manufacturers.