Understanding Pilot-Operated Valves – High-Performance Solutions
In modern industrial applications where high efficiency and system stability are essential, pilot-operated valves are a reliable and powerful solution. At Maniks, we design and manufacture robust pilot-operated valves specifically engineered to deliver superior overpressure protection, optimize performance, and support heavy-duty operations across various industries.
What Are Pilot-Operated Valves?
A pilot-operated valve is a type of pressure relief valve that uses a smaller pilot valve to control the opening and closing of a larger main valve. These valves are capable of handling higher pressure and greater flow capacity than traditional spring-loaded valves, making them ideal for demanding environments like the oil and gas industry, particularly in offshore and upstream operations.
Compared to conventional designs, Maniks’ pilot-operated valves offer a more compact, efficient, and stable performance, especially where high backpressure conditions exist.

How Do Maniks Pilot-Operated Valves Work?
Maniks’ pilot-operated valves are engineered for precision and reliability:
- The main valve piston is housed in a balanced design, eliminating fragile internal components.
- Both the inlet and dome (upper chamber) of the main valve maintain the same pressure.
- Due to the larger dome area, a downward force holds the valve shut until the system reaches a predefined set pressure.
- When this pressure is reached, the pilot valve opens, venting the dome and allowing the main valve to open rapidly, thereby discharging the excess pressure.
This mechanism ensures full capacity pressure relief while resisting premature valve opening due to system backpressure — a key advantage when multiple valves are connected to a shared flare system.
Key Benefits of Maniks Pilot-Operated Valves
- High Pressure and Flow Handling: Ideal for applications involving rapid pressure buildup.
- Stable Operation Under Backpressure: Prevents unintentional valve opening.
- Flexible Installation: Can be connected directly or through a remote sensing line.
- Precision Modulation: Allows the valve to stay open even during pressure drops, ensuring efficient pressure relief.
- Accessory Compatibility: Supports a wide range of system configurations and enhancements.
- Reduced Product Loss: Tight shut-off and minimal leakage help prevent environmental and operational loss.
Why Choose Maniks?
As a trusted pilot-operated valve manufacturer, Maniks offers a complete portfolio of advanced pressure control solutions tailored to the needs of modern industries. Our valves are engineered for tight shut-off, long service life, and reliable modulation, providing exceptional value for critical safety and process systems.
Whether you’re upgrading an existing pressure relief system or building a new one, Maniks valves are designed to meet the most rigorous standards across industries such as:
- Oil & Gas
- Petrochemical
- Power Generation
- Steel and Cement Plants
- Chemical Processing
Conclusion
With decades of experience and innovation, Maniks pilot-operated valves have become a go-to solution for industries that demand precision, efficiency, and safety. Our engineering excellence ensures your systems remain protected under even the most challenging conditions.
Explore Maniks’ range of pilot-operated valves and experience unmatched performance and reliability.