TECHNICAL FIELD

The present disclosure relates to valves and more particularly relates to normally closed valve assembly and valve system.

BACKGROUND

There are various types of valves that are widely used to regulate the supply of fluid from a conduit. The valves can be actuated mechanically or pneumatically depending upon the actuation member that is employed with the valve. The actuating members are adapted to actuate the position of a sleeve within the valve that either enables the sleeve to obstruct the passage through the valve or to allow the passage through the valve.

Conventional pinch valves generally include a sleeve that gets actuated by the actuating member such that the sleeve either allows passage of fluid through the valve assembly or obstructs the passage of fluid through the valve assembly. The pinch valves require a continuous requirement of a biasing member that causes pinching of the sleeve of the valve. In case, the biasing member is a mechanical means then the sleeve gets pinched by continuously applying mechanical pressure to the lateral surface of the sleeve. Such mechanical pressure can be sustained by a spring, which needs to be deployed within the valve casing of a valve assembly. In case, the biasing member is a pneumatic means then the sleeve gets pinched by continuously subjecting the sleeve under a predetermined pressure that hold the sleeve in pinched state. In case there is no external pressure to keep the sleeve pinched, i.e., when the valve system is switched off, then the sleeve remains in open position, which causes continuous leakage through the valve and also continuous spreading of foul smell from the valve. Thus, there is a need for a technical solution that overcomes the aforementioned problems of a conventional pinch valves.

SUMMARY

In view of the foregoing, a valve assembly is disclosed. The valve assembly includes a valve casing and inlet and outlet flanges such that the inlet and outlet flanges are provided with inlet and outlet extensions having first and second bumps respectively. The valve assembly further includes a sleeve that extends from the inlet flange to the outlet flange, and adapted to exhibit a first position and a second position such that, the sleeve, in the first position obstructs passage of a fluid through the valve assembly and, the sleeve, in the second position allows passage of the fluid through the valve assembly. The first and second bumps are adapted to support the sleeve tightly in position within the valve casing and by the inlet and outlet flanges when the sleeve switches from the first position to the second position and from the second position to the first position.

In some embodiments, the valve casing includes an opening such that the opening is adapted to create a vacuum in the valve casing by way of a pneumatic source to enable switching of the sleeve from the first position to the second position.

In some embodiments, the sleeve exhibits the first position, when the pneumatic source supplies pressure to the valve casing.

In some embodiments, the valve casing further includes first and second flange caps that are adapted to grip a first end and a second end of the sleeve such that the first flange cap is disposed at one side of the valve casing to adjoin the inlet flange and the second flange cap is disposed at other side of the valve casing to adjoin the outlet flange. In some embodiments, the valve assembly further includes a first O-ring positioned at the inlet flange and a second O-ring positioned at the outlet flange such that the first and second O-rings are adapted to facilitate a sealed coupling of the inlet and outlet flanges with a tube flange of an external tubing.

In an aspect, a valve system is disclosed. The valve system includes a valve assembly having a valve casing and inlet and outlet flanges such that the inlet and outlet flanges are provided with inlet and outlet extensions having first and second bumps, respectively. The valve assembly further includes a sleeve that extends from the inlet flange to the outlet flange, and adapted to exhibit a first position and a second position such that, the sleeve, in the first position obstructs passage of a fluid through the valve assembly and, the sleeve, in the second position allows passage of the fluid through the valve assembly. The first and second bumps are adapted to support the sleeve tightly in position within the valve casing and by the inlet and outlet flanges when the sleeve switches from the first position to the second position, and from the second position to the first position. The valve system further includes a pneumatic source that is operatively coupled to the valve casing, and adapted to enable the sleeve to switch from the first position to the second position, upon creating vacuum in the valve casing.

BRIEF DESCRIPTION OF DRAWINGS

The above and still further features and advantages of embodiments of the present invention becomes apparent upon consideration of the following detailed description of embodiments thereof, especially when taken in conjunction with the accompanying drawings, and wherein:

FIG. 1A illustrates a front sectional view of a valve system, according to an embodiment herein;

FIG. IB illustrates a side view of the valve system, according to an embodiment herein; FIG. 2 illustrates a perspective view of the sleeve, according to an embodiment herein;

FIG 3A illustrates a front sectional view of the valve system such that a valve assembly exhibits partially open position, according to an embodiment herein;

FIG 3B illustrates a side view of the valve system such that the valve assembly exhibits partially open position, according to an embodiment herein;

FIG 4A illustrates a front sectional view of the valve system such that the valve assembly exhibits completely open position, according to an embodiment herein; and

FIG 4B illustrates a side view of the valve system in completely open position of the valve assembly, according to an embodiment herein;

FIG. 5A illustrates a perspective exploded view of first and second O-rings of the valve assembly; and

FIG. 5B illustrates a perspective view of the first and second O-rings installed into the inlet and outlet flanges of the valve assembly.

To facilitate understanding, like reference numerals have been used, where possible, to designate like elements common to the figures.

DETAILED DESCRIPTION OF THE DRAWINGS

V arious embodiment of the present invention provides a valve system having a valve assembly. The following description provides specific details of certain embodiments of the invention illustrated in the drawings to provide a thorough understanding of those embodiments. It should be recognized, however, that the present invention can be reflected in additional embodiments and the invention may be practiced without some of the details in the following description.

The various embodiments including the example embodiments are now described more fully with reference to the accompanying drawings, in which the various embodiments of the invention are shown. The invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure is thorough and complete, and fully conveys the scope of the invention to those skilled in the art. In the drawings, the sizes of components may be exaggerated for clarity.

It is understood that when an element or layer is referred to as being “on,” “connected to,” or “coupled to” another element or layer, it can be directly on, connected to, or coupled to the other element or layer or intervening elements or layers that may be present. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

Spatially relative terms, such as “top,” “bottom,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It is to be understood that the spatially relative terms are intended to encompass different orientations of the structure in use or operation in addition to the orientation depicted in the figures.

Embodiments described herein refer to plan views and/or cross-sectional views by way of ideal schematic views. Accordingly, the views may be modified depending on simplistic assembling or manufacturing technologies and/or tolerances. Therefore, example embodiments are not limited to those shown in the views but include modifications in configurations formed on basis of assembling process. Therefore, regions exemplified in the figures have schematic properties and shapes of regions shown in the figures exemplify specific shapes or regions of elements, and do not limit the various embodiments including the example embodiments.

The subject matter of example embodiments, as disclosed herein, is described with specificity to meet statutory requirements. However, the description itself is not intended to limit the scope of this patent. Rather, the inventors have contemplated that the claimed subject matter might also be embodied in other ways, to include different features or combinations of features similar to the ones described in this document, in conjunction with other technologies. Generally, the various embodiments including the example embodiments relate to a valve assembly and a valve system.

The term “pinching effect” as used herein the context of the present disclosure refers to the state of a sleeve, where the lateral surface of the sleeve stick to each other and thereby obstructing the flow from a valve assembly.

The terms “closed position” and “open position” as used herein the context of the present disclosure refers to the state of the sleeve, where the sleeve allows passage of fluid from the valve assembly and where the sleeve obstructs passage of fluid from the valve assembly, respectively.

The term “operative state” as used herein the context of the present disclosure refers to the state, when various components of the valve system are powered, which results in generation of high pressure across cross-section of the sleeve.

The term “non-operative state” as used herein the context of the present disclosure refers to the state, when various components of the valve system as switched off, which results in removal of pressure across cross-section of the sleeve.

As mentioned there remains a need for providing a valve assembly and valve system that is capable of exhibiting a normally closed position, when in normal position that is there is no mechanical/pneumatic/hydraulic force acting on the valve assembly. Accordingly, the present disclosure provides a valve system having a valve assembly.

FIG. 1A illustrates a front sectional view of a valve system (100). The valve system (100) includes a valve assembly (101) and a pneumatic source (120), according to an embodiment herein. The valve assembly (101) may be adapted to exhibit a normally closed position such that in the normally closed position the valve assembly (101) obstructs passage of a fluid passing through the valve assembly (101). The valve casing (102) includes an opening (110) and first and second flange caps (112, 114). The inlet flange (104) includes an inlet extension (104A) and a first bump (104B). The outlet flange (106) includes an outlet extension (106A) and a second bump (106B).

In some embodiments, the sleeve (108) may be made up of a material such as, but not limited to, a rubber material, a silicon material, and the like. Aspects of the present disclosure are intended to include and/or otherwise cover any type of material for the sleeve (108), including known, related, and later developed materials.

In some embodiments, the valve casing (102) may be made up of stainless steel. Aspects of the present disclosure are intended to include and/or otherwise cover any type of material for the valve casing (102), including known, related, and later developed materials.

The valve casing (102) of the valve assembly (101) may be a closed shaped air-tight housing. The sleeve (108) may be disposed within the valve casing (102) such that the sleeve (108) may be adapted to extend from the inlet flange (104) to the outlet flange (106). In an operative state of the valve system (100), the sleeve (108) may be adapted to switch from a first position (115) to a second position (116) within the valve casing (102), when the pneumatic source (120) creates vacuum in the valve casing (102) through the opening (110) and the sleeve (108) may be adapted to switch from the second position (116) to the first position (115), when the pneumatic source (120) supplies pressure in the valve casing (102). In a non-operative state of the valve system (100), the sleeve (108) may be adapted to exhibit the first position (115) without requirement of pressure from the pneumatic source (120). The inlet flange (104) may be disposed at a first side of the valve casing (102) and the outlet flange (106) may be disposed at a second side of the valve casing (102) which is opposite to the first side of the valve casing (102). The first flange cap (112) may be disposed at the first side of the valve casing (102) such that the first flange cap (112) adjoins the inlet flange (104). The second flange cap (114) may be disposed at the second side of the valve casing (102) such that the second flange cap (114) adjoins the outlet flange (104). The first flange cap (112) may be adapted to rest on a first end (108A) of the sleeve (108) such that the first end (108A) of the sleeve (108) lie between the first flange cap (112) and the inlet extension (104A) of the inlet flange (104). The second flange cap (114) may be adapted to rest on a second end (108B) of the sleeve (108) such that the second end (108B) of the sleeve (108) lie between the second flange cap (114) and the outlet extension (106A) of the outlet flange (106). The first and second flange caps (112, 114) may therefore be adapted to grip the first end (108A) and the second end (108B) of the sleeve (108). The first bump (104B) may be featured on the inlet extension (104 A) of the inlet flange (104) such that the first bump (104B) is adapted to support the first end (108A) of the sleeve (108) tightly in position within the valve casing (102). The second bump (106B) may be featured on the outlet extension (106A) of the outlet flange (106) such that the second bump (106B) is adapted to support the second end (108B) of the sleeve (108) tightly in position within the valve casing (102). The opening (110) may be provided at the peripheral surface of the valve casing (102) such that the opening (110) allows access to the sleeve (108) that is disposed within the valve casing (102). In the operative state of the valve system (100), the opening (110) may be adapted to facilitate in creation of a vacuum in the valve casing (102) by way of the pneumatic source (120) that is operatively coupled to the valve casing (102) such that upon creation of the vacuum in the valve casing (102), the sleeve (108) may be adapted to exhibit the second position (116), where the sleeve (108) allows passage of fluid passing through the valve assembly (101). Further, in the operative state of the valve system (100), the pneumatic source (120) may be configured to supply pressure to the valve casing (102), when the valve system (100) is in operative state, to facilitate switching the sleeve (108) from the second position (116) to the first position (115), where the sleeve (108) obstructs passage of fluid from passing through the valve assembly (101). In the non-operative state of the valve system (100), the sleeve (108) may be adapted to exhibit the first position (115) without requiring the pressure supply from the pneumatic source (120). In some embodiments, the valve casing (102) may exhibit a squished closed shape (oval shape) as can be clearly seen though the FIG. IB. The valve casing (102) may be adapted to enclose the sleeve (108) such that the sleeve (108) is held tightly by the inlet flange (104) and by the outlet flange (106).

In some embodiments, the valve casing (102) may exhibit any kind of closed shape that is adapted to enclose the sleeve (108) such that the sleeve (108) is held tightly by the inlet flange (104) and by the outlet flange (106).

In some embodiments, the valve casing (102) may exhibit a shape that facilitates to amount to minimize the internal volume of the valve casing (102) to reduce the air volumes within the valve casing (102) that enables swift switching of the sleeve (108) within the valve casing (102).

In some embodiments, the valve casing (102) may exhibit a shape that avoids the sleeve (108) to stuck against inner walls of the valve casing (102) to avoid rupturing of the sleeve (108) due to wear and tear of the sleeve (108).

In some embodiments, the valve casing (102) acts as a protective covering for the sleeve (108) and provide sufficient space to the sleeve (108) to enable switching of the sleeve (108) from the first position (115) to the second position (116), when the pneumatic source (120) creates the vacuum in the valve casing (102) and from the second position (116) to the first position (115) within the valve casing (102), when the pneumatic source (120) supplies pressure to the valve casing (102) during the operative state of the valve system (100).

In some embodiments, the opening (110) of the valve casing (102) may include internal threads (not shown) that extends along an inner peripheral surface of the opening (110). The pneumatic source (120) may include a protrusion (not shown) with external threads (not shown) that allows coupling of the pneumatic source (120) to the opening (110) of the valve casing (102). In order to couple the pneumatic source (120) to the opening (110), the protrusion of the pneumatic source (120) is screwed into the opening (110) such that the external threads of the protrusion of the pneumatic source (120) meshes with the internal threads of the opening (110).

In some embodiments, the pneumatic source (120) may include but not limited to a vacuum pump, a vacuum generator, a vacuum ejector, a positive displacement pump, a fluid pump and the like. The pneumatic source (120) may be capable of creating vacuum in the valve casing (102) and also to provide pressure to the valve casing (102). Aspects of the present disclosure are intended to include and/or otherwise cover any type of pneumatic source (120) that is capable of creating vacuum in the valve casing (102) and to supply pressure to the valve casing (102), including known, related, and later developed pneumatic sources.

In some embodiments, a thickness (T) (as shown in FIG. IB) of a wall of the valve casing (102) may be in a range from 1.5 milli-meter (1.5 mm) to 2.5 mm.

In some embodiments, an internal diameter (DI) (as shown in FIG. 1A) of the sleeve (108) may be in a range from 45 milli-meter (45 mm) to 55 mm.

In some embodiments, an outer diameter (D2) (as shown in FIG. 1A) of the sleeve (108) may be in a range from 55 mm to 65 mm.

In some embodiments, a length (L) (as shown in FIG. 1A) of the sleeve (108) may be in a range from 140 mm to 150 mm.

In some embodiments, a stretch (SI) (as shown in FIG. 1A) up to which the lateral surfaces of the sleeve (108) get pinched along the length (L) of the sleeve (108) may be in a range from 15 mm to 25 mm.

In some embodiments, a span (S2) (as shown in FIG. IB) up to which the lateral surfaces of the sleeve (108) get pinched along the outer diameter (D2) of the sleeve (108) may be in a range from 85 mm to 95 mm. In some embodiments, a width (W) (as shown in FIG. 1A) of the sleeve (108), when the sleeve (108) is in the first position (115) i.e., when the lateral surfaces of the sleeve (108) sticks or pinches to each other may be in a range from 7 mm to 10 mm.

In some embodiments, the weight of the sleeve (108) may be in a range from 200 grams to 250 grams.

FIG. IB illustrates a side view of the valve system (100). The valve assembly (101) of the valve system (100) as shown in FIG. IB exhibits normally closed position. The sleeve (108) may be adapted to pinch in the normally closed position such that the valve assembly (101) obstructs passage of a fluid passing though the valve assembly (101). In the non-operative state of the valve system (100), the sleeve (108) may be adapted to exhibit the normally closed position, i.e., the first position (115), due to static squish form/property of the sleeve (108) such that the sleeve (108) exhibits the first position (115) without requirement of the pressure from the pneumatic source (120).

Although FIG. 1A and FIG. IB illustrates that the inlet extension (104A) and the outlet extension (106A) include two bumps, respectively (i.e., the first bump (104B) and the second bump (106B), respectively), it will be apparent to a person skilled in the art that the scope of the present disclosure is not limited to it. In various other aspects, the inlet extension (104 A) and the outlet extension (106A), respectively may each include more than one number of bumps without deviating from the scope of the present disclosure. In such a scenario, each bump of the inlet extension (104 A) and the outlet extension (106 A) is adapted to perform one or more operations in a manner similar to the operations/functions of the first bump ( 104B) and the second bump ( 106B) as described above.

Although FIG. 1A and FIG. IB illustrates that the valve casing (102) includes two flange caps (i.e., the first flange cap 112 and the second flange cap 114), it will be apparent to a person skilled in the art that the scope of the present disclosure is not limited to it. In various other aspects, the valve casing (102) may include more than two number of flange caps without deviating from the scope of the present disclosure. In such a scenario, each flange cap of the valve casing (102) is adapted to perform one or more operations in a manner similar to the operations/functions of the first flange cap (112) and the second flange cap (114) as described above.

In operation, the sleeve (108) may be adapted to exhibit the first position (115), where the sleeve (108) obstructs passage of the fluid passing through the valve assembly (101). The first position (115) being the normal position of the sleeve (108) may be indicative of the normal closed position of the valve assembly (101) such that the sleeve (108) in normal position obstructs the passage of fluid from the valve assembly (101). The pneumatic source (120) may be adapted to create vacuum in the valve casing (102) such that the sleeve (108) may be adapted to exhibit the second position (116), where the sleeve (108) allows passage of fluid passing through the valve assembly (101). In the operative state of the valve system (100), the pneumatic source (120) may be adapted to create the vacuum in the valve casing (102), which sucks the lateral surface of the sleeve (108) towards the inner periphery of the valve casing (102) and thereby mitigating pinching effect of the sleeve (108). This separates the pinched lateral surfaces of the sleeve (108) such that the sleeve (108) now allows the fluid to pass through the valve assembly (101). Therefore, the pneumatic source (120) may be adapted to enable switching of the sleeve (108) from the first position (115) of the sleeve (108) to the second position (116) of the sleeve (108) by creation of vacuum from to the valve casing (102) from the opening (110) of the valve casing (102). Once the sleeve (108) gets in the second position (116), the sleeve (108) may be adapted to get back to the first position (115), when the pneumatic source (120) supplies the pressure to the valve casing (102) for a very short period of time during the operative state of the valve system (100). In the non-operative state of the valve system (100), the pneumatic source (120) cuts-off the pressure supply to the valve casing (102) in order to keep the sleeve (108) in the second position (116). The sleeve (108) may exhibit the second position (116) without any requirement of external pressure during the non-operative state of the valve system (100). This eliminates the need of continuous supply of pressure to the valve casing (102) to close the sleeve (108). The first bump (104B) and the second bump (106B) may be adapted to lock the sleeve (108) in position to prevent slippage of the sleeve (108), when the sleeve (108) switches from the first position (115) to the second position (116) and from the second position (116) to the first position (115). The first bump (104B) and the second bump (106B) may therefore ensure no leakage through the sleeve (108), when the sleeve (108) switches from the first position (115) to the second position (116) and vice-versa.

In some embodiments, the first and second bumps (104B, 106B) may be conical halfparts, such that the first bump (104B) of the inlet extension (104A) and the second bump (106B) of the outlet extension (106A) converge inward of the valve casing (102) to lock the sleeve (108) in appropriate position to prevent slippage of the sleeve (108), when the sleeve (108) switches between the first position (115) and the second position (116).

In some embodiments, the first and second flange caps (112, 114) may be fixedly coupled to the inlet and outlet flanges (104, 106) by way of a plurality of fasteners of which first and second fasteners (118A, 118B) (hereinafter individually referred to and designated as “the fastener 118” and collectively referred to and designated as “the fasteners 118”) are shown. The plurality of fasteners (118) may include a screw, a rivet, and the like. Aspects of the present disclosure are intended to include and/or otherwise cover any type of fastener (118), including known, related, and later developed fasteners.

In some exemplary embodiments, the first and second flange caps (112, 114) may be fixedly coupled to the inlet and outlet flanges (104, 106) by way of a plurality of M6 Allen bolts.

In some embodiments, the inlet and outlet flanges (104, 106) exhibit similar structural design and are adapted to provide support for holding the valve casing (102) and the sleeve (108) in an appropriate position, which allows the sleeve (108) to switch between either of the first position (115) and the second position (116).

In some embodiments, the inlet flange (104) may be adapted to couple an inlet pipe to the valve assembly (101) such that the inlet pipe directs waste or slurry to the valve assembly (101).

In some embodiments, the outlet flange (106) may be provided with a spigot (122) that is adapted to enable coupling of the valve assembly (101) with an outlet pipe (not shown) for facilitate discharge of the fluid passing through the valve assembly (101).

In some embodiments, the fluid that is passed through the valve assembly (101) may include but not limited to slurry, liquid waste, gas, water, waste-water or the like.

FIG. 2 illustrates a perspective view of the sleeve (108). The sleeve (108) as shown in FIG. 2 exhibits the first position (115) such that the sleeve (108) is pinched and therefore the sleeve (108) may obstruct passage of fluid from the valve assembly (101).

FIG 3A illustrates a front sectional view of the valve system (100) such that the valve assembly (101) exhibits partially open position. The sleeve (108) of the valve assembly (101) partially opens, when the pneumatic source (120) creates vacuum in the valve casing (102) through the opening (110) for shorter period of time.

Referring to FIG. 3B, a side view of the valve system (100) such that the valve assembly (101) exhibits partially open position. The sleeve (108) of the valve assembly

(101) partially opens, when the pneumatic source (120) creates vacuum in the valve casing through the opening (110). Upon creation of the vacuum to the valve casing

(102) the pinched lateral surfaces start getting separated from each other such that the sleeve (108) partially opens and thereby allowing the fluid to pass through the valve assembly (101). FIG 4A illustrates a front sectional view of the valve system (100) such that the valve assembly (101) exhibits completely open position. The completely open position of the valve assembly (101) may allow the sleeve (108) to exhibit the second position (116), when the pneumatic source (120) continuously creates vacuum in the valve casing (102) through the opening (110) for a predetermined interval of time. Referring to FIG. 4B, a side view of the valve system (100) in completely open position of the valve assembly (101). The completely open position of the valve assembly (101) may allow the sleeve (108) to exhibit the second position (116), when the pneumatic source (120) creates vacuum in the valve casing through the opening (110) for a continued period of time. Upon creating the vacuum in the valve casing (102) the pinched lateral surfaces start getting separated from each other such that the sleeve (108) completely opens and thereby allowing the fluid to pass through the valve assembly (101).

FIG. 5 A illustrates a perspective exploded view of first and second O-rings (109 A, 109B) of the valve assembly (101). The first O-ring (109A) may be disposed at the inlet flange (104) and the second O-ring (109B) may be disposed at the outlet flange (106). The first O-ring (109 A) may be disposed in a groove (not shown) of the inlet flange (104) and the second O-ring (109B) may be disposed in a groove (not shown) of the outlet flange (106).

FIG. 5B illustrates a perspective view the first and second O-rings (109 A, 109B) installed into the inlet and outlet flanges (104, 106) of the valve assembly (101). FIG. 5B shows the first and second rings (109A, 109B) being disposed at the inlet and outlet flanges (104, 106), respectively. The first and second O-rings (109A, 109B) may be adapted to facilitate a sealed coupling of the valve assembly (101) in an external tubing (not shown). For example, the external tubing may include a plurality of tubes (not shown) and a tube flange (not shown). The tube flange may be disposed at an end of each tube of the plurality of tubes. The inlet and outlet flanges (104, 106) of the valve assembly (101) may be adapted to engage with the tube flange of each tube of the plurality of tubes such that the valve assembly (101) may be disposed within the tube flange of one tube of the plurality of tubes and tube flange of other tube of the plurality of tubes. The first O-ring (109 A) may be adapted to facilitate the sealed coupling of the inlet flange (104) and the tube flange of one tube of the plurality of tubes. The second O-ring (109B) may be adapted to facilitate the sealed coupling of the outlet flange (106) and the tube flange of other tube of the plurality of tubes. In some embodiments, the first and second O-rings (109A, 109B) may have an outer diameter that may lie in the range of 45 mm to 55 mm, preferably the outer diameter of the first and second O-rings (109A, 109B) may be 50 mm.

In some embodiments, the first and second O-rings (109A, 109B) may have a thickness that may lie in the range of 2.5 mm to 4 mm, preferably the thickness of the first and second O-rings (109A, 109B) may be 3 mm.

In some embodiments, the material of the first and second O-rings (109A, 109B) may be selected from one of the groups consisting of silicone rubber, nitrile, polytetrafluoroethylene (PTFE), neoprene, ethylene propylene diene monomer (EPDM) rubber, fluorocarbon or the like. Aspects of the present disclosure are intended to include and/or otherwise cover any type of material for the first and second O-rings (109A, 109B) that is capable to facilitate the sealed coupling of the inlet and outlet flanges (104, 106) with the tube flange of the external tubing or hose, including known, related, and later developed materials.

Certain advantages of the valve system (100) and the valve assembly (101) of the present disclosure are listed hereinbelow: -

The valve system (100) and the valve assembly (101) eliminate the continuous requirement of an external force or biasing member in order to close the valve assembly (101).

The valve system (100) and the valve assembly (101) require a smaller number of components therefore simplifying the structure of the valve system (100) and the valve assembly (101). The sleeve (108) remains in normally closed position (statically closed off) even when there is no external pressure or mechanical force available to keep the sleeve (108) in closed position. Normally closed position of the sleeve (108), therefore: eliminates any kind of leakage through the valve assembly (101) and spreading of any odor or foul smell from the valve assembly (101), even when the valve system (100) is shut or switched off.

The sleeve (108) is designed such that the sleeve (108), upon application of a very small pressure or pressure for a very small period of time, gets squished to exhibit the first position (115) as a normal position. This eliminates the continuous supply of pressure or external force to maintain the closed position of the sleeve (108).

The valve system (100) has a compact design, which minimizes the maintenance efforts to carry out maintenance of the valve system (100).

The components of the valve system (100) are prevented to get exposed to dirt, thereby enhancing the life/endurance of the components of the valve system (100).

The valve system (100) of the present disclosure has only one moving part, i.e., the sleeve (108), therefore wear and tear of the valve system (100) gets minimized.

The foregoing discussion of the present disclosure has been presented for purposes of illustration and description. It is not intended to limit the present invention to the form or forms disclosed herein. In the foregoing Detailed Description, for example, various features of the present invention are grouped together in one or more embodiments, configurations, or aspects for the purpose of streamlining the disclosure. The features of the embodiments, configurations, or aspects may be combined in alternate embodiments, configurations, or aspects other than those discussed above. This method of disclosure is not to be interpreted as reflecting an intention the present invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment, configuration, or aspect. Thus, the following claims are hereby incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of the present invention. Moreover, though the description of the present disclosure has included description of one or more embodiments, configurations, or aspects and certain variations and modifications, other variations, combinations, and modifications are within the scope of the present invention, e.g., as may be within the skill and knowledge of those in the art, after understanding the present disclosure. It is intended to obtain rights which include alternative embodiments, configurations, or aspects to the extent permitted, including alternate, interchangeable and/or equivalent structures, functions, ranges or steps to those claimed, whether or not such alternate, interchangeable and/or equivalent structures, functions, ranges or steps are disclosed herein, and without intending to publicly dedicate any patentable subject matter.