METHOD OF OPERATING A VALVE WITH A DYNAMIC UNIT

• Main Authors: MARKVART, Arne, HØLCK, Poul
• Format: Patent
• Language: English; French; German
• Published: 25.03.2020
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; CONTROLLING; DEVICES FOR VENTING OR AERATING; DOMESTIC HOT-WATER SUPPLY SYSTEMS; DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS; ELEMENTS OR COMPONENTS THEREFOR; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PHYSICS; RANGES; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; VENTILATING; WEAPONS

A method of operating a valve (10) is described. The valve comprises a valve element (20) movable relative to a valve seat (28) to adjust a valve opening (30) to regulate a fluid flow between a first and a second fluid port (16, 18). The valve further comprises reversing means to reverse a flow though the valve opening. The said valve further comprises a dynamic unit (100) to regulate a dynamic flow opening (102) in dependence on a pressure difference between the first and the second fluid port. In a first flow direction of the flow through the dynamic unit, the dynamic flow opening is reduced if the pressure difference increases. In a second, opposite flow direction of the flow through the dynamic unit, the dynamic flow opening is increased or kept constant if the pressure difference increases. The dynamic unit is arranged such that the reversing means also reverse a flow through the dynamic unit. In order to facilitate installation, the method includes operating the valve with a flow direction such that a flow through the dynamic unit is directed in the second flow direction.