Transamerica Delaval FS-930 51594

Description:

The Transamerica DeLaval FS-930 (Part Number 51594) is a piston-type liquid flow switch designed to monitor oil and other compatible liquid flow in industrial process and lubrication systems. Manufactured by GEMS Sensors, this model features a fixed flow set point of 0.75 GPM (2.84 L/min) and automatically compensates for viscosity changes over a wide operating range. Its rugged brass body and SPDT switch make it suitable for monitoring coolant, hydraulic oil, lubricating oil, water, and other compatible liquids in industrial equipment. The FS-930 is commonly installed in machine tools, pumps, compressors, cooling systems, lubrication circuits, robotics, and process equipment where reliable flow detection is required.

Applications:

The Transamerica DeLaval FS-930 51594 is designed to detect liquid flow and activate an electrical switch when the preset flow rate is reached. It is widely used in lubrication systems, hydraulic equipment, cooling circuits, semiconductor manufacturing equipment, industrial automation, water treatment systems, beverage processing equipment, and OEM machinery where dependable flow monitoring and equipment protection are essential.

Technical Specifications:

• Manufacturer Part Number (MPN): 51594
• Manufacturer: GEMS Sensors (Transamerica DeLaval)
• Series: FS-930
• Product Type: Piston-Type Liquid Flow Switch
• Flow Set Point: 0.75 GPM (2.84 L/min)
• Switching Type: SPDT Microswitch
• Contact Rating: 20 VA
• Port Size: 1/4 in NPT Female
• Body Material: Brass
• Maximum Operating Pressure: 1000 PSI (69 bar)
• Burst Pressure: 5000 PSI (345 bar)
• Operating Temperature Range: -29°C to +148.9°C (-20°F to +300°F)
• Repeatability: ±1% Maximum
• Set Point Accuracy: ±10%
• Viscosity Compensation Range: 40 to 2000 SSU
• Recommended Filtration: 50 Microns
• Electrical Connection: 24 in (610 mm) 18 AWG Lead Wires
• Wire Colors: Orange (NO), Black (Common), Red (NC)
• Mounting Position: Vertical (Lead Wires Up Recommended)
• Hazardous Location Approval: UL Class I, Division 2, Groups A, B, C, D (FM Explosion-Proof Version Available)
• Function: Liquid Flow Detection and Equipment Protection
• Compatible Components: Pumps, Hydraulic Systems, Lubrication Systems, Cooling Systems, PLCs, Industrial Controllers, and Process Automation Equipment

Common Replacements:

• GEMS Sensors FS-930 Series 51598 (1.0 GPM)
• GEMS Sensors FS-930 Series 51590 (0.5 GPM)
• GEMS Sensors FS-930 Series 51586 (0.25 GPM)