Description
Liquid Flow Switches are Single - Pole, Double - Throw (SPDT) flow switches that are used in liquid lines carrying water,ethylene glycol,or other liquids not classified as hazardous, They can be wired to energize one device and de-energize another device powered from the same source when liquid flow either exceeds or drops below the set flow rate.
Feature
- LQY series liquid flow switch is used to monitor the flow change
- Renovated SPDT micro-switch ensure the reliable switch function
- Max temperature of medium 120℃
- Liquid pressure up to 1Mpa
- 3 stainless steel blades for diameter of 25-75mm pipeline
- 6 additional blades for 100-150mm pipe
- Protection type IP54
- Various connections are available on request
- Max working pressure 13.5Bar
- Electrical loading AC250V 10A
- CE approval
Technical Data
| 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 | -10℃~120℃ |
| Permissible ambient temperature | -20℃~85℃ |
| Permissible ambient humidity | 10…90% RH, non-condensing |
| Cable entry | M18 Fitting |
| Housing | Fire Resistance ABS or PC |
| Protection | IP54 |
| Color | White |
| Weight | 1.0Kg |
Dimensions (mm)
Structure
Liquid Flow Rate Table
| Line Pipe Size(in.) | 1 | 1-¼ | 1-½ | 2 | 2-½ | 3 | 4 | 5 | 6 | 8 |
| Min.flow | Flow Increase R to Y | 1.0 | 1.3 | 1.7 | 3.1 | 4.1 | 6.2 | 8.4 | 12.9 | 16.8 | 46.6 |
| Flow Decrease R to B closes | 0.6 | 01 | 1.1 | 2.2 | 2.8 | 4.3 | 6.1 | 9.3 | 12.3 | 38.6 |
| Max.flow | Flow increase R to Y closes | 2.0 | 3.0 | 4.4 | 6.6 | 7.8 | 12.0 | 18.4 | 26.8 | 32.7 | 94.2 |
| Flow decrease R to B closes | 1.9 | 2.8 | 4.1 | 6.1 | 7.3 | 11.4 | 17.3 | 25.2 | 30.7 | 90.8 |
Installation
Direction of the arrow on the cylinder should be in line with the pipe flow;
Water flow switch should be installed in a horizonal pipeline,it must be installed in a vertical direction;
Flow switch in use is absolutely not permit to flow back to avoid the blade back into the fracture.
Contact Function
Trimming of the Paddle
Notice
With (* ) leaves for the factory is installed;
With ( △) for additional blades (not installed);
After the leaves trimmed to install. its top of the wall shall not have any triction with the wall and the bottom 5-10 mm gap.
Model Specification
| Model | Connection | Notes |
| LQY50P | 1’’-11 1/2NPT | Plastic Case |
| LQY50P-1 | 1’’-11 1/2NPT |
| LQY50P-2 | 1/2’’-14 NPT |
| LQY50P-3 | 3/4’’-14NPT |
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.
Product Tags:
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