Scuba Pressure Reducing Valve is a critical safety component in Self-Contained Breathing Apparatus (SCBA) systems, ensuring controlled air flow, pressure regulation, and overpressure protection for users operating in hazardous environments such as firefighting, industrial rescue, and underwater operations.
Precision-engineered from high-strength brass (H59-1), this valve maintains consistent performance under extreme pressure conditions, with working pressures up to 300 bar (30Mpa). Designed to meet stringent safety standards, it includes a burst diaphragm, safety whistle, and automatic pressure relief system to safeguard the user in case of overpressure or low air supply.
Key Features
- ✅ Durable Material: Made from brass / H59-1 for corrosion resistance and durability under high pressure.
- ✅ Thread Compatibility:
- Connects to gas cylinder via male thread (M18 x 1.5)
- Connects to SCBA pressure release valve via female thread (G5/8″, 14 TPI)
- ✅ Over-Pressure Safety Burst Valve:
- Bursts at 41.5–45Mpa, quickly releasing excess pressure for user protection
- ✅ Stable Output Flow:
- When inlet pressure is 2–30Mpa, output pressure is 0.6–0.9Mpa with a flow rate of 32–38L/min
- ✅ Automatic Safety Valve:
- Engages at 1–1.5Mpa output pressure to prevent system damage
- ✅ Audible Low-Pressure Alarm:
- Whistle activates when air pressure drops to ≤0.5Mpa, warning the user to exit or switch systems
Applications
This SCBA cylinder valve is designed for professional use in:
- Firefighting SCBA systems
- Rescue operations
- Chemical and industrial plants
- Emergency response breathing equipment
- SCUBA diving cylinders (where thread compatibility allows)
- Military and civil defense gear
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | SCUBA Pressure Reducing Valve |
| Material | Brass / H59-1 |
| Origin | Nanjing, China |
| Dimensions | 133 x 70 x 36 mm |
| Working Pressure | 210bar / 300bar (30Mpa) |
| Safety Diaphragm Burst Pressure | 41.5 – 45Mpa |
| Output Pressure Range | 0.6 – 0.9Mpa |
| Constant Flow Rate | 32 – 38L/min |
| Safety Valve Trigger | 1 – 1.5Mpa |
| Alarm Whistle Activation | ≤0.5Mpa |
| Cylinder Thread Connection | M18 x 1.5 male thread |
| SCBA Thread Connection | G5/8″ (14 TPI) female thread |
Why Choose This SCBA Pressure Reducing Valve?
- Ensures reliable and stable air flow in life-critical situations
- Built with precision safety features including burst diaphragm and whistle
- Designed for seamless integration into existing SCBA systems
- Manufactured in Nanjing, China, known for quality engineering in safety products
- Compatible with high-pressure breathing air cylinders
Summary
If you’re looking for a reliable, high-pressure SCUBA or SCBA cylinder valve, this Pressure Reducing Valve offers robust construction, precise regulation, and critical safety features. From overpressure protection to audible alarms, it’s built to perform when lives depend on it.
