Fitting with a sealing sleeve, and associated assemblies and methods
An example fitting includes: a shell; a nipple disposed within the shell such that an internal annular space is formed between the shell and the nipple; and a sealing sleeve disposed in the internal annular space, wherein the sealing sleeve has a generally cylindrical shape and is made of a flexible material, wherein an annular space is formed between the sealing sleeve and the nipple to receive a hose in the annular space, allowing the sealing sleeve to form a sealed connection with the hose upon crimping the shell onto the hose.
1 . A fitting comprising:
a shell having at least one internal groove;
a nipple disposed within the shell such that an internal annular space is formed between the shell and the nipple; and
a sealing sleeve disposed in the internal annular space, wherein the sealing sleeve has a generally cylindrical shape and is made of a flexible material, wherein the sealing sleeve has at least one ridge such that as the sealing sleeve is inserted into the shell, the at least one ridge interacts with the at least one internal groove to retain the sealing sleeve within the shell, wherein an annular space is formed between the sealing sleeve and the nipple to receive a hose in the annular space, allowing the sealing sleeve to form a sealed connection with the hose upon crimping the shell onto the hose.
2 . The fitting of claim 1 , wherein the shell has at least one internal groove of the shell is ramped to facilitate traversal of the sealing sleeve as the sealing sleeve interacts with an interior surface of the shell during insertion.
3 . The fitting of claim 1 , wherein the sealing sleeve has a slit that allows the sealing sleeve to be radially compressed and expanded to facilitate insertion into the shell.
4 . The fitting of claim 1 , wherein the sealing sleeve is made of an elastomeric material.
5 . The fitting of claim 4 , wherein the elastomeric material is a fluoropolymer, a vulcanized elastomer, or a thermoplastic material.
6 . The fitting of claim 1 , wherein the sealing sleeve has a particular color that indicates a type of fluid to be transferred through the hose.
7 . The fitting of claim 1 , further comprising:
an end connector configured to couple the fitting to another component.
8 . An assembly comprising:
a fitting comprising: (i) a shell having at least one internal groove, (ii) a nipple disposed within the shell such that an internal annular space is formed between the shell and the nipple, and (iii) a sealing sleeve disposed in the internal annular space, wherein the sealing sleeve has a generally cylindrical shape and is made of a flexible material, wherein the sealing sleeve has at least one ridge such that as the sealing sleeve is inserted into the shell, the at least one ridge interacts with the at least one internal groove to retain the sealing sleeve within the shell, wherein an annular space is formed between the sealing sleeve and the nipple; and
a hose inserted into the annular space, allowing the sealing sleeve to form a sealed connection with the hose upon crimping the shell onto the hose.
9 . The assembly of claim 8 , wherein the hose has an inner tube and a reinforcement layer surrounding the inner tube, and wherein the sealing sleeve is squeezed against the reinforcement layer, forming the sealed connection, upon crimping the shell of the fitting.
10 . The assembly of claim 8 , wherein the shell has at least one internal groove of the shell is ramped to facilitate traversal of the sealing sleeve as the sealing sleeve interacts with an interior surface of the shell during insertion.
11 . The assembly of claim 8 , wherein the sealing sleeve has a slit that allows the sealing sleeve to be radially compressed and expanded to facilitate insertion into the shell.
12 . The assembly of claim 8 , wherein the sealing sleeve is made of an elastomeric material.
13 . The assembly of claim 12 , wherein the elastomeric material is a fluoropolymer, a vulcanized elastomer, or a thermoplastic material.
14 . The assembly of claim 8 , wherein the sealing sleeve has a particular color that indicates a type of fluid to be transferred through the hose.
15 . The assembly of claim 8 , wherein the fitting further comprises:
an end connector configured to couple the fitting to another component.
16 . A method comprising:
providing a fitting comprising: (i) a shell, and (ii) a nipple disposed within the shell such that an internal annular space is formed between the shell and the nipple, wherein the shell has at least one internal groove;
inserting a sealing sleeve in the internal annular space or mounting the sealing sleeve to a hose, wherein the sealing sleeve has a generally cylindrical shape and is made of a flexible material, wherein the sealing sleeve has at least one ridge, wherein inserting the sealing sleeve into the internal annular space comprises causing the at least one ridge to interact with the at least one internal groove to retain the sealing sleeve within the shell, wherein an annular space is formed between the sealing sleeve and the nipple;
inserting the hose into the annular space such that the sealing sleeve is radially interposed between the hose and the shell; and
crimping the shell onto the hose, thereby allowing the sealing sleeve to form a sealed connection with the hose.
17 . The method of claim 16 , wherein the at least one internal groove of the shell is ramped to facilitate traversal of the sealing sleeve as the sealing sleeve interacts with an interior surface of the shell during insertion.
18 . The method of claim 16 , wherein the sealing sleeve has a slit, and wherein inserting the sealing sleeve into the shell comprises:
radially compressing, due to the slit, the sealing sleeve to facilitate insertion into the shell.
19 . The method of claim 16 , wherein the sealing sleeve is made of an elastomeric material comprising a fluoropolymer, a vulcanized elastomer, or a thermoplastic material.
20 . The method of claim 16 , wherein the fitting has an end connector, and wherein the method further comprises:
coupling the fitting to another component using the end connector.