Indicate Positive, Negative or Differential, accurate within 2% full scale. 81 models models available. Typically used in line pressure under 35psi, with options can reach 80psi. If higher then 80psi see CAPSUHELIC Series 4000 for 500psi and less.

he Magnehelic gage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluid systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment. Note: May be used with Hydrogen. When ordering a Buna-N diaphragm pressures must be less than 35 psi.

Capsuhelic Differential Pressure Gages Gauges Measures Pressure, Vacuum or Differential, Suitable for Internal Pressures to 500 psig. See Details for Specifications/PDF. Designed to give fast, accurate indication of differential pressures. The gage may be used as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks and many other applications involving pressure, vacuum or differential pressure.

43000 Capsu-Photohelic Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage. The Capsu-Photohelic switch/gage employs an encapsulated sensing element for use with both liquids and gases at pressures to 500 psig (34 bar).

Optional cast brass case is available for water or based liquids.

Series 7000B Spirahelic® Direct Drive Pressure Gages/Gauges with turret mount housings feature a triple coil spiral/helical wound Bourdon tube to provide dependable service. Series 7000B gages come standard with a dual-size 1/2" male NPT and 1/4" female NPT process connection and 4-1/2" Turret Mount Gage, ASME Grades A and 2A

7112B Spirahelic® Direct Drive Pressure Gages 4-1/2" with Turret Mount housings feature a triple coil spiral/helical wound Bourdon tube to provide dependable service. Bourdon tube design eliminates gears, springs, linkages and complex movements which can wear and cause inaccuracy or early failure. Series 7000B gages come standard with a dual-size 1/2" male NPT and 1/4" female NPT process connection

All 316L SS with ASME Grade 2A Gage Dwyer Instruments 7112B Spirahelic® Direct Drive Pressure Gage is now available with a 316L SS diaphragm. These seals are also offered with an optional 1/4" NPT flush port which makes clean outs quick and easy. Service: Compatible gasses & liquids.

7112B Spirahelic Pressure Gage with Diaphragm Seal Pressure Gage with Diaphragm Seal All 316L SS with ASME Grade 2A Gage Service: Compatible gages & liquids.

Dwyer 7116 Spirahelic® Pressure Indicating Transmitter simultaneously provides local indication on a large, easily read 4-1/2" (114 mm) analog scale while also converting that pressure into a standard two, three, or four-wire, 4-20 mA signal.

761 Process Pressure Gages (LIQUID-FILLABLE) possess a dual English/metric scale with ±0.5% full scale accuracy. Click on Details for PDF. Application: Chemical, Refinery, Fertilizer, Petrochemical, Pharmaceutical, Power, Oil, Cement, Sugar, Food and Beverage, Pulp and Paper, and Waste Water.

Dwyer Instruments 762 Process Pressure Gages with GLYCERIN FILLED housing, ±1% Full Scale Accuracy, providing superior performance in applications where vibration, pulsation, mechanical shock, and pressure spikes are common. Dual English/metric scale.