Harwil Q-12N / Q-12CR Flow Switch, 0.7 to 590 GPM, 1/2 in NPT, 200 psig
SKU PFS-Q-12CR/6"/6S/SPDT/4
Harwil Q-12N and Q-12CR Flow Switch Miniature body, serious range. The Harwil Q-12N (Noryl) and Q-12CR (Fortron) are miniature 1/2 inch NPT flow switches covering 0.7 GPM in 3/4 inch pipe up to 590 GPM in 8 inch pipe. True flow switch...
- Flow range
- See model configuration
- Pipe size
- See model configuration
- Body material
- Fortron
Product drawings
2 filesBuild from your operating duty
Choose the operating duty and product options. The builder identifies the published sensing configuration and matching SKU.
Reference drawing
Product diagram
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Reference drawing
Electrical diagram
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Check the manufacturer drawings while you build.
- 1Duty
- 2Sensing element
- 3Model configuration
- 4Electrical
Pipe and target flow
Use the pipe size and switch point from your system. Do not enter a component code.
Pipe sizeChoose a pipe size to see its published operating choices.
Published sensing selection
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Pipe size and operating duty determine the sensing element.
Model configuration
Choose the model or switch package that matches the application.
Electrical configuration
Choose the cataloged switch operation, cable, or conduit connection.
Technical information
Description and specifications
Harwil Q-12N and Q-12CR Flow Switch
Miniature body, serious range.
The Harwil Q-12N (Noryl) and Q-12CR (Fortron) are miniature 1/2 inch NPT flow switches covering 0.7 GPM in 3/4 inch pipe up to 590 GPM in 8 inch pipe. True flow switch performance, independent of pressure and temperature.
| Minimum Flow | 0.7 GPM in 3/4 inch pipe |
|---|---|
| Maximum Flow | 590 GPM in 8 inch pipe |
| Pipe Size | 3/4 inch and up |
| Process Connection | 1/2 inch or 3/4 inch NPT |
| Max Pressure | 200 psig |
| Max Temperature | 180 F / 200 F |
| Q-12N Body | Noryl |
|---|---|
| Q-12CR Body | Fortron |
| Blade | 316 stainless steel, Hastelloy C |
| Switch Operation | SPDT, NO or NC |
|---|---|
| Cable Options | 4 cable configurations |
| Certification | UL Component Recognized, file E85349 |
- Pure water, tap water, sea water, cooling tower water
- Glycol solutions, acids and bases
- Hydrocarbons, ketones, lubricating oils, gasoline, JP-4
- Plating solutions
Which paddle and pipe size do I order?
Select the combination that matches your pipe size and the ON / OFF switch point you need. The variant list shows every published pipe size, paddle number and ON / OFF GPM pair.
Noryl or Fortron?
Q-12N is Noryl. Q-12CR is Fortron. Blade material is 316 stainless steel or Hastelloy C.