Liquid Flow Controls, Paddle Type

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Liquid Flow Controls, Paddle Type


company	xian henry automation co.,ltd
Categories	Other Flow Measuring Instruments
Update	2011-03-24
Original Region	China
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Liquid Flow Controls, Paddle Type

Product Description

Application
Paddle type HFS series are designed to serve the best capacity with the firm structure, high reliability and high precision in the fluid inside the pipe. They are to be used for operation control. These series are structured in the way to open one circuit and to close the other circuit if the set flow is surpassed or not reached.
Their typical application is in interlock system to prevent equipment from starting up before sufficient flow feeding. For example, it is used to shut down equipment if the water flow drops to a predetermined value, it is also used for pump control in case the flow from a primary pump fails. Besides the liquid flow control applied widely in the flow or cooling/heating systems, the detection of air current in air routes is also adopting HFS switch in most cases.
They are used in the following pressure and temperature and can be used outdoors. They can be used in environment of high density of salt but not containing chlorine.

Specifications

Specifications
Operating pressure: 10 kgf/cm2 (1000 kPa), or 20 kgf/cm2 (2000 kPa)
Over pressure: 17.5 kgf/cm2 (1750 kPa)
Insulation resistance: Min. 100 M.ohm., DC500VM
Transient voltage: AC1500V/1 minute
Electrical Rating: 15 A, 250 VAC
Switch type: SPDT micro switch
Paddle material: Stainless steel
Cover material: ABS, C.S., or S.S.
Contact point life: 1000k cycle
Below life: 500k cycle
Temperature of fluid: Max. 100 deg. C
Standard Model Available
Model Connection Operating pressure Cover material
HFS-15 15mm(1/2") 10 kgf/cm2 (1000 kPa) ABS
HFS-20 20mm(3/4") 10 kgf/cm2 (1000 kPa) ABS
HFS-25 25mm(1") 10 kgf/cm2 (1000 kPa) ABS
HFS-15M 15mm(1/2") 10 kgf/cm2 (1000 kPa) Carbon Steel
HFS-20M 20mm(3/4") 10 kgf/cm2 (1000 kPa) Carbon Steel
HFS-25M 25mm(1") 10 kgf/cm2 (1000 kPa) Carbon Steel
HFS-15T 15mm(1/2") 20 kgf/cm2 (2000 kPa) Stainless Steel
HFS-20T 20mm(3/4") 20 kgf/cm2 (2000 kPa) Stainless Steel
HFS-25T 25mm(1") 20 kgf/cm2 (2000 kPa) Stainless Steel

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