FM64 Piston Type Differential Pressure Gauge

The FM64 Piston Type Differential Pressure Gauge (DPG) is a robust and high-performance instrument designed for accurate measurement of pressure difference in industrial systems. Utilizing a piston-based sensing mechanism, it ensures stable and reliable readings even under high static pressure conditions, making it ideal for demanding process applications.

Engineered with high-grade materials such as SS 316 / Monel / Hastelloy, the FM64 offers excellent resistance to corrosion and harsh media. Its rugged die-cast aluminum enclosure with weatherproof (IP65) or explosion-proof options ensures safe operation in challenging environments, including hazardous areas.

With high accuracy up to ±0.5% of full scale, adjustable set points, and multiple switch configurations, this differential pressure gauge is widely used for monitoring filters, pumps, flow systems, and critical process parameters in industries like oil & gas, chemical processing, power plants, and water treatment.

Key Features

• ✔ High accuracy up to ±0.5% of full scale
• ✔ Piston sensing element for stable differential pressure measurement
• ✔ Suitable for high static pressure applications
• ✔ Corrosion-resistant materials (SS 316 / Monel / Hastelloy)
• ✔ Weatherproof (IP65) / Explosion-proof (Ex d) enclosure options
• ✔ Adjustable set point (20% – 80% of range)
• ✔ Multiple switch options (SPDT / DPDT)
• ✔ Reliable performance in harsh industrial conditions

Technical Specifications

• Model: FM64
• Type: Piston Type Differential Pressure Gauge
• Accuracy: ±0.5% of full scale (±1.0% optional)
• Range (ΔP): 25 mbar up to 25 bar
• Sensor Material: SS 316 / Monel / Hastelloy C-276
• Enclosure: Die-cast aluminum, IP65 / Explosion-proof (Ex d IIA IIB IIC T6)
• Switch Type: 1 SPDT / 2 SPDT / 1 DPDT
• Switch Rating: 15A / 250VAC or 0.5A / 25VDC
• Set Point: Adjustable from 20% to 80% of scale
• Mounting: 2” pipe mounting bracket (optional)
• Cable Entry: Suitable cable glands

Applications

• Filter monitoring systems
• Pump and compressor protection
• Flow measurement systems
• Oil & Gas processing units
• Chemical plants
• Power generation systems
• Water & wastewater treatment

Optional Features

• Explosion-proof enclosure
• Custom pressure ranges
• Special wetted materials
• Additional switching options
• Mounting accessories