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  • Hazardous Rated
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    Calibration Services
    1. DEMO 1
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    Pressure
    1. DEMO 1
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    5. DEMO 5
    Air Quality
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    4. DEMO 4
    5. DEMO 5
    Air Velocity
    1. DEMO 1
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    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Flow
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Level
    1. DEMO 1
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    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Temperature
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    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Test Equipment
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Valves
    1. DEMO 1
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    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Miscellaneous
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    Hazardous Rated
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    Valves
    Valve products that have ratings for use in hazardous locations. Includes both valves and transmitters.
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    Temperature Transmitters
    Temperature Transmitters for hazardous temperature measurement applications. Applications include explosive process environments, offshore HVAC monitoring, and dust and grain handling.
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    Pressure Switches
    Dwyer pressure switches are explosion-proof, ATEX approved, weatherproof, compact and low cost. Applications include HVAC applications, process applications, all weather applications, and gas furnaces.
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    Flow
    Dwyer's flow products included in this category are compact and explosion-proof. They monitor liquid, gas, and air flows. Some applications are control dampers according to flow, signals alarm, shuts down burner, and protects pumps, motors, and other equipment against low or no flow.
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    Level
    Level products are for use in hazardous applications. The applications include water and wastewater, food and beverage, chemical processing, level control, and valve control. Some models are submersible.
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    Pressure Transmitters
    This category has a pressure transmitter that is a microprocessor-based high performance transmitter. Applications include water and wastewater, food and beverage, chemical and petrochemical, oil and gas. HART Communication.
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    Process Control
    Intrinsically safe barriers for hazardous locations are found amongst our Process Control instruments, along with hazardous rated solid state relays, hermetically sealed ice cube relays and intrinsically safe isolators.
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    Temperature Switches
    Temperature Switches are sensors with an electrical contact output at a specific temperature. Our Series 862E provides an explosion-proof, heavy-duty thermostat for hazardous-location temperature control.
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    Pressure Gages
    Pressure gages can indicate positive, negative or differential pressures and are accurate within 2%. They can also be purchased with a flame-proof ATEX enclosure.
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    • Most Popular
    • Questions
    • Videos

    Most Popular

    Series V6
    Series 1950
    Series 1950G
    Series PBLT2 & PBLTX

    Questions

    Question
    For which pressure switch applications are gold contacts recommended?
    Answer
    For "dry circuit" applications where little or no current is flowing in the circuit to help burn off contact dirt and oxidation. Switches used with solid state circuits often fall in this category.
    Related
    Series A7
    Series H3
    Series SA1100
    Series H2
    Series MDS
    Question
    Does Dwyer offer a fully UL/FM/CSA approved explosion proof pressure switch?
    Answer
    Yes. The 1950 and 1950G Series.
    Related
    Series 1950
    Series 1950G
    Question
    Can the standard H2 pressure switch be used with water?
    Answer
    No. The brass or SS housing must be specified for compatibility reasons. The aluminum housing can leak into the switch.
    Related
    Series H2
    Question
    What is the key feature of both Proximity position indicators and level switches that sets these products apart from all competitors?
    Answer
    Magnetic coupling.
    Related
    Series Mark
    Series PLS
    Question
    Hi-Flow™ control valves call out ANSI B16.104 Class IV flow leakage. What does this mean?
    Answer
    ANSI B16.104 is a testing specification for control valves. This specification has actually been superseded by ANSI/FCI 70-2 Class IV. The class IV designation defines the allowable amount of leakage through the valve seat in the closed position. Class IV allows for .01 percent of the rated flow (Cv), to pass through the seat. Class IV is common for metal to metal seated valves.
    Related
    Series 2000VA/3000WA

    Videos

    No Contact! When to Use Gold Contact Switches
    Pressure Sensor Accuracy
    Liquid in your Housing? How to Prevent Conduit Condensation
    What is Deadband? Switch Actuation & Deactuation
    Pressure Sensor Accuracy Overview
    RTD Temperature Sensors
    Mercoid Series FBLT & PBLT Submersible Level Transmitters
    Mercoid Series SBLT & MBLT Submersible Level Transmitters
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