Perma-Cal Direct Drive 4 1/2" Process Gauges

The advantage of Perma-Cal Direct Drive pressure gauges over conventional C-tube gauges is simple; only one moving part.  Perma-Cal gauges have a unique helical-wound element that is attached directly to the pointer shaft.  This eliminates the need for any movement-amplifying gears or linkages - the parts of a C tube gauge that fail most frequently.  Perma-Cal gauges maintain their structural integrity and accurate calibration in the most demanding environments, even during prolonged and rugged use.

• Field convertible from no flange configuration to front or rear flange
• Ambient temperatures to 435F (225 C)
• No gears or linkages to lubricate
• Internally dampened with a small application of heavy silicone grease on the one moving part, which eliminates pointer flutter
• High repeatability
• Longer life than liquid filled gauges
• Highly durable, reliable and accurate
• Accuracy, 1% Full Scale, ½% Mid Scale
• Overpressure without calibration shift, 150% of FS pressure
• Burst pressure +500% of FS
• Wetted parts, Inconel X-750 element, 316 SS stem, 304SS capillary

• 4 1/2" Standard Process Gauge
• 1% Accuracy Full Scale
• 0.5% Accuracy Mid Scale
• Pressure Ranges up to 15,000 PSI
• 1/4" NPT or 1/2" NPT
• Connection: Bottom or Rear
• Color: Black, Red, Blue, Yellow, White, Green
• Trim: Stainless Steel