Shaanxi Yisirui Auto Parts Co., Ltd. is one of the most credible manufacturers and suppliers of truck seat valves in China, also supports customized service. Welcome to wholesale durable truck seat valves in stock here and get pricelist from our factory. Quality products and low price are available.
Product Overview: Precision Pneumatic Valves for Air Suspension Systems
The YSR-P030 is a precision‑engineered pneumatic control valve designed to regulate air pressure in air suspension seats and lumbar support systems. These Truck Seat Valves automatically maintain the correct ride height by sensing changes in load. When the seat compresses under load (e.g., during loading), the valve opens to admit air into the air spring, raising the seat to its preset height. Conversely, when the load is reduced, the valve releases air pressure, lowering the seat to maintain optimal positioning. This continuous, automatic adjustment ensures consistent comfort, shock absorption, and operator stability regardless of load variations.
Product Gallery & Visual Overview
Technical Specifications
| Product Model | YSR-P030 (Pneumatic Control Valve Series) |
| Material | High‑impact ABS – durable and corrosion‑resistant |
| Weight | 7 grams (0.007 kg) – ultra‑lightweight design |
| Configuration Options | Push/pull or paddle‑type actuation |
| Function | Spring‑loaded, three‑way pneumatic valve |
| Compatibility | Universal design – replaces valves on seats by major manufacturers |
Key Features & Functional Details
- Versatile Actuation: Available in both push/pull and paddle‑type configurations to match OEM designs and operator preference.
- Three‑Way Function: Spring‑loaded design provides fill, hold, and exhaust positions for precise height control.
- Electric Compressor Compatible: Engineered to operate seamlessly with electric air compressor systems – ideal for vehicles without onboard air supply.
- Universal Replacement: Designed as a direct replacement for valves used in seats by all major manufacturers – simplifies inventory and repairs.
- Integrated Valve Block: Compact, self‑contained unit simplifies installation and reduces potential leak points.
Application Example: Air Suspension Seat Regulation
In heavy‑duty vehicles, the air suspension seat adjustment mechanism consists of this control valve coupled with an airbag. The cab's air supply (or an electric compressor) connects to the airbag through the valve, allowing precise adjustment of seat height and firmness. The valve responds instantly to load changes, ensuring the operator remains at the optimal ride height for visibility, control, and comfort.
Components of an Air Ride Suspension System:
A complete air suspension system includes the air supply (vehicle air system or electric compressor), airbags, height control valves (such as the YSR-P030), and external switches for manual override.
How Height Control Valves Work:
Truck seat valves maintain the vehicle's predetermined ride height between the frame and axles (or seat base and cushion). They do this by filling and venting the airbags in conjunction with shock absorbers, optimizing tire‑to‑ground traction and operator comfort by dynamically responding to axle movement relative to the frame.
Ride Height Adjustment Principle:
Ride height is maintained by the angle of the valve arm, which is typically connected via a linkage or chain. When the arm moves upward (load increases), the valve opens to admit air into the air spring, raising the vehicle/seat. When the arm moves downward (load decreases), the valve connects the bag to the vent, releasing air and lowering the vehicle/seat. The valve continuously seeks the neutral position where no air flows – this is the preset ride height. This automatic leveling ensures consistent performance regardless of load.
Selecting the Correct Replacement Valve
When choosing a replacement valve, consider the following factors:
- Application: Identify whether the valve is for a cab suspension, seat suspension, chassis, or trailer system.
- Air Flow Rate: Determine the required flow – low flow for seat applications, higher flow for chassis systems.
- Suspension Size & Tonnage Rating: Match the valve's capacity to the suspension's design parameters.
- Actuation Type: Choose push/pull or paddle style based on existing cab controls and operator preference.
Once these questions are answered, our range of valve options provides the perfect fit.
The Role of Air Supply in Suspension Systems:
Suspension systems are critical for reducing shock and vibration in trucks, construction machinery, and industrial equipment. A well‑designed suspension contributes to road‑holding, handling, and braking performance – directly impacting safety and driver experience. By isolating operators from road noise, bumps, and vibrations, quality suspension components like the YSR-P030 valve help maintain comfort and alertness throughout the workday.
About YSR Seating – Your Partner in Seat Components
YSR Seating Factory's mission is to design, build, sell, and support seating solutions in partnership with the world's most reliable manufacturers. We strive to be a leading global supplier of innovative seats and accessories, connecting the global supply chain. Located in Xi'an City, Shaanxi Province, China, we are a professional driver seat manufacturer with comprehensive testing facilities and strong technical advantages, backed by years of industry experience.
YSR SEATING is our dedicated driver seat brand, specializing in medium to heavy‑duty vehicle applications. Our product scope includes driver seats for heavy trucks, forklifts, excavators, cranes, RVs, buses, and a complete range of components: folding chairs, control valves, air springs, armrests, headrests, slide rails, safety belts, dampers, and other seat parts.
Global Customer Engagement
Exhibition Presence
Production, Packaging & Global Logistics
| Category | Specification |
| Monthly Production Capacity | 800 – 1,000 pieces (dedicated component line; scalable for large orders) |
| Standard Packaging | 60 pieces per heavy‑duty export carton – internal dividers prevent contact damage; carton dimensions optimized for container loading. |
| Bulk / Palletized Shipments | Available for volume orders: cartons consolidated on fumigation‑free wooden pallets, fully stretch‑wrapped and labelled for air or sea freight. |
| Main Export Ports | Shenzhen, Guangzhou, Shanghai, Qingdao (FOB, CIF, DAP, DDP terms supported) |
| Lead Time (1‑100 pcs, standard models) | 1 – 3 business days from order confirmation (in‑stock items ready for immediate dispatch) |
| Lead Time (>100 pcs or custom orders) | Approximately 10 business days (dependent on volume and specification) |
Contact YSR Seating Factory
For quotations, technical specifications, or to discuss your requirements for these precision pneumatic Truck Seat Valves, contact our components team today.
Tel: +86-029-81136503
Phone / WeChat / WhatsApp: +86-13991337062
Email: sales@ysrseats.com
WhatsApp: 008613991337062
🔧 Precision Pneumatic Valves – In Stock and Ready to Ship
Whether you need a single replacement valve or bulk quantities for manufacturing, YSR delivers quality, value, and responsive support. Request your quote now!
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