DIAPHRAGM VALVE

A diaphragm valve for controlling a flow of gaseous or liquid fluid and including a valve housing (101) having a valve chamber (102), into which opens a central channel (104) and on each side thereof a first side channel (103) and a second side channel (104), respectively, having each an external connection (106, 107, 108) for fluid, valve seat means (110a, 110b) arranged in the housing, an elastic diaphragm (112) adapted to be brought into and away from sealing contact with at least one of the valve seat means, and control means (117, 118) for actuating the diaphragm. At least one portion of each valve seat means (100, 110b) is common to the central channel (104) and one of the side channels (103, 104). Two control means (117, 118) are arranged on one hand to press the diaphragm (112) against one such portion each, thereby to shut off the passage of fluid between the central channel and the respective side channel, on the other to raise one portion each of the diaphragm off the respective ...

DIAPHRAGM VALVE

A diaphragm valve including a valve housing having at least three ports and at least two valve chambers provided in the valve housing. Each valve chamber has at least one first space communicating with a respective one of said ports and a second space separated from said first space by a threshold. The second space of each valve chamber communicates only with the second space of others of said at least two valve chambers, such that communication between any two of said at least two ports can take place only by passing across two thresholds.

MEMBRANVENTIL

DIAPHRAGM VALVE

Diaphragm valve

Diaphragm valve

DIAPHRAGM VALVE

A valve housing of a diaphragm valve has a first valve chamber (14), into which open a central channel (16) and first (15) and second (16) side channels. Valve seats (18, 19) are arranged in the housing, and a first diaphragm (21) is adapted to seal against at least one of the first and second valve seats. The first diaphragm (21) is adapted to be pressed against and released from the valve seats, thereby shutting and opening, respectively, passage between the central channel and the side channels. A second valve chamber (45), into which opens a fourth channel (48), communicates with the central channel (16) through an opening (46) in the housing. A third valve seat (49) is provided and a second diaphragm (52) is adapted to be brought into and away from sealing engagement with the third valve seat (49). The second diaphragm (52) is adapted to be pressed against and released from the third valve seat (49), thereby shutting and opening, respectively, passage between the fourth channel (48) and the central channel (16).

A diaphragm valve and a valve housing for a diaphragm valve

A DIAPHRAGM VALVE AND A VALVE HOUSING FOR A DIAPHRAGM VALVE

A housing of diaphragm valve has two valve chambers (11, 12). A central channel (21, 22) opens in each valve chamber and has an external connection (B, D). On each side of the central channels there are first (17, 19) and second side channels (18, 20) having an external connection (A, C). Each valve chamber has two valve seats (13, 14, 15, 16). Diaphragms (23, 24) are arranged to seal against the valve seats. Control means (25, 26) are arranged to press portions of the diaphragms (23, 24) against one valve seat each, thereby shutting passage between a central channel and a side channel, and to raise portions of the diaphragms off the valve seats, thereby to open passage between a central channel and a side channel. The first side channels (17, 19) are interconnected and both are connected to a common external connection (A), and the second side channels (18, 20) are interconnected and both are connected to a common external connection (C).

Diaphragm valve and a valve housing for a diaphragm valve

A housing of diaphragm valve has two valve chambers (11, 12). A central channel (21, 22) opens in each valve chamber and has an external connection (B, D). On each side of the central channels there are first (17, 19) and second side channels (18, 20) having an external connection (A, C). Each valve chamber has two valve seats (13, 14, 15, 16). Diaphragms (23, 24) are arranged to seal against the valve seats. Control means (25, 26) are arranged to press portions of the diaphragms (23, 24) against one valve seat each, thereby shutting passage between a central channel and a side channel, and to raise portions of the diaphragms off the valve seats, thereby to open passage between a central channel and a side channel. The first side channels (17, 19) are interconnected and both are connected to a common external connection (A), and the second side channels (18, 20) are interconnected and both are connected to a common external connection (C).

Diaphragm valve

DIAPHRAGM VALVE

A diaphragm valve for controlling a flow of gaseous or liquid fluid and including a valve housing (101) having a valve chamber (102), into which opens a central channel (104) and on each side thereof a first side channel (103) and a second side channel (104), respectively, having each an external connection (106, 107, 108) for fluid, valve seat means (110a, 110b) arranged in the housing, an elastic diaphragm (112) adapted to be brought into and away from sealing contact with at least one of the valve seat means, and control means (117, 118) for actuating the diaphragm. At least one portion of each valve seat means (110a, 110b) is common to the central channel (104) and one of the side channels (103, 104). Two control means (117, 118) are arranged on one hand to press the diaphragm (112) against of such portion each, thereby to shut off the passage of fluid between the central channel and the respective side channel, on the other to raise one portion each of the diaphragm off the respective portion of the valve seat means thereby to open passage of flow between the central channel and the respective side channel.

A DIAPHRAGM VALVE AND A VALVE HOUSING FOR A DIAPHRAGM VALVE

A housing of diaphragm valve has two valve chambers (11, 12). A central channel (21, 22) opens in each valve chamber and has an external connection (B, D). On each side of the central channels there are first ( 17, 19) and second side channels (18, 20) having an external connection (A, C). Each valve chamber has two valve scale (13, 14, 15, 16). Diaphragms (23, 24) am arranged to seal against the valve seats. Control means (25, 26) are arranged to press portions of the diaphragms (23, 24) against one valve seat each, thereby shutting passage between a central channel and a side channel, and to raise portions of the diaphragms off the valve seats, thereby to open passage between a central channel and a side channel. The first side channels (17, 19) are interconnected and both are connected to a common external connection (A), and the second aide channels (18, 20) are interconnected and both are connected to a common external connection (C).

DIAPHRAGM VALVE

A valve housing of a diaphragm valve has a first valve chamber (14), into which open a central channel (16) and first (15) and second (16) side channels. Valve seats (18, 19) are arranged in the housing, and a first diaphragm (21) is adapted to se al against at least one of the first and second valve seats. The first diaphragm (21) is adapted to be pressed against and released from the valve seats, thereby shutting and opening, respectively, passage between the central channel and the side channels. A second valve chamber (45), into which opens a fourth channel (48), communicates with the central channel (16) through an opening (46) in the housing. A third valve seat (49) is provided and a second diaphragm (52) is adapted to be brought into and away from sealing engagemen t with the third valve seat (49). The second diaphragm (52) is adapted to be presse d against and released from the third valve seat (49), thereby shutting and opening, respectively, passage between the fourth channel ...

MEMBRANVENTIL

PCT No. PCT/SE94/00602 Sec. 371 Date Dec. 18, 1995 Sec. 102(e) Date Dec. 18, 1995 PCT Filed Jun. 17, 1994 PCT Pub. No. WO95/00782 PCT Pub. Date Jan. 5, 1995A diaphragm valve for controlling a flow of gaseous or liquid fluid and including a valve housing having a valve chamber, into which opens a central channel and on each side thereof a first side channel and a second side channel, respectively, each having an external connection for fluid, valve seats arranged in the housing, an elastic diaphragm adapted to be brought into and away from sealing contact with at least one of the valve seats and controls for actuating the diaphragm. At least one portion of each valve seat is common to the central channel and one of the side channels. Two controls are arranged to press the diaphragm against one such portion each, thereby to shut off the passage of fluid between the central channel and the respective side channel, and to raise one portion each of the diaphragm off the respective portion of the valve seat thereby to open passage of flow between the central channel and the respective side channel.

DIAPHRAGM VALVE.

UNA VALVULA DE DIAFRAGMA PARA CONTROLAR UN FLUJO DE UN FLUIDO GASEOSO O LIQUIDO QUE INCLUYE UNA CARCASA (101) CON UNA CAMARA (102), EN LA QUE SE ABRE UN CANAL CENTRAL (104), Y EN CUYO LADO EXISTEN UN PRIMER CANAL LATERAL (103) Y UN SEGUNDO (104), RESPECTIVAMENTE, CADA UNO CON UNA CONEXION EXTERNA (106,107,108) PARA EL FLUIDO; UN MECANISMO DE ASIENTO DE VALVULA (110A,110B) DISPUESTOS EN LA CARCASA, UN DIAFRAGMA ELASTICO (112) ADAPTADO PARA SER TRAIDO Y LLEVADO DESDE EL CONTACTO DE SELLAJE CON AL MENOS UNO DE LOS MECANISMOS DE ASIENTO DE VALVULA, Y UN MECANISMO DE CONTROL (117,188) PARA ACTIVAR EL DIAFRAGMA. AL MENOS UNA PARTE DEL MECANISMO DE ASIENTO DE VALVULA (110A,110B) ES COMUN AL CANAL CENTRAL (104) Y A UNO DE LOS CANALES LATERALES (103,104). DOS MECANISMOS DE CONTROL (117,118) SE ENCUENTRAN DISPUESTOS, POR UN LADO, PARA PRESIONAR EL DIAFRAGMA (112) CONTRA UNA DE TALES SECCIONES, PARA ASI CERRAR EL CONDUCTO DE FLUIDO ENTRE EL CANAL CENTRAL Y EL CANAL LATERAL RESPECTIVO, Y POR OTRO, PARAELEVAR UNA PARTE DE CADA DIAFRAGMA POR ENCIMA DE LA SECCION RESPECTIVA DEL MECANISMO DE ASIENTO DE VALVULA Y ASI ABRIR UN CONDUCTO DE FLUJO ENTRE EL CANAL CENTRAL Y EL CANAL LATERAL RESPECTIVO. A DIAPHRAGM VALVE FOR CONTROLLING A FLOW OF A GASEOUS OR LIQUID FLUID INCLUDING A HOUSING (101) WITH A CAMERA (102), IN WHICH A CENTRAL CHANNEL (104) IS OPENED, AND ON WHICH SIDE THERE IS A FIRST SIDE CHANNEL ( 103) AND ONE SECOND (104), RESPECTIVELY, EACH ONE WITH AN EXTERNAL CONNECTION (106,107,108) FOR THE FLUID; A VALVE SEAT MECHANISM (110A, 110B) ARRANGED IN THE HOUSING, AN ELASTIC DIAPHRAGM (112) ADAPTED TO BE BROUGHT AND CARRIED FROM THE SEALING CONTACT WITH AT LEAST ONE OF THE VALVE SEAT MECHANISMS, AND A MECHANISM (117,188) TO ACTIVATE THE DIAPHRAGM. AT LEAST ONE PART OF THE VALVE SEAT MECHANISM (110A, 110B) IS COMMON TO THE CENTRAL CHANNEL (104) AND ONE OF THE SIDE CHANNELS (103,104). TWO CONTROL MECHANISMS (117,118) ARE DISPOSED, ON THE SIDE, TO PRESS THE DIAPHRAGM (112) AGAINST ...

Membranventil

A diaphragm valve and a valve housing for a diaphragm valve

A housing of diaphragm valve has two valve chambers (11, 12). A central channel (21, 22) opens in each valve chamber and has an external connection (B, D). On each side of the central channels there are first (17, 19) and second side channels (18, 20) having an external connection (A, C). Each valve chamber has two valve seats (13, 14, 15, 16). Diaphragms (23, 24) are arranged to seal against the valve seats. Control means (25, 26) are arranged to press portions of the diaphragms (23, 24) against one valve seat each, thereby shutting passage between a central channel and a side channel, and to raise portions of the diaphragms off the valve seats, thereby to open passage between a central channel and a side channel. The first side channels (17, 19) are interconnected and both are connected to a common external connection (A), and the second side channels (18, 20) are interconnected and both are connected to a common external connection (C).