Three-piece ball valves in this series use a thicker-walled body and metal tie-rod connection to deliver increased pressure resistance under high-temperature process conditions, making them a durable choice for demanding large-diameter isolation duty.
Key characteristics:
• Thicker body wall sections and a metal-connected three-piece construction provide added mechanical strength and pressure resistance compared with thinner, all-plastic bodies.
• The strengthened construction is engineered for high-temperature, high-pressure processes that call for larger diameter ball valves, giving the valve a longer service life under sustained thermal and pressure loading.
• No installation direction requirement simplifies specification and fieldwork, since the valve can be fitted either way in the line without concern for flow orientation.
• The design is protected under patent No. ZL201810846521.7, reflecting engineering work specific to this valve's body and sealing structure.
The three-piece body arrangement, joined by metal tie rods, allows the center section containing the ball and seats to be removed from the line for maintenance without disturbing the end connectors welded or bonded into the pipeline, reducing downtime during servicing.
Typical applications include chemical processing lines operating at elevated temperature and pressure, large-diameter distribution headers, and industrial systems where standard-duty ball valves would be undersized for the thermal or pressure demands of the process. This valve style is a practical option where plants need a large-bore ball valve capable of sustained performance beyond the limits of lighter three-piece or single-piece plastic ball valves.
