Specifications
Brand Name :
KeramControls
Model Number :
KWFS
Certification :
CE
Place of Origin :
China
MOQ :
100 pcs
Price :
USD3-10/piece EXW factory
Payment Terms :
T/T, Western Union
Supply Ability :
5000 pcs per month
Delivery Time :
5-10 working days
Packaging Details :
Carton
Type of operation :
On/Off,single-stage,micro switch
Output :
SPDT 15(8A) 24/250VAC
Warranty :
1 year
Sensing element :
Paddle
Paddle material :
Stainless steel
Liquid temperature :
-20℃~120℃
Permissible ambient temperature :
-40℃~85℃
Description

SPDT micro switch paddle type water flow switch

Description

KWFS series liquid flow switch, suitable for pipelines in industrial plants: heating and air conditioning, refrigeration systems and heat pumps, flow control of water and conventional liquid 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 13.5Ba


Specifications

Type of operation On/Off,single-stage,micro switch
Output SPDT 15(8A) 24/250VAC
Flow rates See flow rate table
Flow rate setting adjustment Internal screw
Sensing element Paddle
Liquid applications Hot, chilled, well, pool and sea water,Brine or ethylene glycol
Parts material in contact with fluid Brass
Paddle material Stainless steel
Liquid temperature -20℃~120℃
Permissible ambient temperature -40℃~85℃
Permissible ambient humidity 10…90% RH, non-condensing
Cable entry M18 Fitting
Housing Fire Resistance ABS or PC
Protection IP65
Color White
Weight 1.0Kg

Types of Model

Model Connection
KWFS-1 1/2" -14 NPT
KWFS-2 3/4" -14 NPT
KWFS-3 1" -11½ NPT

Liquid Flow Rate Table

Line Pipe Size(in.) 1 1-¼ 1-½ 2 2-¼ 3 4 4Z 5 5Z 6 6Z 8 8Z
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)
12.5
(28.4)
57.01
(12.9)
90.0
(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)
13.7
(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
(18.4)
374.7
(85.1)
144.0
(32.7)
759.5
(172.5)
415.0
(94.2)
Flow Decrease
&③Connected
8.1
(1.9)
12.5
(2.8)
16.3
(3.7)
25.1
(5.7)
28.6
(6.5)
471
(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


SPDT micro switch paddle type water flow switch


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)
SPDT micro switch paddle type water flow switch
Paddles

SPDT micro switch paddle type water flow switch

Install Paddle
Pipe NO.
1" 1
11/4" 1
11/2" 1
2" 1,2
21/2" 1,2
3" 1,2,3
4" 1,2,3
4"Z 1,2,3,4
5" 1,2,3
5"Z 1,2,3,4
6" 1,2,3
6"Z 1,2,3,4
8" 1,2,3
8"Z 1,2,3,4

SPDT micro switch paddle type water flow switch

FAQ

1 Q: What's the delivery time?

A: According to the specification and quantity of your order, generally 4

days for normal standard products within 10pcs.

2 Q:Are you manufacturer or trading company?

A: We are manufacturer with many years of experience.We have our

own factory.Welcome to visit our factory.

3 Q: Can we use our logo on the products?

A: Yes.We can provide OEM service.

4 Q: Do you have products with ex-proof certificate?

A: Yes,we can offer intrinsic-safety and flame proof certificates.

5 Q: What is the warranty of your products?

A: Normal is 12 months.

6 Q: What's the means of transport?

A: Express such as TNT,Fedex,DHL,UPS, or logistics by indicator.

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SPDT micro switch paddle type water flow switch

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Brand Name :
KeramControls
Model Number :
KWFS
Certification :
CE
Place of Origin :
China
MOQ :
100 pcs
Price :
USD3-10/piece EXW factory
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video
SPDT micro switch paddle type water flow switch
SPDT micro switch paddle type water flow switch
SPDT micro switch paddle type water flow switch
SPDT micro switch paddle type water flow switch

Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.

Verified Supplier
4 Years
jiangsu, nanjing
Since 1998
Business Type :
Manufacturer
Total Annual :
2000000-3000000
Employee Number :
>100
Certification Level :
Verified Supplier
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