Crane introduces Saunders range
Crane Process Flow Technologies has introduced the Saunders aseptic forged diaphragm valves in a material that meets ASME BPE – American Society of Mechanical Engineers Bioprocessing Equipment – standards.
Available in stainless steel 316L/1.4435, with a sulphur content of 0.005 to 0.017 (max) as per ASME BPE table DT-3, the valves are said to offer a number of benefits, including cost savings as the weld end bodies feature sufficient tangent lengths to accommodate orbital weld equipment without the addition of costly tube end extensions. They are also said to be easy to install – butt weld ends with metallurgy consistent with the sulphur levels of ASME BPE compliant tube and fittings reduce the risk of weld arc deflection and simplify set up parameters during orbital welding. The elimination of tube end extensions also results in shorter end-to-end dimensions and no fabrication welds are necessary to produce an "installation ready" autoweld valve. Crane says this reduction in the number of overall system welds substantially reduces both the valve cost and cost of installation, simplifies certification requirements and eliminates weak points. Crane has also introduced a 425 grade of EPM diaphragm from Saunders, which it says is suitable for intermittent and continuous steam, fermentation media, dilute acids and alkalis. A compact stainless steel, autoclavable, switchbox from Saunders is also now available. The company says it is easy to set, complete with both microswitch and proximity sensor options and with various cable entries. Sizes covered include DN8mm - DN50mm, and are suitable for temperatures from -20°C to +150°C.