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GEMS SENSORS FS-4 122353 General Purpose Piston Flow Switch - General Purpose Piston Flow Switches
GEMS SENSORSGeneral Purpose Piston Flow Switches

GEMS SENSORS FS-4 122353 General Purpose Piston Flow Switch

The GEMS SENSORS FS-4 122353 is a general purpose piston flow switch with a fixed set point and normally closed switch position. It features a PPS body with 9/16 in UNF connections and an SPDT contact rated at 20 V…

SKU 3G-OTH-89311

Also listed as: FS4122353 · FS 4 122353 · FS-4-122353

Brand
GEMS SENSORS
Item
FS-4 122353 General Purpose Piston Flow Switch
Part Number
FS-4, 122353
Category
General Purpose Piston Flow Switches
Available to Order
Also known as:FS-4, 122353GEMS SENSORS
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-4, 122353
Type
PPS, UNF, SPDT, Fixed
UNF
9/16 in
Set Point Type
Fixed
Connection Size
9/16 in
Switch Position
Normally Closed
Contact Rating (DC)
20 V

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

Product Description

The GEMS SENSORS FS-4 122353 is a general purpose piston flow switch with a fixed set point and normally closed switch position. It features a PPS body with 9/16 in UNF connections and an SPDT contact rated at 20 V DC. This product is designed for reliable flow detection in industrial equipment applications.

Frequently Asked Questions

What is the GEMS SENSORS FS-4 122353 liquid flow switch used for?

The GEMS SENSORS FS-4 122353 is a general purpose piston flow switch used for reliable flow detection in industrial equipment. It monitors liquid flow and triggers a normally closed SPDT switch at a fixed set point, making it suitable for process control, cooling systems, and lubrication circuits.

What are the specifications of the GEMS SENSORS FS-4 122353 flow switch?

The GEMS SENSORS FS-4 122353 has a PPS body with 9/16 in UNF connections, a fixed set point, and a normally closed switch position. It features an SPDT contact rated at 20 V DC. The manufacturer part numbers are FS-4 and 122353.

Where to buy the GEMS SENSORS FS-4 122353 flow switch worldwide?

3G Electric supplies the GEMS SENSORS FS-4 122353 flow switch worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this fixed-set-point piston flow switch.

How to install a GEMS SENSORS FS-4 piston flow switch?

Install the GEMS SENSORS FS-4 flow switch in a vertical or horizontal pipe section with flow direction matching the arrow on the body. Ensure the 9/16 in UNF connections are properly sealed. Wire the SPDT normally closed contacts to your control circuit, and verify the fixed set point meets your application requirements.

Used in

Common applications for GEMS SENSORS
Cooling water systems — Gems Sensors flow sights with remote output (e.g., 1AMB2) monitor flow to critical equipment and signal alarms.
Lubrication lines — Gems Sensors flow indicators (e.g., 1AMD3) provide visual confirmation of oil flow to bearings and gears.
Process water monitoring — Gems Sensors flow sights (e.g., 1AMB9) verify flow in water treatment and chemical dosing systems.
HVAC systems — Gems Sensors flow switches (e.g., 1AMB5) detect flow in chilled water and condenser loops for pump control.
Food and beverage — Gems Sensors flow sights with stainless steel bodies (e.g., 1AMD4) are used in clean-in-place (CIP) systems for flow verification.
Power generation — Gems Sensors flow sights (e.g., 1AMB6) monitor cooling water and lube oil flow in turbines and generators.
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GEMS SENSORS Products

3G Electric supplies GEMS SENSORS general purpose piston 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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