Gauge Guards are an economical way to protect instruments from corrosion and clogging -- or to protect your process from the instrument.

Plast-O-Matic True Blue Brand Gauge Guards maintain high accuracy, and assure system dependability within an operational range of full vacuum to 200 PSI.

• Offers an inexpensive initial investment.
• Reduces instrument failures.
• Reduces system downtime.
• Eliminates the expense of special alloy instruments.
• Choice of various thermoplastic materials assures maximum process compatibility.
• Every single Gauge Guard is individually inspected and hand tested.

Gauge Guards are used to isolate and protect pressure or vacuum instruments used on ultra-pure or highly-corrosive fluid lines. They can be confidently used with liquids such as deionized water (GGMU) sulphuric acid, hydrochloric acid, caustics...or with gasses such as corrosive air, ammonia...whenever such fluids will corrode metal instrument components. Gauge Guards also protect against clogging of instruments by suspended solids or highly viscous fluids. Furthermore, they eliminate dead pocket areas within instruments where chemicals or organic matter could decompose. All True Blue Gauge Guards are available with or without gauges.

Please scroll down for descriptions and links for specific types of Gauge Guards...

Series GGM -- True Blue Gauge Guards -- 1/2" process connection with 1/4" or 1/2" instrument connection. PTFE or Viton diaphragm; PVC, glass-filled polypropylene, Kynar PVDF bodies available. With or without gauges. Pressure rating from full vacuum to 200 PSI. Options include center mount gauges, acrylic shield, vibration snubber.

Series GGME -- Miniature Gauge Guards -- Polypro body, Buna-nitrile or Viton diaphragm. 1/2" male process connection, 1/4" female instrument connection. Available with or without gauges; rated full vacuum through 200 PSI. Optional 1/4" female process connection also available.

Series GGMU -- Ultra-Pure Gauge Guards with Spigot End Connectors -- Zero dead-leg design with EPDM or Viton sleeve; ultra-pure connection via natural polypro, Kynar PVDF, or PVC. Pipe sizes 1/2", 3/4", 1", 1-1/2", and 2". Rated full vacuum (Gauge Guard MUST be solidly filled to function properly with process vacuum) through 200 PSI.

Acrylic Shields for Series GGM -- This is a .PDF file that gives complete specifications for this optional feature, available only for series GGM with standard gauge.

Additional Gauge/Gauge Guard Products & Accessories: Links to be added for additional accessories. All of this information is currently available by fax or by mail; please click here for an easy request form.

Optional Cleanroom procedure available for all Plast-O-Matic Products; may be of particular interest to Series GGMU users.

Online Pressure Drop Calculator -- Allows you to easily determine the probable pressure drop across a valve. Note: For comparison and illustrative purposes only; not to be relied on for system design.

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Kynar® is a registered trademark of Elf Atochem., Corzan® is a trademark of B.F. Goodrich

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