Stabplate Acid Injection
Acid injection is used to help eliminate calcareous growth / algae from the mechanisms on the MQC stabplate when subsea for long periods of time.
To reduce problems when de-mating, an acid injection port which is incorporated into the design, will allow the critical areas to be washed with a solution that dissolves the marine growth and avoids possible problems.
The addition of the acid injection system to the existing MSCM fly to place stab plate assembly was undertaken so as to not affect the fit, form and function of the standard assembly.
| Fluid Used | Oceanic CW | |
| Pressure of Acid Injection | 10-15 BAR | |
| Duration of Injection | 10 Mins | |
| Duration to Dissolve Growth | Up to 30 Mins | |
| Storage | 5 – 40⁰C |
| Appearance | Slightly Viscous Clear Liquid | |
| Specific Gravity @ 15.6⁰ C (60⁰F) | 1.18 | |
| pH | 1.1 | |
| Pour Point | <-5⁰C (23⁰F) | |
Approx Viscosity cSt 4⁰C |
11.3 |
| Stainless Steel 316L |
| Duplex UNS S31803 |
| Super Duplex UNS S32750 |
| Super Duplex UNS S32760 |
| Nitronic 50 HS |
| Hiduron 130 |
| Marinel 220 Hex Head Bolt |
| Inconel (Shear Bush) |
| Inconel X750 (Indicator Spring) |
| Titanium |
| Acetal |
| Nitrile 90° (O Seal) |
| Elast-o-Lion 101 (O Seal) |
| Peek |
| ROV Plastic Handle (Poly Propylene) |
| PTFE |
| Nylon 6 |
| Label (Alfresco) |
- Readily disperses in seawater
- 100% biodegradable
- Does not destroy metals or polymers during operation
- Soaks into calcium deposits to dissolve them
- Can be supplied with coloured dye for visibility
- Range of viscosities available for varying applications
- Meets stringent global environmental acceptability requirements
- Oceanic CW can be used subsea or onshore
- Acetal is made from a high grade series
- Fully qualified for chemical compatibilities
- Full project list available on request