Plastic Valves and Flowmeters - GEMU - #19

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Plastic valves and flowmeters I Selection of diaphragms 19 Certifi cates and approvals FDA Compatibility with media Special features compliant USP Class VI EHEDG TA-Air O BAM Resistant to diff erent chemicals, inorganic strong acids, alkalis, salt solutions, ozone and weatherresistant. Not resistant to aromatic and chlorinated hydrocarbons. �œ Good resistance to mineral oils, greases, and petrol. Not suitable for oxidative media �œ Resistant to hydrocarbons and strong acids, aromatic solvents, ozone, chlorine in gas form and chlorinated solvents. Performs well at high temperatures. Not resistant to ketones and strong alkalis Particularly suitable for corrosive media, diluted acids, alkalis and saline solutions, ozoneresistant, particularly suitable for demineralised and deionised cold/hot water, inert and many other industrial gases. Unsuitable for oils and greases Weather-resistant, suitable for vacuum, low gas permeability, can be temporarily used for steam �œ �œ �œ �œ Resistant to nearly all chemicals, such as strong acids, alkalis and salts, also at high temperatures, steam, WFI as well as pharmaceuticals. Good resistance to solvents, chlorine, and aromatic hydrocarbons. Fully laminated diaphragm, can be used in steam. Low gas permeability. �œ �œ �œ �œ �œ Convex two-piece diaphragm with loose PTFE face for higher switching cycles, can be used for permanent steam application. Special compounding and production by GEMÜ. Special seal contour for external sealing on the bottom of the diaphragm. Low gas permeability. �œ �œ �œ See diaphragm 5E. FPM back with higher chemical resistance than EPDM back. We supply valves and diaphragms, which are free from substances that prevent paint adhesion (e.g. silicone) for applications in the surface fi nishing/painting industry. The shutoff diaphragms and valves are treated accordingly and packed individually in plastic bags. Furthermore, silicone-free lubricants are used during assembly. Packed diaphragms, without paint adhesion interfering substances.