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GMC Electrical, Inc. / PRODUCT DETAIL
GMC Deltaperm Apache™
PART / SKU AG-5-SW
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Questions about this product? ↗The GMC DELTAPERM Apache™ is a silver/silver chloride reference electrode for permanent or portable use in deep-water saltwater and saline environments. Applications include offshore platforms, drilling rigs, pipelines, seawater docks and steel sheet piling.
Technology and construction
DELTAPERM uses a porous ceramic filter chamber with seawater contact that equalizes pressure across the sensing assembly. A slotted PVC outer housing protects the chloridized, coiled silver element while allowing seawater access for deep-water potential measurements.
Key advantages
- Pressure-equalizing chamber: The seawater-contact design addresses pressure differences across the filter chamber during submerged service.
- Back-flush access: The dedicated fitting allows filter media to be flushed without removing the cell.
- In-place serviceability: The silver/silver chloride element supports calibration and rechloridizing when required.
- Deployment options: The fitting accepts a weight attachment, while tapered end caps help reduce snagging around marine structures.
- Permanent or portable use: One electrode design supports installed monitoring and portable deep-water work.
Applications
Saltwater or saline-water monitoring at offshore platforms, drilling rigs, submerged pipelines, seawater docks and steel sheet piling. Confirm deployment requirements and lead length with GMC.
Technical specifications
- Housing: blue slotted PVC, 1.5 in. diameter × 8 in. long.
- Lead wire: standard 50 ft of #10 AWG RHH-RHW black cable.
- Element: chloridized, coiled .999-pure silver.
- Porous ceramic filter chamber with pressure-equalizing seawater contact.
- Tapered end caps help prevent snagging.
- 1/2 in. female pipe fitting for media back-flushing and weight attachment.
- Optional 5 lb weight.
- Design life: 20 years.
- Stability: ±5 mV with a 10 µA load.
- Operating temperature: 32°F to 150°F.
The back-flush fitting allows filter media to be flushed without removing the cell. The silver/silver chloride element supports in-place calibration and rechloridizing when required.
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