摘要:
A slam-shut safety device includes a valve body (112), a valve disc (122), a reset pin (136), and a guide collar (162). The valve disc (122) is disposed within the valve body (112) and shiftable along a slam-shut axis between an open position and a closed second position. The reset pin (136) is operatively coupled to the valve disc (122) and shiftable along the slam-shut axis relative to the valve body (112) between an untripped position placing the valve disc (122) in the open position and a tripped position placing the valve disc (122) in the closed position. The guide collar (136) includes a hollow cylindrical portion extending away from the valve disc (122) at least partly over the reset pin (136) and being slidably disposed in a guide bore of a slam shut body that is connected to the valve body (112) and supporting the reset pin (136), thereby providing added structural integrity to the rest pin (136) and valve disc (122).
摘要:
The present invention provides an integral cantilever monitoring device (512) for a regulator (510) having a positionable vent port (654) that may be disposed proximate the lowest point of the monitoring device to allow drainage of liquids accumulating within the monitoring device due to humidity and precipitation. The monitoring device may also include a. connection module (684) allowing the monitoring device to be rotated independently of the actuator (516) and valve body (514) of the regulator to accommodate varying installation environments. The connection module may further include an inlet port (708) for connection to a downstream pressure feedback line when the regulator valve body and connection module portions of a primary downstream pressure feedback passage are out of alignment due to rotation of the monitoring device.
摘要:
A hydraulic valve assembly (100) for controlling a clutch in a vehicle transmission. The valve assembly includes a housing (102) with a first port for connection to a source of pressurized hydraulic fluid, a displaceable (130) sealing piston disposed within the housing, a valve spring (136) for displacing the sealing piston, a snap- spring (104) having first and second equilibrium positions, and an overstroke spring. In the first equilibrium position a spring force displaces the sealing piston to uncover the first port to enable fluid flow through the valve, and in the second equilibrium position the valve spring displaces the sealing piston to block the first port to block fluid flow through the valve. Moving from the first equilibrium position to the second equilibrium position includes displacing the overstroke spring (106).
摘要:
The present invention provides an integral cantilever monitoring device for a regulator having a positionable vent port that may be disposed proximate the lowest point of the monitoring device to allow drainage of liquids accumulating within the monitoring device due to humidity and precipitation. The monitoring device may also include a connection module allowing the monitoring device to be rotated independently of the actuator and valve body of the regulator to accommodate varying installation environments. The connection module may further include an inlet port for connection to a downstream pressure feedback line when the regulator valve body and connection module portions of a primary downstream pressure feedback passage are out of alignment due to rotation of the monitoring device.
摘要:
Eine mit einem Rohr verbindbare Armatur enthält einen Stutzen (2), in welchem ein Körper (14) entlang einer Stutzenachse (12) axial bewegbar angeordnet ist, wobei der Körper (14) einen Bohrer (16) zum Anbohren des Rohres und / oder einen Ventilkörper (42) eines Veritils aufweist, und ferner enthaltend einen insbesondere am genannten Stutzen (2) angeordneten Abzweigstutzen (24), an welchen eine Abzweigleitung anschliessbar ist. Die Armatur soll mit einem geringen konstruktiven Aufwand dahingehend weitergebildet werden, dass die Sicherheitsanforderungen mit hoher Zuverlässigkeit erfüllt werden und bei Bedarf die Verbindung zu einer Abzweigleitung problemlos herstellbar ist. Es wird vorgeschlagen, dass im Abzweigstutzen (24) eine Schliesseinrichtung (28) mit einem Betätigungselement (32) derart angeordnet ist, dass mittels des im Stutzen (2) axial bewegbaren Körpers (14) die Betätigung der Schliesseinrichtung (28) durchführbar ist.
摘要:
A cam assembly for use in a slam- shut safety valve includes a cam having an elongated first cam arm, and the cam is pivotable about a rotational axis. The cam assembly also includes a torsional spring having a pair of stationary outer arms and a pair of pivotable inner arms, wherein the pair of stationary inner arms is coupled to a portion of the first cam arm. The pair of inner arms is adapted to act on the first cam arm to bias the cam into a position that allows the cam to be relatched in a valve rearming process. The pair of inner arms is symmetrically disposed about the first cam arm to prevent lateral displacement of the cam.
摘要:
A single chamber two-way servo-operated valve comprising: a valve body (1) presenting an inlet aperture (2), an outlet aperture (3) and an access (11); a cover (12) to close the access (11) of the valve body (1); a port (4) dividing the valve body interior into an inlet section (5) and an outlet section (6); a valving element (8) comprising a disc (10) for closing said port (4); and an actuating chamber (15) at least partially defined by the cover (12), the disc (10) and a flexible diaphragm (14) connected to the valving element (8), the disc (10) of said valving element (8) comprising a rigid central core (50) which is at least partially covered by a rubber layer (18) adhering to said central core (50), said rubber layer (18) extending from the edge of the disc (10) to form the flexible diaphragm (14).
摘要:
Ein Explosionsschutzventil mit einem innerhalb eines Gehäuses (2) beweglichen Schliesskörpers (4), der an einer Führungsstange (3) geführt und aus einer vordefinierten Offenstellung bei einer Druck- oder Sogwelle in eine Bewegungsrichtung in eine dichtende Schliessstellung verschiebbar ist, weist zum Halten der Offenstellung an der Führungsstange (3) eine mit dem Schliesskörper (4) in Wirkverbindung stehende Federanordnung auf . Die Federanordnung weist bezogen auf die jeweilige Bewegungsrichtung ein erstes Federelement (5, 5') und ein zweites Federelement (6, 6') auf, die derart angeordnet sind, dass bei einer Verschiebung des Schliesskörpers (4) in die Schliessstellung das zweite Federelement (6, 6') erst nach einem vorbestimmten Federweg (a) beaufschlagbar ist.
摘要:
A cartridge assembly for a valve is disclosed. The cartridge assembly includes a cartridge containing an activation component. The cartridge and activation component are configured to be replaceable as a unit. The activation component prevents the valve from either opening or closing until either a predetermined pressure is exerted on the valve or a predetermined temperature is experienced by the activation component. The cartridge may include any of a variety of activation component types, such as buckling pins, tensile pins, shear pins, springs, or fusible alloys, either individually or in combination to control the valve opening or closing.
摘要:
Embodiments of the invention provide a high integrity pressure protection system (HIPPS) manifold including a housing (54) providing a flow path between a process fluid line and a sensor, a first ball valve (62) positioned within the housing and selectively allowing and inhibiting flow through the flow path, and a second ball valve (66) positioned within the housing and selectively allowing and inhibiting flow through the flow path.