Special Ball Valve

PDS Ball Valve

RAYS PDS Ball Valve is designed for extreme conditions characterized by high temperatures, high pressures, and abrasive media. Manufactured from premium alloy steel and enhanced with advanced hardening techniques, it offers exceptional wear resistance for both the ball and the seat. The hard seal design ensures superior sealing performance in harsh environments. Additionally, the valve features a robust construction and is easy to operate and maintain, significantly reducing maintenance costs. It is an ideal choice for heavy industries such as petrochemicals, power generation, and mining.…
Product Description
RAYS PDS Ball Valve is designed for extreme conditions characterized by high temperatures, high pressures, and abrasive media. Manufactured from premium alloy steel and enhanced with advanced hardening techniques, it offers exceptional wear resistance for both the ball and the seat. The hard seal design ensures superior sealing performance in harsh environments. Additionally, the valve features a robust construction and is easy to operate and maintain, significantly reducing maintenance costs. It is an ideal choice for heavy industries such as petrochemicals, power generation, and mining.
Features & Benefits

● Reinforced Structure & Materials: Ball / Seat:

- Superhard alloy ball with specially developed coating to resist fretting wear.

- Elastic compensation sealing: Disc spring preloaded seat effectively prevents powder accumulation and buildup. Automatic compensation occurs after wear to maintain tight sealing. Dust-proof and wear-integrated stem bearing: PEEK composite graphite bearing reduces friction loss while providing dust protection. Validated by 800,000-cycle tests with particulate powder; virtually no medium enters the bearing moving area, resulting in zero stem wear.

● Optimized Flow Path: Anti-clogging design: Full bore passage with mirror-finish machining and streamlined seat inlet to avoid particle accumulation and jamming. Sealing performance meets ASME B16.104 Class VI.

● Easy Maintenance & Time Saving: Under normal operating conditions, the PDS ball valve delivers trouble-free service with an average cycle life of at least 1,000,000 cycles per year. Maintenance is quick and simple, requiring no special tools to save time and resources. Factory-tested spare part kits can be ordered prior to scheduled maintenance to minimize downtime. In addition, all trim kits are independently tested to guarantee sealing performance.

● Multi-layer Stem Sealing Design: Multi-layer packing plus low-emission configuration is adopted at the stem packing area. This superior wear-resistant assembly improves the reliability of stem sealing.

● Seat Wiper Design: The wiper scrapes off particles between the ball and seat, preventing medium agglomeration and wear on the sealing surfaces.


General Information

◎ Material: Carbon Steel, Stainless Steel, Alloy Steel 

◎ Nominal Size:NPS 1"~12”、DN 25~300

◎ Pressure Rate:Class 150~600、PN 20~100

◎ Temperature Range: -46°C~+538°C

◎ Operator: Manual, Pneumatic, Electric, etc...

◎ Application range: petroleum, chemical industry, metallurgy, light industry, power station, urban construction water supply, low temperature working conditions, and long-distance pipelines such as oil, gas, and natural transportation.


Technical Specification

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