Mature technology for a broad range of applications

Our tight shut-off valve MAK is a universally utilisable product with triple-eccentric valve technology, suitable for extreme operating conditions and a high number of actuations. This type of valve has been successfully used since the 70s and is the further developed version of the original Adams patent.

Our MAK valves are so outstanding due to their high degree of reliability. This type of valve has proven its worth in a wide range of applications over decades. This not only means that we have been using the tight shut-off valve MAK with great success worldwide for almost 40 years, it also means that quite a number of customers are using valves we supplied decades ago, which are still in good working order in their plants. That is reliability.

The control valve MAKO is based on our well-proven triple offset valve type MAK and offers the same outstanding reliability all ADAMS valves have. Its disc design with the special shape and flow channels make it special and each of the discs are customized designs based on customer requirements.

Our control valve ideally prevents cavitation while regulating the flow and minimizing noises. The enhanced regulation is rendered possible because of the flow channels on the disc. Another improvement of the MAKO is, that the special form of the back of the disc has been adjusted, so that it creates a change of the flow chart within the first 20 degree and the last ten degree. This leads to a nearly perfect, even percentage characteristic curve during the whole flow area.

The compact design of the check valve RZI even makes it possible to operate in very limited spaces. It is robust and long lasting and can also be fitted with soft seals in a metallic seat or strip-metal seals for use at higher temperatures. Based on the same proven design, the check valve RZI was developed for pipe dimensions over 1,000 millimetres. Its damping system has been adapted to suit the greater forces.

The RZN and RZI check valves are ideally suited for protecting pumps for liquid media. Their high flexibility of material and seal models enables the valves to be used in a wide variety of applications.

Safety when flows reverse

The hallmark of the check valve MAG is an external balancing weight that optimally counterbalances the valve disc. Its advantage is that the valve is very responsive and the disc reliably reaches its final closing position. Due to the positioning of the balancing weight in its own pressure-resistant body without gland shaft seals, the valve exhibits low internal friction, which benefits the optimal closing and opening characteristics.

As automatically closing check valve, the MAG is used in exhaust steam pipes in steam turbines as well as in pressure lines of compressors in air and gas systems.

Our valves can be fitted with either a hydraulic or pneumatic auxiliary drive with spring loading as additional closing support. An overrunning clutch of the check valve MAG enables the free movement, which is not influenced by drive and gland shaft friction.