Radflo Schrader Nitro Valve SAE #4 Assembly
AY-RV-02
The Radflo SAE #4 Schrader Nitrogen Valve Assembly – AY-RV-02 is a replacement nitrogen charging valve designed for compatible Radflo off-road shocks, coilovers, and nitrogen-charged suspension systems. Featuring an SAE #4 connection and serviceable Schrader valve design, this assembly provides a reliable access point for charging, checking, and maintaining shock nitrogen pressure. It is an essential service component for shock rebuilds, nitrogen pressure maintenance, and replacement of damaged or leaking charging valves.
The AY-RV-02 assembly includes the Schrader valve, replaceable valve core, and protective cap in one convenient replacement unit. Designed for compatible nitrogen-charged off-road shocks, it is a practical solution for suspension shops, shock tuners, rock crawlers, prerunners, and custom off-road builds requiring dependable shock servicing components.
Includes:
- (1) Radflo SAE #4 Schrader Nitrogen Valve Assembly
- (1) Schrader Valve Core
- (1) Protective Valve Cap
Important: This assembly is intended for shock systems equipped with a compatible SAE #4 nitrogen charging port. Nitrogen charging equipment and nitrogen gas are not included. Verify the connection type and follow the shock manufacturer's service procedures before installation.
Specifications
| Manufacturer | Radflo Suspension Technology |
|---|---|
| Part Number | AY-RV-02 |
| Product Type | Schrader Nitrogen Charging Valve Assembly |
| Valve Connection | SAE #4 |
| Valve Type | Schrader |
| Valve Core | Included / Serviceable |
| Valve Cap | Included |
| System Type | Nitrogen-Charged Shock Absorbers |
| Shock Compatibility | Compatible Radflo Off-Road Shocks & Coilovers |
| Connection Compatibility | Shock Assemblies with SAE #4 Nitrogen Charging Ports |
| Function | Nitrogen Charging, Pressure Checking & Gas Retention |
| Installation Type | Replacement Nitrogen Charging Valve |
| Serviceability | Replaceable Valve Core & Protective Cap |
| Primary Application | Off-Road Shock Nitrogen Charging, Maintenance & Rebuilds |
| Required Components | Compatible Nitrogen Charging Equipment & Regulated Nitrogen Supply |
| Known Incompatibilities | Shock Assemblies Without a Compatible SAE #4 Charging Connection |
| Quantity | (1) Complete Valve Assembly |
Technical Notes:
- Designed for compatible SAE #4 nitrogen charging connections.
- Includes a serviceable Schrader valve core and protective cap.
- Provides an access point for nitrogen charging and pressure maintenance.
- Use regulated, dry nitrogen and appropriate shock charging equipment.
- Always follow the shock manufacturer's specified nitrogen pressure and service procedures.
- Shock systems must be safely depressurized before valve removal or replacement.
Fitment
The Radflo AY-RV-02 is designed for compatible nitrogen-charged off-road shocks and coilovers equipped with an SAE #4 nitrogen charging connection. Fitment is determined by the shock's valve port configuration rather than vehicle make or model.
Compatible Applications:
- Compatible Radflo Off-Road Shock Absorbers
- Compatible Radflo Coilover Shocks
- Nitrogen-Charged Shock Assemblies Using SAE #4 Charging Ports
- Off-Road Shock Maintenance & Rebuilds
- Rock Crawlers, Rock Bouncers & Trail Buggies
- Prerunners & Off-Road Racing Suspensions
- Custom Suspension Systems Using Compatible Radflo Shocks
Fitment Notes:
- Requires a compatible SAE #4 nitrogen charging connection.
- Not all Radflo shock models use the same charging valve assembly.
- Verify the existing valve connection and shock model before ordering.
- Designed for nitrogen-charged shock systems, not general-purpose tire inflation.
- Professional shock servicing and nitrogen charging are recommended.
- Charging equipment and nitrogen gas are sold separately.
Builder Note: A nitrogen charging valve is a small component, but it plays an important role in maintaining shock performance. A damaged valve core, worn sealing surface, or leaking connection can allow nitrogen pressure to escape, affecting shock response and consistency. Always inspect the charging port and verify the valve seals properly after servicing.
FAQ
What does a Schrader nitrogen valve do on an off-road shock?
A Schrader nitrogen valve provides a serviceable connection for charging and maintaining the nitrogen gas pressure inside a compatible shock absorber. The valve core seals the charging port to help retain the required gas pressure during normal operation.
What shocks does the Radflo AY-RV-02 valve fit?
The AY-RV-02 is intended for compatible Radflo nitrogen-charged shocks and coilovers using an SAE #4 charging connection. Verify the existing valve assembly and charging port before ordering because different shock models may use different connections.
Does this Radflo Schrader valve include the valve core and cap?
Yes. The AY-RV-02 includes one complete Schrader nitrogen valve assembly with the valve core and protective cap.
Why is nitrogen used in off-road shocks?
Nitrogen provides a stable gas charge that helps maintain pressure within the shock and reduces the likelihood of oil cavitation during demanding suspension operation. Dry nitrogen is preferred because it contains minimal moisture and provides more consistent performance under changing temperatures.
Can a leaking Schrader valve affect shock performance?
Yes. A leaking charging valve can allow nitrogen pressure to escape, potentially reducing damping consistency and increasing the risk of cavitation. If a shock repeatedly loses nitrogen pressure, inspect the valve core, valve assembly, and other internal sealing components.
Can I replace only the Schrader valve core?
The assembly uses a serviceable Schrader valve core. Depending on the condition of the valve body and sealing surfaces, replacing the core may resolve a leak. If the valve body or connection is damaged, replacing the complete assembly may be necessary.
What nitrogen pressure should I use with this valve?
Nitrogen charging pressure depends on the specific shock model, construction, and intended application. Always follow Radflo's recommended charging specifications for your shock. Do not assume that all shocks use the same pressure.
Can I use compressed shop air instead of nitrogen?
Dry nitrogen is recommended for nitrogen-charged performance shocks. Ordinary shop air may contain moisture that can affect internal components and pressure consistency. Use appropriate regulated nitrogen charging equipment when servicing the shock.
Does the AY-RV-02 include nitrogen charging equipment?
No. This product includes the Schrader valve assembly, valve core, and cap only. Nitrogen gas, regulators, charging tools, and pressure gauges are not included.
Can I replace the valve while the shock is pressurized?
No. Nitrogen-charged shocks contain stored pressure that can cause serious injury if components are removed improperly. The shock must be safely depressurized according to the manufacturer's service procedure before removing or replacing the valve assembly. Professional servicing is recommended.
