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GEMS SENSORS Adjustable Set Point Flow Switch - Adjustable Set Point Flow Switches
GEMS SENSORSAdjustable Set Point Flow Switches

GEMS SENSORS Adjustable Set Point Flow Switch

The GEMS SENSORS Air Flow Switch: Piston is an adjustable set point flow switch with a brass body and 1/2 in FNPT connection. It features a normally closed SPDT switch with a DC contact rating of 20 V and is suitable…

SKU 3G-OTH-89478

Also listed as: FS1079825365 · FS 10798 25365 · FS-10798-25365

Brand
GEMS SENSORS
Item
Adjustable Set Point Flow Switch
Category
Adjustable Set Point Flow Switches
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-10798, 25365
Type
Brass, FNPT, SPDT, Adj
FNPT
1/2 in
Set Point Type
Adjustable
Connection Size
1/2 in
Switch Position
Normally Closed
Contact Rating (DC)
20 V
Hazardous Location Specification
Class I, Div 2, Group A, B, C, D

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GEMS SENSORS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GEMS SENSORS Air Flow Switch: Piston is an adjustable set point flow switch with a brass body and 1/2 in FNPT connection. It features a normally closed SPDT switch with a DC contact rating of 20 V and is suitable for hazardous locations rated Class I, Div 2, Groups A, B, C, D. The manufacturer part numbers are FS-10798 and 25365.

Frequently Asked Questions

What is the GEMS SENSORS FS-10798 air flow switch used for?

The GEMS SENSORS FS-10798 air flow switch detects air flow in ducts or pipes to control ventilation, HVAC, or process systems. Its adjustable set point and hazardous location rating (Class I, Div 2, Groups A, B, C, D) make it suitable for industrial environments where flammable gases or vapors may be present.

What are the specifications of the GEMS SENSORS 25365 flow switch?

The GEMS SENSORS 25365 flow switch has a brass body with 1/2 in FNPT connection, a piston mechanism, and an adjustable set point. It features a normally closed SPDT switch with a DC contact rating of 20 V. It is rated for hazardous locations: Class I, Div 2, Groups A, B, C, D.

Where to buy GEMS SENSORS flow switches worldwide?

3G Electric supplies GEMS SENSORS flow switches worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the FS-10798 or 25365 models.

How to install a GEMS SENSORS piston flow switch?

Install the GEMS SENSORS piston flow switch in a horizontal pipe section with the arrow on the body aligned with flow direction. Use thread sealant on the 1/2 in FNPT connection. Wire the normally closed SPDT switch per your control circuit, ensuring the DC contact rating of 20 V is not exceeded.

Used in

Common applications for GEMS SENSORS
Burner management — GEMS SENSORS FS-4 piston flow switch for monitoring cooling water flow in industrial burners
Pump protection — GEMS SENSORS FS-380 high-pressure flow switch to detect loss of flow in pump systems
Process control — GEMS SENSORS 230500 thermal-dispersion flow switch for low-flow detection in chemical processes
Cooling systems — GEMS SENSORS RFS flow sight with remote output for visual and electrical flow indication in heat exchangers
Water treatment — GEMS SENSORS FT-110 turbine flow sensor for measuring flow rates in filtration systems
Hydraulic systems — GEMS SENSORS FS-500 polypropylene piston flow switch for corrosive fluid monitoring in hydraulic circuits

GEMS SENSORS Products

3G Electric supplies GEMS SENSORS adjustable set point flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPDT (MPN FS-926, 26941)
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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPDT (MPN FS-926, 26941)
This low-flow piston flow switch features a brass body with 1/4 in FNPT connections and a fixed set point. It has a SPDT switch with normally open position rated at 20 V DC. Suitable for hazardous locations classified as Class I, Div 2, Groups A, B, C, D. Used to detect liquid flow in industrial piping systems
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This low-flow piston flow switch features a brass body with 1/4 in FNPT connections and a fixed set point. It has a SPDT switch with normally open position rated at 20 V DC. Suitable for hazardous locations classified as Class I, Div 2, Groups A, B, C, D. Used to detect liquid flow in industrial piping systems
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPDT (MPN FS-926, 26951)
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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPDT (MPN FS-926, 26951)
Low-flow piston flow switch with fixed set point and normally open SPDT switch. Brass body with 1/4 in FNPT connection. Rated 20 V DC. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used to detect liquid flow in industrial piping systems
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Low-flow piston flow switch with fixed set point and normally open SPDT switch. Brass body with 1/4 in FNPT connection. Rated 20 V DC. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used to detect liquid flow in industrial piping systems

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Piston-type liquid flow switch with adjustable set point for detecting flow or no-flow conditions in piping systems. Constructed with 316 stainless steel body and 1/2 in FNPT connection. Switch position is normally closed with 20 V DC contact rating. Suitable for hazardous locations rated Class I, Div 2, Groups A, B, C, D
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Piston-type liquid flow switch with adjustable set point for detecting flow or no-flow conditions in piping systems. Constructed with 316 stainless steel body and 1/2 in FNPT connection. Switch position is normally closed with 20 V DC contact rating. Suitable for hazardous locations rated Class I, Div 2, Groups A, B, C, D
Bronze adjustable set point flow switch with 3/4 in FNPT connection and SPDT switching. Normally open switch position with 20 V DC contact rating. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used for flow detection and control in industrial piping systems
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Bronze adjustable set point flow switch with 3/4 in FNPT connection and SPDT switching. Normally open switch position with 20 V DC contact rating. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used for flow detection and control in industrial piping systems
Piston-type liquid flow switch with bronze body and 1 in FNPT connections. Adjustable set point with normally closed SPDT switch rated 20 V DC. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used to detect flow or no-flow conditions in industrial piping systems
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Piston-type liquid flow switch with bronze body and 1 in FNPT connections. Adjustable set point with normally closed SPDT switch rated 20 V DC. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used to detect flow or no-flow conditions in industrial piping systems
Piston-type liquid flow switch with bronze body and 3/4 in FNPT connections. Adjustable set point, normally closed SPDT switch rated 20 V DC. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used to detect and control liquid flow in industrial piping systems
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Piston-type liquid flow switch with bronze body and 3/4 in FNPT connections. Adjustable set point, normally closed SPDT switch rated 20 V DC. Suitable for hazardous locations Class I, Div 2, Groups A, B, C, D. Used to detect and control liquid flow in industrial piping systems
GEMS SENSORS Liquid Flow Switch: Piston, Bronze, 3/4 in FNPT, 3/4 in Connection Size, FNPT, SPDT (MPN FS-400, 26600)
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GEMS SENSORS Air Flow Switch: Piston, 316 Stainless Steel, 1/2 in FNPT, 1/2 in Connection Size, FNPT (MPN FS-10798, 25366)
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GEMS SENSORS Liquid Flow Switch: Piston, Bronze, 1 in FNPT, 1 in Connection Size, FNPT, SPDT, Adj (MPN FS-200, 26838)
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