Thermostatic mixing valve

Abstract

Thermostatic mixing valve (10) comprising a housing (11), the housing comprising a first inlet port (12) for water having a first temperature, a second inlet port (13) for water having a second temperature, and an outlet port (14) for mixed water having a mixing temperature depending on a mixing ratio of the water having the first temperature and of the water having the second temperature. The thermostatic mixing valve further comprises a valve insert (15) positioned within the housing (11), wherein the valve insert has a tubular element (16), a thermal element (17) and a spring element (18), wherein the tubular element (16), the thermal element (17) and the spring element (18) control together the mixing ratio of the mixed water such that an actual value of the mixing temperature corresponds to a nominal value of the mixing temperature. The thermostatic mixing valve further comprises a first setting unit (19) having a first spindle (21) and being configured to set the nominal value of the mixing temperature. The thermostatic mixing valve further comprises a second setting unit (20) having a second spindle (22) and being configured to select an operation mode of the thermostatic mixing valve, wherein the second spindle (22) is guided within the first spindle (21), and wherein the second spindle (22) is configured to provide a linear movement of the second spindle (22) relative to the first spindle (21) when rotating the second spindle (22) relative to the first spindle (21) in order to select either a first operation mode or a second operation mode for the thermostatic mixing valve.

Dependencies are inferred from the claim text.