The ZPL270F Spherical-Housing Shut-Off Globe Control Valve is a high-performance linear motion fluid control valve. It features a normally closed pneumatic design with a single-acting spring-return cylinder in a high-in/low-out configuration, combining the functions of a check valve and safety valve.
The cylinder is equipped with ahigh-temperature fusible plug that provides automatic pressure relief and shut-off functionality in case of excessive temperature. During operation: Valve Opening: Air pressure acts on the cylinder, pushing the piston upward against the spring force.Valve Closing: When air supply is cut off, the spring force and medium pressure from the storage tank drive the piston downward. With its excellent sealing performance and rapid shut-off characteristics, this valve serves as a critical device for industrial fluid control, providing reliable safety protection and operational efficiency for industrial processes. This Valve with the key features such as: Linear stroke operation, Available in soft seal or metal seal versions, Fusible plug safety feature, combining check valve and safety valve functions&Fast response time. This valve plays a crucial role in industrial applications, ideal for critical shutoff applications in: Petrochemical plants, Gas distribution systems, Industrial process control, Safety protection systems, etc.
| Body Type | Straight-Through Type | |
| Size | DN15~DN350 | |
| D & M Std. | GB/T12237, HG/T3704, P1608 | |
| F2F Std. | GB/T12221, HG/T3704, ANSIB16.10 | |
| PT & I Std. | GB/T13927, API598 | |
| Conn. Std. | Flange Sealing Face | RF, FM/M, T/G, FF, RJ |
| HG/T20592-2009 | PN10, PN16, PN25 | |
| ASME B16.5 | 150LB | |
| JIS B2210 | 10K | |
| Sealing Type | Seat Type | Soft Seat |
| Stem Sealing Type | Packing Sealing | |
| Materials | Body/Bonnet Material | WCB, LCB, SS304, SS316L |
| Plug Material | WCB, F304, F316L | |
| Stem Material | 17-4PH | |
| Lining Material | FEP(F46), PTFE(F4), PFA | |
| Packing Material | PTFE | |
| Technical Parameters | Temperature Range | -30℃~160℃ |
| Flow Characteristic | Equal percentage(EQ%)/ Linear(LIN)/ Quick opening(QO) | |
| Leakage Level | IEC 60534-4, ANSI FCI 70-2, ASME B16.104 | |
| Max.Rotation | 90° | |
| Accessories | Actuator | Pneumatic Actuator ZP7100 Series |
| Electric Actuator ZP9000 Series | ||
| Main Accessories | Solenoid Valve, Air Filter Regulator, Limit Switch | |
| Others | Manual Mechanism, Dump Valve, Air-Controlled Valve, Lock-up valve | |
| Features | Description |
| Dependable Bonnet | Integrally forged bonnet for superior material density and structural stability, delivering enhanced pressure containment performance. |
| Superior Sealing | The packing adopts a combination of graphite and high-temperature-resistant PTFE, which provides better sealing performance, a lower friction coefficient, and lighter operating torque. |
| Rapid-Replacement Design | The plug & stem feature a "Quick-Connect" design, enabling switching between soft sealing & metal sealing configurations. |
| High-Gloss Stem | The packing-contact stem is precision-finished by CNC grinding, achieving superior concentricity and dimensional accuracy. |
| Linear-Stroke Spherical Structure | Seamless transition between Ultra-hot steam and low-temperature brine services with sealing performance achieving Class VI. |
| High-Performance Seat | The body & trims are precision-machined with dedicated CNC equipment, ensuring stable performance and high leakage integrity. |
| Multi-Application | Standard ball valve face-to-face dimensions ensure leak-proof performance across multiple service conditions and enable direct replacement. |
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