HVAC Adjustable Air Pressure Switch 20-200Pa Range with UL CE Certification for Industrial Cooling Systems
Price:
USD6-10/piece EXW factory
MOQ:
50 pcs
Delivery Time:
3-5 working days
Brand:
Keram Controls
Product Description
Product Overview
The QAD series differential pressure switch is engineered for precise sensing of minute pressure changes in HVAC systems. This versatile component is widely utilized for controlling aerator flow, monitoring fans and air conditioners, and providing over-heating and frost protection in industrial cooling applications.
Featuring an innovative visual adjustment design, the set point can be easily calibrated to meet specific operational requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | QAD Series |
| Media Compatibility | Air, non-combustible and non-aggressive gases |
| Maximum Operating Pressure | 10kPa |
| Mounting Position | Diaphragm in any vertical plane |
| Degree of Protection | IP54 (with cover) |
| Operating Temperature | -40℃ to 85℃ |
| Contact Arrangement | SPDT |
| Electrical Rating | Resistance: Initial: |
| Electrical Connection | 6.3x0.8 blade 46244 or screw terminals |
| Material Construction | Housing: ABS; Duct connectors: ABS; Membrane: Silicone; Cable sleeve: PVC |
| Weight | 0.15kg (0.35kg with flexible pipe) |
| Connection | φ6.0mm for tube connection |
| Certifications | UL, CE, RoHS |
Product Range & Pressure Settings
| 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% |
Installation Guidelines
QAD series air pressure controls are factory-calibrated for vertical position installation. Horizontal installation affects switching points as follows:
- Cover facing upwards: Switching point is 15Pa higher than scale
- Cover facing downwards: Switching point is 15Pa lower than scale
Important: Do not install upside down with trip pressures of less than 50Pa!
Product Dimensions
Electrical Wiring Diagram
Product Application Image
Frequently Asked Questions
What is the delivery time?
Standard products within 10 pieces typically ship within 4 days, depending on specifications and order quantity.
Are you a 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 comprehensive OEM services including custom branding.
Do you have products with explosion-proof certification?
Yes, we offer intrinsic-safety and flame-proof certified products.
What is the warranty period?
Standard warranty is 12 months from date of purchase.
What shipping methods are available?
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