MANIFOLD SYSTEM FOR FLUID DELIVERY

FIELD

[0001] The present disclosure generally relates to a manifold system for continuous process delivery. More particularly, the present disclosure relates to a safety and availability manifold system for petroleum downstream complexes and petro-chemical industries.

DEFINITIONS

[0002] As used in the present disclosure, the following terms are generally intended to have the meaning as set forth below, except to the extent that the context in which they are used indicate otherwise.

[0003] Manifold - The term “Manifold” hereinafter refers to an equipment designed to converge multiple junctions into a single channel or diverge a single channel into multiple junctions for facilitating distribution of fluids.

[0004] Hot swapping - The term “hot swapping” hereinafter refers to a process of adding and replacing components of a system without having to shut down the power to the system.

[0005] Shuttle Valve- The term “shuttle valve” hereinafter refers to a three-way valve with a floating ball at the center. The valve has two input ports and one output port. With an input from one input port, the ball shifts and blocks the other input port, thus allowing a fluid connection between the one input port and the output port. With inputs from both the input ports, the ball moves to center, thus allowing the flow from the two input ports to exit from the output port.

BACKGROUND

[0006] The background information herein below relates to the present disclosure but is not necessarily prior art.

[0007] Currently, all the petrochemical, chemical, refining and petroleum industries focus on improving safety and availability of systems involved in carrying out various industrial processes. A key element that defines the safety of an industrial process is the ease with which the system can be fully or partially turned off in the face of eminent danger. In contrast, availability is defined as the degree to which a system stays operable under different operating conditions avoiding spurious trips. In processing and manufacturing industries, valves play a critical role in controlling different operations. The arrangement of these valves define the safety and availability of the industrial systems in which they are employed. For example, to enforce safety, the valves are generally arranged in series. So 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 due to the functioning of parallel valves.

[0008] Typically, a fluid delivery system in a process plant comprises many valves. The valves are categorized as manual and automatic. One of the types of automatic valves is a 3/2 poppet valve also referred to as 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. In one position, a fluid flows from an inlet port of the poppet valve to an application port and in other position, the fluid flows from the inlet port to an outlet port connected to an exhaust port. In a process plant, failure of such poppet valves is inevitable. When a valve fails, isolation of the valve from the system is required to carry out maintenance and replacement. This affects the reliability and availability of the system.

[0009] Thus, one of the key problems associated with conventional systems is the repair and restoration process under which there is an unavoidable requirement to shut the entire process in order to repair and restore valves. In a continuous process industry, this means a huge production loss for the whole time the valves are being restored.

[0010] To overcome the aforementioned problems, a manifold system for improving safety and availability of industrial processes is described in patent publication WO2015/155786 A1 . Figure 1 shows a circuit diagram of the typical manifold system (hereinafter referred to as “system (100)”) described in patent publication WO2015/155786. The system (100) comprises four Solenoid Operated Valves (SOVs) (V1 , V2, V4, V5) and four isolating valves (11 , I2, I4, I5) connected between a fluid inlet (102) and a fluid outlet (104). This system (100) includes only two shuttle valves (S1 , S2). One shuttle valve (S1 ) connects two SOVs (V1 ,

V2) located near the fluid inlet (102) with the SOV (V4) located near the fluid outlet (104) and the other shuttle valve (S2) connects two SOVs (V4, V5) located near the fluid outlet (104) with the fluid outlet (104). There is no shuttle valve connecting the two SOVs (V1 , V2) located near the fluid inlet (102) with the other SOV (V5) located near the fluid outlet (104). This reduces the system availability. For example, when only two SOVs (V1 , V5) are functioning and the other SOVs (V 2, V4) are faulty, the system (100) will not allow flow of fluid from the fluid inlet (102) to the fluid outlet (104) as the shuttle valve (S1 ) does not allow fluid to flow from the SOV (V1) to the SOV (V5). Thus, the system (100) output is zero even when two SOVs (V1 and V5) are functioning.

[0011] The following truth table (Table 1 ) depicts output of the system (100) for different operating states of the SOVs (V1 , V2, V4, V5). The operating states include ON state/energized state (depicted by logic 0) and OFF state/de-energized state (depicted by logic 1 ). An OFF state or de-energized valve represents a failed valve that is subject to repair and replacement.

Table 1

[0012] Following observations can be drawn from the truth table above:

(i) when both the SOVs (V1 , V2) located near the inlet (102) are in ON state and at least any one of the SOVs (V4, V5) located near the outlet (104) is in ON state, the fluid is able to traverse through the system (100) to the outlet (104).

(ii) when both the SOVs (V4, V5) located near the outlet (104) are in ON state and at least any one of the SOVs (V1 , V2) located near the inlet (102) is in ON state, the fluid is able to traverse through the system (100) to the outlet (104).

(iii) when at least any one of the SOVs (V1 , V2) located near the inlet (102) is in ON state and the SOV (V4) connected to the shuttle valve (S1 ) is in ON state, the fluid is able to traverse through the system (100) to the outlet (104).

(iv) when two SOVs (V2, V5) connected in series are in ON state, the fluid is able to traverse through the system (100) to the outlet (104).

[0013] However, when the SOV (V1) located near the inlet (102) is in ON state and the SOV (V5) located near the outlet (104) is in ON state, there is no transfer of fluid from the inlet (102) to the outlet (104) as the shuttle valve (S1) is not connected to the SOV (V5). This leads to a reduction in the system availability.

[0014] Conventional systems, as the one shown in Figure 1 , do not provide shuttle valve redundancy. Further, there is no means to bypass an entire fluid delivery system, or provide redundancy to an entire fluid delivery system, when there are multiple failed valves and replacement of all the failed valves is required.

[0015] Therefore, there is felt a need for a manifold system that facilitates flow of fluid from all the SOVs located near the fluid inlet to all the SOVs located near the fluid outlet, thereby improving the system availability.

OBJECTS

[0016] Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:

[0017] It is an object of the present disclosure to ameliorate one or more problems of the prior art or to at least provide a useful alternative.

[0018] It is an object of the present disclosure to provide a manifold system for fluid delivery.

[0019] Another object of the present disclosure is to provide a manifold system for fluid delivery that maintains system availability at all the times.

[0020] Still another object of the present disclosure is to provide a manifold system for fluid delivery that facilitates easy maintenance and repair of solenoid operated valves.

[0021] Yet another object of the present disclosure is to provide a manifold system for fluid delivery that is reliable.

[0022] Still another object of the present disclosure is to provide a manifold system for fluid delivery that facilitates individual isolation of solenoid operated valves.

[0023] Yet another object of the present disclosure is to provide a manifold system for fluid delivery that improves the degree of safety and availability of an industrial process.

[0024] Still another object of the present disclosure is to provide a manifold system for fluid delivery that facilitates easy maintenance of a single valve without disturbing the entire system.

[0025] Yet another object of the present disclosure is to provide a manifold system for fluid delivery that facilitates easy maintenance of multiple faulty valves without having to shut down the entire process.

[0026] Still another object of the present disclosure is to provide a manifold system for fluid delivery that facilitates replacement of multiple faulty valves without disturbing the outlet flow.

[0027] Yet another object of the present disclosure is to provide a manifold system for fluid delivery that facilitates easy replacement of shuttle valves.

[0028] Still another object of the present disclosure is to provide a manifold system for minimizes the probability of total shutdown.

[0029] Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.

SUMMARY

[0030] The present disclosure envisages a manifold system for fluid delivery. The manifold system comprises a plurality of manifold assemblies. Each of the manifold assemblies comprises a first set of Solenoid Operated Valves (SOVs), a second set of SOVs, a plurality of first isolating valves, at least one first shuttle valve, and at least one redundant shuttle valve. The first set of SOVs are positioned near a fluid inlet and comprise at least two SOVs arranged in parallel. The second set of SOVs are connected in series with the first set of SOVs. The second set of SOVs are positioned near a fluid outlet and comprise at least two SOVs arranged in parallel. Each of the first isolating valves are coupled to each of the SOVs. Each first isolating valve is adapted to facilitate hot swapping of the associated SOV. The first shuttle valve is connected between the first set of SOVs and the second set of SOVs. The redundant shuttle valve is configured to provide redundancy to the first shuttle valve in a way that the flow of a fluid is facilitated from each of the first set of SOVs to each of the second set of SOVs, thereby improving the system availability. The fluid comprises at least one of air, neutral gas, liquid, and natural gas.

[0031] Advantageously, the system includes a bypass valve for providing an alternative bypass path to the fluid from the fluid inlet to the fluid outlet to facilitate maintenance of the manifold assembly.

[0032] Advantageously, the manifold assemblies are connected in parallel to improve the system reliability. Each of the manifold assemblies is connected to the fluid inlet via a second isolating valve and to the fluid outlet via a common outlet shuttle valve.

[0033] In an embodiment, the first isolating valves and the second isolating valves are Manually Operated Valves (MOV).

[0034] In an embodiment, the system includes a plurality of indicators. Each of the indicators is connected to each of the SOVs to indicate the status of the SOVs. In another

embodiment, the system includes a plurality of pressure sensors. Each of the pressure sensors is connected to each of the SOVs to indicate the status of the SOV.

[0035] In an embodiment, the system includes at least one second shuttle valve connecting the second set of SOVs to the fluid outlet. In another embodiment, each of the manifold assemblies includes a plurality of third shuttle valves. Each of the third shuttle valves is operatively coupled to one first shuttle valve and one redundant shuttle valve at its input ports to facilitate the flow of the fluid from each of the first set of SOVs to each of the second set of SOVs, for improving shuttle valve redundancy and system availability.

[0036] In an embodiment, the SOVs are 3/2 poppet valves. In an embodiment, the isolating valves are 3/2 valves.

[0037] In an embodiment, the system includes at least one exhaust to vent out exhaust residue into the atmosphere.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING

[0038] A manifold system for fluid delivery of the present disclosure will now be described with the help of the accompanying drawing, in which:

[0039] Figure 1 illustrates a circuit diagram of a typical manifold system;

[0040] Figure 2 illustrates a circuit diagram of the manifold system of Figure 1 with a bypass valve;

[0041] Figure 3 illustrates a circuit diagram of a manifold system of the present disclosure having a single manifold assembly including four solenoid operated valves;

[0042] Figure 4 illustrates a circuit diagram of the manifold system of Figure 3 having two manifold assemblies; and

[0043] Figure 5 illustrates a circuit diagram of a manifold system of Figure 3 having a manifold assembly with six solenoid operated valves.

LIST OF REFERENCE NUMERALS

300 - System

10 - Manifold Assembly

102 - Fluid inlet

104 - Fluid outlet

106 - Actuator

108 - Exhaust

V1 -V6 - Solenoid operated valves (SOVs)

11-16 - First isolating valves

M1 , M2 - Second isolating valves

B1 - Bypass valve

51 , S4-S6 - First shuttle valves

S3, S4’-S6’ - Redundant shuttle valves

52, S7-S9 - Second shuttle valves

S1 ’-S3’ - Third shuttle valves

510 - Common outlet shuttle valve

511 — Shuttle valve for bypass valve

A, B, C, D, E, F, G - Indicators

P1 , P2, P3, P4, P5, P6, PB1 - Pressure sensors

DETAILED DESCRIPTION

[0044] Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.

[0045] Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details, are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.

[0046] The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, integers, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, integers, operations, elements, components, and/or groups thereof.

[0047] When an element is referred to as being "mounted on," “engaged to,” "connected to," or "coupled to" another element, it may be directly on, engaged, connected or coupled to the other element. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed elements.

[0048] The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, or section from another element, component, or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.

[0049] A manifold system for fluid delivery (hereinafter referred as “system (300)”), of the present disclosure, is now being described with reference to Figure 2 through Figure 5. The system (300) is designed to improve safety and reliability of the industrial process in which it is employed.

[0050] Referring to Figures 3, 4 and 5, the manifold system (300) of present disclosure comprises a plurality of manifold assemblies (10). Each of the manifold assemblies (10) include a first set of SOVs [(V1-V2), (V1 -V3)], a second set of SOVs [(V4-V5), (V4-V6)], a plurality of first isolating valves [(11-12, 14-15), (11-16)], at least one first shuttle valve [(S1 ), (S4-S6)], and at least one redundant shuttle valve [(S3), (S4’-S6’)]. The first set of SOVs [(V1-V2), (V1-V3)] are positioned near a fluid inlet (102) and comprise at least two SOVs [(V1-V2), (V1-V3)] arranged in parallel. The second set of SOVs [(V4-V5), (V4-V6)] are connected in series with the first set of SOVs [(V1-V2), (V1-V3)]. The second set of SOVs [(V4-V5), (V4-V6)] are positioned near a fluid outlet (104) and comprise at least two SOVs [(V4-V5), (V4-V6)] arranged in parallel. Each of the first isolating valves [(11 -12, 14-15), (11 -16)] are coupled to each of the SOVs [(V1-V2, V4-V5), (V1 -V6)]. Each first isolating valve [(11-12, 14-15), (11-16)] is adapted to facilitate hot swapping of associated SOV [(V1 -V2, V4-V5), (V1-V6)].

[0051] The configuration of the circuit of the manifold system (300) is such that the redundancies provided by the SOVs [(V1 -V2, V4-V5), (V1-V6)] are subject to hot swapping with the help of the first isolating valves [(11-12, 14-15), (11-16)]. For example, with reference to Figure 3, when the SOV (V1 ) is in de-energized state and the rest of the SOVs (V2, V4, V5)

are in energized state, the fluid at the intake for SOV (V1) finds no escape. In such a state, the corresponding first isolating valve (11) is activated to perform hot swapping. This isolates the fluid supply to the SOV (V1), which now can be taken out for maintenance. This ensures no stoppage of the process and the system (300) continues to work with the other working valves (V2, V4, V5).

[0052] As shown in Figures 3-5, the first shuttle valve [(S1), (S4-S6)] is connected between the first set of SOVs [(V1-V2), (V1-V3)] and the second set of SOVs [(V4-V5), (V4-V6)]. The redundant shuttle valve [(S3), (S4’-S6’)] is configured to provide redundancy to the first shuttle valve [(S1), (S4-S6)] in a way that the flow of a fluid is facilitated from each of the first set of SOVs [(V1-V2), (V1-V3)] to each of the second set of SOVs [(V4-V5), (V4-V6)], thereby improving the system availability. The fluid to be transferred from the fluid inlet (102) to the fluid outlet (104) comprises at least one of air, neutral gas, liquid, and natural gas.

[0053] In an embodiment, the system (100) further includes at least one second shuttle valve [(S2), (S7-S9)] connecting the second set of SOVs [(V4-V5), (V4-V6)] to the fluid outlet (104). The second shuttle valves [(S2), (S7-S9)] may be further connected to an actuator (106), which gets actuated on receipt of the fluid. According to an embodiment, the actuator (106) is a rack and pinion arrangement with springs attached at opposite ends.

[0054] Thus, in the system (100) of Figure 3, the first set of SOVs i.e. the SOVs (V1 , V2) located near the fluid inlet (102) are connected to the shuttle valves (S1 , S3). The first shuttle valve (S1) is connected to the SOV (V4) and the redundant shuttle valve (S3) is connected to the SOV (V5) through the first isolating valves (I4) and (I5) respectively. The second set of SOVs (V4, V5) are connected to the fluid outlet (104) through the second shuttle valve (S2).

[0055] The following truth table (Table 2) depicts output of the system (300) of Figures 3 and 4 under different operating states of the SOVs (V1 , V2, V4, V5). The states include ON state/energized state (depicted by logic 0) and OFF state/de-energized state (depicted by logic 1).

[0056] It can be seen from the table 2 (row 14) that introduction of an additional redundant shuttle valve (S3) in the system (300) causes the fluid to be available at the outlet (104) even when the SOVs (V2 and V4) are in a de-energized/OFF state, thereby improving the system reliability and availability.

[0057] Advantageously, the plurality of manifold assemblies (10) are connected in parallel as shown in Figure 4. This leads to a further improvement in the system reliability and availability. Each of the manifold assemblies (10) is connected to the fluid inlet (102) via a second isolating valve (M1 , M2). Each of the manifold assemblies (10) is connected to the fluid outlet (104) via a common outlet shuttle valve (S10). This arrangement makes it easier to replace one or more faulty SOVs (V1 , V2, V4, V5) or faulty shuttle valves (S1 , S2, S3) online i.e. when the system (300) is operating. Even four SOVs (V 1 , V2, V4, V5) of the embodiment of Figure 3 can be simultaneously removed and replaced without affecting the flow of fluid through the outlet (104). The probability of failure or total shutdown of the system (300) is also minimized.

[0058] In an embodiment, the first isolating valve [(11-12, 14-15) (11-16)] and the second isolating valve (M1 , M2) are Manually Operated Valves (MOVs).

[0059] As shown in Figures 1 and 2, in an embodiment, the system (300) includes a plurality of indicators [(A, B, C, D), (A, B, C, D, E, F)] wherein each of the indicators [(A, B, C, D), (A, B, C, D, E, F)] is connected to each of the SOVs [(V1-V2, V4-V5), (V1-V6)] to indicate the status of the SOVs [(V1-V2, V4-V5), (V1-V6)]. In another embodiment, the system (300) includes a plurality of pressure sensors [(P1 , P2, P3, P4), (P1 , P2, P3, P4, P5, P6)] wherein each of the pressure sensors [(P1 , P2, P3, P4), (P1 , P2, P3, P4, P5, P6)] is connected to each of the SOVs [(V1-V2, V4-V5), (V1-V6)] to indicate the status of the SOVs [(V1-V2, V4-V5), (V1-V6)]. In still another embodiment, the system (300) includes both the indicators [(A, B, C, D) (A, B, C, D, E, F)] and the pressure sensors [(P1 , P2, P3, P4), (P1 , P2, P3, P4, P5, P6)].

[0060] Referring to an embodiment of Figure 2, the system (300) includes a bypass valve (B1) for providing an alternative bypass path to the fluid from the fluid inlet (102) to the fluid outlet (104). This facilitates easy replacement of single or multiple SOVs [(V1 -V2, V4-V5), (V1-V6)] and shuttle valves (S1-S9, ST-S6’). The bypass valve (B1) may be connected to the fluid outlet (104) via another shuttle valve (S11). The system (300) may also include an indicator (G) and/or a pressure sensor (PB1) associated with the bypass valve (B1) for indicating its status.

[0061] Figure 5 depicts an embodiment of the manifold system (300) with six SOVs (V1 -V6). In this embodiment, the manifold assembly (10) includes a plurality of third shuttle valves (S1 ’-S3’). Each of the third shuttle valves (S1 ’-S3’) is operatively coupled to one first shuttle valve (S4-S6) and one redundant shuttle valve (S4’-S6’) at its input ports to facilitate the flow of the fluid from each of the first set of SOVs (V1-V3) to each of the second set of SOVs (V4-V6), for improving shuttle valve redundancy and system availability. Thus, the system (300) includes six SOVs (V1-V6) and six first isolating valves (11-16) connected to the fluid outlet (104) through the twelve shuttle valves (S4-S9, ST-S6’). The outlet of the SOV (V1) is connected to the input ports of the shuttle valves (S4, S4’, S5, S6’). The outlet of the SOV (V2) is connected to the input ports of the shuttle valves (S4, S5, S5’, S6). The outlet of the SOV (V3) is connected to the input ports of the shuttle valves (S4’, S5’, S6, S6’). The output ports of the shuttle valves (S4, S4’) are connected to the input ports of the shuttle valve (S1 ’). The output ports of the shuttle valves (S5, S5’) are connected to the input ports of the shuttle valve (S2’). The output ports of the shuttle valves (S6, S6’) are connected to the input ports of the shuttle valve (S3’). The output port of the shuttle valve (S1 ’) is connected to the inlet of the SOV (V4) through the first isolating valve (I4). The output port of the shuttle valve (S2’) is connected to the inlet of the SOV (V5) through the first isolating

valve (I5). The output port of the shuttle valve (S3’) is connected to the inlet of the SOV (V6) through the first isolating valve (I6). The outlet of the SOV (V4) is connected to the input port of the shuttle valve (S7). The outlet of the SOV (V5) is connected to the input port of the shuttle valve (S7, S8). The outlet of the SOV (V6) is connected to the input port of the shuttle valve (S8). The output ports of the shuttle valves (S7, S8) are connected to the input ports of the shuttle valve (S9), which is connected to the fluid outlet (104).

[0062] The following truth table (table 3) shows output of the system (500) for various operating states of the SOVs (V1-V6).

Table 3

[0063] It can be seen from the truth table above that the fluid is received at the fluid outlet (104) even when only the SOVs (V1 and V6) or SOVs (V3 and V4) are in energized state and rest of the SOVs (V2-V5) or (V1 , V2, V5, V6) are in de-energized state.

[0064] The system (300) as shown in Figure 5 provides shuttle valve redundancy and facilitates individual isolation of both the SOVs (V1-V6) and the shuttle valves (S1-S8).

Further, the inclusion of additional shuttle values (S1 S6’) improves the availability of the system and also minimizes probability of failure/complete shutdown of the system.

[0065] In an embodiment, the SOVs [(V1-V2, V4-V5), (V1-V6)] are 3/2 poppet valves and the isolating valves [(11-12, 14-15), (11-16)] are 3/2 valves.

[0066] In an embodiment, the system (300) includes at least one exhaust (108) to vent out the exhaust residue into the atmosphere.

[0067] Advantageously, the SOVs [(V1-V2, V4-V5), (V1-V6)] and the first isolating valves [(11-12, 14-15), (11-16)] are merged together to eliminate the need of two different mounting arrangements.

[0068] The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.

TECHNICAL ADVANCEMENTS

[0069] The present disclosure described herein above has several technical advantages including, but not limited to, the realization of a manifold system for fluid delivery that:

• maintains system availability at all the times;

• facilitates easy maintenance and repair of solenoid operated valves;

• is reliable;

• facilitates individual isolation of solenoid operated valves;

• improves the degree of safety and availability of an industrial process;

• facilitates easy maintenance of a single valve without disturbing the entire system;

• facilitates easy maintenance of multiple faulty valves without having to shut down the entire process;

• facilitates replacement of multiple faulty valves without disturbing the outlet flow;

• facilitates easy replacement of shuttle valves; and

• minimizes probability of total shutdown.

[0070] The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

[0071] The foregoing description of the specific embodiments so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

[0072] The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.

[0073] While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.
CLAIMS:

1 . A manifold system (300) for fluid delivery, said manifold system (300) comprising a plurality of manifold assemblies (10), each of said manifold assemblies (10) comprising:

i. a first set of Solenoid Operated Valves (SOVs) [(V1-V2), (V1-V3)] positioned near a fluid inlet (102), said first set of SOVs [(V1-V2), (V1-V3)] comprising at least two SOVs [(V1-V2), (V1 -V3)] arranged in parallel;

ii. a second set of SOVs [(V4-V5), (V4-V6)] connected in series with said first set of SOVs [(V1-V2), (V1 -V3)], said second set of SOVs [(V4-V5), (V4-V6)] positioned near a fluid outlet (104) and comprising at least two SOVs [(V4-V5), (V4-V6)] arranged in parallel;

iii. a plurality of first isolating valves [(11-12, 14-15), (11 -16)], each of said first isolating valves [(11-12, 14-15), (11-16)] coupled to each of said SOVs [(V1-V2, V4-V5), (V1-V6)], each first isolating valve [(11-12, 14-15), (11 -16)] adapted to facilitate hot swapping of associated SOV [(V1-V2, V4-V5), (V1 -V6)];

iv. at least one first shuttle valve [(S1 ), (S4-S6)] connected between said first set of SOVs [(V1-V2), (V1 -V3)] and said second set of SOVs [(V4-V5), (V4-V6)]; and v. at least one redundant shuttle valve [(S3), (S4’-S6’)], characterized in that, said redundant shuttle valve [(S3), (S4’-S6’)] is configured to provide redundancy to said first shuttle valve [(S1 ), (S4-S6)] in a way that the flow of a fluid is facilitated from each of said first set of SOVs [(V1 -V2), (V1-V3)] to each of said second set of SOVs [(V4-V5), (V4-V6)], thereby improving the system availability.

2. The system as claimed in claim 1 , wherein said system (300) includes a bypass valve (B1 ) for providing an alternative bypass path to the fluid from said fluid inlet (102) to said fluid outlet (104) to facilitate maintenance of said manifold assembly (10).

3. The system as claimed in any preceding claim, wherein said plurality of manifold assemblies (10) are connected in parallel to improve the system reliability.

4. The system as claimed in any preceding claim, wherein said plurality of manifold assemblies (10) are connected in parallel to improve the system reliability, and each of said manifold assemblies (10) is connected to said fluid outlet (104) via a common outlet shuttle valve (S10).

5. The system as claimed in any preceding claim, wherein said plurality of manifold assemblies (10) are connected in parallel to improve the system reliability and each

of said manifold assemblies (10) is connected to said fluid inlet (102) via a second isolating valve (M1 , M2).

6. The system as claimed in any preceding claim, wherein said plurality of manifold assemblies (10) are connected in parallel to improve the system reliability, and each of said manifold assemblies (10) is connected to said fluid inlet (102) via a second isolating valve (M1 , M2), wherein said second isolating valves (M1 , M2) are Manually Operated Valves (MOVs).

7. The system as claimed in any preceding claim, wherein said first isolating valves are [(11-12, 14-15) (11-16)] are Manually Operated Valves (MOVs).

8. The system as claimed in any preceding claim, which includes a plurality of indicators [(A, B, C, D), (A, B, C, D, E, F)], wherein each of said indicators [(A, B, C, D), (A,

B, C, D, E, F)] is connected to each of said SOVs [(V1-V2, V4-V5), (V1-V6)] to indicate the status of said SOVs [(V1-V2, V4-V5), (V1-V6)].

9. The system as claimed in any preceding claim, which includes a plurality of pressure sensors [(P1 , P2, P3, P4), (P1 , P2, P3, P4, P5, P6)], wherein each of said pressure sensors [(P1 , P2, P3, P4), (P1 , P2, P3, P4, P5, P6)] is connected to each of said SOVs [(V1-V2, V4-V5), (V1-V6)] to indicate the status of said SOVs [(V1-V2, V4-V5), (V1-V6)].

10. The system as claimed in any preceding claim, wherein said system (100) includes at least one second shuttle valve [(S2), (S7-S9)] connecting said second set of SOVs [(V4-V5), (V4-V6)] to said fluid outlet (104).

11 . The system as claimed in any preceding claim, wherein each of said manifold assemblies (10) includes a plurality of third shuttle valves (ST-S3’), each of said third shuttle valves (S1 ’-S3’) operatively coupled to one first shuttle valve (S4-S6) and one redundant shuttle valve (S4’-S6’) at its input ports to facilitate the flow of the fluid from each of said first set of SOVs (V1-V3) to each of said second set of SOVs (V4-V6), for improving shuttle valve redundancy and system availability.

12. The system as claimed in any preceding claim, wherein each of said SOVs [(V1-V2, V4-V5), (V1-V6)] is a 3/2 poppet valve.

13. The system as claimed in any preceding claim, wherein each of said isolating valves [(11-12, 14-15), (11-16)] is a 3/2 valve.

14. The system as claimed in any preceding claim, wherein said system (300) includes at least one exhaust (108) to vent out the exhaust residue into the atmosphere.

15. The system as claimed in any preceding claim, wherein said fluid comprises at least one of air, neutral gas, liquid, and natural gas.