EDITOR ’ S CHOICE
GEMÜ Lined Diaphragm Valves – Versatile Process Valves for Industrial Applications
GEMÜ lined diaphragm valves are the ideal process valves for industrial applications . The combination of robust body housing and durable plastics is preferable for corrosive , high temperature media and safetyrelevant systems . At GEMÜ the high-quality and robust lined diaphragm valves are developed using injection moulding via a central sprue from below the valve weir , preventing the plastic layer from detaching from the metal body under vacuum operating conditions . The metal / plastic material transition is designed at the pipe connections so that the plastic lining is fixed axially inside the pipe and no stress damage can occur as a result of thermal expansion . A temperature-resistant coating on the metal bodies prepared for injection provides a high level of corrosion protection for the metal surface even underneath the plastic layer . All of this goes hand in hand with offering the customer a superior product with peace of mind that the product is more than adequate for their application .
Tel : 01925 824044 Email : enquiries @ gemu . co . uk Web : www . gemu . co . uk
60 years of innovation brings you the green line valve
Muller Coax have developed a patented energy saving valve which can offer up to 80 % power saving on similar sized valves . The new green line series has been specially developed as an energy efficient series of solenoid valves . For this reason directly controlled standard valves from Muller coax has been paired with completely new patented control electronics within the terminal box .
The valve has an optical position indicator as standard on the terminal box for the open / closed position , the position indicator as also available as an electrical signal . Flanged or threaded from 15mm through to 40mm orifice and 100 bar rated the design in the electronic circuitry within the box allows :
• Different opening / closing speeds at the flick of a switch which helps to eliminate vibration and water hammer in the pipework .
• Holding voltage as low as 7.5 watts for the smaller 15mm valve reduces the power consumption when energised for long periods and the solenoid remains cold .
www . co-ax . com john . osborn @ coaxvalves . co . uk Tel 01908 067583 .
6 PECM Issue 50