摘要:
A pressure regulator includes a hermetically sealed housing (10) that limits the potential for leak paths to atmosphere or exterior to the housing. Regulating means (52) with the regulator includes a damping arrangement (100) for limiting oscillations during high flow rates. A stem clip (110) secures a poppet assembly (120) to movable part (80) of the regulating means (52). The stem clip (100) permits radial movement of the poppet assembly (120) to facilitate centering of the poppet assembly (120) relative to a valve seat (132). The poppet assembly (120) includes a self-tappable poppet (130) to precisely set the opening between the poppet (130) and the valve seat (132) irrespective of tolerance stack-up.
摘要:
Une soupape de protection contre les ruptures de conduite pour une conduite double (10, 11) possède un dispositif de décompression (28) avec une soupape de retenue commandée par pilote (41, 42) avec un piston de commande (37) actionné par la pression régnant dans l'espace (26) délimitée par les conduites doubles (10, 11) et ouvre la soupape de retenue (41, 42) lorsqu'une valeur limite déterminée par son ressort (43) est dépassée. La soupape de retenue (41, 42) libère ainsi la pression dans un verrou de fluide qui est formé par un mécanisme à piston et cylindre (17, 18) dont le cylindre (18) est normalement fermé par la soupape de retenue (41, 42) et dont le piston (17) est relié à l'organe principal (16) de la soupape principale, de sorte que cet organe de soupape se déplace vers une position fermée par l'action du ressort à pression (19) lorsque la soupape de retenue (41, 42) est ouverte. Une réduction de la pression dans l'espace (26) entre les doubles conduites (10, 11) se traduit par un déplacement du piston (17) et de l'organe de soupape principal (16) relié au piston par l'intermédiaire du ressort (19) vers une position fermée, provoquant un écoulement de fluide au travers d'un dispositif de restriction à une voie (51-53) qui est ainsi ouvert et propage la pression que l'action du ressort (19) a engendrée vers le piston de commande (37), agissant ainsi sur la soupape de retenue commandée par pilote (41, 42) qui libère la pression dans le verrou de fluide formée par le mécanisme à piston et cylindre (17, 18).
摘要:
A centralized automatic fluid or gas spill prevention and shut-off valve system that prevents line ruptures comprising means to reduce fluid pressures, such as gas, to appropriate levels, a continuous monitoring of downstream conditions, an immediate stop system of major spillage caused by excessive flow wherein said immediate stop system automatically shuts off the flow of fluids, means for timed shut off of minor fluid flows that exceed a predetermined amount of time and a restarting system that restarts when overflow conditions are corrected, wherein said restarting system works automatically or manually.
摘要:
It is of the type of valves formed by a hollow body divided into two parts that are coupled by enclosing a float (3) provided with a flexible sealing membrane (4) of the air outlet (6) by the thrust of the fluid entering through a bottom neck (5) for connecting to the duct. When air is produced, the float slides (3) so that the membrane (4) is separated and the air is removed. The flexible membrane (4) has some protrusions (10) and projections (11) on its surface that rests on an oblique surface of the float (3). Its smooth surface covers the grooved outlet and has a cylindrical protrusion (12) on an end for fastening by sliding in a top channel (13) of the float (3). The float has an aerodynamic shape and guided movement in the body by means of complementary protrusions (8) and recesses (9).
摘要:
The universal control valve, according to this invention, introduces a diaphragm (2) fixed between the lower casing (1) and the upper cassing (3), and a nominal opening (26) in the upper wall (79) of the lower casing (1), and a self-rinsing nozzle (10) installed above the outtake port. The thickened part (80) of the diphragm (2) fixed between the plate (4) and the holder (9) of the diaphragm (2) lies onto the seats (78), while the holder (9) is with leading elements (9a) movable installed in the nominal opening (26) and fixed to the pulling rod (11) by a screw (8). The pulling rod (11) is encircled by the plate (4) and fixed to the stud (7), which is screwed into the upper part (84), while a plate (4) pressing the spring (6) in a plate-like chamber (81) is being pressed by the stud (7); besides, the inside diameter of the chamber (81) is equal to the nominal opening (26) diameter. A bellows is firmly and hermetically fixed to the plate-like chamber (81) and to the middle part (83) of the upper casing (3). There is an orifice (15) bored in the diaphragm.
摘要:
A flow limit valve for limiting the flow rate of a pressurized fluid includes a valve body with an interconnecting cavity of circular cross-section. Within the cavity is a piston (31) that slides within the cavity under force generated by a pressure differential across the piston (31) to a closed position in engagement with a seat (29) at the end of the cavity. A first encapsulated magnet (45) is carried within the valve body in a chamber located on the side of the seat (29) opposite the cavity. The first encapsulated magnet (45) can be moved in response to another magnet (75) outside the valve body to move a pin (110) which can extend through the seat (29) when the piston (31) is in a closed position to thereby move the piston (31) to an open position. The magnetic forces applied through the valve body affect internal valve operation via the pin (110) and thus avoid the danger of noxious fluids escaping through sliding seals or flexible membranes.