Swagelok process interface valves enable a smooth transition from the process piping system to instrumentation in a single configuration, providing fewer potential leak points, lower installed weight, and a smaller space envelope.

Parker's double block and bleed valves are designed to reduce installation costs and improve safety performance. These compact units not only enable easy installation but they can also provide a seal against pressure from both ends of the valve.

世伟洛克 ® 工艺接口阀 (dbb) 世伟洛克工艺接口阀通过单一结构实现从工艺管路系统到仪表的平滑过渡，潜在泄漏点少、安装重量低、所需空间小。 索取更多信息

Double Block and Bleed isolation requires two in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two closure elements. Two independently operable ball valves for isolation service with an intermediate globe style needle valve for venting service. source. For sampling the reverse is applied.

Modular Double Block & Bleed (DBB) valves are engineered and manufactured to provide a compact and reliable alternative to multiple instrument valve systems, reducing leak paths and saving installations and maintenance costs.

The double block-and-bleed (DBB) Cameron GENERAL VALVE Twin Seal plug valve reduces this constant wear by using two seating slips mounted independently on a tapered plug by dovetails, which mechanically retract from the seating surface prior to rotating. This provides a bubble-tight verifiable dual seal without seal abrasion.

ROKE can offer the special combination of double block and bleed valve systems together with fittings, both being designed and produced by BMT. Choise of this combination results in the elimination of taper thread connections and the need for thread sealant. A welded flange, connected to a primary ANSI class isolating valve.

Vimec Valves Modular Double Block & Bleed Ball Valves are equipped with a drain needle, ball or DBB valve mounted between the two balls, this permits to drain the valve and reset the pressure to zero. The main characteristics of this design is double isolation with two independent balls in one valve body, guaranteeing positive shut off with ...

Franklin Valve is globally distributed & manufacturer of the DuraSeal DBB Plug Valve & the DuraSeal 4-Way Diverter Valve in Houston, Texas

DBB series valves are totally free of springs, bellows, packing, and lubricants in the process wetted area. Metal-to-metal seals to atmosphere to prevent transport of undesirable elements into the flow stream.