YK43F Pilot Oxygen Pressure Reducing Valve Features
1. Oxygen-Specific Safety Design
The entire valve is manufactured using oil-free and degreasing processes, with all components strictly degreased, cleaned and hermetically packaged. The flow channel design avoids dead ends where impurities can accumulate. Metal materials compatible with oxygen (such as brass, stainless steel, nickel-based alloys) are selected, eliminating the risk of combustion and explosion caused by oil contamination from the source.
2. Dual Pressure Stabilization and Precision Control
Adopts a two-stage control structure with separate pilot valve and main valve. The pilot stage achieves sensitive detection and amplification of pressure signals, while the main valve stage realizes precise large-flow regulation through a balanced piston. This design can stably reduce the inlet pressure (usually 15-20MPa) to the working pressure of 0.1-1.6MPa, with a control accuracy of ±2%.
3. All-Metal Hard Seal Structure
Key sealing parts adopt metal-to-metal hard seal form (such as stainless steel valve seat and PTFE-enhanced seal ring). It not only ensures the reliability of high-pressure sealing but also avoids the decomposition risk of non-metallic materials in high-pressure pure oxygen environment, providing excellent long-term operational stability.
4. Multiple Safety Protection Mechanisms
Comes standard with a bronze sintered filter to prevent pipeline impurities from entering the pilot system. The outlet end integrates an explosion-proof safety diaphragm or spring-loaded safety valve. The adjusting mechanism is equipped with an anti-loosening locking device. Some models are provided with pressure gauge shockproof fluid and flame arrester interface, forming a complete safety protection system.
5. Professional Operation and Maintenance
Equipped with a fine-adjustment handwheel with a dust cover, enabling stepless pressure regulation and preventing accidental contact. The valve body is marked with a permanent oxygen medium identifier. Maintenance must be performed by professional personnel using special tools. All components comply with the "Oxygen Safety Technical Regulations" standard, with clear regular inspection cycles to ensure safe and controllable whole-life cycle.