WO2015155786A1 - Système de collecteur à sécurité et à disponibilité - Google Patents

Système de collecteur à sécurité et à disponibilité Download PDF

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Publication number
WO2015155786A1
WO2015155786A1 PCT/IN2014/000746 IN2014000746W WO2015155786A1 WO 2015155786 A1 WO2015155786 A1 WO 2015155786A1 IN 2014000746 W IN2014000746 W IN 2014000746W WO 2015155786 A1 WO2015155786 A1 WO 2015155786A1
Authority
WO
WIPO (PCT)
Prior art keywords
manifold system
sov
valves
valve
energized
Prior art date
Application number
PCT/IN2014/000746
Other languages
English (en)
Inventor
Lakshmikantha.RJ
Loganathan.V
Soundharrajan.S
Original Assignee
Asco Numatics (India) Pvt.Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asco Numatics (India) Pvt.Ltd. filed Critical Asco Numatics (India) Pvt.Ltd.
Publication of WO2015155786A1 publication Critical patent/WO2015155786A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/008—Valve failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3052—Shuttle valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7052—Single-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/85—Control during special operating conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/875—Control measures for coping with failures
    • F15B2211/8757—Control measures for coping with failures using redundant components or assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/895—Manual override

Definitions

  • TITLE A SAFETY AND AVAILABILITY MANIFOLD SYSTEM
  • the present invention relates to a safety and availability manifold system for a continuous process industry, in particular, petroleum downstream complexes and petro-chemical industry.
  • solenoid valve is 3 -port 2-position electro-mechanical valve used to control the flow of fluid through a conduit while being actuated with an external electric supply.
  • Hot swapping is an operation to replace elements of a system without shutting down the entire system.
  • - Shuttle valve is a three-way valve with a floating ball at the center. With an input from one port, the ball shifts and blocks one of the other ports, thus allowing a fluid connection between the other two ports. With inputs from both the ports, the ball moves to the center, thus allowing the flow from the two ports to exit from the third port.
  • a key element that defines the safety for an industrial process is the ease with which the system can be fully or partially turned off in the face of eminent danger.
  • System availability is defined as the degree to which a system stays operable under different operating conditions avoiding spurious trips:
  • valves play a critical role in controlling different operations. The arrangement of these valves defines the objective, whether the sequence satisfies the safety needs or the availability needs or both.
  • To enforce safety the valves are generally arranged in a series. If a single valve fails, the entire line is automatically defunct. To enforce availability, the valves are arranged in parallel. In this case when a single valve fails, the system continues to operate with the functioning of valves mounted in parallel.
  • valves are categorized as manual and automatic.
  • One of the types of automatic valves is the 3/2 poppet valve also referred to as the 3/2 solenoid valve.
  • the 3/2 poppet valve represents a 3 -port 2-position poppet valve.
  • the differentiating factor of the 3/2 valve from a regular 2/2 valve is the presence of an extra port for diversion of the fluid. Normally, fluid flows from an inlet port to an application port and otherwise an outlet port connected to an exhaust port.
  • An object of the present disclosure is to provide a safety and availability manifold system that maintains system availability at all desirable time.
  • Another object of the present disclosure is to provide a safety and availability manifold system that provides for a platform for easy maintenance and repair of valves.
  • Yet another object of the present disclosure is to provide a safety and availability manifold system that provides for individual isolation of solenoid operating valves.
  • a further object of the present disclosure is to provide a safety and availability manifold system that provides for the required degree of availability and safety. Still further object of the present disclosure is to provide a safety and availability manifold system that is reliable.
  • the present disclosure provides a safety and availability manifold system for a petroleum downstream complexes and petro-chemical industry.
  • the manifold system having at least one intake and at least one exhaust comprises:
  • the manifold system further includes:
  • the automatic valve is a 3/2 poppet valve
  • the manual operate valve is a 3/2 valve
  • Figure 1 illustrates a circuit diagram of four solenoid valves in a de-energized condition, in accordance with an embodiment of the present disclosure.
  • Figure 2 illustrates a circuit diagram of two solenoid valves in a de-energized condition, in accordance with another embodiment of the present disclosure.
  • manifold system A preferred embodiment of a safety and availability manifold system, hereinafter referred to as manifold system, of the present disclosure will now be described in detail with reference to the accompanying drawings.
  • manifold system A preferred embodiment of a safety and availability manifold system, hereinafter referred to as manifold system, of the present disclosure will now be described in detail with reference to the accompanying drawings.
  • manifold system A preferred embodiment of a safety and availability manifold system, hereinafter referred to as manifold system, of the present disclosure will now be described in detail with reference to the accompanying drawings.
  • manifold system A preferred embodiment of a safety and availability manifold system, hereinafter referred to as manifold system
  • a key problem faced with current systems of safety and availability used in the manufacturing and processing industries is keeping the system online while conducting the repair and restoration work.
  • the present disclosure describes a manifold system that keeps the entire system online hile allowing the repair and restoration work to be carried out simultaneously.
  • Figure 1 illustrates a circuit of a manifold system 100 with four solenoid valves (SOVs) 102, 104, 106, and 108 in a de- energized condition, in accordance with an embodiment.
  • a de-energized valve represents a failed valve and is subject to repair and replacement.
  • the four solenoid valves (102, 104, 106, 108) are configured to stay ON,' which represents an energized state, during repair works.
  • an intake (shown by arrow) to the manifold system 100 is air, or neutral gas or liquid or natural gas.
  • the four SOVs (102, 104, 106, 108) are arranged in a way that they form series as well as parallel redundancy.
  • the concept of redundancy is that a single valve breakdown would not eliminate the normal operation of the circuit because the redundant valve would perform the required function and maintain the normal operation of the whole system.
  • Each SOV is attached with a 3/2 manually operated valve (MOV) in series.
  • MOVs are represented with the reference number 110 for MOV 1 in series with SOV 1 102, 112 for MOV 2 in series wit SOV 2 104, 114 for MOV 3 in series with SOV 3 106 and 116 for MOV 4 in series with SOV 4 ⁇ 08.
  • These four SOVs (102, 104, 106, 108) are categorized under three channels. According to one embodiment, the SOV 102 and SOV 108 are together categorized under Channel 1, SOV 104 is categorized under Channel 2 and SOV 106 is categorized under Channel 3.
  • the manifold system 100 also uses indicators to depict a status of the SOVs. A total of four indicators A, B, C and D are used. In place of these indicators, electrically operated pressure sensors can also be used at these points. In an embodiment, the manifold system 100 can have either of these or both together.
  • the manifold system 100 further consists of 2 shuttle valves referenced with 118 for the first shuttle valve and 120 for the second shuttle valve.
  • the second shuttle valve 120 is further connected with an actuator 122, which gets actuated on receipt of, for example, air.
  • the actuator 122 is a rack and pinion arrangement with springs attached at opposite ends.
  • the manifold system 100 further consists of an exhaust 124.
  • the actuator 122 can be linear of rotary actuators used for operating process valves.
  • the configuration of the circuit of the manifold system 100 as illustrated in the Figure 1 is such that the redundancy provided SOVs (102, 104, 106, 108) are subject to hot swapping with the help of the MOVs (110, 112, 114, 116).
  • the circuit of the manifold system 100 as illustrated in Figure 1 has three objectives. The first is to deliver the air to the actuator 122. In order to achieve this objective, 4 SOVs are provided, which based on their state are either energized or de-energized. The second objective is to deliver the residue to exhaust 124. The third objective is to enable hot swapping of the de-energized SOVs. All this is achieved by ensuring safety and availability in the system 100.
  • the air is unable to traverse through the system 100, thereby not able to actuate the actuator 122.
  • the exhaust air present in the system 100 is vented to the exhaust 124.
  • the air is able to traverse through the entire system 100, thereby actuating the actuator 122.
  • the air passes through the energized SOV 102, the first shuttle valve 118, the energized SOV 106, the second shuttle valve 120 and actuates the actuator 122.
  • the indicators A and C indicate availability, while indicators B and D indicate unavailability.
  • the indicators, B, C and D indicate availability while the indicator A indicates unavailability.
  • the air passes through the SOV 102, the SOV 104, the first shuttle valve 118, the SOV 106, and the second shuttle valve 120 to actuate the actuator 122.
  • the indicators A, B, C indicate availability while D indicates unavailability.
  • the air passes through the energized SOV 102, the energized SOV 104, the first shuttle valve 118, the SOV 108 and the second ball valve 120 to actuate the actuator 122.
  • the indicators A, B, D indicate availability and indicator C indicates unavailability.
  • the air passes through the energized SOV 2 104, the energized SOV 4 108, and the second shuttle valve 120 to actuate the actuator 122.
  • the indicators A and D indicate availability and indicators B and C indicate unavailability.
  • the air passes through the energized SOV 102, the energized SOV 3 106, the first shuttle valve 118, and the second shuttle valve 120 to actuate the actuator 122.
  • the indicators B and C indicate availability and indicators A and D indicate unavailability.
  • the air passes through the SOV 104, the first shuttle valve 118, the SOV 106 and the second ball valve 120 to actuate the actuator 122.
  • the indicators B and D indicate availability and indicators A and C indicate unavailability.
  • the air is unable to reach the actuator 122.
  • none of the indicators indicate availability. Similar is the case when the SOV 106 and the SOV 4 108 are energized while the SOV 102 and SOV 104 are de- energized, the air is not able to reach the actuator 122. In a further case, wherein only the SOV 104 is energized while the remaining SOVs are de-energized, the air is unable to reach the actuator 122.
  • the residue air at the intake for the SOV 102 finds no escape.
  • the availability for the system 100 is three indicators out of the four, yet the system 100 continues to function.
  • the corresponding MOV 110 is activated to perform hot swapping. This isolates the air supply to the SOV 102, which now can be taken out for maintenance. This ensures no stoppage of the process and system continues to work with the other working valves.
  • Figure 2 illustrates another circuit of the manifold system 100 having two SOVs 202 and 204 in a de-energized condition, in accordance with an embodiment.
  • two MOVs 206 and 208 are provided corresponding to the two SOVs 202 and 204.
  • the SOVs are connected to an actuator 212 via a shuttle valve 210.
  • the manifold system 200 consists of an exhaust 214, as shown.
  • a and B represent indicators indicating availability or unavailability of the system 100.
  • the circuit shown in Figure 2 is also configured to stay 'ON,' which represents an energized state, during repair works.
  • an intake (shown by arrow) to the manifold system 100 is air, or neutral gas or liquid or natural gas.
  • the two SOVs (202, 204) are arranged in a way that they too form series as well as parallel redundancy.
  • the configuration of the circuit of the manifold system 100 as illustrated in the Figure 2 is such that the redundancy provided SOVs (202, 204) are subject to hot swapping with the help of the MOVs (110, 112, 114, 116).
  • the working of the circuit as shown in Figure 2 is similar to as described above with reference to the circuit of Figure 1.
  • the manifold system in accordance with the present disclosure described herein above, has several technical advantages including but not limited to the realization of the following:
  • the equipment that employs the present system remains operational even when there is a fault with one or more valves. - Further, it provides an indication as to which of the valves is non-functional or requires repair/restoration.
  • the system enables repair and restoration of the valves, while the equipment is operational.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un système de collecteur à sécurité et à disponibilité pour des complexes pétroliers d'aval et pour l'industrie pétrochimique, le système de collecteur présentant au moins une admission et au moins un échappement, le système de collecteur comprenant au moins deux soupapes automatiques accouplées l'une à l'autre de manière à former des redondances en série et en parallèle et au moins deux soupapes à commande manuelle correspondant aux deux soupapes automatiques qui forment des redondances en série et en parallèle, les soupapes à commande manuelle étant accouplées fonctionnellement à une soupape automatique suivant un mode de permutation à chaud. Le système de collecteur comporte en outre au moins un clapet-navette accouplé fonctionnellement aux deux soupapes automatiques, un vérin à crémaillère relié à des ressorts attachés à des extrémités opposées, relié fonctionnellement au clapet-navette, un ou plusieurs capteurs de pression à commande électrique et un ou plusieurs indicateurs accouplés électriquement aux deux soupapes automatiques pour indiquer un état de disponibilité de celles-ci.
PCT/IN2014/000746 2014-04-07 2014-12-01 Système de collecteur à sécurité et à disponibilité WO2015155786A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1828/CHE/2014 2014-04-07
IN1828CH2014 IN2014CH01828A (fr) 2014-04-07 2014-12-01

Publications (1)

Publication Number Publication Date
WO2015155786A1 true WO2015155786A1 (fr) 2015-10-15

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CN (1) CN104976168B (fr)
IN (1) IN2014CH01828A (fr)
WO (1) WO2015155786A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3236086A1 (fr) * 2016-02-24 2017-10-25 MAC Valves, Inc. Régulateur de pression proportionnelle avec ensemble de vanne d'isolement
CN108803692A (zh) * 2017-05-03 2018-11-13 费斯托股份有限两合公司 气动控制装置和配备有该气动控制装置的过程控制装置
US10533587B2 (en) * 2015-11-05 2020-01-14 Bifold Fluidpower Limited Valve system
WO2021059019A1 (fr) 2019-09-27 2021-04-01 Asco Numatics (India) Pvt. Ltd. Système de collecteur pour la distribution d'un fluide
WO2021236745A1 (fr) * 2020-05-20 2021-11-25 Ross Operating Valve Company Système de collecteur à vannes redondantes
WO2023242249A1 (fr) * 2022-06-14 2023-12-21 Norgren Gmbh Dispositif de commande d'une unité d'actionneur et système comprenant le dispositif, l'unité d'actionneur et un pantographe

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WO2012037516A2 (fr) * 2010-09-17 2012-03-22 Safoco, Inc. Système de commande d'actionneur et procédé d'utilisation

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US8096891B2 (en) * 1998-06-17 2012-01-17 Light Wave Ltd Redundant array water delivery system for water rides
US7621604B2 (en) * 2003-03-05 2009-11-24 New York Air Brake Pump system for parking brakes for a rail vehicle
WO2012037516A2 (fr) * 2010-09-17 2012-03-22 Safoco, Inc. Système de commande d'actionneur et procédé d'utilisation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10533587B2 (en) * 2015-11-05 2020-01-14 Bifold Fluidpower Limited Valve system
US9903395B2 (en) 2016-02-24 2018-02-27 Mac Valves, Inc. Proportional pressure controller with isolation valve assembly
TWI673587B (zh) * 2016-02-24 2019-10-01 美商麥克閥公司 具有隔離閥總成之比例壓力控制器
EP3236086A1 (fr) * 2016-02-24 2017-10-25 MAC Valves, Inc. Régulateur de pression proportionnelle avec ensemble de vanne d'isolement
AU2017200677B2 (en) * 2016-02-24 2022-09-01 MAC Valves. Inc. Proportional pressure controller with isolation valve assembly
US11242874B2 (en) 2017-05-03 2022-02-08 Festo Se & Co. Kg Pneumatic control device and process control device equipped therewith
CN108803692A (zh) * 2017-05-03 2018-11-13 费斯托股份有限两合公司 气动控制装置和配备有该气动控制装置的过程控制装置
US10927865B2 (en) * 2017-05-03 2021-02-23 Festo Se & Co. Kg Pneumatic control device and process control device equipped therewith
WO2021059019A1 (fr) 2019-09-27 2021-04-01 Asco Numatics (India) Pvt. Ltd. Système de collecteur pour la distribution d'un fluide
US11261887B2 (en) 2019-09-27 2022-03-01 ASCO Numatics (India) Private Limited Manifold system for fluid delivery
WO2021236745A1 (fr) * 2020-05-20 2021-11-25 Ross Operating Valve Company Système de collecteur à vannes redondantes
US11739772B2 (en) 2020-05-20 2023-08-29 Ross Operating Valve Company Redundant valve manifold system
WO2023242249A1 (fr) * 2022-06-14 2023-12-21 Norgren Gmbh Dispositif de commande d'une unité d'actionneur et système comprenant le dispositif, l'unité d'actionneur et un pantographe

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