Abstract: An external actuator for manually operating a gate valve is described. The actuator includes a support plate, a linear sleeve, a shaft slidably arranged in the linear sleeve, a lever member, and a lever link. One end of the shaft is linked to a gate valve by way of a stem link, and a spring-loaded cam is provided on the support plate to releasably lock the shaft in a closed position.

Abstract: Disclosed is a water filtration device which includes various hoses for connection between different parts of the filtration device and a rotatable cam system which, during backwash cycles, is rotated so as to clamp various the hoses in predetermined sequences for thereby controlling the direction of the flow of water through the tubing system. Electrical pinch valves are use alternatively to a cam shaft.

Abstract: The present invention relates to a proportional valve (1), particularly for fluid dispensing devices, comprising a main body (3) in which an inlet conduit (5) for an inlet fluid to said proportional valve (1) and an outlet conduit (7) for a fluid leaving said proportional valve (1) are defined, said inlet conduit (5) and said outlet conduit (7) being in fluid communication with each other, said proportional valve (1) comprising at least one shutter element (9) arranged between said inlet conduit (5) and said outlet conduit (7) adapted to intercept said fluid, said shutter element (9) comprising a movable fluid sealing element (90) adapted to intercept said fluid at one of said inlet conduit (5) and said outlet conduit (7) and a lever element (92) associated at a first end with said movable fluid sealing element (90) and at a second end with an actuator device (11), said lever element (92) being hinged about said main body (3) at a fulcrum point (94) arranged between said first end and said second end of said

Abstract: Fluid management systems for handling pressurized fluid connect various subsystems or subunits without the need to use reinforced tubing. The system utilizes one or more segments of unreinforced conduit that are encapsulated at various points along a length of the segment with one or more rigid encapsulating members. The unreinforced conduit may be made a disposable element while the rigid encapsulating members may be re-used. In one aspect, the encapsulating member may include a two-part valve body that surrounds and encapsulates a portion of the unreinforced conduit. In another aspect, the encapsulating member may include a two-part jacket that surrounds and encapsulates a portion of the unreinforced conduit. The two-part valve bodies and two-part jackets may be joined at various points within the system as part of the overall flow system.

Abstract: An apparatus is provided for the storage and dispensing of a sorbable gas. The apparatus includes a storage and dispensing vessel constructed and arranged for containing a solid-phase physical sorbent medium having a sorbable gas adsorbed by said sorbent medium. The dispensing vessel includes a top head having a dispensing valve coupled to the vessel for discharging the sorbable gas therefrom. The dispensing valve is in fluid flow communication with a wick that extends below the upper third of the vessel top head. The wick collects the sorbable gas for discharge of the gas through the dispensing valve.

Abstract: The invention relates to a valve assembly (10) for a charging device, in particular for a wastegate of an exhaust gas turbocharger, comprising a spindle (100), a lever arm (110) coupled to the spindle (100), and a valve unit (200). The lever arm (110) has a connecting element (112), designed as at least partially spherical, and the valve unit (200) has an accommodation region (212) with at least one first conical accommodation surface (214) in which the connecting element (112) is arranged.

Abstract: An excavator pedal valve, including: a body part in which a flow path for controlling forward and backward traveling is formed in a front and a rear of an interior in a vertical direction; a cam part provided at an upper end of the body part and provided so as to be rotatable in a forward direction and a rear direction with respect to a central axis by driving of a pedal; a rod part provided in each of a front lower portion and a rear lower portion of the cam part to apply force in a vertical direction along the flow path of the body part; and a return elastic part provided in a lower portion of the rod part to return the rod part upward. A rotation part is formed at a lower portion of the cam part having a contact surface with the rod part.

Abstract: A wastegate valve includes a swing arm, a valve body including a valve stem inserted through an insertion hole of the swing arm and a valve plate configured to close a wastegate port, a support plate being fixed to an end of the valve stem on a side opposite to the valve plate, and an elastic member biasing the valve plate in a extending direction of the valve stem. The elastic member includes a plurality of first lug portions and a plurality of second lug portions projecting from an outer peripheral edge of a connecting portion of the elastic member. The first lug portions and the second lug portions curve toward different sides in the extending direction of the valve stem.

Abstract: A system includes a valve, handle, guide, arm, channel, and projection. The handle is proximate the valve and is configured to open and close the valve. The handle is in a first position when the valve is open and in a second position when the valve is closed. The guide is connected to the handle. The arm is connected to the guide. The channel is located on one of the guide or the arm, the channel having opposed first and second ends. The projection is located on the other of the guide or the arm, the projection configured to be received in the channel. Moving the projection past a location of the first end of the channel pulls the guide and the handle, thereby moving the handle from the first position to the second position. The projection can be moved toward the second end while the handle remains in the second position.

Abstract: Provided is a work machine which is capable of accurately preventing a work device from interfering with a load receiving member without separately using a dedicated device. A work machine includes a controller which at least controls rotating of an upper rotating body and vertical movement of a boom in accordance with operation by an operator. The controller controls either a boom-up operation and a rotating operation of the upper rotating body such that a work device is prevented from interfering with a load receiving member in operation of an operator at subsequent lifting and rotating, operation based on part of a locus at a distal end side of the work device at least for one lifting and rotating operation.

Abstract: Various devices and techniques related to magnetically-actuated valves are generally described. In some examples, magnetically-actuated valves may include an asymmetric torque magnetic valve actuator effective to generate a first amount of torque when disposed in a first orientation and a second amount of torque when disposed in a second orientation. In some other examples, the valves may include mechanical stops that prevent binding of the valves in a closed or open position.

Abstract: A dual-levered faucet assembly which allows user to reduce water usage by 50% when needed while operating the faucet in habitual preferred manner of using swift single motion of hand. When any one lever is operated in this manner, the water outflow is 50% of a conventional single-levered faucet. When both levers are operated in this manner, water outflow is same as that of a conventional single-levered faucet.

Abstract: A steam turbine includes a turbine main body having blades supported rotatably, a steam channel which is connected to the turbine main body and in which steam flows, a regulating valve configured to linearly move to adjust opening/closing of the steam channel, and an opening/closing drive mechanism configured to drive the regulating valve. The opening/closing drive mechanism includes an electric motor configured to rotate by an electric power being supplied, a conversion mechanism configured to convert rotational motion of the electric motor into linear motion of the regulating valve, and a brake operated by regenerative energy of the electric motor.

Abstract: An anti-pressure ceramic valve includes: a valve casing; positioning slots configured near the upper opening of the valve casing; a combination-type top base fixed on the upper opening of the valve casing, forming a flanged tube portion extending upward from the center of the flange; positioning snaps raised from the periphery of the combination-type top base to match and fix with the positioning slots; a water-controlling component housed inside the holding space of the valve casing, including a driving base, a valve stem, a turning valve plate, and a fixing valve plate; a base, fixed onto the lower opening of the valve casing to limit the assembly of the water-controlling component; an anti-pressure gap, formed between the positioning snaps and the top wall of the positioning slot; and a sinking ring surface, formed on the top surface of the flange of the combination-type top base.

Abstract: An air source controlling device for a pneumatic nail-gun includes a body, a choke valve and a switch. The body includes a controlling chamber for connecting a compressed air source, an air passage for communicating the controlling chamber and the pneumatic nail-gun, a switch channel communicating the air passage and an accommodation space, and an air vent hole communicating the accommodation space and an external environment. The choke valve is disposed in the controlling chamber and is switchable between a communicating status and a non-communicating status for controlling the opening or closing between the controlling chamber and the air passage. The switch includes an actuating member slidably disposed in the switch channel and the accommodation space without covering the air vent hole. A sealing member is disposed on the actuating member and is sealed with the switch channel. The actuating member activates the choke valve.

Abstract: A lever device for a fuel injection valve includes a housing with a housing recess, at least one lever element arranged in the housing recess, a drive element arranged in the housing recess and coupled to the lever element(s) in order to act upon said at least one lever element in a direction of a force-action axis, and an output element arranged in the housing recess and coupled to the lever element(s) such that this output element is moveable in the force-action axis direction by the at least one lever element. Each lever element includes a coupling section designed or arranged such that the lever element is coupled to the housing, or to the output element, in a rotationally-fixed manner with respect to the force-action axis.

Abstract: The invention relates to a control valve (16) for an air spring, comprising a housing (41), an exhaust duct that has an exhaust tappet (26) for opening of closing the exhaust duct, which exhaust tappet interacts with a first control means (19), a ventilation duct that has a ventilation tappet (27) for opening or closing the ventilation duct, which ventilation tappet interacts with a second control means (20), and a supplemental duct having a supplemental tappet (28) for opening or closing the supplemental duct, which supplemental tappet interacts with a third control means (21), wherein a first air connection A connects to the exhaust duct and a second air connection P connects to the exhaust duct together with the supplemental duct, wherein a first control means (19) and a second control means (20) are arranged to one another in such a manner that said control means cannot be actuated at the same time by an control element (18), and wherein the second control means (20) and the third control means (21) are a

Abstract: Embodiments are directed to an adjustable universal valve handle.

Abstract: Quick connect fluid connectors are described that can be used to connect a first fluid system to a second fluid system for transferring fluids between the first and second fluid systems. The connectors include an eccentric mounted roller mechanism disposed within a slot in a main body and that is in continuous engagement with front and back walls of the slot. The eccentric mounted roller mechanism is used to actuate connection collets when the eccentric mounted roller mechanism is rotated. Since the eccentric mounted roller mechanism is in substantially continuous contact with the front and back walls, this ensures a smooth actuation of the main body and the connection collets without any lost motion.

Abstract: A handle assembly for a valve system is provided. The handle assembly includes a body defining a cavity, an input shaft at least partially located in the cavity, a handle coupled to the input shaft, and a first gear located in the cavity and coupled to the input shaft. The handle assembly further includes an output shaft at least partially located in the cavity, a second gear coupled to the output shaft and located in the cavity engaging the first gear, and at least one key supported by the body. At least one of the input shaft and the output shaft include a first portion having cross-section that is other than circular, and the first portion selectively engages the at least one key, thereby limiting rotation of the at least one of the input shaft and the output shaft.

Abstract: A protocol for assembling a fuel shut off pin valve assembly for a gas turbine engine. The protocol outlines a specific sequence of events in order to ensure failsafe incorporation of a fuel shut off valve assembly within the low pressure turbine area and specifically within the engine casing of the gas turbine.

Abstract: A valve includes a valve body and a handle operably connected to the valve body. The handle has a shut position that prevents fluid flow through the valve body and an open position that permits fluid flow through the valve body. A shut detent is configured to engage with the handle in the shut position, and the valve further includes structure for biasing the handle toward the open position.

Abstract: A valve controller includes a housing, and a lever extending from the housing. The lever includes a protrusion rigidly attached to the lever, and the lever is biased to an initial position. A switch has an open and a closed position. A linkage is pivotally connected to the switch, and the linkage includes a centrally disposed slot configured to receive the protrusion such that movement of the switch controls movement of the linkage and the lever such that moving the switch to the closed position closes a valve controlled by the lever regardless of a position of the lever.

Abstract: An inline dispersal valve that can be used with or without a base. One embodiment includes a rotatable member that is rotatable from a fluid stream obstructing condition to an out-of-the-way condition to prevent fluid diversion into the dispersal valve. Another embodiment includes a lever handle for quickly setting the amount of fluid being diverted into the inline dispersal valve. Another embodiment includes an indicator that can be viewed from a position above the inline dispersal valve. Another embodiment includes a cap that can be secured or removed without the aid of tools. Another embodiment includes a clip that allows one to disassemble the inline dispersal valve for servicing. Another embodiment includes a dispensing valve that can be reversed and still properly divert fluid into a dispersant chamber. Another embodiment includes an inline dispersal valve with a bleed valve positioned to allow one to bring the air volume in the dispersant chamber to the proper level.

Abstract: A flow path opening/closing valve is equipped with a main body having a valve chamber housing therein a rotatable valve body, and a sleeve that abuts without gaps against an inner circumferential surface of the valve chamber, such that the inner circumferential surface of the valve chamber and an inner circumferential surface of the sleeve slide without gaps against an outer circumferential surface of the valve body, for thereby shielding the valve chamber by the valve body and the sleeve. First and second seat members, and first and second o-rings that urge the first and second seat members toward the side of the valve body are arranged inside first and second annular grooves, which are provided on the inner circumferential surface and the inner circumferential surface.

Abstract: Disclosed is a control system that may include a tab pivotally connected to a structure, a coupling member pivotally connected to the structure, and a device operatively connected to the tab via the coupling member, wherein the device is configured to control an external system. Disclosed also is a vehicle that may include a first device and a control system. The control system may include a tab pivotally connected to a structure, a coupling member pivotally connected to the structure, a frangible member connecting the tab and the coupling member to the structure, and a second device operatively connected to the tab via the coupling member, wherein the second device is configured to control the first device.

Abstract: A valve control for a fluid system is provided. The valve control includes a body, a handle, a flange, a mounting bracket, and a sensor. The body is configured to be releasably connected to a port. The handle is swiveably mounted to the body. The flange is releasably connected to the body. The mounting bracket is releasably connected to the flange. The sensor is offset from the handle and adjustably connected to the mounting bracket such that the handle is configured to be bidirectionally operable.

Abstract: A flush valve assembly having a handle assembly positioning bushing for spacing a handle assembly within an opening of the flush valve assembly. The handle assembly positioning bushing having an eccentric opening for receiving the handle such that rotation of the handle assembly positioning bushing with regard to the flush valve assembly body alters the height of the handle assembly and, thus, the volume of water passing through the flush valve assembly during a flush cycle.

Abstract: Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.

Abstract: An inline dispersal valve that can be used with or without a base. One embodiment includes a rotatable member that is rotatable from a fluid stream obstructing condition to an out-of-the-way condition to prevent fluid diversion into the dispersal valve. Another embodiment includes a lever handle for quickly setting the amount of fluid being diverted into the inline dispersal valve. Another embodiment includes an indicator that can be viewed from a position above the inline dispersal valve. Another embodiment includes a cap that can be secured or removed without the aid of tools. Another embodiment includes a clip that allows one to disassemble the inline dispersal valve for servicing. Another embodiment includes a dispensing valve that can be reversed and still properly divert fluid into a dispersant chamber. Another embodiment includes an inline dispersal valve with a bleed valve positioned to allow one to bring the air volume in the dispersant chamber to the proper level.

Abstract: A plug includes: a fluid passage in a main body; a valve body biased to close an inlet of the fluid passage; a cover disposed on an upper end of the main body and closing an upper opening section thereof; and a control lever of the cover that can be pushed downward to open and close the valve body. An engagement claw section is formed on an elastic section of the main body. Provided on the cover is a transverse-plate upper surface for engaging the engagement claw section. A protrusion section of the control lever abuts against and shifts the elastic section in a disengagement direction when pushing the control lever downward. The protrusion section can thus disengage the engagement claw section from the transverse-plate upper surface. The control lever biased upward by the valve body allows the cover to be easily and lightly disassembled from the main body.

Abstract: A wear combination includes a first surface formed by a nickel-based hardface alloy and a second surface formed by steel. The second surface is disposed in frictional contact with the first surface.

Abstract: An integrated multifunctional valve device includes a surface member having a first port and a second port formed therein, a flexible disk member having a central portion and a surrounding portion, a first seat member extending outward from the surface member and coupled to the surrounding portion of the flexible disk member, a second seat member extending outward from the surface member and surrounded by the first seat member. The central portion is movable between an open port position to establish fluid communication between the respective ports and a close port position to stop the fluid communication between the respective ports. The second seat member is configured to selectively receive the central portion of the flexible disk member corresponding to the close port position. The integrated multifunctional valve device also includes an actuator member configured to selectively move the central portion of the flexible disk member into the open port position and the close port position.

Abstract: A single stage vacuum breaker flow regulator includes a diaphragm retained in an elevated position in between atmosphere and an outlet chamber for a gaseous medium. A valve in communication with an inlet chamber is yieldingly urged to a closed position by a spring. Cam levers are movable by the diaphragm upon a reduction in pressure to sub-atmospheric in the outlet chamber. The movement of said cam levers in response to a reduction in pressure is transmitted to a yieldingly movable valve to open said valve to the flow of gas from said inlet chamber to said outlet chamber.

Abstract: A rotational moving point of a connection between a rod and a valve swings between a full open point, at which the valve is fully opened, and a full close point, at which the valve is fully closed. An apex of this swing is set at a point, which is between the full close point and a half point and satisfies a relationship of ?P>?A where ?P denotes an angle that is defined between a first imaginary line, which connects between a bearing center of a rod bearing and the full open point, and a second imaginary line, which connects between the bearing center and the apex of the swing, and ?A denotes an angle that is defined between the first imaginary line and a third imaginary line, which connects between the bearing center and the full close point.

Abstract: A magnetic sensing surface of a stroke sensor is placed in an angular range between a first imaginary line and a second imaginary line. The first imaginary line is an imaginary line that coincides with a center line between first and second magnets of a magnetic movable body when a wastegate valve is placed to have a full close degree of the wastegate valve. The second imaginary line is an imaginary line that coincides with the center line between the first and second magnets when the wastegate valve is placed to have a half degree between the full close degree and a full open degree of the wastegate valve.

Abstract: A high speed valve has a valve body having a flow passage therethrough, and a poppet disposed within the valve body. The poppet is movable between a first position in which the poppet blocks the flow passage and a second position, and the poppet has a piston connected to a stem at a proximal end of the stem. The valve also has a rotating lever release mechanism adjacent a distal end of the stem.

Abstract: A pneumatic control device includes a direction control rod, which is connected to a power switch device for activating and shutting off the power switch device. When the direction control rod is in the positive position, the first direction control valve is activated to drive a pneumatic power device. The pneumatic power device drives a hydraulic power tool to move in positive direction. The first direction control valve is shut-off and the second direction control valve is activated when the direction control rod is moved to the opposite position. The activated second direction control valve drives the pneumatic power device; the pneumatic power device drives the hydraulic power tool to move in opposite direction. When the direction control rod is moved to the opposite position, the activated power switch device is relieved and automatically shut off to stop supplying power to the hydraulic power tool.

Abstract: A flush actuator for use with a flush valve includes: a) a base having a bore extending therethrough between a lower portion and an upper portion; b) a plunger rod positioned within and guided by the bore of the base; and c) a handle mounted to the base, which when moved displaces the plunger rod within the bore of the base. The upper portion of the base includes a beveled nose extending from an end thereof beyond the lower portion. The plunger rod includes a body portion having a first diameter and a recessed area formed in the body portion with a second diameter that is less than the first diameter.

Abstract: A floor panel is formed with an opening for mounting a pedal device. The opening permits a remote control valve to penetrate through the floor panel. The opening has an insertion region configured to allow the joint, the hydraulic hose and a lower portion of a valve body to be inserted thereinto from above the floor panel, and an arrangement region located in side-by-side relation to the insertion region in a second direction and configured to allow the valve body to be arranged therein while being fixed to the floor panel. In top plan view, a length of the opening in the second direction is less than a length of the opening in the first direction, and a length of the arrangement region in the first direction is less than a length of the insertion region in the first direction.

Abstract: An auxiliary operative handle of a rotational bathing faucet includes an operative handle including a conjugating end having a plurality of conjugating protruding hooks extending from the conjugating end; an elongated end extended from the one side of the conjugating end; and a circular wedging slot defined between the conjugating protruding hooks and the elongated end, wherein the operative handle is coupled with a knob of the faucet through the wedging slot and forms a secure position when the conjugating protruding hooks are conjugated with an outer periphery of the knob, so that the elongated end is used as a lever arm to rotate towards left or right, and a user is able to operate the faucet with less force. Also, the user gets to know whether the water is on or off by the position of the elongated end to precisely control the amount of the water.

Abstract: A switching apparatus for a fluid flow with a first fluid-conducting connection (5) and a second fluid-conducting connection (6) between a first and a second treatment device (3, 4) is characterized in that a first pair of switching levers (11, 12) assigned to the first and second distributor valves (7, 8) and a second pair of switching levers (15, 16) assigned to the third and fourth distributor valves (13, 14) are arranged in different planes in such a manner that the switching levers (11, 12) of the first pair can be actuated by an operator without obstruction by the switching levers (15, 16) of the second pair, and vice versa.

Abstract: A microfluidic thermal bend actuated pressure pulse valve having an inlet for receiving a flow of liquid, an outlet for outputting the flow of liquid, a meniscus anchor between the inlet and the outlet such that the flow from the inlet towards the outlet stops at the meniscus anchor where the liquid forms a meniscus, a movable member for contacting the liquid, and, a thermal expansion actuator for displacing the movable member to generate a pulse in the liquid to dislodge the meniscus such that the liquid flow towards the outlet resumes.

Abstract: A system and method for dispensing a predetermined portion of a beverage or drink additive using a cost effective portion control valve that replaces electrical components with mechanical components. The present invention dispenses a controlled portion of a beverage when a lever is activated. A magnetically coupled linkage system can control the exact amount of fluid dispensed. A valve block contains a beverage input, a beverage outlet, and a valve seal. A lever arm is connected to the valve seal and connected to a magnetic housing containing a valve magnet. A yoke pivots about the valve block where the yoke contains a yoke magnet aligned to interface with the valve magnet. A lever arm return spring is connected to the lever arm and the valve block to bias the lever arm return spring to a resting position. As the yoke pivots beyond a predetermined distance, the yoke magnet separates from the valve magnet allowing the lever arm to return to the resting position closing the valve.

Abstract: A controlling seat structure for a faucet contain a body connecting with an outlet pipe and including a controlling seat extending outward from one side thereof, the controlling seat including a cavity to receive a control valve with a lever, a locking member locked on the controlling seat of the body to position the control valve, and the controlling member being fitted on the lever of the control valve, the cavity including a first inlet, a second inlet, an outlet, and two positioning holes, all of which are fixed on an inner bottom of the cavity, characterized in that: between the inner bottom of the cavity of the controlling seat and the control valve is defined an adjusting member, and the adjusting member includes a first, a second, a third orifices, two fourth orifices, a first, a second, a third apertures and two pillars.

Abstract: A manual override device for controlling at least one valve in a power system includes a rod having a first end and a second end. An attachment is configured to attach to a spool of the at least one valve and includes a clearance with respect to the first end of the rod so as to allow the attachment to move with the spool, during ordinary operation of the power system, without contacting the rod. A lever is connected to the second end of the rod and is configured to activate the manual override device by moving the rod in a longitudinal direction such that the first end of the rod makes contact with the attachment to move the spool.

Abstract: A valve having two opposing self-sealing poppets includes a valve body, two poppets, a diaphragm and two levers. The valve body has two passages opposite to each other and two poppet seats disposed opposite to each other and corresponding to the passages. When the valve is in a closed state, both poppets are pressed against the poppet seats and the media is prevented from flowing in either direction. When the valve is in an open state, both poppets axially move away from the poppet seats and the media can flow in either direction.

Abstract: An overmolding ball valve contains a body including a hole and a control lever; a first housing covered on the body and including two first orifices, a second orifice to correspond to the control lever, the body being received in the first housing, the control lever extending out of the second orifice so that the body is capable of rotating in the first housing; a second housing to cover the body and the first housing being injection molded and including a chamber, two channels disposed on the chamber to correspond to the two ends of the hole individually, and a seat secured on another end of the chamber to correspond to the control lever, the body and the first housing being fixed in a mold to injection mold the second housing, the body and first housing are located at the chamber, and the control level extending out of the seat.

Abstract: Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.

Abstract: A system, in certain embodiments, may include a spray coating device having a handle, a fluid head comprising a fluid valve and a trigger coupled to the fluid valve, and a quick disconnect fastener coupling the fluid head with the handle. A system, in other embodiments, may include a spray coating device having a body, a pivot joint coupled to the body, and a trigger having a lever coupled to the pivot joint. The trigger may be configured to move in a first direction. The system also may include a valve disposed in the body and movable in a second direction crosswise to the first direction, wherein the lever is configured to bias the valve in the second direction.