Displaying items by tag: Stafsjö

In 1928 our knife gate valve manufacturing started in close co-operation with nearby pulp and paper mills. Now it is time for the eighth knife gate valve generation, the MP, which is a result of market driven requirements and experienced engineering throughout the years. Stafsjö has introduced one new knife gate valve every year now the last three years. 2009 we introduced the slurry valve SLV, primarily for the mining business. 2010 we introduced our HL, a slim line version of our HG valve with through-going gate, and now 2011 the MP.

– We are proud to announce Stafsjö’s latest development for the Pulp & Paper Industry. The MP valve represents the new generation of shut-off valves which fully corresponds to today’s market demands such as bi-directionality, full bore and minimum maintenance, says Thomas Carlson, CEO of Stafsjö.

Product features
The MP is a bi-directional full bore valve which together with its special shut-off design makes it suitable for many different applications – it is a true Multi Purpose valve.

MP has a one piece body design in stainless steel. For operation reliability in applications with corrosive or clogging media the valve body comes with integrated purge ports as standard. The MP is also supplied with Stafsjö’s retainer ring system which can be combined with several seat materials and this makes it easy to optimize the valve to specific process conditions. It also offers smooth and cost-efficient maintenance. The valve has a gate support and casted bottom support cams to obtain bi-directional sealing. The gate support is available in different materials.

The top work consists of aluminium beams and stainless steel tie rods which gives good corrosion resistance and stability at maneuvering. Several actuator types are available to choose from as standard as well as accessories.  All remote operated valves are supplied with gate guards in stainless steel.

Sealing principle
When the valve is operated from open to closed position, the gate effectively cuts through the media. This is facilitated by the inner cavity of the valve body and the bevel edged gate. In closed position the gate is pushed against the seat and the gate support ensure a bi-directional sealing together with the bottom support cams that stabilizes the gate.

The gland box is equipped with three layers of our TwinPackTM and a box bottom scraper, which gives high operation reliability and prevent the media from reaching surrounding environment.

Accessibility
Stafsjö is a recognised supplier of knife gate valves to process industries worldwide. Together with our sister company Ebro Armaturen and external sales partners we are able to provide fast deliveries, high quality service and support to local markets. We strive to be the most accessible, reliable and cost-effective supplier of knife gate valves.

Stafsjö develops, manufactures and globally markets knife gate valves that meet customer needs for shut-off and flow control in the process industry. We strive to be the most accessible, reliable and cost-effective supplier of valves. Stafsjö was founded in 1666 and is today one of Sweden’s oldest works still operating.

Since 2005 Stafsjö is part of the German family owned Bröer Group that also consist of Ebro Armaturen, which is a leading supplier of butterfly valves, pneumatic and electric actuators.

PRODUCT RANGE DEVELOPED FOR PROCESS INDUSTRIES WORLDWIDE Stafsjö’s knife gate valves are used within various process industries and there are several reasons to this. Proven operational reliability, excellent quality and the easiness to adapt our valves to required media, application and need are some reasons.

Traditionally pulp & paper and water & sewage have dominated, but we are expanding our business in biogas, mining and other industries. Solutions and products for the global pulp and paper industry have always been a cornerstone in our business and large proportion of our resources, both production capacity and research and development, are devoted to serve this industry.

Our engineering department is continuously, in cooperation with the industry, developing new products and solutions for general use or specific applications.

Our latest contribution, the HL valve, is primarily developed for pulp (concentration > 5%), caustic liquor, reject and waste. It is designed for similar applications as our well known HG and our high pressure valve HP, but in lower pressure classes. Our product range consists of 14 different models in sizes DN 50 up to DN 1600 and several are specifically developed for pulp and paper applications.

All valves are modular designed making them easy to be customised with gate, seats and box packings according to media and requirements, as well for actuators and accessories. The retainer ring concept making maintenance smooth and simple.

GLOBALLY ACTIVE AND LOCALLY COMMITTED The vast majority of our production is exported to markets in Europe, China, South East Asia, South Africa, South America, Canada and USA. We are working very closely with our sister company Ebro Armaturen and external sales partners in other countries in order to provide fast deliveries and high quality service and support to local markets worldwide.

For more info contact:
Johan Magnusson
+46 11 393 100
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