EP 2048438 A3 20131113 - Drain cock with built-in pressure regulator, particularly for wall-mounted boilers and the like
Title (en)
Drain cock with built-in pressure regulator, particularly for wall-mounted boilers and the like
Title (de)
Ablasshahn mit eingebautem Druckregulator, insbesondere für wandmontierte Boiler und Ähnliches
Title (fr)
Robinet de drainage avec régulateur de pression intégré, particulièrement pour des chaudières à montage mural et similaires
Publication
Application
Priority
IT TO20070513 A 20070712
Abstract (en)
[origin: EP2048438A2] The drain cock (1) comprises a body (2) with a pipe (3) that leads to a valve seat (4), a hand-actuated opening and closing member (6) screwed onto a formation (5b) on the body (2), barrier members (15, 16, 19; 15, 16, 27; 19) connected to the opening and closing member (6) and able to act on the valve seat (4), in such a way that when said member (6) is, relative to the body (2), in a closed position and in an open position, respectively, these barrier members shut off and disengage from, respectively, the seat (4), preventing and permitting, respectively, communication between an upstream portion of the installation and a region downstream of the valve scat (4). The drain cock (1) also comprises a moveable barrier (19; 16; 31) separated from the opening and closing member (6) and stressed by a spring (12) towards a shutoff position in which it is able, when this member (6) is in the closed position, to prevent the passage of liquid between the pipe (3) of the body (2) and a discharge passage (8b; 32). The arrangement is such that said barrier (19; 16; 31) is able to move from the shutoff position, against the action of the spring (12), when the pressure of the fluid upstream of the seat (4) exceeds a predetermined value, to a position in which it allows fluid to be discharged from the portion of the installation upstream of the seat (4) to the discharge passage (8b; 32).
IPC 8 full level
F22B 37/44 (2006.01); F22B 37/50 (2006.01)
CPC (source: EP)
F22B 37/446 (2013.01); F22B 37/50 (2013.01)
Citation (search report)
- [X] BE 556415 A
- [X] US 2005072156 A1 20050407 - TSUTSUI TOSHIHIRO [JP], et al
- [X] US 2906289 A 19590929 - FOX LOUIS A
- [X] US 1429296 A 19220919 - OBERT CASIN W
- [A] PERKO H-D ET AL: "SICHERHEITSEINRICHTUNGE FUER VERSCHIEDENE AUFGABEN IN KRAFTWERKEN", VGB KRAFTWERKSTECHNIK, VGB KRAFTWERKSTECHNIK GMBH. ESSEN, DE, vol. 75, no. 7, 1 July 1995 (1995-07-01), pages 597 - 602, XP000516390, ISSN: 0372-5715
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2048438 A2 20090415; EP 2048438 A3 20131113; EP 2048438 B1 20180912; ES 2700840 T3 20190219; IT TO20070513 A1 20090113; TR 201818652 T4 20190121
DOCDB simple family (application)
EP 08160018 A 20080709; ES 08160018 T 20080709; IT TO20070513 A 20070712; TR 201818652 T 20080709