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| Categories | Liquid Flow Switches |
|---|---|
| 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 |
| Flow rates: | See flow rate table |
| Sensing element: | Paddle |
| Paddle material: | Stainless steel |
| Liquid temperature: | -20℃~120℃ |
| Housing: | Fire Resistance ABS or PC |
| Company Info. |
| Keram (Nanjing)ELECTRICAL Equipment Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
KWFS is a flow switch with protection class IP65, which can be used in harsh environments, and its contact with the medium is made of brass, which can make the service life of the equipment long.
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
| 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) | 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 ①&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 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 (18.4) | 374.7 (85.1) | 144.0 (32.7) | 759.5 (172.5) | 415.0 (94.2) |
| Flow Decrease ①&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)
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.
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