China Taco Fci Thermal Dipersion Water Flow Switch

General
The 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 Pressure10kgf/cm² (1MPa)Withstand Pressure17.5Kgf/cm² (1.75MPa)Insulation ResistenceOver 100Ω, DC500VMWithstand VoltageAC1500V/1minuteContact Point Life1000K CycleBellows Life500K CycleTemperature of FluidMax 100°C (212°F)Body Size1"(HTW-WS-25), 3/4"(HTW-WS-20),1/2"(HTW-WS-15)

Product description:

1, Type: HTW-F61KB-11C

2, Pipe connector: 1 in. 11-1/2 NPT Threads

3, Switch contact: SPDT

4, Bellow pipe / blade: phosphor bronze / stainless steel

5, Blade: detachable 1", 2", 3" blades and 6" blade ( uninstalled)

6, Liquid temperature: 0~121ºC

7, Max. Liquid pressure: 1034 KPa

8, Electrical ratings: 120VAC; 208VAC; 240VAC; 277VAC

9, Full load current (A): 16.0; 8.8; 8.0

10, Transient current (A): 96.0; 52.8; 48.0

11, Non-inductive current (A): 16.0

12, other: NEMA 1 shell

1~3" blades

Required to actuate switch (m³/h)

Pipe size(in)

1

1-1/4

1-1/2

2

2-1/2

3

4

5

6

8

Min. flow

Flow increase R to B closes

1.0

1.3

1.7

3.1

4.1

6.2

14.8

28.4

43.2

85.2

Flow decrease R to Y closes

0.6

0.8

1.1

2.2

2.8

4.3

11.4

22.9

35.9

72.7

Max. flow

Flow increase R to B closes

2.0

3.0

4.4

6.6

7.8

12.0

29.1

55.6

85.2

172.6

Flow decrease R to Y closes

1.9

2.8

4.1

6.1

7.3

11.4

27.7

53.4

81.8

165.8

6" blade

Required to actuate switch(m³/h)

Pipe size(in)

4

5

6

8

Min. flow

Flow increase R to B closes

8.4

12.9

16.8

46.6

Flow decrease R to Y closes

6.1

9.3

12.3

38.6

Max. flow

Flow increase R to B closes

13.4

26.8

32.7

94.3

Flow decrease R to Y closes

17.3

25.2

30.7

90.9