GEMÜ has developed two completely new pneumatically operated globe valves, GEMÜ 530 and 534 with a stainless steel and a plastic piston actuator respectively.
The two new valve types use the same bodies and are available in nominal sizes DN 15-50. The valve bodies are made of 1.4408 cast stainless steel and GGG 40.3 S.G. iron. The new desigen resulted in considerable material and weight saving whilst offering the same stability. The cv values have also been improved by up to 40% compared to existing valve type 512. The maximum operating pressure for sizes DN 15 – 40 is 25 bar, for DN 50 16 bar. The standard version can be used up to 180°C. The new PTFE gland packing for type 530 is steam resistant and suitable for vacuum applications as standard.
Versions for higher temperatures and with other seals are available on request.
The stainless steel actuator is particularly suitable for applications in a chemically corrosive environment.
All nominal sizes can be equipped with regulating cones for flow control. The valves can then be used as control valves in combination with GEMÜ positioners and process controllers. An extensive range of accessories and instrumentation leaves hardly anything to be desired even in fully automated plants. The new valves have an excellent price/performance ratio and are available from now.
