Flow switches are essential for monitoring and controlling liquid or gas flow in various systems. Selecting the correct flow switch ensures system integrity, prevents damage, and optimizes performance. Understanding key features and applications will help you make an informed decision for your specific needs.
- For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others
- 1" NPT
- Minimum/maximum temperature: 32 degrees F/300 degrees F
- Sensitivity adjusting screw makes flow adjustment easy
- Max Switch Voltage: 250 VAC
- Max Switching Current: 5 AMPS
- Resistance with Leads: 30 OHM
- Electrical Service Life: 200,000 Cycles
- ✅Perfect Replacement for Hayward GLX-FLO-RP Flow Switch : This high-performance flow switch is designed to directly replace OEM parts GLX-FLO-RP, GLX-FLO-HP, and OPT-F/S. As a reliable aquarite flow switch and hayward flow switch for salt cell, it...
- ✅Broad Compatibility with Most Hayward Salt Pool Systems : Fully compatible with Aqua Rite, Aqua Rite Pro, Pro Logic, Aqua Logic, Aqua Plus, Aqua Rite XL, Mineral Springs MS10/MS11, H40, SwimPurePlus, SplashCLEAR, SmartPure, Splash SP-40, OmniLogic...
- ✅Easy Plug-and-Play Installation, Leak-Proof Design : Features standard 1/2'' threads, 15-foot cable, and standard phone jack connector for true plug-and-play setup. This GLX-FLO-RP pool flow switch includes rubber gasket and waterproof tape to ensure a...
- ✅Solves "NO FLOW" Error & Protects Salt Cell : Real-time water flow monitoring by this pool water flow switch automatically shuts off the salt system when low or no flow is detected, preventing costly damage to your salt cell. This hayward goldline flow...
- Parameters: 1"/dn25 water flow switch, contacts 6-380v. Maximum working pressure of flow switch: 1.0MPa; ambient temperature: 0~60°C; liquid temperature: 0~60°C; liquid temperature: -10~100°C (liquid not frozen); microswitch voltage: 220VAC
- Note: When the flow rate exceeds the set value, the fluid actuates the vane and the microswitch, and the SPDT contact can energize one circuit and break other circuits
- Application: The water flow switch is used to measure the dynamic state of fluids flowing through pipes, such as: water, ethylene dilution, glycol and other liquids that are not corrosive to copper
- Flexible Regulation: Flow control value of the flow switch is adjustable, repeat action point is stable. The number of paddles and the length of the paddle can be adjusted to suit different pipe diameters and flow rates
- 🌟🌊【Safe and Reliable】This flow sensor switch is made of brass, all materials are in line with ROHS testing standards. It's a safety device that shuts off the current to the device (heaters, pumps, etc.) when it senses no water flow.When...
- 🌟💧【Thread type: 3/4" BSP Male Thread】 The flow sensor `s male thread external diameter: 25.85mm.It is fit in NPT Thread if you connect them with teflon
- 🌟🌊 【Easy to install 】Our flow sensor is waterproof, heat resistance, pressurresistance, cold resistance, small size, stable and reliable.
- 🌟💧 【Specification】Operation voltage of this flow sensor is : 0-220V(AC or DC), Working current: 0-2A, max working pressure: 1.75 MPa. Flow range: 1-30L/min.
- [WIDELY]: This flow switch is an automatic element that controls flow in pipes, which can be used on water treatment system, central air-conditioning, water cooled chiller and relative industries. R3/4 water flow switch is applicable for fluid includes...
- [OUTPUT FORM]: flow sensor switch automatic output form is micro switch SPDT output, Micro Switch is 15A(max.), 250VAC/DC. HFS-20 water flow sensor switch has the feature that easy to use, high precision, reliable and stable
- [ADJUSTABLE]: R3/4 flow sensor control value is adjustable, repeat action point is stable. When flow rate exceeds set value, fluid drives blade and micro switch, the SPDT contact can connect a circuit and disconnect other circuit
- [LEVEL]: Water flow sensor protection grade is IP54; the contactor life is up to 100,000 times, fluid Temperature is 1℃~100℃/ 33.8℉~212℉, max. Pressure is 10bar. Please note the flowswitch can not be used when fluid temperature drops below...
- 【Compatibility & Wide Application】This GLX-FLO-RP flow switch is designed for Hayward Goldline AquaRite salt chlorine systems and Turbo Cells. Compatible with Aquarite, Aqua Rite Pro, Aqua Logic, Aqua Plus, Aqua Rite XL, Mineral Springs MS10/MS...
- 【Direct Replacement for Multiple Part Numbers】The water flow sensor for salt cell can replace GLX-FLO-RP, GLX-FLO-HP, Q-12DS-C2, and OPT-F/S.
- 【 High-Resilience Stainless Steel Paddle】Unlike cheap competitors with fragile flaps, our flow switch swing paddle is crafted from premium high-resilience stainless steel. It offers exceptional resistance to deformation, corrosion, and wear, ensuring...
- 【High-Grade Accessories】 This flow switch assembly features a 15-foot (approx. 4.57-meter) cable, ensuring ample length for use. One end utilizes a standard telephone jack interface for plug-and-play operation, complete with a circular sealing gasket...
- Product Type :Electronic Component
- Package Dimensions :9.1 Cm L X10.4 Cm W X21.3 Cm H
- Country Of Origin :United States
- Package Weight :1.0Lbs
- Product Information:GLX-FLO-RP flow switch compatible with Hayward all goldline aquarite Salt Cell and Chlorine Generator. Flow Switch Assembly, sensing piece is made of steel for longer service life. The description of the Swimming Pool Salt Systems...
- Extensively Compatible with Hayward salt system: glx-flo-rp flow switch/flow sensor compatible with Hayward Aquarite, Aqua Rite, Aqua Rite Pro, Aqua Logic, Aqua Plus, Aqua Rite XL, Mineral Springs MS10/MS11, SwimPurePlus, SplashCLEAR, H40, SmartPure, Pro...
- Perfect replacement of flow switch: Our upgraded flow switch can be used for replacement of GLX-FLO-RP, GLX-FLO-HP, and OPT-F/S models. The sensors can be replaced with either plastic or metal materials. Replacing the old GLX-FLO-RP flow switch with a new...
- Solve the problem of no flow in the salt water system. Our flow switch has been completely upgraded. Our flow switch is made of metal material at the switch area, which is not prone to damage. The wires and connectors are the latest model of...
- Compatibility: Replace part number 2560-040, Q12DS-C2. The flow switch compatible with Sweetwater, Jacuzzi, Sundance spas hot tub. Please check the compatible model in the Product Description.
- For Sundance Spas Models: 09/2020+ 680 Series / 03/2020+ 780 Series, 04/2017+ 780 Dover / 10/2016+ 980 Series: Kingston, Claremont / 2016+ 880 Series: Maxxus, Aspen, Optima, Cameo, Altamar, Marin, Capri / 2013-03/2017 780 Montclair / 2011+ Select Series...
- For Sweetwater and Jacuzzi Hot Tub Models: All 2003-2004 Sweetwater Models, such as Palermo Bahia, Cayman / 2015+ J-500 Series / 09/2015+ J-400 Series / 2016+ J-300 Convertible Models / 02/2020+ J-300 Models / 10/2020+ J-200/J-100 Models...
- Function: Spa flow switch helps clear error messages FL1 and FL2, you can soaking in the hot tub again!
This article is part of our complete guide Plumbing & Electrical — browse all our comparisons and buying guides.
Last update on 2026-10-02 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Flow Switches
Understanding Flow Switch Types
Flow switches operate on different principles, each suited for particular applications. Common types include paddle, thermal dispersion, and turbine flow switches. Paddle switches are mechanical and cost-effective for detecting flow presence or absence in larger pipes. Thermal dispersion switches use temperature differences to indicate flow, offering no moving parts and high accuracy, ideal for sensitive systems. Turbine switches measure flow rate by counting the rotation of a turbine, providing precise volumetric flow data.
Key Features to Consider
When choosing a flow switch, several features are critical. Material compatibility is paramount; ensure the switch materials will not corrode or react with the fluid. Pressure and temperature ratings must exceed your system's operating conditions. Switching output (e.g., NPN, PNP, relay) should match your control system's input requirements. Consider the flow range the switch can accurately detect and the response time needed for your application.
Installation and Maintenance
Proper installation is vital for reliable performance. Follow the manufacturer's guidelines for orientation, insertion depth, and electrical connections. Ensure the switch is installed in a section of pipe where flow is representative of the system. Maintenance typically involves periodic checks of connections and, depending on the fluid, occasional cleaning to prevent buildup on sensing elements. For thermal dispersion switches, ensure no obstructions are near the sensor.
Application-Specific Selection
The intended use dictates the best choice. For simple on/off applications like preventing dry running of pumps or signaling high/low flow, paddle or basic thermal switches are often sufficient. For precise flow rate monitoring in industrial processes or HVAC systems, turbine or advanced thermal dispersion switches are preferred. Consider the fluid's viscosity, presence of solids, and the required accuracy when making your final selection.