Introduction
The SCUBAPRO MK25 EVO 1st Stage Dive Regulator is engineered for high performance and reliability in various diving conditions, including extreme cold water. It features advanced thermal insulation and optimized airflow to ensure consistent breathing performance.
Image: SCUBAPRO MK25 EVO 1st Stage Dive Regulator (DIN version). This image displays the primary component of the dive regulator system, highlighting its robust construction and port configuration.
Key features include the patented XTIS (Extended Thermal Insulating System) which enhances cold-water resistance by 30% and delays ice formation. Anti-freeze protection further increases breathing reliability in very cold water. The design incorporates two opposing high-pressure ports and five high-flow, plus one axial super high-flow low-pressure ports on a swivel turret, offering flexible hose routing options. External intermediate pressure adjustment allows for precise tuning by qualified technicians.
Setup
- Inspection: Before each use, visually inspect the regulator for any signs of damage, corrosion, or wear. Ensure all O-rings are present and in good condition.
- Connection to Cylinder Valve (DIN):
- Ensure the cylinder valve is clean and free of debris.
- Screw the DIN connector of the 1st stage regulator into the cylinder valve until hand-tight. Do not overtighten.
- Slowly open the cylinder valve to pressurize the system. Listen for any air leaks.
- Hose Attachment: Connect all necessary hoses (e.g., 2nd stage regulator, pressure gauge, BCD inflator) to the appropriate low-pressure and high-pressure ports. Ensure all connections are secure. The swivel turret for low-pressure ports allows for optimal hose routing.
- Function Check: Perform a pre-dive safety check, including checking the pressure gauge, testing the 2nd stage regulator for proper airflow, and verifying BCD inflation/deflation.
Operating
The MK25 EVO 1st stage regulator is designed for reliable air delivery during your dive. Its balanced piston design provides consistent performance regardless of tank pressure or depth.
- Breathing Performance: The regulator's high airflow capacity ensures easy breathing even under high demand.
- Cold Water Diving: The XTIS and anti-freeze protection features make this regulator suitable for extreme cold water environments, minimizing the risk of freezing.
- Monitoring Air Supply: Always monitor your air supply using your submersible pressure gauge (SPG) connected to a high-pressure port.
- Ascent: During ascent, breathe normally and continuously. The regulator will maintain consistent performance.
Maintenance
Proper maintenance is crucial for the longevity and safe operation of your SCUBAPRO MK25 EVO regulator.
- Rinsing: After each dive, thoroughly rinse the regulator with fresh, clean water while it is still pressurized to prevent water from entering the 1st stage. Once rinsed, depressurize the system and rinse again, ensuring the dust cap is securely in place over the inlet.
- Drying: Allow the regulator to air dry completely in a cool, shaded area. Avoid direct sunlight or heat.
- Storage: Store the regulator in a clean, dry place, away from direct sunlight, chemicals, and extreme temperatures. Avoid kinking hoses.
- Professional Servicing: The MK25 EVO regulator requires periodic professional servicing by an authorized SCUBAPRO technician. Refer to your SCUBAPRO warranty and service schedule for recommended intervals, typically annually or every 100 dives, whichever comes first. This includes checking the external intermediate pressure adjustment.
- O-Ring Inspection: Regularly inspect O-rings for cracks, cuts, or flattening. Replace as needed.
Troubleshooting
This section addresses common issues you might encounter with your regulator. For complex problems, always consult an authorized SCUBAPRO service center.
| Problem | Possible Cause | Solution |
|---|---|---|
| Air Leak from 1st Stage Connection | Damaged O-ring, loose connection, debris in valve. | Check and replace O-ring if damaged. Ensure connection is hand-tight. Clean valve and regulator inlet. |
| Hard Breathing / Restricted Airflow | Low tank pressure, clogged filter, internal issue, intermediate pressure out of adjustment. | Check tank pressure. Rinse regulator thoroughly. Seek professional service for internal issues or pressure adjustment. |
| Free-Flowing Regulator | Impact, debris, internal component malfunction, extreme cold. | Rinse thoroughly. If in cold water, try warming the 2nd stage. If problem persists, close tank valve and seek professional service. |
| Pressure Gauge Malfunction | Damaged gauge, hose leak, internal issue. | Inspect gauge and hose for damage. Replace if necessary. If issue persists, seek professional service. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | MK25 EVO 1st Stage Dive Regulator |
| Part Number | 10.713.030 |
| Type | Balanced Piston 1st Stage |
| Connection Type | DIN 300 bar |
| Thermal Insulation | Patented XTIS (Extended Thermal Insulating System) |
| Cold Water Performance | Improved by 30%, Anti-freeze protection |
| High Pressure Ports | 2 (opposing) |
| Low Pressure Ports | 5 high-flow, 1 axial super high-flow (on swivel turret) |
| Intermediate Pressure Adjustment | External |
| Weight (DIN 300) | 20.1 oz / 572 g |
| Airflow at 2900psi/200bar | >8500 l/min / 301 SCFM |
| Intermediate Pressure | 133-142 psi / 9.2-9.8 bar |
| Material | Chrome Plated Brass |
| Included Components | 1st stage regulator |
Warranty and Support
The SCUBAPRO MK25 EVO 1st Stage Dive Regulator comes with a limited warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official SCUBAPRO website.
For technical support, servicing, or warranty claims, please contact an authorized SCUBAPRO dealer or service center. Regular professional servicing is required to maintain warranty validity and ensure optimal performance and safety of your regulator.
Manufacturer: SCUBAPRO
