Harwil® type Q-16 switches are used to signal, start, or stop electronically operated equipment when flow or no-flow conditions occur. Harwil’s patented elastomeric sealing system is superior to the metal bellows that are subject to metal fatigue and corrosion. This seal system has been field-proven for over a decade.
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| Manufacturer | |
|---|---|
| Series | |
| Item Type | Industrial, OEM |
| Media Type | Corrosive Chemicals, Viscous Liquid (Oils, Syrups, etc.), Water (Clean) or Similar Liquids |
| Connection Size | 1 – 1 1/2 |
| Technology | Paddle |
| Body Material | Brass/Bronze, Stainless Steel |
| Switch Type | SPDT |
| Setpoint Type | Adjustable |
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Kobold® type PPS Polysulfone paddle flow switches are for pipes 1″ and larger, and combine reliability with an economical price. They are also virtually maintenance free. The pressure drop across the instrument is negligible. It is available with either a normally open, normally closed, or SPDT reed switch contact.
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| Item Type | Media Type | Connection Size | Technology |
|---|---|---|---|
| Industrial, OEM | Corrosive Chemicals, Viscous Liquid (Oils, Syrups, etc.), Water (Clean) or Similar Liquids | 1 - 1 1/2 | Paddle |
Harwil® type Q-5 & Q-5SS industrial flow switches are designed for extreme, long-term reliability, and for use in particle contaminated fluids. Multiple quick change paddles and continuous spring adjustment provide an incredibly wide operating range of flow rates and viscosities. They are calibrated independent of line pressure and temperature, and maintain calibration limits when subjected to reasonable line hydraulic hammer or surge pulses. A DPDT model is available upon request.
[button href=”/wp-content/uploads/2016/10/harwil_q5_switch.pdf” target=”_blank” icon=”no-icon” class=”btn-ghost”]Data Sheet[/button]
| Item Type | Media Type | Connection Size | Technology |
|---|---|---|---|
| Industrial | Corrosive Chemicals, Viscous Liquid (Oils, Syrups, etc.), Water (Clean) or Similar Liquids | 1 - 1 1/2 | Paddle |
Gems® type FS-926 low flow switches provide reliable and consistent performance with repeatability within 1%. They are factory preset for actuation at specified flow rates. They provide accurate detection of excessive or insufficient flow rates in such applications as: protecting against loss of fluid flow in hydraulic systems, assuring proper coolant flow in semiconductor processing equipment, monitoring high pressure lubrication systems, and ensuring proper air flow in water/waste systems.
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| Item Type | Media Type | Connection Size | Technology |
|---|---|---|---|
| OEM | Air/Gas, Corrosive Chemicals, Viscous Liquid (Oils, Syrups, etc.), Water (Clean) or Similar Liquids | 1/8 - 3/4 | Piston |
Harwil® type Q-12N & Q-12CR switches are provided with three factory adjustable parameters – paddle area, length, & stiffness – which provide performance flexibility to meet a multitude of applications. A positive stop eliminates fatigue effects of turbulence, vibration, and flow surge on flow detecting element. They have a very low pressure drop, typically less than 1.0psig at normal flow rate. Their small size and low profile provides easy mounting in crowded installations.
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| Item Type | Media Type | Connection Size | Technology |
|---|---|---|---|
| OEM | Corrosive Chemicals, Viscous Liquid (Oils, Syrups, etc.), Water (Clean) or Similar Liquids | 1/8 - 3/4 | Paddle |
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