Corrosion Monitoring
Access Fittings
Pressure-rated fittings that allow safe installation and retrieval of corrosion coupons and probes without shutting down the process.
Overview
Access fittings provide a permanent connection point on a pipeline or vessel for installing and retrieving corrosion monitoring devices under full operating pressure. HovoyPetro access fittings feature a full 2-inch bore, precision-machined sealing surfaces, and are available in all standard ANSI pressure classes from 150# to 1500#.
Key Features
- Full 2-inch bore for standard coupon holder insertion
- Mechanical or hydraulic retrieval under full line pressure
- Rated from ANSI 150# (20 bar) to 1500# (260 bar)
- Body materials: carbon steel, SS316, alloy steel
- Flanged, welded, or threaded connections
- Compatible with all major coupon holder systems
Technical Specifications
| Bore Size | 2" full-opening (50.8 mm) standard. Custom sizes available. |
| Pressure Rating | ANSI 150#, 300#, 600#, 900#, 1500# |
| Temperature Range | -29 °C to 345 °C (per material and pressure class) |
| Body Material | ASTM A105 (CS), ASTM A182 F316 (SS), ASTM A182 F22 (alloy) |
| Connection | Flanged (RF/RTJ), socket weld, butt weld, threaded (NPT/BSP) |
| Sealing | Metal-to-metal primary seal, O-ring secondary seal |
Available Materials
Carbon Steel A105
Stainless Steel 316 / 316L
Alloy Steel F11 / F22
Duplex 2205
Custom on request
Applicable Standards
- ASME B16.5 — Pipe Flanges and Flanged Fittings
- NACE MR0175 / ISO 15156 — Sour Service
- ASME VIII Div 1 — Pressure Vessel Code
Applications
- Oil and gas pipelines
- Refinery process piping
- Water injection systems
- Offshore platforms
- Gas gathering systems
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