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
Specifications:
- 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