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HTW-F61 KB Flow Switch

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Table 1: Typical Flow Rates

Specifications

3

GPM(m /hr)Required to Actuate Switch

Pipe Slze(in.)

1

4.2

(1.0)

2.5

(0.6)

8.8

(2.0)

8.5

(1.9)

5.8

(1.3)

3.7

(0.8)

1.3

(3.0)

12.5

(2.8)

5.0

(1.1)

19.2

(4.4)

18.0

(4.1)

9.5

(2.2)

29.0

(6.6)

27.0

(6.1)

12.5

(2.8)

34.5

(7.8)

32.0

(7.3)

19.0

(4.3)

53.0

(12.0)

50.0

(11.4)

7.5

(1.7)

13.7

(3.1)

18.0

(4.1)

27.5

(6.2)

65.0

(14.8)

37.0+

(8.4)

125.0

(28.4)

57.0+

(12.9)

101.0

(22.9)

41.0+

(9.3)

50.0

(11.4)
27.0+

(6.1)

245.0

(55.6)

118.0+

(26.8)

128.0

(29.1)

81.0+

(18.4)

235.0

(53.4)

111.0+

(25.2)

122.0

(27.7)

76.0+

(17.3)

190.0

(43.1)

74.0+

(16.8)

158.0

(35.9)

54.0+

(12.3)

375.0

(85.2)

144.0+

(32.7)

360.0

(81.8)

135.0+

(30.7)

375.0

(85.2)

205.0+

(46.6)

320.0

(72.7)

170.0+

(38.6)

760.0

(172.6)

415.0+

(94.2)

730.0

(165.8)

400.0+

(90.8)

1-1/4

1-1/2

2

2-1/2

3

4*

5*

6*

8*

Minimum

Adjustment

Flow
Increase
R to Y
Closes**

Flow
Decrease
R to B
Closes**

Flow
Increase
R to Y
Closes**

Flow
Decrease
R to B
Closes**

Maximum

Adjustment

* Flow rates for these sizes are calculated.
+ GPM figures are for a switch with a 6 in. paddle, For 4 in. And 5 in. Line pipe, the 6 in. Paddle is trimmed to a 4 in. and 5 in.
   length, respectively.
** For switching action, refer to Figure 7.

Product

Maximum Liquid Pressure

Minimum Liquid Temperature

Maximum Liquid Tempreature

Electrical Ratings

Horsepower

Full Load Amperes

Locked Rotor Amperes

Non-inductive Amperes

Pilot Duty

Wiring Connection

Pipe Connector

150psig(1034kPa)

32

°

F(0

)

250

°

F(121

)

120VAC

208VAC

1

8.8

52.8

16.0

240VAC

1

8.0

48.0

16.0

125VA at 24/277VAC

277VAC

-

-

-

16.0

1

16.0

96.0

16.0

Screw Type Terminals

1 in. 11-1/2 NPT Threads

Conduit Connection One 7/8 in.(22mm) Hole for 1/2 in. Conduit with 1-3/32 in. (28mm) knockout Ring for 3/4 in.

Conduit 

Hotowell International Co.,Limited | www.hotowell.com | Tel.:+86-592-3327332 | Fax.:+86-592-3272142

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