F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 24/02 (2006.01) E03B 7/10 (2006.01) F16K 51/00 (2006.01)
Patent
CA 2546025
The invention concerns a valve arrangement for external operation including: a feed opening, a delivery opening, a connecting passage which connects the feed opening to the delivery opening, a first valve which is adapted to enable the fluid connection through the connecting passage in a first functional position and to close same in a second functional position, and an actuating device for actuating the first valve. Valve arrangements of that kind suffer from the disadvantage that they are not suitable for frost-resistant operation as freezing water can damage parts of the valve arrangement. That disadvantage is overcome by the invention insofar as there is provided a second valve which is closed in the first and second functional position and which co-operates with a drain opening which is so connected to the connecting passage that in a third functional position in which the first valve is closed and the second valve is opened the liquid in the connecting passage can flow away through the drain opening. The first and the second valves can be in particular in the form of slide valves, in particular rotary slide valves and can preferably be integrated into a single slide valve.
Interforge Klee Gmbh
Oyen Wiggs Green & Mutala Llp
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