Dwyer Magnehelic Gauge w/ HP Option 0-30 PSI

• Easiest reading for personnel accustomed to dial type gauges.
• Lowest cost pointer type gauge.
• Easy zeroing with molded plastic vent valves.
• Sensitivity to 0.01 in. w.c.
• Withstands vibration.
• Unaffected by over range pressure surges. 

• Service: Air and non-combustible, compatible gases. (Natural Gas option available.)
• Wetted Materials: Consult factory.
• Housing:
  • Die cast aluminum case and bezel, with acrylic cover.
  • Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.
• Accuracy: ±2% of full scale (±3% on - 0 and ±4% on - 00 ranges), throughout range at 70°F (21.1°C).
• Pressure Limits:
  • -20˝ Hg. to 15 psig.† (-0.677 bar to 1.034 bar)
  • MP Option: 35 psig (2.41 bar)
  • HP Option: 80 psig (5.52 bar)
• Overpressure: Relief plug opens at approximately 25 psig (1.72 kPa), standard gauges only.
• Temperature Limits: 20 to 140°F.* (-6.67 to 60°C)
• Size: 4 in. (101.6 mm) diameter dial face
• Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
• Process Connections: 1/8 in. female NPT duplicate high and low pressure taps (one pair side and one pair back)
• Weight:
  • 1 lb. 2 oz. (510 g)
  • MP & HP: 2 lb. 2 oz. (963 g)

* Low temperature models available as special option.
† For applications with high cycle rate within gauge total pressure rating, higher rating is recommended. See Medium and High pressure options at lower left.