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Eleven products covering the complete regulator service ecosystem: adjustment tools (flat and hexagonal), Christo Lube MCG 111 oxygen-compatible grease in 5g and 60g, an intermediate pressure gauge, second stage cover remover, complete Scuba service tool kit, regulator service labour for balanced and unbalanced first and second stages, a service training course, and the Sopras Lab service apron. For model-specific service kits (seals, seats, diaphragms), see the Replacement Parts category.
Regulator Service Tools and Support
Regulator maintenance falls into two distinct areas: in-house service using tools and kits for divers trained in regulator maintenance, and professional service through an authorised service centre. Sopras Tek supports both: individual tools and lubricants for self-service, and official service packages for balanced and unbalanced first and second stages carried out by Sopras Tek technicians.
The service packages (SKU 020.01/2/3/4 for balanced, SKU 021.01/2/3/4 for non-balanced) cover the complete service of a single stage — parts and labour — and are the recommended route for divers who prefer their regulators serviced professionally. Prices range from 9–45 € per stage depending on stage type and model complexity.
Key Tools and Consumables
The Flat REG ADJUST TOOL (SKU 652005) and Exagonal REG ADJUST TOOL (SKU 652006) are used to set intermediate pressure during first stage service. Different models use flat or hexagonal adjustment ports; having both tools is necessary for a complete service capability across the Sopras Tek range. The Intermediate pressure gauge (SKU 562003) connects to an LP port during service to verify IP is within specification. Without an IP gauge, it is impossible to confirm the regulator has been set correctly after service.
Christo Lube MCG 111 is the specified oxygen-compatible lubricant for all Sopras Tek regulators. Available in 5g (SKU 801111) for single-regulator service and 60g (SKU 801112) for workshop use. This is a petroleum-free, fluorinated grease that meets military specification for oxygen service and is compatible with all regulator o-rings and seals. The Scuba service tool kit (SKU 652024) is a comprehensive tool set covering picks, spanners, and tools for complete 1st and 2nd stage service across multiple models.
What to Look For
- IP gauge before self-service: An intermediate pressure gauge is not optional for regulator service — it is the only way to verify the regulator is delivering the correct IP after parts replacement. The flat and hexagonal adjustment tools without an IP gauge produce a result that cannot be verified as correct.
- Christo Lube MCG 111 for all service: Regardless of whether the regulator will be used on oxygen, MCG 111 is the specified lubricant. Using petroleum-based greases in regulators that may later be used on O₂ creates a contamination risk; standardising on oxygen-compatible lubricant for all service simplifies the process.
- 5g vs. 60g Christo Lube: The 5g tube is sufficient for one or two regulator overhauls. If you service multiple regulators or run a service workshop, the 60g tub is more economical. Christo Lube has a long shelf life when stored sealed at room temperature.
- Service course for DIY technicians: The Regulator service course (SKU 020.00, 150 €) provides hands-on training in Sopras Tek regulator disassembly, parts replacement, and IP adjustment. This is the appropriate prerequisite before self-servicing regulators; attempting service without training risks incorrect IP setting, improper o-ring seating, or contamination of oxygen-rated components.
- Sopras Lab apron: The service apron (SKU 652030/1-4, available in variants) provides a clean, organised work surface with pockets for small parts. Small components — HP seat, IP seat, springs, o-rings — are easily lost during disassembly; a dedicated service surface with compartments reduces the risk significantly.
Maintenance and Care
Service tools should be stored clean and dry. Metal adjustment tools kept near saltwater equipment corrode; store them in a dry case or tool roll. The IP gauge Schrader connector (LP port fitting) should be protected with a cap when not in use to prevent ingress of salt and contamination. Christo Lube tubes and tubs should be sealed tightly after use to prevent moisture absorption and contamination. Service aprons should be washed after each service session to prevent cross-contamination between oxygen and non-oxygen components.
FAQ
What intermediate pressure should I set after a first stage service?
Target IP varies by model. Typical balanced first stages in the Sopras Tek range are set at 8–10 bar above ambient pressure. The service manual for the specific model specifies the target IP and tolerance. Connect the IP gauge to a free LP port, pressurise the regulator, read the gauge, and adjust using the flat or hexagonal adjustment tool until the reading falls within the specified range. Recheck after breathing through the second stage, as IP can settle slightly after initial breathing load.
Is Christo Lube MCG 111 suitable for all regulator o-rings?
Yes. Christo Lube MCG 111 is compatible with all standard regulator o-ring materials including nitrile (NBR), EPDM, and HNBR, as well as the fluoroelastomer and silicone seals used in some diaphragm first stages. It is the specified lubricant for Sopras Tek regulators and is safe for use on all internal components including HP seat, IP seat, and piston or diaphragm seals. Its oxygen compatibility means it can be used on all regs regardless of intended gas service.
How long does a professional regulator service take?
A full service of a single first and second stage typically takes 1–2 hours at a service centre, plus turnaround time. Sopras Tek offers service packages for balanced and non-balanced first and second stages — contact the service centre to confirm current lead times. For self-service, trained technicians typically complete a single stage service in 30–60 minutes once proficient; first attempts take longer during familiarisation with the specific model.
What does the regulator service course cover?
The Regulator service course (SKU 020.00) covers disassembly and reassembly of Sopras Tek 1st and 2nd stage regulators, parts identification and inspection, IP setting using adjustment tools and the IP gauge, lubrication procedures, and pre-dive testing. It is a hands-on course rather than theoretical training. Completion qualifies the diver to self-service Sopras Tek regulators using the model-specific service kits. Contact Sopras Tek for course scheduling and availability.
Can I service my regulator myself without the course?
Self-service without training is possible for experienced technical divers familiar with regulator mechanics, but is not recommended for beginners. The main risks are incorrect IP setting (too high causes hard breathing effort; too low risks free-flow or failure to deliver gas at depth), improper o-ring seating causing leaks, and contamination of oxygen-rated components. The service course removes these risks by providing hands-on practice before working on your own equipment. At a minimum, the Scuba service tool kit, IP gauge, model-specific service kit, and Christo Lube are required before attempting self-service.