Flow Switch, Harwil, 3/4" MPT, 3 SM, NO, NT, 6FT, 1/2 Amp, 50 Watts Not For Spa, 1-1/2" paddle Lenght : Q12N50
Flow Switch, Harwil, 3/4" MPT, 3 SM, NO, NT, 6FT, 1/2 Amp, 50 Watts Not For Spa, 1-1/2" paddle Lenght : Q12N50 is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Ships Same Day (M-F) if ordered before 12pm EST otherwise will ship next business day. Shipping Policy
30 Day Returns
30 Day Returns
30 Day Returns / 10% Restocking Fee
Full Return Policy
Flow Switch, Harwil, 3/4" MPT, 3 SM, NO, NT, 6FT, 1/2 Amp, 50 Watts Not For Spa, 1-1/2" paddle Lenght : Q12N50 is backordered and will ship as soon as it is back in stock.
Description
Description
Product Details
The Harwil Q-12 Flow Switch is a versatile fluid flow verification device widely used in pool, spa, and fluid control industries since the mid-1980s. It features adjustable parameters to suit various applications, ensuring safe and efficient operation of water systems.
Flow Switch, Harwil, 3/4" MPT, 3 SM, NO, NT, 6FT, 1/2 Amp, 50 Watts Not For Spa, 1-1/2" Paddle Length (Q12N50)
- Model: Q-12 (Part Number: Q12N50)
- Connection Size: 3/4" Male Pipe Thread (MPT)
- Electrical Rating: 1/2 Amp, 50 Watts
- Paddle Length: 1-1/2"
- Lead Length: 6 feet
- Switch Type: Normally Open (NO), Non-Thermostatic (NT)
- Flow Range: 0.7 to 590 gallons per minute (GPM)
- Maximum Flow: Up to five times the normal flow
- Pressure Drop: Typically less than 1.0 psig at normal flow
- Plumbing Compatibility: Suitable for pipe sizes from 3/4" to 6"
- Electrical Switching Capability: Switches voltages from 5 VDC to 240 VAC
- Applications: Used to verify fluid flow in pool salt chlorine generators, spas, hot tubs, chillers, and water disinfection systems
- Note: Not intended for spa use
The Harwil Q-12 flow switch provides reliable flow verification to protect equipment such as heaters and chillers by ensuring sufficient fluid movement. Its low pressure drop and broad flow range make it adaptable for various industrial and residential applications.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


