US 12,241,554 B2
Combination valve consisting of quick-acting valve and control valve for a steam circuit and SIL 3 certified safety circuit
Michael Mahalek, Nuremberg (DE)
Assigned to TURVENTIL GMBH & CO. KG, Nuremberg (DE)
Appl. No. 17/781,610
Filed by TURVENTIL GMBH & CO. KG, Nuremberg (DE)
PCT Filed Nov. 10, 2020, PCT No. PCT/EP2020/081611
§ 371(c)(1), (2) Date Jun. 1, 2022,
PCT Pub. No. WO2021/110375, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10 2019 218 694.7 (DE), filed on Dec. 2, 2019.
Prior Publication US 2023/0003304 A1, Jan. 5, 2023
Int. Cl. F16K 1/44 (2006.01); F01D 17/14 (2006.01); F01D 21/14 (2006.01); F01K 13/02 (2006.01); F16K 1/52 (2006.01); F16K 31/56 (2006.01)
CPC F16K 1/443 (2013.01) [F01D 17/145 (2013.01); F01D 21/14 (2013.01); F01K 13/02 (2013.01); F16K 1/52 (2013.01); F16K 31/56 (2013.01); F05D 2220/31 (2013.01); F05D 2270/56 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A combination valve for a steam circuit, comprising:
a quick-closing valve, and
a regulating valve,
wherein the quick-closing valve and the regulating valve are arranged in a common housing, the regulating valve is displaceable by an active drive and the quick-closing valve is passively displaceable over a full stroke between an open position and a closed position by steam of the steam circuit,
wherein the combination valve is configured to carry out a partial stroke test on the quick-closing valve when the regulating valve is in an open position during ongoing operation of the steam circuit, wherein the partial stroke test is characterized in that the quick-closing valve is only moved over a part of its full stroke.