Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 2000pics/month |
| Delivery Time | 7days |
| Packaging Details | Carton |
| Protection | IP65 |
| Cable entry | M18 Fitting |
| Permissible ambient humidity | 10…90% RH, non-condensing |
| Liquid applications | Hot, chilled, well, pool and sea water,Brine or ethylene glycol |
| Brand Name | Keramcontrols |
| Model Number | KWFS |
| Certification | CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 2000pics/month |
| Delivery Time | 7days | Packaging Details | Carton |
| Protection | IP65 | Cable entry | M18 Fitting |
| Permissible ambient humidity | 10…90% RH, non-condensing | Liquid applications | Hot, chilled, well, pool and sea water,Brine or ethylene glycol |
| Brand Name | Keramcontrols | Model Number | KWFS |
| Certification | CE | Place of Origin | China |
| High Light | Industrial Plant Piping Liquid Flow Switch ，single stage Liquid Flow Switch ，IP65 flow switch stainless steel | ||
KWFS series liquid flow switch adopts reliable micro switch, the contact life is more than 500K times, SPDT switch, precision assembly, accurate action, convenient wiring, only need to open the shell to operate. Working principle: When the liquid flow exceeds or falls below the set flow, one of its circuits is closed and the other is opened, which is typically used in places with chain action or cut-off protection.
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
| 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 |
| 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 ①&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 ①&③Connected | 2.5 (0.6) | 3.7 (0.8) | 5.0 (1.1) | 9.7 (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 ①&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 ①&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)
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.
| 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 |
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.
Company Details
Business Type:
Manufacturer
Year Established:
1998
Total Annual:
2000000-3000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Nanjing Qiyuan Controls & Equipment Co., Ltd. was found in 1998. In 2005, the number of the employees increased to more than 100. In 2006, its manufacturing base was moved to Huai An Industrial Development Zone. Keram Controls has obtained the investment from Keram Group in 2009. In ... Nanjing Qiyuan Controls & Equipment Co., Ltd. was found in 1998. In 2005, the number of the employees increased to more than 100. In 2006, its manufacturing base was moved to Huai An Industrial Development Zone. Keram Controls has obtained the investment from Keram Group in 2009. In ...
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