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Configuration: PFB-0420MA 4–20mA position feedback box integrated with T Series double-acting hydraulic actuator for continuous valve position monitoring.
PFB Valve Position Feedback Box
The PFB-0420MA valve position feedback box provides 4–20mA continuous position monitoring for INJOY hydraulic actuator systems. Engineered with a “subsea-first” design philosophy, it converts mechanical valve movement into a stable analog signal for shipboard, submerged and offshore applications. The PFB box provides a high-reliability alternative to traditional limit switches and supports direct connection to PLC systems in marine valve remote control systems (VRCS).
Application: Marine valve remote control systems (VRCS)
Output Type: 4–20mA analog signal
Operating Voltage: 10–30 VDC, typical 20 VDC
No-Load Supply Current: ≤ 12 mA
Load Resistance: ≤ 1000 Ω, typical 500 Ω
Residual Ripple: ±125 µA
Accuracy: ≤ 5%
Ambient Temperature: -20°C to +70°C
Sensor Standard: EN IEC 60947-5-2
Cable: 1.8m 3-core PVC, optional 30–200m flame-retardant cable
Protection: IP68
Triple-Layer Sealing Protection
Proprietary solid-state encapsulation and redundant internal sealing help maintain dry, stable operation under hydrostatic pressure, humidity and condensation.
Pepperl+Fuchs Analog Sensor Integration
Integrated with Pepperl+Fuchs analog sensing technology for stable 4–20mA continuous valve position feedback.
Heavy-Duty Marine Construction
Cast from C95800 nickel-aluminum bronze with 316L stainless steel interfaces for excellent resistance to seawater corrosion and marine biofouling.
Submersible Operating Depth
IP68 rated and system-verified for depths up to 330m / 1,083ft when configured with D-Series actuators and bronze top cap. Tiered submersible configurations are available for T-Series 5m, S-Series 50m and D-Series 330m applications.
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