In some implementations, a flowline connector assembly includes a first flowline member having a first cylindrical passageway, and a first stop extending radially outward from an outer surface of the first flowline member, and a second flowline member having an annular configuration defining a second cylindrical passageway. The flowline connector assembly may include a pin, having an annular configuration, configured to be inserted into the first cylindrical passageway and the second cylindrical passageway. The flowline connector assembly may include a collar where an inner surface of the collar at a first end is configured to contact a first side of the first stop, and the inner surface of the collar at a second end is configured to contact a first side of a second stop to connect the first flowline member with the second flowline member, where the second stop extends radially from the pin or the second flowline member.

In some implementations, a flowline connector assembly includes a first flowline member having a first cylindrical passageway, and a first stop extending radially outward from an outer surface of the first flowline member, and a second flowline member having an annular configuration defining a second cylindrical passageway. The flowline connector assembly may include a pin, having an annular configuration, configured to be inserted into the first cylindrical passageway and the second cylindrical passageway. The flowline connector assembly may include a collar where an inner surface of the collar at a first end is configured to contact a first side of the first stop, and the inner surface of the collar at a second end is configured to contact a first side of a second stop to connect the first flowline member with the second flowline member, where the second stop extends radially from the pin or the second flowline member.

A three-way clamp includes a first clamp shell and a second clamp shell capable of being connected to or detached from each other. Each of the first clamp shell and the second clamp shell includes three engaging portions. The engaging portion includes an accommodating cavity. The two clamp shells are respectively provided with an engaging claw and an engaging groove. A connector prefabricated component including the clamp includes a connecting pipe fixed in the clamp body, wherein the accommodating cavity is provided with a sealing component for sleeving pipe opening. During construction, a straight pipe to be connected is inserted into the sealing component. Then the clamp body is tightened, and the sealing component tightly presses on a pipe body of the straight pipe to achieve sealing.

A three-way clamp includes a first clamp shell and a second clamp shell capable of being connected to or detached from each other. Each of the first clamp shell and the second clamp shell includes three engaging portions. The engaging portion includes an accommodating cavity. The two clamp shells are respectively provided with an engaging claw and an engaging groove. A connector prefabricated component including the clamp includes a connecting pipe fixed in the clamp body, wherein the accommodating cavity is provided with a sealing component for sleeving pipe opening. During construction, a straight pipe to be connected is inserted into the sealing component. Then the clamp body is tightened, and the sealing component tightly presses on a pipe body of the straight pipe to achieve sealing.

A method of installing a 3-piece pipe coupling to connect a first pipe element to a second pipe element includes the steps of bringing the 3-piece pipe coupling into engagement with a first connection groove located proximate a first pipe element end of the first pipe element and with a second connection groove located proximate a second pipe element end of the second pipe element, the 3-piece pipe coupling comprising three pieces; and tightening the 3-piece pipe coupling about the first and second pipe element ends with a fastener extending through a first fastener pad and through a second fastener pad formed at respective distal ends of two pieces of the three pieces comprising the 3-piece pipe coupling.

A method of installing a 3-piece pipe coupling to connect a first pipe element to a second pipe element includes the steps of bringing the 3-piece pipe coupling into engagement with a first connection groove located proximate a first pipe element end of the first pipe element and with a second connection groove located proximate a second pipe element end of the second pipe element, the 3-piece pipe coupling comprising three pieces; and tightening the 3-piece pipe coupling about the first and second pipe element ends with a fastener extending through a first fastener pad and through a second fastener pad formed at respective distal ends of two pieces of the three pieces comprising the 3-piece pipe coupling.

A coupler for connecting a first fluid conveying member and a second fluid conveying member includes a first coupler half, a second coupler half, and a conductive gasket. In embodiments, at least one of the first coupler half and the second coupler half include an annular groove configured to receive at least a portion of the conductive gasket; the conductive gasket comprises non-metallic material, the first coupler half and the second coupler half are configured to connect and circumferentially surround portions of said first and second fluid conveying members, and the conductive gasket provides a portion of a conductivity path from a first end of the coupler to a second end of the coupler, and may be part of a conductivity path from a first fluid conveying member to a second fluid conveying member. Embodiments of a non-metallic conductive gasket and methods of making a coupler assembly are also disclosed.

A clamp assembly comprising a plurality of clamps each comprising two clamp arms pivotal relative to each other about a hinge point, and a common connector part joining two or more of said clamps to each other at their hinge points.

An exhaust pipe forming a flow path of exhaust gas of a vehicle includes a first end including a first opening, a first flange portion formed on the first end, and a cover member. The first flange portion is configured to be fastened to a second flange portion formed on a second end of another exhaust pipe. The cover member includes a held portion and an inner circumferential portion. The held portion is held between the first end and the second end when the first flange portion and the second flange portion are fastened together. The inner circumferential portion covers a region adjacent to the first opening in the inner circumferential surface of the exhaust pipe.

A multi-petaled oblique-plane hoop and a pipe connector are described. The hoop is divided into two groups, and the hoop petals in each group are connected by means of pins, and the pins are parallel to a connecting pipe shaft. The groups are connected by using bolts, and the bolts are vertical to a pipe shaft. Each hoop petal is in a shape of a partial ring stud, in which an arc-shaped groove is formed. The upper surface and the lower surface of the groove are symmetrical partial inner cone surfaces, and the hoop petals are connected to form a clamping chain.