PL94 | Sense Line Protector
BelGAS CP Control Products
The BelGAS CP PL94 Sense Line Protector is an in-line, adjustable pressure limiting device designed to protect downstream instrumentation and control components from over-pressurization. It acts as a safeguard within sense and supply lines, preventing damaging pressure spikes from reaching critical equipment.
The PL94 allows flow under normal operating conditions, maintaining system communication and control. When upstream pressure exceeds the adjustable setpoint, the unit automatically shuts off downstream flow and prevents overpressure conditions. Once pressure returns to acceptable levels, the device resets and resumes normal operation.
This makes the PL94 an essential protection component in pilot-operated systems where maintaining signal integrity and equipment longevity is critical.
Typical Applications:
Sense line protection, supply line protection, pilot systems, and control valve instrumentation
Key Features
- In-line adjustable pressure limiting device
- Protects downstream equipment from over-pressurization
- Automatic shutoff when pressure exceeds setpoint
- Self-resetting operation once pressure stabilizes
- Single adjustment screw for simple setpoint control
- Intermittent venting capability during pressure spikes
- Maximum adjustable output pressure up to 300 PSIG
- High inlet pressure tolerance up to 4000 PSIG
- 1/4″ NPT connection
- Available in carbon steel or stainless steel
- Buna-N and fluorocarbon diaphragm options
- Temperature range from -40°F to 300°F depending on materials
PERFORMANCE ADVANTAGES
Why the P7100 Performs Where It Counts
DOWNSTREAM EQUIPMENT PROTECTION
Prevents pressure spikes from reaching sensitive instrumentation, reducing risk of damage and extending system life.
AUTOMATIC SHUTOFF AND RESET
Closes instantly when pressure exceeds the setpoint and reopens once conditions normalize, maintaining system continuity without manual intervention.
SIMPLE, PRECISE ADJUSTMENT
Single adjustment screw allows accurate control of output pressure within a 0–300 PSIG range.
BUILT FOR HIGH PRESSURE SYSTEMS
Handles inlet pressures up to 4000 PSIG while maintaining controlled downstream output, making it ideal for demanding oil and gas applications.