Brass 24V 15A Water Flow Switch IP65 Rated with SPDT Micro Switch for HVAC Systems
Price:
USD12-20/piece EXW factory
MOQ:
10 pcs
Delivery Time:
3-5 working days
Brand:
Keram Controls
Product Description
KWFS Series Liquid Flow Switch Overview
Professional brass liquid flow paddle switch designed for industrial heating, air conditioning, refrigeration systems and heat pumps. Features IP65 protection, 24V 15A rating, and reliable flow control for water and normal media applications.
Applications
Control and monitor liquid flow in boilers, pumps, and other equipment for heating, cooling, and air conditioning systems.
Key Features
- Flow control for water and standard media
- Renovated SPDT micro switch ensures reliable operation
- 15(8A)250VAC switch rating
- IP65, class I enclosure protection
- Adjustable set point calibration
- Stainless steel paddle construction
- Brass material housing
- Maximum liquid temperature: 120℃
- Maximum working pressure: 13.5Ba
Technical Specifications
| Parameter | Specification |
|---|---|
| Type of operation | On/Off, single-stage, micro switch |
| Output | SPDT 15(8A) 24/250VAC |
| 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 range | -20℃ to 120℃ |
| Ambient temperature range | -40℃ to 85℃ |
| Ambient humidity range | 10-90% RH, non-condensing |
| Cable entry | M18 Fitting |
| Housing material | Fire Resistance ABS or PC |
| Protection rating | IP65 |
| Color | White |
| Weight | 1.0Kg |
Model Types
| 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 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) | 125.0 (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) | 19.0 (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 (38.6) |
| Max. 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 (1.9) | 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: For flow rates with suffix "Z", the 6 inch paddle must be installed. The flow rate unit of the above table is GPM (m³/h)
Electrical Wiring
Installation Guidelines
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.
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 and Paddle Installation
Paddle Installation Guide
| Pipe Size | Paddle Numbers Required |
|---|---|
| 1" | 1 |
| 1¼" | 1 |
| 1½" | 1 |
| 2" | 1,2 |
| 2½" | 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 |
Frequently Asked Questions
What's the delivery time?
According to the specification and quantity of your order, generally 4 days for normal standard products within 10pcs.
Are you manufacturer or trading company?
We are manufacturer with many years of experience. We have our own factory. Welcome to visit our factory.
Can we use our logo on the products?
Yes. We can provide OEM service.
Do you have products with ex-proof certificate?
Yes, we can offer intrinsic-safety and flame proof certificates.
What is the warranty of your products?
Normal is 12 months.
What's the means of transport?
Express such as TNT, Fedex, DHL, UPS, or logistics by indicator.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Keram (Nanjing)ELECTRICAL Equipment Co., Ltd.
Location
Room 402, Block A, Building 12#, LianDong U Valley, No. 1 Qingnian Road, Yuhuatai District, Nanjing City, Jiangsu Province, China, 210039
Contact Person
James