Dwyer Instruments Inc.
Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development,
- 219/879-8000
- 219/872-9057
- lit@dwyer-inst.com
- P.O. Box 373, 102 Indiana Hwy. 212
Michigan City, IN 46361
United States of America
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product
Handheld Digital Manometer
475
The Dwyer Series 475 Mark III Handheld Digital Manometer is ideal for field calibration, monitoring or trouble shooting HVAC systems, clean rooms or a wide range of other low pressure pneumatic systems. This handy instrument measures positive, negative or differential pressures of air and natural gases in ranges from 1 in. w.c. (0.249 kPa) to 150 psid (10.34 bar).
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Stainless Steel Schaeffer Gage
SGO
The Series SGO Gages have dual English/metric scales with ±1.6% full scale accuracy. The Series SGO gages are designed with 304 SS housing, a 316L SS chamber and PTFE coated diaphragm for excellent chemical compatibility
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Diaphragm Operated Pressure Switch
1000E
Extremely rugged construction provides excellent reliability in chemical, petroleum and industrial plants. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. new design also provides high overpressure protection. Available with standard weatherproof housing to meet NEMA-1 through 4X and NEMA-13, JIC.
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Digital Pressure Gage
DPGA
The Series DPGA is the only economic digital pressure gage with selectable engineering units on the market. With its 1% accuracy and digital push-button zero, the DPGA is the perfect choice for digitally monitoring the pressures of air and compatible gases
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product
Diaphragm Seal for DA Series Pressure Switch
XTBX
The Series XTBX is a diaphragm seal constructed of PVC and FEP making it perfect for corrosive applications that would damage metal wetted material pressure switches. The seal is available direct mounted on all model DA pressure switches with ranges under 100 psi (6.9 bar). Ideal for commercial pool/spa applications for pump shut down due to excessive vacuum.
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product
Backflow Prevention Test Kit
BTK2
he Model BTK2 Backflow Prevention Test Kit is capable of testing hydronic systems with test procedures recommended by ASSE, AWWA, CSA, FCCC, HR-USV, and NEWWA. The BTK2 is comprised of three valves and is specially designed for testing backflow prevention assemblies. The tests can be completed in almost any area by mounting the unit with the included high performance elastic cord. PTFE-lined brass ball valves simplify the adjustment procedure. The large, easy-to-grip needle valve allows for quick adjustment.
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product
Differential Pressure Transmitter
607
Series 607 Differential Pressure Transmitter combines very low ranges with exceptional stability, reliability and either ±0.25% or ±0.5% accuracy for the most demanding applications. Ranges from 0-0.1" to 0-25" w.c
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product
Diaphragm Operated Pressure Switch
AP
Reliable and convenient, series AP pressure switch is a compact low cost switch for instrument air or other low pressure applications. Visible set point and external adjustment add convenience.
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product
Diaphragm Operated Dual-Action Pressure Switch
H2
Explosion-proof, UL & CSA Listed for Class I, Groups B, C & D and Class II, Groups E, F & G. The H2 is designed for sequencing two different actions as pressure of a liquid or gas increases or decreases. The patented design consists of two concentric pistons operated by a single diaphragm with one pressure chamber.
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Explosion-Proof Differential Pressure Switch
1950G
The Model 1950G Explosion-Proof Switch combines the best features of the popular Dwyer Series 1950 Pressure Switch with the benefit of natural gas compatibility. Units are rain-tight for outdoor installations, and are UL listed for use in Class I, Groups A, B, C, & D; Class II, Groups E, F, & G and Class III atmospheres, ATEX for EExd IIB & Hydrogen T6, and CSA & FM approved for Class I, Div. 1, Groups B, C, D; Class II, Div. 1, Groups E, F, G and Class III atmospheres
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product
Gas Differential Pressure Switch
A4
Rugged Series A4 Differential Pressure Switch offers field adjustments and can handle system pressures up to 6000 psig. Piston design allows mounting in any orientation. The switch is capable of carrying moderate shock and vibratory loads
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product
Thermocouple Calibrator
CA10
Dual function CA10 Thermocouple Calibrator can be used to source Type K thermocouple output values or measure Type K thermocouples. Quickly select output value using the rotary switch with coarse and fine adjustments.
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Magnesense Differential Pressure Transmitter
MS
The Series MS Magnesense Differential Pressure Transmitter is an extremely versatile transmitter for monitoring pressure and air velocity.
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Temperature Switch
DA-7035N
Series DA-7035N Temperature Switches include the same time-proven switching mechanism used in our Series DA Pressure Switches. Bourdon tube assures high sensitivity and long life.
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product
Solid Plastic Stationary Gage
200/300
Dwyer solid plastic stationary gages - or draft gages - are offered in inclined and vertical (well-type) styles for highly accurate laboratory or general industrial service, for measurement of low range gas and air pressures, positive, negative or differential.















