Rötelmann GmbH

Rötelmann specialises in ball valves. You will recognise this on the basis of our easy to use, high quality products. Our combination of practical design, future-orientated innovation and proven product quality has been delighting our customers for over 100 years. Our design engineers are familiar with the special requirements of the various different areas of application and sectors down to the finest detail.
Even our standard range, comprising popular 2-way ball valves, multi-way ball valves and ball valve combinations, includes additional solutions for specialist applications. Our range is rounded off by individually tailored custom productions. These solutions demonstrate that our ideas for control, shut-off and measurement technology are often a step ahead of current market developments.
ias para a tecnologia de controle, paragem e medição são muitas vezes um passo à frente dos desenvolvimentos atuais do mercado.

About our valves

Válvulas Rötelmann e válvulas de esfera – Sempre aberta a novas ideias

As válvulas Rötelmann de esfera de 2 vias ou de múltiplas vias, sistemas de válvulas de esfera, válvulas e acessórios estabelecem novos padrões. Desde que a empresa foi fundada há mais de 100 anos, que a Rötelmann se tem mantido a par de novos desenvolvimentos e hoje é pioneira no campo de controle, de paragem e tecnologia de medição. Ser capaz de desenvolver novos produtos que assumem tarefas cada vez mais complexas requer muito conhecimento e a tecnologia apropriada. A Rötelmann atende a esses requisitos graças aos seus especialistas qualificados, um moderno parque de máquinas e uma tecnologia de design inovadora.

Seja no sector offshore, geração de energia, engenharia mecânica ou em uma das inúmeras áreas de aplicação – Na Rötelmann pensa-se e pensa-se muito para frente, a fim de que as suas unidades de paragem e controle provem em termos de precisão, vida útil e facilidade de uso, e que elas continuem no futuro e por um longo período de tempo a cumprir a tarefa em mãos.

2-way ball valves

Our 2-way ball valves are made from stainless steel, steel or aluminium. They can be used at up to 1500 bar. We offer numerous variants for different intended applications. For example, our 2-way ball valves can be automated with pneumatic, electric or hydraulic actuators, and can be supplied with visual displays, limit switches, proximity switches and locking devices. And so that everything fits together properly, we also produce all common types of thread, flange and plug connectors, as well as ball valves, for manifold mounting and for manifold insertion in cartridge form.

Multi-way ball valves

Our multi-way ball valves are produced in nominal widths DN 4 to DN 65, with floating ball or trunnion ball. They are also available for manifold mounting. The enclosures are made from stainless steel, steel or aluminium and are designed for use at up to 500 bar. For precise automatic control, we can optionally supply our multi-way ball valves with pneumatic, electric or hydraulic actuators, as well as visual displays, limit switches, proximity switches and locking devices.

Excavator ball valves

Modern excavators are extremely versatile machines. With the aid of a hydraulic quick-change system, it is easy to change from bucket to grabber. When the bucket is not in use, the changeover system has a tendency to pull the piston rod out of the cylinder, due to its weight. Rötelmann’s excavator ball valves solve this problem, making it faster and safer to change attachments. The ball valves close off both sides of the bucket cylinder. The integrated check
valve function enables the piston rod to retract into the cylinder, therefore preventing the rod from being pulled out. In driving position, the check valve function is reversed, so that the bucket cannot touch the road surface.

Swivel drives

Rötelmann GmbH is the first company in the world to manufacture and sell its own valves for hydraulic systems and hydraulic swivel drives. The RSI range integrates perfectly into all possible systems. With our products, steplessly adjustable home position and the possibility to adjust the stop position by ±10% is standard. On top of this come functions such as countless flange/coupling combinations, optional end position damping plus a wide selection of connection threads that open up even more potential applications.
With our hydraulic products too, we make the same high demands regarding our products’ flexibility and functioning: We have a comprehensive range of modules. An emergency hand pump and comprehensive switching options are a matter of course. With a linear pressure/torque ratio, the drives can be used at any operating pressure up to 210 bar.