Dwyer Instruments DAF-7081-153-9K Pressure Switch

The Dwyer Instruments DAF-7081-153-9K is a commercial-grade bourdon tube pressure switch engineered for high-accuracy monitoring in HVACR and industrial process control. Utilizing a 316 stainless steel tube material and a rugged steel pressure connection, this unit is built to withstand corrosive media while maintaining repeatability within ±1% of the full operating range. With a functional 10 to 300 psig range, it provides reliable SPDT (Single-Pole Double-Throw) snap-action switching for critical safety and control loops. The 9-64 circuit configuration and vertical mount design allow for seamless integration into existing manifolds. As an FM approved pressure switch, it meets rigorous standards for hazardous location performance. The external setpoint adjustment and visible calibrated dial enable field technicians to verify and adjust trip points without exposing internal electrical connections to the environment, ensuring long-term stability in demanding mechanical plant rooms.

Key Benefits

• Corrosion Resistance: The 316 stainless steel wetted parts ensure compatibility with a wide variety of process gases and liquids.
• Precision Control: High-sensitivity 10-300 psig range with excellent repeatability for mission-critical HVAC applications.
• Ease of Maintenance: Features a visible dial and external thumbscrew adjustment for fast, non-interactive setpoint configuration.
• Safety Certified: FM approved and UL listed, making it suitable for protected industrial environments.
• Rugged Housing: The standard enclosure with a bottom connection is designed for durability in industrial pressure switch applications.

Common Questions

What is the maximum temperature limit for this switch?
The DAF series generally operates within a temperature limit of up to 180°F (82°C). Always verify that the process media does not exceed this rating to prevent damage to the bourdon tube.

Does this model allow for field adjustment of the deadband?
The DAF models typically feature two external adjustments, allowing the technician to set both the high-pressure operating point and the reset point, effectively making the deadband adjustable over the full scale.

Can this pressure switch be mounted in any orientation?
To maintain the specified accuracy and functionality of the internal calibrated dial, this unit must be installed in a vertical mount position.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

DAF-7081-153-9K is the cross of DAF-81-153-9K (NON MERCURY EQUIVELANT)