Focus on Valves

New radial diaphragm valves improve ‘cleanability’ A single-body valve design with boreline seal that minimizes entrapment areas is responsible for the ease of cleaning. The DR Series of valves (photo) is designed for sterile flow streams in media preparation, fermentation, separation, petroleum refining, purification and other applications. The valves can be manufactured in a variety of configurations and sizes from ½ to 2 in. Made of 316L stainless steel with modified PTFE wetted single-piece diaphragms, the valves can accommodate system pressures of up to 150 psig and operating temperatures up to 137°C. Also offered are stream selection valves to deliver samples to a single analyzer. The SSV Series houses double-block, bleed and actuation functions within a single compact module. — Swagelok Co., Solon, Ohio www.swagelok.com Achieve lower air leakage with these rotary valves Newly designed rotary valves for pneumatic conveying of granular products feature expanded tips at the ends of rotor blades to reduce air leakage. The valves have an increased number of blades, as well as redesigned air vents to help minimize leakage and optimize venting. The new rotary valves are available for medium (22 psi) to…