ZJHR-1 O-Port Shutoff Ball Valve
The valve is designed to internationally recognized standards and paired with widely adopted pneumatic and electric actuators. The result is a highly reliable integrated assembly. The valve features a compact structure, lightweight construction, and small footprint, making installation, disassembly, and routine maintenance straightforward. It is used for controlling high-viscosity, fibrous, and particulate-laden media.
Technical data
| Nominal Pressure | Class 150–Class 2,500; PN16–PN420 | Nominal Diameter | DN6–DN1,000; 1/8”–40” |
| Operating Temperature | -100°C to +550°C | End Connection | Flanged, welded, threaded, and other configurations |
| Leakage Rating | Class V, Class VI, API598 |
Features & Benefits
Unobstructed Flow Path with Minimal Resistance
This valve incorporates a full-bore O-port ball and straight-through flow passage design to provide a largely unobstructed path with a low flow resistance coefficient. This feature effectively reduces the risk of clogging and media entrapment while maintaining consistent efficiency when transferring high-viscosity, fibrous, and particulate-laden media.
High Sealing Integrity with Low Leakage
This valve is available with soft-seated (e.g., PTFE) and metal-seated configurations. Soft seats provide bubble-tight shutoff. Metal seats feature precision-lapped surfaces and hardening treatment. The valve is suitable for demanding applications involving high temperature or particulate-laden media. Leakage performance meets API 598 testing requirements and satisfies sealing requirements for rigorous industrial service.
Comprehensive Safety Design
The bottom-loaded stem design helps prevent unintended stem blowout under internal pressure and maintain operational safety. Should cavity pressure rise abnormally due to media vaporization at elevated temperatures, the seat is displaced by media thrust, enabling automatic pressure relief and maintaining safe valve operation.
Inherently Fire-Safe and Antistatic Design
The fire-safe and antistatic construction is certified to API 607 and API 6FA fire test standards. It maintains metal-to-metal sealing integrity even after soft seals are compromised by fire. A conductive spring is installed between the valve body, stem, and ball to dissipate static electricity generated during operation, reducing the risk of ignition in the presence of flammable or explosive media.
Compact Design with Convenient Maintenance
The valve features a lightweight construction and small footprint, significantly reducing installation space compared with conventional valves. Interchangeable components make installation, disassembly, and routine maintenance straightforward, effectively reducing on-site maintenance costs and downtime.
Certifications
Applications
Chemical
Widely used across five major process units and facilities—corrosive media transfer, reaction and separation, material storage and handling, utility systems, and specialty chemical processes—with core functions including rapid media shutoff, flow regulation, flow direction switching, and emergency shutoff.
Oil & Gas
Spans the entire process chain—from upstream production, through midstream long-distance transportation and storage, to downstream refining and processing—with core functions including media shutoff, flow regulation, and emergency shutoff.
Power Generation
Primarily used in steam, feedwater, cooling, heat transfer oil, and hydrogen transfer systems for thermal power, nuclear power, new energy, and hydro/gas-fired power stations.
Metallurgy
Covers ironmaking, steelmaking and continuous casting, rolling, and auxiliary utility systems, with core functions including high-temperature, high-pressure media shutoff, cooling water flow regulation, safe isolation of fuel gas, and emergency shutoff.
Pulp and Paper
Primarily used across nine major process units—alkaline pulping, bleaching, chemical preparation, alkali recovery, coating, wastewater treatment, white water recovery, steam, and automation control—with core functions including corrosive media shutoff, pulp stock flow control, precise chemical metering, and emergency shutoff.
Case Studies
PetroChina Sichuan Petrochemical Co., Ltd.
Domestically manufactured high-temperature, high-pressure ball valves have been successfully commissioned at the 2.7 million t/a VGO hydrotreating unit, demonstrating stable field performance and reliable operation.
Luxi Chemical Group Co., Ltd.
High-temperature, high-pressure ball valves deployed on syngas piping have demonstrated strong performance, maintaining stable operation in demanding conditions for over eight years.
