Abrégé

A valve assembly (10) for large scale irrigation including a valve body (20) and a valve head (40). The valve head is adapted to reciprocally travel along a longitudinal axis, supported by a longitudinally aligned shaft (60) inside the valve body. The valve head includes a wall (41) terminating in a peripheral sealing contact surface (42), the wall extending inwardly from the peripheral contacting surface.

Classes IPC  ?

• F16K 1/36 - Corps de soupapes
• F16K 21/04 - Obturateurs à fermeture automatique, c.-à-d. se fermant d'eux-même après fonctionnement
• F16K 15/02 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés

Abrégé

Irrigation valves for channels and for irrigation tanks are of three types. All are activated by a pair of tilting float arms to which a pair of floats are attached. One type is a T-shaped duct with a cylindrical valve disposed at 90 degrees to the part that is connected to the incoming flow. The floats rotate the valve. The second type has the same construction as the first type, thereby giving flow control but additionally has a rise and fall gate in the duct part that is connected to the incoming flow. The gate acts as a stop valve. The third type has a cylindrical duct connectable to the incoming flow but no valve and provides both flow control and stop valve facilities through a rise and fall gate actuated by the tilting of the float arms.

Classes IPC  ?

• F16K 31/30 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide et actionnés par un flotteur commandant un robinet-vanne ou un tiroir
• E02B 13/02 - Fermetures pour canalisations d'irrigation

Abrégé

Irrigation valves for channels and for irrigation tanks are of three types. All are activated by a pair of tilting float arms to which a pair of floats are attached. One type is a T-shaped duct with a cylindrical valve disposed at 90 degrees to the part which is connected to the incoming flow. The floats rotate the valve. The second type has the same construction as the first type thereby giving flow control but additionally has a rise and fall gate in the duct part which is connected to the incoming flow. The gate acts as a stop valve. The third type has a cylindrical duct connectable to the incoming flow but no valve and provides both flow control and stop valve facilities through a rise and fall gate actuated by the tilting of the float arms.

Classes IPC  ?

• F16K 31/30 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide et actionnés par un flotteur commandant un robinet-vanne ou un tiroir
• E02B 13/00 - Fossés d'irrigation, c.-à-d. écoulement par gravité, réseaux de distribution d'eau à canaux ouverts