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Dwyer 1950 Pressure Switch

Dwyer 1950 Pressure Switch is a rugged, weatherproof differential pressure switch designed for reliable control and monitoring of air and compatible gases. It offers adjustable setpoints, fast response, and durable construction, making it ideal for HVAC, cleanroom, and industrial pressure control applications.

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Description

The Dwyer 1950 Pressure Switch is engineered to provide dependable switching action based on differential pressure changes. It utilizes a diaphragm-operated mechanism that activates a snap-action switch when the setpoint is reached, ensuring precise and repeatable performance. The setpoint is field-adjustable, allowing users to customize switching thresholds for specific applications such as airflow proving, filter monitoring, and fan status detection. Its compact design and versatile mounting options make it easy to install in both new and existing systems. The switch is suitable for air and non-combustible gases, providing consistent operation across a wide range of low-pressure applications.

In addition, the device features a weatherproof enclosure that protects internal components from dust, moisture, and harsh environmental conditions, making it suitable for both indoor and outdoor installations. It supports multiple electrical configurations, including SPDT contacts, for flexible integration with control systems. With reliable mechanical operation, minimal maintenance requirements, and long service life, the 1950 Pressure Switch is a trusted solution for critical pressure monitoring and control tasks in industrial and commercial systems.

QTech Safety is a leading supplier of Dwyer 1950 Pressure Switch in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Dwyer Instruments Pressure Switches from one of Ireland’s most trusted industrial safety equipment suppliers.

Features of Dwyer 1950 Pressure Switch

  • Differential pressure switching for air and gases
  • Adjustable setpoint for flexible operation
  • Snap-action switch mechanism for reliable performance
  • Rugged, weatherproof enclosure
  • Suitable for HVAC and industrial applications
  • Fast response and repeatable switching
  • Compact and easy to install
  • Compatible with control and alarm systems
  • Long service life with low maintenance

Technical Specifications of Dwyer 1950

  • Type: Differential pressure switch
  • Measurement range: Various ranges (e.g., 0.03–0.5 in. w.c. up to higher ranges)
  • Setpoint adjustment: Field adjustable
  • Accuracy: ±2% full scale (typical)
  • Operating temperature: -34 to 82 °C (-30 to 180 °F)
  • Media compatibility: Air and non-combustible, compatible gases
  • Maximum pressure: 10 psig (0.69 bar)
  • Electrical rating: SPDT switch (varies by model, e.g., 15 A @ 120–240 VAC)
  • Process connection: 1/8″ NPT female
  • Enclosure rating: Weatherproof (NEMA 4 equivalent)
  • Mounting: Surface or panel mount
  • Housing material: Aluminum or engineered plastic (model dependent)

Pressure Switches Part Number & Configuration Guide

Standard (Example) Part Number

1950-02-2B

This is a reference configuration for the Dwyer Instruments Pressure Switches. It represents one commonly supplied setup and helps customers understand how the part number is structured.

Configurable Part Number Format

1950-XX-XX

Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as Pressure Type, Connection Type, Pressure Range & Transmitter Output.

Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.

Applications

The Dwyer 1950 Pressure Switch is commonly used in industrial calibration and testing applications, including:

  • HVAC airflow proving and fan status monitoring
  • Air filter differential pressure monitoring
  • Cleanroom pressure control systems
  • Industrial ventilation systems
  • Alarm and safety interlock systems

Why Choose QTech Safety?

At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:

  • Comprehensive Range of Safety Equipment:
    From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices.
  • Test & Measurement Instruments You Can Trust:
    We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications.
  • Expert Health & Safety Training:
    We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job.
  • Fast, Reliable Delivery Worldwide:
    Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently.
  • Trusted by European Businesses:
    We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.

We Ship Worldwide

At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.

🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)