The ZZY Series Self-Operated Pressure Regulators use the process medium itself as the driving force, eliminating the need for external electricity or pneumatic supply. This energy-efficient design ensures stable, reliable pressure control in remote or power-limited environments.

Engineered for fast response and consistent regulation accuracy (≤10% deviation), the ZZY series supports a wide range of industrial pressure management applications.

Power-Free Operation

• Medium-driven self-operated mechanism

• No external power required

• Energy-saving and low maintenance

• Ideal for hazardous or remote installations

Multiple Valve Structures

• ZZYP: Single-seat design for standard applications

• ZZYM: Cage-guided type for enhanced stability

• ZZYN: Double-seat design for improved sealing and precision

Allows selection based on leakage control and flow requirements.

Bonnet Options for Different Conditions

• Standard bonnet for general use

• Long-neck bonnet for wider pressure adjustment range

• Heat-radiation bonnet for 350°C–550°C applications

Supports high-temperature process environments.

Wide Industrial Compatibility

• Size range: 1/2" to 12"

• ANSI Class: 150–600LB

• Temperature range: –50°C to +250°C

• Body materials: WCB, WC6, LCB, CF8, CF8M, CF3, CF3M

Suitable for petroleum, chemical processing, power generation, metallurgy, food processing, textile, and building utilities.

The ZZY Series delivers stable, energy-independent pressure regulation with flexible configuration options—ensuring safe and reliable system performance across gas, steam, and liquid pipelines.

Contact us for sizing assistance and technical support.