QYD Series Adjustable Differential Pressure Switches 0.5-6 Bar Range 30 Bar Max Working Pressure for HVAC Systems
Price:
USD15-25/piece EXW factory
MOQ:
50 pcs
Delivery Time:
3-5 working days
Brand:
Keram Controls
Product Description
QYD Series Adjustable Differential Pressure Switches
Professional differential pressure switches designed for air conditioning systems to monitor and prove flow through pumps. Suitable for use with fluorinated refrigerants, air, and liquids within temperature range of -20°C to 120°C.
Product Features
- Renovated SPDT micro-switch ensures reliable switching function
- Flexible mounting bracket for various application requirements
- Multiple pressure range options from 0.5 to 6 bar differential
- Maximum working pressure up to 30 bar depending on model
- Compatible with air and liquid media
Model Specifications
| Model | Differential Range (Bar) | Factory Setting (Bar) | Max Working Pressure (Bar) |
|---|---|---|---|
| QYD2C | 0.5 - 2 | 0.5 | 12 |
| QYD4C | 0.5 - 3.5 | 1 | 12 |
| QYD4CH | 0.5 - 3.5 | 1 | 30 |
| QYD6CH | 1 - 6 | 6 | 30 |
| QYD4C/B | 0.3 - 4 | 0.3 | 17 |
Product Dimensions
Electrical Ratings
| Current Type | 125V A.C | 250V A.C |
|---|---|---|
| Non-Inductive Current | 20A | 10A |
| Inductive Current - Full Load | 15A | 8A |
| Inductive Current - Locked Rotor | 72A | - |
Contact Function Diagram
Terminal Functions:
- 1 - Common Terminal
- 2 - Close on Pressure Increase
- 3 - Close on Pressure Decrease
Connection & Installation
Mounting Plate
Operating Instructions
- Pinch both sides of the plastic lid to open the outer cover
- Use two wrenches when installing in pipes for proper tightening
- Do not exceed the electrical rating specifications of the device
Frequently Asked Questions
What's the delivery time?
Standard products within 10 pieces typically ship within 4 days, depending on specifications and order quantity.
Are you manufacturer or trading company?
We are an experienced manufacturer with our own factory facilities.
Can we use our logo on the products?
Yes, we provide OEM services for custom branding.
Do you have products with ex-proof certificate?
Yes, we offer intrinsic-safety and flame proof certified models.
What is the warranty of your products?
Standard warranty period is 12 months.
What's the means of transport?
We ship via express carriers (TNT, FedEx, DHL, UPS) or logistics services as specified.
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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