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US 12,241,554 B2Granted
Combination valve consisting of quick-acting valve and control valve for a steam circuit and SIL 3 certified safety circuit
AssigneeTurventil GmbH & Co. KG
InventorMichael Mahalek
Life of this patent
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Abstract
A combination valve for a steam circuit, includes a quick-closing valve and a regulating valve. 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 by the steam.
Claims21
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.
1 more element
A SIL 3 certified safety circuit comprising:
- a combination valve for a steam circuit, the combination valve 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.
Dependencies are inferred from the claim text.