ECOTROL® (Ident-No. 08c): A new control valve without any compromise. Perfect with regard to quality, efficiency, weight and easy maintenance - a valve of which others claim that it is not possible. * excellent performance in liquid and gas applications * extended lifetime due to double-side use by reversing the seat ring (10; upper and lower side) * easy and fast assembling, maintenance without any special tools * low cost ratio * optimal flow conditions by seat retainer (9) * prevention of leakage (5) and bypass leakage by pre-calculated pre-load of encapsulated sealing components (6, 11) controlled by the method of initial compression to eliminate the possibility of an overcompression * multiple material options * optional: PTFE-soft seat sealing with back-up O-Ring and metal-to-metal end stop * alternative to the tubeless positioner mounting: mounting acc. to DIN IEC 534