Features and Advantages:

• Diaphragm Seal, instrument isolator, Gauge Guard...no matter what you prefer to call it, this device provides an excellent and important protective barrier between process fluid and the pressure/vacuum gauge or instrument.
• Increase product reliability and reduce system downtime caused by failure of instruments not protected by seals.
• Exceptionally low unit cost - now makes it feasible to protect even moderate priced instruments.
• Compact size makes these isolators ideal for limited-space installations.
• Liquid pressures to 200 PSI with ±4% accuracy. Choice of Buna-N or FKM (Viton) seal will handle most applications.
• Use with gauges, transducers, and pressure switches.
• Simple to fill and install.
• Hermetically-sealed uni-body construction - molded body avoids possibility of dangerous leaks.
• For use with highly aggressive or ultra-pure liquids.
• Diaphragm safety - If the gauge or instrument fractures or is removed from the guard while the system is pressurized, the diaphragm will automatically seal against leakage to the atmosphere.
• Polypropylene bodies for excellent chemical compatibility and temperatures to 185° F (85° C). The upper half (instrument side) is glass-filled polypropylene; the lower half (process side) is 100% natural, unpigmented virgin polypropylene.