GeneralThe paddle type SPDT HFS series are designed to provide excellent performance where accuracy, reliability, and rugged construction (IP54)are required used in liquid flow lines carrying water or any fluid neither harmful to brass and prosphor bronze nor classified as a hazardous fluids.
They can be wired to close one circuit and open a second circuit when liquid flow either exceeds or drops below the adjusted flow rate.
The series are recommended for liquid pressure and temperature as mentioned below and must not be used on lines carrying liquids below 0 degree C.
These series may be used on liquids with high salt or chlorine content but is not for use in hazardous atmospheres.
They may be also used outdoors but must be protected from weather or splashing water.
All series flow switches are designed for use only as operating controls.
Where an operating control failure would result in personal injury and/or loss of property, it is the responsibility of user to add safety devices that protect against, or supervisory systems that warn of control failure.
Specifications | Operating Pressure | 10kgf/cm² (1MPa) |
| Withstand Pressure | 17.5Kgf/cm² (1.75MPa) |
| Insulation Resistence | Over 100Ω, DC500VM |
| Withstand Voltage | AC1500V/1minute |
| Contact Point Life | 1000K Cycle |
| Bellows Life | 500K Cycle |
| Temperature of Fluid | Max 100°C (212°F) |
| Body Size | 1"(HTW-WS-25), 3/4"(HTW-WS-20),1/2"(HTW-WS-15) |
FLOW CONTROL RANGE TABLE
HOTOWELL International Co., Limited is an innovative and modern medium-sized enterprise, the company is headquartered in Xiamen (China/Fujian). Hotowell was found to offer our customers mature top technology. Our creative potential and our manufacturing and development know how are the basis for innovative products. Since the company was founded, HOTOWELL International Co., Limited has continuously developed itself into a market leading enterprise in the HVAC Automation / Building Automation. Our products mainly applied for industrial, commercial and residential temperature control.
Our product range contains:
Thermostats, Motorized Zone Valves, Water Flow Switches, Proportional Valves, Balancing Valves, Differential Pressure Transmitters, PIR Motion Sensors, Fan Controllers, Ball Valves, Valve Actuators, Damper Actuators, Controllers, Radiator valves, and etc.
HOTOWELL products are designed and used as field control products to be integrated with HVAC control systems such as:
BAS = Building Automation System
BMS = Building Management System
BEMS = Building Energy Management System
BAMS = Building Automation Management Systems
HVAC controls = Heating, Ventilation and Air Conditioning controls
Our objective is to develop, produce and design user-friendly products on the highest technical level. We place great value on always meeting the requirements of the latest technical standard. In this process we take the utmost care in complying with quality and safety standards and thus ensure a long service life for our products. Products that satisfy rigorous quality requirements can only be manufactured through modern manufacturing methods. Satisfaction of all safety and environmental guidelines is a matter of course for us.
Our Products save money and protect the environment!
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For more information, or to purchase Hotowell products, please feel free to contact us as below:
Hotowell International Co., Limited
www.hotowell.com
Contact: Mr. Phenix Law
Title: Product & Marketing Manager
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