Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
  • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
  • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K31/00—Actuating devices; Operating means; Releasing devices
  • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
  • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
  • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
  • F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston

Definitions

• the present disclosure relates to valves having closure members whose position is governed by fluid pressure.
• Thermally actuated valves are designed for enabling conduction of fluids from a source in response to sensing of high temperature conditions. In this way, fluid may be conducted away from such high temperature conditions (which may be realized during upset conditions, such as a fire), so as to prevent exposure of the fluid to the high temperature conditions, which may result in a safety hazard.
• thermally actuated valves are not typically designed to enable such conduction of fluids at high flowrates, and it is desirable to provide an apparatus, which works with thermally actuated valves, or other kinds of actuators, to enable acceptable rates of fluid flow in response to a triggering event.
• a valve apparatus comprising: a body including an inlet port, a first outlet port, and a second outlet port, and a fluid passage network extending between the inlet port and the first and second outlet ports; a closure member configured for movement between an open position and a closed position, wherein, in the open position, the first outlet port is open, and wherein, in the closed position, the first outlet port is closed; an upstream compartment, disposed between the inlet port and the closure member; a downstream compartment, disposed between the second outlet port and the closure member; wherein the upstream and downstream compartments are established by the positioning of the closure member relative to the body; a closure member passage extending through the closure member for effecting fluid communicat ion between the upstream and downstream compartments; a first fluid pressure-receiving surface fraction defined on the closure member and configured for receiving forces being applied by fluid disposed within the upstream compartment; and a second fluid pressure-receiving surface fraction defined on the closure member and configured for receiving forces being applied
• a valve apparatus comprising: a body including an inlet port, a first outlet port, and a second outlet port, and a fluid passage network extending between the inlet port and the first and second outlet ports; a closure member configured for movement between an open position and a closed position, wherein, in the open position, the first outlet port is open, and wherein, in the closed position, the first outlet port is closed; an upstream compartment, disposed between the inlet port and the closure member; a downstream compartment, disposed between the second outlet port and the closure member; wherein the upstream and downstream compartments are established by the positioning of the closure member relative to the body; a closure member passage extending through the closure member for effecting fluid communication between the upstream and downstream compartments; a first fluid pressure-receiving surface fraction defined on the closure member and configured for receiving forces being applied by fluid disposed within the upstream compartment; a second fluid pressure-receiving surface fraction defined on the closure member and configured for receiving forces being applied by fluid disposed within the
• an assembly comprising: a first valve apparatus including either one of the valve apparatuses as described above; and a second valve apparatus including: an inlet port fluid coupled to the second outlet port of the first valve apparatus; an outlet port; a fluid passage extending from the inlet port to the outlet port; a closure member moveable between a closed position and an open position, wherein, in the closed position, fluid communication between the inlet port and the outlet port is sealed or substantially sealed; and wherein, in the open position, fluid communication is effected between the inlet port and the outlet port; and an actuator for actuating movement of the closure member from the closed position to the open position in response to a predetermined condition.
• a kit for constructing the valve assembly comprising a first valve apparatus, as described above, and a second valve apparatus including: an inlet port configured for fluid coupling to the second outlet port of the first valve apparatus; an outlet port; a fluid passage extending from the inlet port to the outlet port; a closure member moveable between a closed position and an open position, wherein, in the closed position, fluid communication between the inlet port and the outlet port is sealed or substantially sealed; and wherein, in the open position, fluid communication is effected between the inlet port and the outlet port; and an actuator for actuating movement of the closure member from the closed position to the open position in response to a predetermined condition.
• Figure 1 is a sectional side elevation view of an embodiment of the valve apparatus, illustrating the closure member in the closed position
• Figure 2 is a sectional side elevation view of the valve apparatus of Figure 1 , illustrating the closure member in the open position;
• Figure 3 is a sectional side elevation view of another embodiment of the valve apparatus, illustrating the closure member in the closed position
• Figure 4 is a sectional side elevation view of a further embodiment of the valve apparatus, illustrating the closure member in the closed position;
• Figure 5 is a schematic illustration of an assembly of a valve apparatus of Figure 1 and a second valve apparatus, with the closure member of the second valve apparatus disposed in the closed position;
• Figure 6 is a schematic illustration of the assembly of Figure 5, with the closure member of the second valve apparatus disposed in the open position;
• Figure 7 is a schematic illustration of a system including a tank and the assembly illustrated in Figures 5 and 6;
• Figure 8 is a schematic illustration of a system including a tank and an assembly of a valve apparatus of either one of Figures 1 or 3, and two second valve apparatuses;
• Figure 9 is a schematic illustration of a system including four tanks and an assembly of four valve apparatus of either one of Figures 1 or 3, each one associated with a respective one of the tanks, and a second valve apparatus.
• valve apparatus 10 including a body 20 and closure member 40.
• the body 20 includes an inlet port 22, a first outlet port 24, and a second outlet port 26, and a fluid passage network 28 extending between the inlet port 22 and the first and second outlet ports 24, 26.
• the fluid passage network 28 includes a fluid passage portion 30 and a plurality of fluid passage branches 32 extending from the fluid passage portion 30.
• the closure member 40 is configured for movement between a closed position (see Figure 1) and a open position (see Figure 2). In some embodiments, for example, the closure member 40 is moveable within the fluid passage network 28. In the open position, the first outlet port 24 is open. In the closed position, the first outlet port 24 is closed. In some embodiments, for example, while the first outlet port 24 is disposed in the open condition, fluid communication is effected between the inlet port 22 and the first outlet port 24, and while the first outlet port 24 is disposed in the closed condition, fluid communication between the inlet port 22 and the first outlet port 24 is sealed or substantially sealed.
• An upstream compartment 34 is disposed between the inlet port 22 and the closure member 40.
• a downstream compartment 36 is disposed between the second outlet port 26 and the closure member 40.
• the upstream and downstream compartments 34, 36 are established by the positioning of the closure member 40 relative to the body 20. In this respect, the space occupied by each one of the upstream and downstream compartment changes 34, 36 as the closure member 40 moves between the open and closed positions.
• a closure member passage 42 extends through the closure member 40 for effecting fluid communication between the upstream and downstream compartments 34, 36.
• the fluid communication between the upstream and downstream compartments 34, 36 is effected unconditionally (i.e. independently of any fluid pressure differential between the upstream and downstream compartments 34, 36, or independently of the state of a valve device (such as a check valve) that may be disposed within the closure member passage 42 for selectively opening and closing the closure member passage 42).
• a first fluid pressure-receiving surface fraction 44 is defined on the closure member 40, and is configured for receiving forces being applied by fluid disposed within the upstream compartment 34.
• a second fluid pressure-receiving surface fraction 46 is defined on the closure member 40, and is configured for receiving forces being applied by fluid disposed within the downstream compartment 36.
• the first and second fluid pressure-receiving surface fractions 44, 46 are co-operatively configured such that, while the fluid pressure within the upstream compartment 34 is equal to the fluid pressure within the downstream compartment 36, the closure member 40 is biased to the closed position.
• the closure member 40 is configured for movement from the open position to the closed position in response to application of a force, to the closure member 40, urging the opening of the first outlet port 24, that exceeds a force, applied to the closure member 40, urging the closing of the first outlet port 24.
• the force urging the opening of the first outlet port 24 is being applied by fluid disposed within the upstream compartment 34
• the force urging the closing of the first outlet port 24 is being applied by fluid disposed within the downstream compartment 36.
• the closure member passage 42 is configured for conducting fluid from the upstream compartment 34 to the downstream compartment 36, in response to a pressure differential between the upstream compartment 34 and the downstream compartment 36, at a rate sufficient such that, while the closure member 40 is disposed in the closed position, and the pressure differential between the upstream compartment 34 and the downstream compartment 36 is increasing at a rate that is less than a minimum predetermined rate (such as, for example, 3.3 psi per second), insufficient force is being applied by fluid disposed within the upstream compartment 34 for urging the closure member 40 to the open position.
• a minimum predetermined rate such as, for example, 3.3 psi per second
• the closure member passage 42 is configured to flow fluid from the upstream compartment 34 to the downstream compartment 36, in response to a pressure differential between the upstream compartment 34 and the downstream compartment 36, at a rate sufficient such that, while the closure member 40 is disposed in the closed position, and the pressure differential between the upstream compartment 34 and the downstream compartment 36 is increasing at a rate that is less than a minimum predetermined rate (such as, for example, 3.3 psi per second), the closure member 40 remains disposed in the closed position.
• a minimum predetermined rate such as, for example, 3.3 psi per second
• the closure member 40 is sealingly engaged to the body 20, and the sealing engagement is such that, amongst other things, fluid flow between the upstream and downstream compartments 34, 36 is directed through the closure member passage 42.
• the sealing engagement is such that, while the closure member 40 is disposed in the closed position, (i) fluid flow, between the closure member 40 and the body 20, from the upstream compartment 34 to the first outlet port 24, is prevented or substantially prevented, and (ii) fluid flow, between the closure member 40 and the body 20, from the downstream compartment 36 to the first outlet port 24, is prevented or substantially prevented.
• the sealing engagement is such that, while the closure member 40 is disposed in the open position, fluid flow, between the closure member 40 and the body 20, from the downstream compartment 36 to the first outlet port 24, is prevented or substantially prevented.
• the prevention or substantial prevention of fluid flow, between the closure member 40 and the body 20, from the upstream compartment 34 to the first outlet port 24, is effected by a first sealing member 48a.
• first sealing member 48a is disposed between the inlet port 22 and the first outlet port 24.
• the prevention or substantial prevention of fluid flow, between the closure member 40 and the body 20, from the downstream compartment 36 to the first outlet port 24 is effected by a second sealing member 48b.
• the second sealing member 48b is disposed between the second outlet port 26 and the first outlet port 24.
• the closure member 40 includes the first and second sealing members 48a, 48b.
• the closure member 40 carries the first and second sealing members 48a, 48b.
• Exemplary sealing members 48a, 48b include o-rings.
• the first fluid pressure-receiving surface fraction 44 is defined as that surface fraction of the closure member 40 disposed upstream of the first sealing member 48a
• the second fluid pressure-receiving surface fraction 46 is defined as that surface fraction of the closure member 40 disposed downstream of the second sealing member 48b.
• the total surface area of the second fluid pressure-receiving surface fraction 44 exceeds the total surface area of the first fluid pressure-receiving surface fraction 46
• the total surface area of the second fluid pressure-receiving surface fraction 46 exceeds the total surface area of the first fluid pressure-receiving surface fraction 44 by at least 20%, such as, for example, by at least 50%.
• the total surface of the surface fraction 46 exceeds the total surface area of the surface fraction 44 by between 50% and 150%.
• the movement of the closure member 40 between the open position and the closed position is effected within the fluid passage network 28, and the closure member 40 is moveable through a fluid passage portion 30 of the fluid passage network 28.
• the valve apparatus 10 further comprises a passage-defining surface 38 defined within the body 20.
• the passage-defining surface 38 is co-operatively configured with the closure member 40 such that, when the closure member 40 is disposed in the closed position: (i) the first sealing member 48a sealingly engages an upstream surface portion 38a of the passage-defining surface 38 of the body 20 for preventing, or substantially preventing, fluid flow, between the closure member 40 and the body 20, from the upstream compartment 34 to the first outlet, and (ii) the second sealing member 48b sealingly engages a first downstream surface portion 38b of the passage-defining surface 38 of the body 20 for preventing, or substantially preventing, fluid flow, between the closure member 40 and the body 20, from the first downstream compartment 36 to the first outlet port 24.
• the passage-defining surface 38 is further cooperatively configured with the closure member 40 such that, when the closure member 40 is disposed in the open position (see Figure 2): (i) the first sealing member 48a is spaced apart from the passage-defining surface 38 of the body 20 such that a flow path is established between the inlet port 22 and the first outlet port 24, and (ii) the second sealing member 48b sealingly engages a second downstream surface portion 38c of the passage-defining surface 38 of the body 20 for preventing, or substantially preventing, fluid flow, between the closure member 40 and the body 20, from the downstream compartment 36 to the first outlet port 24.
• the first sealing member 48a in moving from the open to the closed position, the first sealing member 48a is moved to a location within the fluid passage portion 30 having an enlarged cross-sectional area relative to the cross-sectional area at the upstream surface portion 38b, such that the sealing engagement of the first sealing member 48a to the passage-defining surface 38 is suspended.
• the second sealing member 48b in moving from the open to the closed position, the second sealing member 48b continues to sealingly engage the passage-defining surface 38.
• the axis of the inlet port 22 is aligned, or substantially aligned, with the fluid passage portion 30 through which the closure member 40 is moveable. This allows fluid from inlet port 22 to flow efficiently to fluid passage portion 30, with limited pressure loss.
• the valve apparatus 10 further includes a one-way valve 60 disposed within the closure member passage 42.
• the one-way valve 60 is configured for preventing, or substantially preventing, fluid flow, through the closure member passage 42, from the downstream compartment 36 to the upstream compartment 34.
• the one-way valve 60 includes a check valve.
• the valve apparatus 10 further includes a retractable detent member 50.
• the retractable detent member 50 is configured for movement between an interference fit position and a retracted portion. In the interference fit position, the retractable detent member 50 is disposed in an interference fit relationship with the closure member 40 for interfering with movement of the closure member 40 from the closed position to the open position. In the retracted position, the closure member 40 becomes moveable to the open position.
• the retractable detent member 50 is configured to retract from the interference fit position in response to application of a minimum valve opening force to the closure member 40.
• the retractable detent member 50 is disposed for movement within a compartment 52 of the body 20.
• the retractable detent member 50 includes a ball detent which is biased to the interference fit position by a biasing member 54, such as a resilient member, such as a spring
• valve apparatus 10 is configured for regulating the flow of gaseous material between the inlet port 20 and outlet ports 24,26.
• any one of the embodiments of the valve apparatus 10, described above is incorporated within an assembly 100 for effecting the venting of gaseous material that is contained within a gaseous material supply source, such as a tank 200 (see Figure 6).
• a gaseous material supply source such as a tank 200 (see Figure 6).
• valve apparatus 10 hereinafter, the "first valve apparatus 10"
• the assembly 100 includes the first valve apparatus 10 and the second valve apparatus 300.
• the second valve apparatus 300 includes an inlet port 302, an outlet port 304, a discharge fluid passage 306, and a closure member 308.
• the inlet port 302 is fluidly coupled to the second outlet port 26 of the first valve apparatus 10.
• the outlet port 304 of the second valve apparatus is configured for venting received gaseous material to the immediate environment (for example, the atmosphere).
• the closure member 308 is moveable between a closed position and an open position. In the closed position, fluid communication between the inlet port 302 and the outlet port 304 is sealed or substantially sealed. In the open position, fluid communication is effected between the inlet port and the outlet port 304.
• the discharge fluid passage 306 extends from the inlet port 302 to the outlet port 304 for effecting fluid communication between the inlet and outlet ports 302, 304 when the closure member 308 is disposed in the open position.
• the second valve apparatus 300 further includes an actuator 310 for actuating movement of the closure member 308 from the closed position to the open position in response to a predetermined condition.
• the predetermined condition is a predetermined minimum temperature, such that the second valve apparatus 300 includes a thermally actuated valve.
• Exemplary thermally actuated valves are described and illustrated in U.S. Patent Publication No 2012/0199764.
• the actuator 310 includes a temperature responsive portion 311, such as, for example, a shape memory alloy.
• the temperature responsive portion 31 1 is in the form of a wire 31 1.
• the actuator 310 includes a displaceable interference-effecting portion 310a.
• the displaceable interference-effecting portion 310a is configured for displacement between an interference position (see Figure 5) and a non- interference position (see Figure 6). In the interference position, the displaceable interference- effecting portion 310a effects interference with displacement of the closure member 308 from one of the open position and the closed position (in the case of the illustrated embodiment, this is the closed position) to the other one of the open position and the closed position (in the case of the illustrated embodiment, this is the open position).
• the portion while the displaceable interference-effecting portion 310a is in the interference position, the portion extends into the passageway 301 , thereby effecting interference to the movement of the closure member 308 within the passageway 301 , and thereby effecting interference with the displacement of the closure member 308.
• the closure member 308 is displaceable from the closed position to the open position in response to a sufficient pressure differential provided between the inlet 306 and the outlet 304 (i.e. while the displaceable interference- effecting portion 310a is disposed in the non-interference position, the closure member 308 is displaced from the closed position to the open position when the pressure differential between the inlet 306 and the outlet 304 exceeds a predetermined minimum pressure differential).
• the inlet 306 is disposed in fluid communication with a container 200 (such as a tank), via the first valve apparatus 10 (see Figure 7), and is, thereby, exposed to fluid pressure within the container 200, and the outlet 304 is disposed in fluid communication with the atmosphere and is, thereby, exposed to atmospheric pressure, such that, so long as the fluid pressure within the container 200 exceeds atmospheric pressure by a predetermined minimum threshold amount, and so long as the displaceable interference-effecting portion 310a is disposed in the non-interference position, the closure member 308 will become displaced from closed position to the open position.
• a container 200 such as a tank
• the first valve apparatus 10 see Figure 7
• the outlet 304 is disposed in fluid communication with the atmosphere and is, thereby, exposed to atmospheric pressure, such that, so long as the fluid pressure within the container 200 exceeds atmospheric pressure by a predetermined minimum threshold amount, and so long as the displaceable interference-effecting portion 310a is disposed in the non-interference position, the closure member 308 will become displaced from
• the actuator 310 further includes the temperature responsive portion 31 1.
• the temperature responsive portion 31 1 is configured to effect the displacement of the displaceable interference-effecting portion 310a (and, therefore, the actuator 310) in response to receiving of heat energy by at least a portion of the temperature responsive portion 31 1.
• the at least a portion of the temperature responsive portion 31 1 effects exertion of a tensile force on the displaceable interference-effecting portion 310a, thereby effecting the displacement of the displaceable interference-effecting portion 310a, and thereby effecting removal of the interference to the displacement of the closure member 308, such that the closure member 308 becomes displaceable, from one of the open position and the closed position to the other one of the open position and the closed position, in response to a pressure differential, existing between the inlet 306 and the outlet 304, which exceeds a minimum predetermined threshold pressure differential.
• the receiving of heat energy by at least a portion of the temperature responsive portion 31 1 effects a change in shape of the at least a portion of the temperature responsive portion 31 1 such that the displacement of the displaceable interference-effecting portion 310a is effected.
• the temperature responsive portion 31 1 includes a longitudinal axis, and the change in shape includes a reduction in length of the temperature responsive portion 31 1 along its longitudinal axis.
• a fire or other heat source which can effect displacement of the actuator 308, as above-described, can also effect heating of a tank to which the second valve apparatus 300 is attached.
• the displacement of the actuator 308 is effected by the heat before the heating of the tank 200 effects the failure of the tank 200.
• "Failure" of the tank 200 occurs when the integrity of the tank 200 is compromised, such as by, for example, rupturing, breaking or melting.
• the displacement of the displaceable interference- effecting portion 310a from the first position to the second position can directly effect displacement of the closure member 308, whereas in other embodiments (such as those illustrated), the displacement of the displaceable interference-effecting portion 310a from the first position to the second position indirectly effects displacement of the closure member 308.
• the displaceable interference-effecting portion 310a urges an intermediate member, in this case, a single ball 315, against the closure member 308 and is thereby interfering with displacement of the closure member 308 from one of the open position and the closed position (in this case, the closed position) to the other one of the open position and the closed position (in this case, the open position) by a sufficient fluid pressure differential, between the inlet 17 and the outlet 18.
• the ball 315 is used to transmit most of the force applied to the closure member 308, by the pressure exerted from the inlet, onto the body 320 of the valve apparatus 300, while transmitting a smaller force onto the displaceable interference-effecting portion 310a.
• the use of the ball 315 as an intermediate member results in less frictional resistance to the displaceable interference-effecting portion 310a when it is displaced by tensile forces exerted by a temperature responsive portion 31 1, compared to when there is no intermediate member and the displaceable interference-effecting portion 310a is directly engaged to the closure member 308.
• This allows for greater flexibility in the choice of materials for the temperature responsive portion 31 1, which may, for example, be a wire (for example, comprising a shaped memory alloy).
• the material of construction of the ball 315 is steel and the diameter of the ball is 0.250 inches.
• the first outlet port 24 of the first valve apparatus 10 has a larger cross-sectional area than the outlet port 304 of the second valve apparatus 300.
• the cross-sectional area of the first outlet port 24 of the first valve apparatus 10 is larger than the cross-sectional area of the outlet port 304 of the second valve apparatus 300 by at least 200%, such as, for example at least 400%.
• a fluid passage of the first valve apparatus 10 defined by a combination of the inlet port 22, the closure member passage 42, and the second outlet port 26 of the first valve apparatus 10, is configured to provide greater resistance to fluid flow.
• fluid pressure within the downstream compartment 36 becomes substantially lower than the fluid pressure within the upstream compartment 34, such that the force of the fluid acting on the first fluid pressure-receiving surface fraction 44 is greater than the force of the fluid acting on the second fluid pressure-receiving surface fraction 46.
• the closure member 40 moves from the open position to the closed position, and fluid flows from the upstream compartment 34 to the first outlet port 24.
• the second outlet port 26 functions as a piloting port to the second valve apparatus 300, so as to enable more rapid opening of the closure member 40 of the first valve apparatus 10.
• the cross-sectional area of the outlet port 304 of the second valve apparatus 300 is larger than the minimum cross-sectional area of the closure member passage 42 of the first valve apparatus 10.
• the assembly 100 is constructed from a kit including the first valve apparatus 10 and the second valve apparatus 300.
• the kit may further include instructions to effect the construction of the assembly 100.
• a system 400 is provided, and the system 400 includes a tank 200 that is fluidly coupled to any one of the embodiments of the assembly 100 described above.
• the inlet port 22 of the first valve apparatus 10 of the assembly 100 is fluidly coupled to an outlet port 202 of the tank 200 for receiving gaseous material (that is contained within the tank 200) from the tank 200.
• the first valve apparatus 10 includes the one-way valve 60 disposed within the closure member passage 42 (see above)
• the tank 200 discharges gaseous material through another outlet (such as, for example, to supply gaseous material to another receiver, such as another tank, or a unit operation) such that pressure within the tank 200 and, therefore, the upstream compartment 34, becomes reduced, by providing the one-way valve 60 within the closure member passage 42, depressurization of the downstream compartment 36 of the first valve apparatus 10 is prevented, or substantially prevented.
• the one-way valve 60 permits pressurizing of the tank 200 at a faster rate, without risk of inadvertently actuating opening of the closure member 40, than would be possible without the one-way valve 60.
• the first valve apparatus 10 includes a plurality of second outlet ports extending from the downstream compartment 36, and each one of the second outlet ports 26, independently, is fluidly coupled to a respective second valve apparatus 300.
• the system 500 includes a tank 200 that is fluidly coupled to the first valve apparatus 10, and each one of the second outlet ports 26 of the first valve apparatus, independently, is fluidly coupled to a respective second valve apparatus 300 (such that the system includes a plurality of second valve apparatuses).
• the tank 200 may be vented in response to a predetermined condition that effects actuation of the actuator 310 of at least one of the second valve apparatuses 300.
• the second valve apparatuses 300 may be co-operatively positioned to actuate opening of the first valve apparatus 10 in response to an upset condition at any one of several different locations.
• the system 400 includes a plurality of tanks 200, and each one of the tanks, independently, is fluidly coupled to a respective first valve apparatuses 10, such that a plurality of first valve apparatuses 10 is provided. All of the first valve apparatuses 10 are fluidly coupled to a second valve apparatus 300. In such configuration, all of the tanks 200 may be vented, simultaneously, or substantially simultaneously, in response to a predetermined condition that effects actuation of the actuator 310 of the second valve apparatuses 300. In this respect, all of the tanks are disposed for venting in response to an upset condition that effects actuation of the actuator 310 of the second valve apparatus 300.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Lift Valve (AREA)
• Multiple-Way Valves (AREA)
• Safety Valves (AREA)

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• 2016
  • 2016-05-25 CA CA3024878A patent/CA3024878A1/en active Pending
  • 2016-05-25 EP EP16902616.8A patent/EP3464972A4/de not_active Ceased
  • 2016-05-25 EP EP23177403.5A patent/EP4242505A3/de active Pending
  • 2016-05-25 WO PCT/CA2016/000155 patent/WO2017201599A1/en unknown
  • 2016-05-25 BR BR112018074193-0A patent/BR112018074193A2/pt not_active Application Discontinuation

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