China Sensor Transmitters manufacturer
Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.
Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.
4
Home > Products > Liquid Flow Switches >

SPDT Water Flow Control Switch Water Pump Flow Sensor

SPDT Water Flow Control Switch Water Pump Flow Sensor

Brand Name Keramcontrols
Model Number KWFS
Certification CE
Place of Origin China
Minimum Order Quantity 10
Payment Terms L/C, T/T
Supply Ability 2000pics/month
Delivery Time 7days
Packaging Details Carton
Type of operation On/Off,single-stage,micro switch
Output SPDT 15(8A) 24/250VAC
Flow rates See flow rate table
Housing protection IP65
Detailed Product Description

Water flow control switch water pump flow sensor

 

 

Description

 

KWFS water flow switch is a flow switch made of composite material housing, with a protection level of IP65, which can meet relatively harsh operating environments, while ensuring its stability during operation and increasing its service life, thereby reducing customer usage costs.

The working principle is that the target type (baffle type) flow switch is used to detect one-way or two-way flow of air, oil, and water. There should be no entangled debris in the medium. When the fluid flows through the pipe, the baffle deflects. By adjusting the adjusting bolt, the single pole double throw microswitch operates at the set flow rate and outputs a switching signal; During bidirectional detection, the baffle offset pushes the magnetic module upward, driving the switch module to act. Used to detect unidirectional flow of air and water, and there should be no entangled debris in the water. When the fluid flows through the pipe in the indicated direction, the baffle deflects. By adjusting the adjusting bolt, the single pole double throw microswitch operates at the set flow rate and outputs a switching signal. Large set flow range and convenient adjustment are widely used for measuring water, gas, oil, and other media.



Application


Control and monitor liquid flow of boilers, pumps, etc., of heating, cooling, and air conditioning equipment.


Features


● Flow control of water and normal media
● Renovated SPDT micro switch ensures the reliable switch function
●15(8A)250VAC switch rating
● IP65, class I enclosure
● Set point adjustable
● Stainless steel paddle
● Brass material
● Max. liquid temp 120℃
● Max working pressure 20Ba


Specifications

 

Type of operationOn/Off,single-stage,micro switch
OutputSPDT 15(8A) 24/250VAC
Flow ratesSee flow rate table
Flow rate setting adjustmentInternal screw
Sensing elementPaddle
Liquid applicationsHot, chilled, well, pool and sea water,Brine or ethylene glycol
Parts material in contact with fluidBrass
Paddle materialStainless steel
Liquid temperature-20℃~120℃
Permissible ambient temperature-40℃~85℃
Permissible ambient humidity10…90% RH, non-condensing
Cable entryM18 Fitting
HousingFire Resistance ABS or PC
ProtectionIP65
ColorWhite
Weight1.0Kg

Types of Model

ModelConnection
KWFS-11/2" -14 NPT
KWFS-23/4" -14 NPT
KWFS-31" -11½ NPT

Liquid Flow Rate Table

 

Line Pipe Size(in.)11-¼1-½22-¼344Z55Z66Z88Z
Min.flow

Flow Increase
&②Connected

4.2
(1.0)

5.8
(1.3)

7.5
(1.7)

13.7
(3.1)

17.6
(4.0)

27.5
(6.2)

64..7
(14.7)

35.2
(8.0)

125
(28.4)

57.01
(12.9)

190.0
(43.1)

74.0
(16.8)

374.7
(85.1)

204.7
(46.5)

Flow Decrease
&③Connected

2.5
(0.6)

3.7
(0.8)

5.0
(1.1)

19.7
(2.2)

11.9
(2.7)

19
(4.3)

50.1
(11.4)

26.9
(6.1)

101.1
(22.9)

41.0
(9.3)

158.0
(35.9)

54.0
(12.3)

319.7
(72.6)

170.0
(3806)

Max.flow

Flow Increase
&②Connected

9.2
(2.1)

13.3
(3.0)

17.6
(4.0)

26.9
(6.1)

30.8
(7.0)

50.2
(11.4)

127.6
(29.0)

81.0
(18.4)

245.0
(55.6)

118.0
(26.8)

374.7
(85.1)

144.0
(32.7)

759.5
(172.5)

415.0
(94.2)

Flow Decrease
&③Connected

8.1
(2.0)

12.5
(2.8)

16.3
(3.7)

25.1
(5.7)

28.6
(6.5)

47.1
(10.7)

122.0
(27.7)

76.2
(17.3)

234.7
(53.3)

111.0
(25.2)

359.7
(81.7)

134.7
(30.6)

729.6
(165.7)

400.6
(90.8)

 
Note:
①For flow rates with suffix "Z", the 6 inch paddle must be installed.
②The flow rate unit of the above table is GPM (m /h)

 


Electrical Wiring


 
 


Installation


The flow switch can be installed in every position far from elbows or throttlings, with arrow on flow direction. If pipe is vertical, recalibrate range to balance paddle weight. If the device is downwards mounted, take care to slags and apply it in a straight pipe that is far from filters,valves,etc.,with length at least 5 times the diameter of pipe upstream and downstream the unit.
 

Note:
The flow switch is factory calibrated at its minimum sensitivity.To increase the set valve,turn the adjustment screw clockwise.The cut-out valve must be ≥the minimum flow necessary to guarantee the protection of the plant.

 


Dimensions (mm)
 
Paddles

 

Install Paddle
PipeNO.
1"1
11/4"1
11/2"1
2"1,2
21/2"1,2
3"1,2,3
4"1,2,3
4"Z1,2,3,4
5"1,2,3
5"Z1,2,3,4
6"1,2,3
6"Z1,2,3,4
8"1,2,3
8"Z1,2,3,4

 

 

 

Product Tags: SPDT Water Pump Flow Sensor   Water Flow Control Switch 250VAC   Water Flow Control Switch IP65  
Related Products
Email to this supplier
 
From:
Enter your Email please.
To: Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.
Subject:
Message:
Characters Remaining: (80/3000)