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OMEGA FST323SPST Gas Flow Switch

The FST-323-SPST thermal dispersion flow switch effectively monitors gas flow velocities from 1 to 90 fps, ideal for small piping and large ducts. Designed for use with gases, it features a polypropylene and PVDF construction for durability under various pressure and temperature conditions. With a response time of approximately 10 seconds after warm-up, it provides reliable control signals via a standard SPST relay. Suitable for fluid temperatures up to 60°C and maximum pressure of 150 psi at 25°C, the switch ensures precision in critical gas flow applications.

Authorized Distributors
Source:DigiKey
Part No:FST-323-SPST
Stock:0
Inv Date:06-12-2026
Price: Unit price: $467.33
Buy/RFQ:

OMEGA FST323SPST Gas Flow Switch Specifications:

  • Range: 1 to 90 fps
  • Accuracy: +5% of setpoint at constant temperature and flow rate
  • Response Time: 10 sec after 30 sec warm-up
  • Set Point Drift: 0.5% per °C
  • Voltage Input: 12 to 36 Vdc @ 70 mA
  • Contact Output: NO or NC states
  • Fluid Temp. Rating: 0 to 60°C (32 to 140°F)
  • Maximum Fluid Pressure: 150 psi @ 25°C, derated at 1.667 psi per °C above 25°C
  • Contact Material: Polypropylene with PVDF
  • Cable Length: 3 m (10') (standard), up to 15.24 m (50') optional
  • Dimensions: 76.2 or 114.3 x 26.7 mm (3.0 or 4.5 x 1.05 inches), 44 NPT threaded connection

Buy the Omega Series FST Gas Flow: FST-323 SPST

Experience reliable gas flow monitoring with the Omega FST-323-SPST thermal dispersion flow switch. Designed for accuracy from 1 to 90 fps, it features polypropylene and PVDF components that withstand high pressures and temperatures. The switch provides an SPST relay output ideal for control systems, with quick response times after warm-up. Its robust construction makes it suitable for applications in small pipelines and large ducts, ensuring your gas flow control is precise, efficient, and dependable. Purchase online now for seamless integration into your process control system.

Get Omega FST-323-SPST today—built for precise gas flow measurement and long-lasting durability.

Frequently Asked Questions

Where can I buy OMEGA FST323SPST?

You can click on the BUY or RFQ button to purchase FST323SPST from an authorized OMEGA distributor.

How do I troubleshoot issues or seek technical support for part FST323SPST?

You can download the FST323SPST datasheet or visit the OMEGA website for support.

Who is the manufacturer of FST323SPST?

OMEGA

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