PLAST-O-MATIC GGS Gauge Guards

Descriptions of PLAST-O-MATIC GGS

These chemical gauge guards should be utilized 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 demineralized water, sulphuric acid, hydrochloric acid, and caustics. Use caution with chlorine applications and consult factory for recommendations. Plast-O-Matic gauge guards offer the added advantage of protection against clogging of instruments caused by suspended solids or highly viscous fluids. Plast-O-Matic gauge guards are available with or without gauges.

OPERATION:

• A Plast-O-Matic gauge guard assembled with a pressure or vacuum instrument must be solidly filled with a suitable fill liquid.
• The gauge guard diaphragm is a flexible barrier that prevents the process fluid from entering the instrument. Pressure on the process side of the diaphragm flexes it against the fill liquid transmitting the pressure to the instrument.
• Conversely, vacuum causes the diaphragm to flex in the opposite direction creating an equal vacuum in the fill liquid which actuates the instrument.

Technical specifications of PLAST-O-MATIC GGS

•  Stainless steel hex insert eliminates breakage due to overtightening.
•  No exposed top metal fasteners
•  Highest pressure rating.
• Offers an inexpensive initial investment.
•  Reduces instrument failures.
•  Reduces system down time.
•  Eliminates the expense and extended delivery of special alloy instruments.
•  Offers a choice of select plastic materials to assure maximum chemical and temperature compatibility.

MATERIALS OF CONSTRUCTION:

• Gauge Guard housings are molded of Grade 1, Type 1, Geon PVC, Corzan CPVC, Natural Polypropylene, Glass-filled Polypropylene, or KynarPVDF. All materials are available with optional acrylic shields.
• PTFE diaphragms are standard with all assemblies using gauges of 0-30 PSI and greater. For 0-15 PSI and vacuum gauges FKM elastomer diaphragms are used.
• Non-wetted parts: O-ring seals are buna-N, fasteners and 1⁄4″ instrument connections are stainless steel. 1⁄2″ instrument connections are direct to upper housing material.
• Standard Plast-O-Matic gauges have 304 stainless steel cases. Dials are aluminum with black markings on white backgrounds.