air pressure switch

High-Performance Air Pressure Switch for Industrial & Automotive Applications

Xi'an Qintai Automotive Emission Technology Co. Ltd brings you enterprise-grade air pressure switch solutions backed by over 20 years of manufacturing excellence. Our switches deliver exceptional sensitivity with adjustable setpoint ranges from 10 Pa to 5000 Pa and repeatability accuracy of ±5% or better. Engineered with high-performance EPDM or Silicone diaphragms, our devices operate reliably in extreme temperatures from -40°C to +85°C. With annual production capacity exceeding two million sensors and certifications including ISO9001, IATF16949, UL, CE, REACH, and RoHS, we serve as the No. 1 core supplier to China's leading power manufacturers including Weichai, Yuchai, and Quanchai. Our 86-strong R&D team continuously innovates to deliver precision electromechanical devices that bridge pneumatic systems and electronic control units.

What Is an Air Pressure Switch?

A product is a mechanical device that monitors and controls system operations based on pneumatic pressure changes. It effectively senses air or gas pressure variations and provides electrical signals when pre-defined setpoints are reached.

These precision instruments serve as critical safety and control components in industrial environments. They bridge the gap between pneumatic systems and electronic control circuits seamlessly.

The device solves core industry challenges including hazardous exhaust blockages in combustion systems. It prevents inefficient motor cycling in compressors and reduces costly equipment downtime caused by undetected pressure fluctuations.

How Does It Work?

The operation begins when you plug in the equipment and move the control lever to auto position. The motor starts immediately, and the compressor begins pressurizing the system.

As pressure builds within the device, an internal diaphragm monitors the rising levels continuously. Once the pressure reaches the predetermined setpoint, the diaphragm mechanism breaks the electrical circuit and stops the motor.

Simultaneously, back pressure escapes through the integrated pressure relief valve. This valve design allows easier starting without hassle by relieving head and line pressure.

When air is consumed during operations, pressure drops to a specified lower threshold. The electrical contacts close again automatically, restarting the motor to repressurize the system. This intelligent cycling continues throughout your operational period.

QS-P220 Technical Specifications

Key Advantages

Predominant Toughness: Our switches highlight vigorous electrical contacts with silver or gold-plated combinations. These materials handle inductive loads viably and stand up to debasement over time.

Environmental Flexibility: Tall entrance assurance appraisals of IP54 or IP65 protect inner components. Your frameworks stay ensured against tidy and dampness entrance in requesting mechanical settings.

Precise Control: Progressed stomach innovation conveys steady execution over weight varieties. You get real-time checking with fail-safe interlocking for ideal operation.

Flexible Setup: Accessible in Ordinarily Open (NO) and Regularly Closed (NC) terminal setups. This flexibility underpins different security rationale and signaling requirements.

Independent R&D Excellence

Our autonomous R&D group of 86 specialists persistently innovates to make strides item execution. We have connected for 58 development licenses, illustrating our commitment to mechanical advancement.

We contribute intensely in inquire about offices and testing gear. This commitment guarantees that your weight control arrangements join the most recent building breakthroughs.

China's No. 1 OEM Supplier

As the driving proficient OEM provider in China, we give high-quality items to worldwide brands. Our position as center provider to Weichai Control, Yuchai Control, and Quanchai Control approves our industry leadership.

We rank No. 1 in China showcase share for car outflow control components. This accomplishment reflects our unflinching commitment to quality and client satisfaction.

Comprehensive OEM/ODM Services

We offer end-to-end OEM and ODM administrations custom-made to your particular necessities. From starting item plan through mass generation, our group underpins your extend at each stage.

Our fabricating skill covers tooling improvement, prototyping, testing, and certification. You get total arrangements that meet universal measures and administrative requirements.

Customization Support

We get it that distinctive applications request one of a kind determinations. Our building group underpins adaptable item customization agreeing to your operational needs.

Whether you require adjusted setpoint ranges, specialized lodging materials, or custom electrical arrangements, we adjust our plans. Your particular challenges get focused on arrangements supported by specialized mastery.

Certifications

Our Partners

We maintain strategic partnerships with leading automotive and industrial equipment manufacturers worldwide. Our client portfolio includes major Chinese power system producers and international distributors.

These long-term relationships are built on consistent quality, reliable delivery, and responsive technical support. Your projects benefit from our established supply chain and industry connections.

Exhibition & Global Market Presence

Qintai actively participates in major international trade exhibitions including Automechanika and Bauma China. These events showcase our latest innovations and strengthen customer relationships.

Our global market presence extends across Asia, Europe, and North America. Regional technical support teams ensure you receive prompt assistance regardless of your location.

Warehouse & Logistics

Our cutting edge stockroom offices span over 5,000 square meters with climate-controlled capacity regions. Progressed stock administration frameworks guarantee ideal stock levels and fast arrange fulfillment.

We accomplice with solid worldwide coordinations suppliers for proficient worldwide shipping. Your orders are followed from alacrity through conveyance, giving total supply chain perceivability.

Packaging & Shipment

Each air pressure switch undergoes rigorous quality inspection before secure packaging. We use protective materials and shock-resistant containers to prevent transit damage.

Standard packaging includes moisture-proof wrapping and foam inserts for component protection. Custom packaging options are available for bulk orders or special handling requirements.

FAQ

Q: Why does my item fall flat to reset?

A: This issue regularly comes about from flotsam and jetsam amassing in the detecting harbour or setpoint setups as well near to working changes. Proficient cleaning or recalibrating the hysteresis differential ordinarily settle this problem.

Q: Can a item be utilized with combustible gases?

A: As it were switches particularly appraised as explosion-proof or naturally secure concurring to ATEX/IECEx benchmarks ought to be utilized. Continuously confirm certification documentation some time recently establishment in dangerous environments.

Q: What is the distinction between NO and NC terminals?

A: Ordinarily Open (NO) terminals near the circuit when weight rises over the setpoint. Ordinarily Closed (NC) terminals open the circuit beneath the same conditions, permitting flexible security and signaling rationale implementation.

Q: How does mugginess influence performance?

A: Tall stickiness can cause inner condensation influencing precision and life span. Our high-quality switches include IP-rated walled in areas and moisture-resistant stomachs particularly planned to moderate these natural challenges.

Q: How frequently ought to calibration be performed?

A: For basic security applications, industry measures suggest yearly calibration plans. This support accounts for spring weakness and stomach maturing, guaranteeing proceeded accuracy all through the gadget lifecycle.

Q: How do I test my weight switch?

A: To begin with, disengage control at the breaker for security. Evacuate the cover utilizing a screwdriver and find the terminal wires. Apply controlled weight whereas utilizing an ohm meter to test circuit coherence. A zero-ohm perusing when closed shows legitimate work.

Contact Us Today

Our technical team is prepared to discuss your specific application requirements and recommend optimal air pressure switch solutions.

Email us at info@qt-sensor.com for expert consultation and competitive quotations.