Bi-Torq expands butterfly valve series to include flange connections
Bi-Torq Valve Automation has expanded its resilient seated BY series butterfly valves to include metric (DIN) flange connections.
The metric wafer style valves have a PN16 pressure rating (16 bar or 232 psi) and are offered in sizes 2" through 8" (DN 50 through DN 200). Materials of construction include a cast iron body with a stainless steel disc and stem. Seats are Buna N, which are great for aliphatic hydrocarbons (propane, butane, petroleum oil, mineral oil and grease, diesel fuel, fuel oils), vegetable oils, greases, and water applications. The valves were designed so that the body is fully encapsulated. This means the pipeline media will not come in contact the cast iron body. An additional benefit of the design is that it also eliminates the need for a flange gasket.
The butterfly valves can be used manually with a 10-position handle or automated. Actuators for automation include the company's BI series electric or PN series pneumatic actuators. Other options include spring return 'deadman' handles, custom tandem linkages, or gear operators.