Description
The SUCO ESI North Amercia’s PR3913 is a valve-mountable subsea pressure transducer designed for the oil and gas industry. It provides reliable, high-accuracy pressure measurement in extreme underwater environments and is optimized for direct mounting on standard control valve flanges.
Features
- Pressure Range: Up to 1,000 bar (14,500 psi)
- Diaphragm Material: Titanium alloy for excellent corrosion resistance
- Output Signal: 4–20 mA, two-wire configuration
- Accuracy: Optional high-accuracy version available
- Hyperbaric Testing: Tested to 3,300 meters depth
- Environmental Stress Screening (ESS): Standard for quality assurance
- Compliance: cIECEx option (includes M1 for mining)
- Documentation: Full certification and comprehensive documentation package provided
- Compatibility: Suitable for ROV and deep-sea test equipment
- ATEX/IECEx option available (includes M1 for mining applications)
Atex Certificate
Advantages
Sensor Technology
- Silicon-on-Sapphire (SoS): Ensures high stability across wide temperature ranges.
- High Over-Pressure Resistance: Maintains performance under extreme pressures.
- Minimal Hysteresis: Accurate readings even under fluctuating pressures.
- Superior Insulation: Sapphire insulator allows operation across wide thermal ranges.
Mechanical Design
- Welded Titanium Body: Wetted parts comply with NACE standards for corrosion resistance.
- Pressure Connection: 8 mm stem with dual redundant O-ring grooves.
- Inconel 625 Fitting: High chemical resistance and mechanical integrity.
- Depth Resistance: Withstands up to 3,000 meters external pressure; secondary containment up to 1,650 bar.
Electrical & Signal Reliability
- Two-Wire 4–20 mA Output: Stable, repeatable, and simple to integrate.
- Electrical Connection: PTFE Raychem Flexlite leads for durability under harsh conditions.
Testing & Certification
- Hyperbaric test certificates available up to 3,000 meters.
- ESS testing ensures reliability under environmental stress.
- Comprehensive documentation for quality assurance and traceability.
- ATEX/IECEx option available (includes M1 for mining applications)

Applications
- Subsea Oil & Gas: Mounts directly to industry-standard control valve flanges on “Christmas tree” assemblies.
- Deep-Sea Test Equipment: Suitable for permanent immersion in pressurized dielectric oil.
- ROV & Autonomous Monitoring: Designed to interface with remotely operated underwater equipment.
- Subsea production and control systems
- Hyperbaric test and calibration equipment
Download:
FAQ
Q1: What is the maximum operating depth of the PR3913?
A: The transducer can operate under external pressures equivalent to 3,000 meters of water depth.
Q2: What makes Silicon-on-Sapphire technology better than standard sensors?
A: SoS provides superior stability, minimal hysteresis, and wide temperature tolerance, making it ideal for extreme subsea environments.
Q3: Can this sensor handle corrosive fluids?
A: Yes, the titanium diaphragm, welded body, and Inconel 625 fittings ensure high corrosion resistance.
Q4: What output signal does it provide?
A: Standard 4–20 mA two-wire output, ensuring compatibility with most subsea monitoring systems.
Q5: Is high-accuracy measurement available?
A: Yes, an optional high-accuracy version is offered for applications requiring tighter tolerance.




