FYF-1 Air Vent Valve
Aerospace-Grade Pneumatic Venting Valve for Fluid and Air Systems
The FYF-1 Air Vent Valve is a compact pneumatic venting device designed to release trapped air from fluid systems and ensure stable pressure conditions in pipelines, hydraulic assemblies, and pneumatic circuits.
Manufactured with aerospace-grade machining standards, the valve provides reliable air release and pressure balance for high-precision equipment and industrial fluid control systems.
During the operation of air systems and various equipment, condensate, residual liquid, or impurities often accumulate in pipelines or cavities. If not drained in time, this can easily affect system efficiency and even damage equipment.
Our 14mm drain valve is specifically designed for low-pressure air conditions and is used for equipment maintenance, draining, and system cleaning. It is a simple yet crucial auxiliary component in air systems.
Technical Specifications
| Parameter | Specification |
| Model | Air Vent Valve / Pneumatic Vent Valve |
| Passage Diameter | 14 mm |
| Working Pressure | 34.5 kPa |
| Working Medium | Air |
| Installation Thread | M12×1 |
| Valve Diameter | Ø30 mm |
| Connection Diameter | Ø19 mm |
Key Features
Compact Precision Structure
Small and lightweight design allows installation in limited spaces within hydraulic or pneumatic systems.
Reliable Air Release Performance
Effectively removes trapped air from pipelines to maintain system stability and prevent pressure fluctuations.
Aerospace Manufacturing Quality
Produced using ultra-precision machining processes derived from aerospace sensor and guidance system manufacturing.
Corrosion-Resistant Materials
Manufactured with high-quality metal materials suitable for industrial environments.
Stable Pressure Operation
Designed for consistent operation under controlled pressure conditions with reliable sealing.
Applications
The FYF-1 Air Vent Valve is widely used in:
Aerospace fluid control systems
Hydraulic pipelines and equipment
Pneumatic systems
Industrial machinery
Oil & gas equipment
Downhole tools and instrumentation systems
Precision equipment pressure balancing systems
It is particularly suitable for applications requiring reliable air removal and pressure stabilization in compact system designs.
Customers Worldwide
MH has 70 years aviation valve design and manufacture experience for Chinese customers in aviation and aerospace, we also have cooperated some world leading customers for more than 20 years:
Testing Equipment
MH is equipped with comprehensive measurement and testing equipment, capable of meeting the measurement needs of complex parts and testing of various fluid accessories, providing customers with all-round quality testing services.
Why Choose MH
Aerospace Manufacturing Background
Founded in 1955, XAC MH MACHINING CO., LTD is a leading backbone enterprise in China's aerospace industry.
The company has successfully developed:
- China's first aviation gyroscope instrument
- The first missile autopilot system
- The first aviation attitude and navigation system
- The first aviation flight guidance system
In today's C919 national key project, the company serves as a core ODM supplier for precision sensors, temperature probe assemblies, and wing telescopic cable devices.
✔ 70 years aerospace manufacturing heritage
✔ Precision machining capability up to micron level
✔ Aerospace-grade verification and testing standards
✔ ODM/OEM development capability
✔ >20years export experience to Europe and North America
✔ Serving aerospace, defense, energy and high-end industrial sectors
Civil Industrial Capabilities
Leveraging aerospace engineering discipline, we have expanded into six major civil sectors:
- Low altitude radar systems
- High precision micro gears
- Downhole tool MWD functional components
- Fluid control components
Filters and filter elements
Quick couplings
Hydraulic valves
Pneumatic valves
Heat exchangers
- Refractory metals and alloys
Titanium, Niobium, Hafnium, Zirconium, Tungsten, Molybdenum, Tantalum and more
- ODM/OEM Machining
We provide one-stop ODM/OEM ultra-precision machining service from design to machining to surface treatment, for aerospace, medical, energy, semiconductor, oil & gas etc.
Quality and Certifications
Our manufacturing and quality systems meet strict aerospace standards.
AS9100D Aerospace Quality Management System
GJB9001C Military Quality Management System
ISO9001 Quality Management System
National High-Tech Enterprise Certification
Member of China Hydraulic Pneumatic & Sealing Industry Association
ODM / OEM Customization
We provide design and manufacture:
low altitude radar
downhole tools MWD components
micro gears
hydraulic valves
pneumatic valves
quick self-sealing couplings
filters and filter elements
any difficult-to-finish component
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