P8750 | Liquid Level Controller
BelGAS CP Control Products
The BelGAS CP P8750 Liquid Level Controller is a low-pressure, pneumatically operated controller designed to monitor and control liquid levels in separators, treaters, and similar vessels. Built with a float and arm assembly, it delivers reliable on/off control based on changes in liquid level.
As illustrated in the operation diagram on page 3, rising liquid levels increase buoyancy on the float, causing the arm to rotate an internal stem and actuator assembly. This motion engages a pneumatic toggle, generating a clear output signal. As the level drops, the mechanism reverses, providing consistent switching between control states.
The P8750 features a no-bleed pneumatic valve design and adjustable control arms, allowing operators to fine-tune sensitivity and response for specific applications. Its rugged ductile iron body and stainless steel internals ensure long-term durability in demanding oil and gas environments.
Typical Applications:
Low-pressure separators, heater treaters, and vessels requiring liquid level monitoring
Key Features
- Pneumatically operated liquid level controller
- Float and arm mechanical sensing design
- No-bleed pneumatic valve operation
- Working pressure up to 500 PSIG
- Operating temperature range -20°F to 212°F
- Supply pressure: 100 PSI standard (250 PSI optional)
- Adjustable arm design for sensitivity control
- 4″ grooved body mounting configuration
- 3.5″ x 6″ stainless steel float standard
- Ductile cast iron body with stainless steel internal components
- Fluorocarbon seals standard with optional nitrile
PERFORMANCE ADVANTAGES
Why the P7100 Performs Where It Counts
RELIABLE LEVEL-BASED CONTROL
Float-actuated design provides consistent and repeatable switching based directly on liquid level changes.
NO-BLEED PNEUMATIC OPERATION
The valve design eliminates continuous bleed, reducing gas consumption and improving efficiency in field applications.
ADJUSTABLE CONTROL RESPONSE
Adjustable actuator arms allow operators to fine-tune sensitivity and switching points for different process conditions.
BUILT FOR FIELD DURABILITY
Ductile iron construction and stainless steel internals provide long service life in harsh oil and gas environments.