Plast-O-Matic Valves, Inc. has developed an all-thermoplastic, compact gauge guard for corrosive liquids. Series GGME is a compact high seal that isolates gauges and other instruments from a chemical process. Ideal for space-limited applications, the Series GGME is a ultrasonically-welded, uni-body construction with a natural polypropylene connection on the process side. This design prevents dangerous leaks and precludes rupture of the diaphragm seal even if the gauge is accidentally removed.