JOUKA METAL SEATED BALL VALVE

The metal seated ball valve is specifically developed for fibre-containing media, making it especially suitable for the high temperatures and abrasive media, commonly found in the paper industry. The valve design features a hard-chromed ball to add durability against abrasion and heat.

The ball and the metal seats are matched to each other, ensuring optimal leak tightness using a special process called lapping.

A valve with metal-to-metal seats can never be made 100% leak tight. During the Jouka lapping process, the ball and metal seats are paired to achieve the lowest possible leakage rate. Through lapping, a leakage rate B (EN 12266-1 ) is achieved, where, for example, a DN25 valve is allowed to leak only 0.45 ml/min and a DN100 valve 1.8 ml/min. The leakage is practically very minimal, but it is important to consider this, especially when the media is highly toxic or easily flammable gas.

General Technical Specifications:

• Sizes – from DN10 up to DN200.
• Pressure Classes – from PN6 up to PN40.
• Materials – include AISI 316L, AISI 304L, Aluminium, Carbon Steel, Duplex 2205, SuperDuplex 2507, Titanium Gr-2, Hastelloy, POM and more.
• Temperatures – from -55°C to +180°C typical (up to +300°C with metal sets/o-rings).
• Connections – include threaded (such as NPT and BSP), butt weld ends, flanged, hose connections, sample taking connections and other custom joints available on request.
• Design/Flow Pattern – 2-way and 3-way configurations, available in manual, pneumatic and electric actuation types depending on requirements.
• Suitable for Media – including Hydrogen, Natural Gas, Methanol, Ammonia, Oil/Gasoline, Liquors/Acids, Glycols, Powers, Glues and Inert Gases/Liquids.
• Certifications – to ISO9001, ISO14001, PED (2014/68/EU), 3.1 and 3.2 Material Certificates, ATEX, DNV, ABS, LR are all possible.

The tough surface of the hard-chromed ball repels dirt and allows for the lapping of the ball and seats. Additionally, the hard-chromed ball has good durability. Metal seats feature a scraper groove that keeps the ball clean when opening and closing the valve.

For a complete overview of the Jouka ball valve portfolio, click here to download the product guide.

For more information on the Jouka brand and their “go green” sustainability mission, click here to download the company brochure.