QAD Series 1.5A Air Differential Pressure Switch 10 kPa Max Operating Pressure for HVAC Systems
Price:
USD6-10/piece EXW factory
MOQ:
50 pcs
Delivery Time:
3-5 working days
Brand:
Keram Controls
Product Description
Product Overview
QAD Series air differential pressure switches are precision instruments designed to detect minute pressure changes in HVAC systems, industrial cooling applications, and ventilation control. These switches feature visual set point adjustment and robust construction for reliable performance in demanding environments.
Key Applications
- Aerator flow control and monitoring
- Fan and air conditioner system monitoring
- Overheating protection in industrial cooling systems
- Frost protection applications
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Series | QAD |
| Media Compatibility | Air, non-combustible and non-aggressive gases |
| Maximum Operating Pressure | 10 kPa |
| Mounting Position | Diaphragm in any vertical plane |
| Degree of Protection | IP54 (with cover) |
| Operating Temperature | -40℃ to 85℃ |
| Contact Arrangement | SPDT |
| Electrical Rating | 1.5A resistive (0.4A inductive) 250V Initial resistance: |
| Electrical Connection | 6.3x0.8 blade 46244 or screw terminals |
| Material Construction | Housing: ABS Duct connectors: ABS Membrane: Silicone Cable sleeve: PVC |
| Weight | 0.15 kg (0.35 kg with flexible pipe) |
| Connection Size | φ6.0mm for tube connection |
| Certifications | UL, CE, RoHS |
Product Dimensions
Installation Guidelines
QAD series air pressure controls are factory-calibrated for vertical position installation. Horizontal mounting affects switching point accuracy:
- Cover facing upwards: switching point increases by 15Pa
- Cover facing downwards: switching point decreases by 15Pa
Important: Do not install upside down with trip pressures less than 50Pa!
Electrical Wiring Diagram
Product Range Specifications
| Model | Pressure Range | Differential | Tolerance |
|---|---|---|---|
| QAD-1 | 20~200Pa | 10Pa | ±15% |
| QAD-2 | 30~300Pa | 10Pa | ±15% |
| QAD-3 | 40~400Pa | 20Pa | ±15% |
| QAD-4 | 50~500Pa | 20Pa | ±15% |
| QAD-5 | 200~1000Pa | 100Pa | ±15% |
| QAD-6 | 500~2500Pa | 150Pa | ±15% |
| QAD-7 | 1000~5000Pa | 250Pa | ±15% |
Note: Specifications may be modified without prior notice due to design improvements.
Frequently Asked Questions
Q: What's the delivery time?
A: Standard products within 10 pieces typically ship within 4 days, depending on specifications and order quantity.
Q: Are you manufacturer or trading company?
A: We are an experienced manufacturer with our own factory facilities.
Q: Can we use our logo on the products?
A: Yes, we provide comprehensive OEM services including custom branding.
Q: Do you have products with ex-proof certificate?
A: Yes, we offer products with intrinsic-safety and flame proof certifications.
Q: What is the warranty of your products?
A: Standard warranty period is 12 months.
Q: What's the means of transport?
A: 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