Provided herein is a liner that can be loosely inserted in process pipe to form a lined pipe and to decrease the rate of heat transfer between process fluids flowing through the liner and the process pipe. The liner provided herein can reduce applied thermal loading on the outer pipe resulting from, for example, turbulent mixing between fluids having different temperatures (with or without stratification), circumferential thermal gradients, and/or longitudinal thermal gradients. An annulus between the process pipe and liner can be at least partially filled by process fluids, thereby creating a thermal buffer to further decrease the rate of heat transfer between the fluids and the process pipe.

A pipe sleeve includes an elongated cylindrical body extending from a base to a top; an anchor rigidly attached to a first position of the elongated cylindrical body, the anchor having an attachment device to secure to a structure; and extendable legs secured to the elongated cylindrical body, the legs each having a foot; each of the extendable legs can be extended a distance to keep a top surface of the elongated cylindrical body level.

A pipe joint having a compound locking ring is disclosed herein. The pipe joint bell has a a segment cavity into which ring segments may be inserted through a slot on the face or outer surface of the bell end of a first pipe. The locking ring has multiple ring segments, each segment having an arcuate outer surface. The outer surface may be a compound surface of multiple arcs.

Problem to be solved is to fasten a flexible hose to a nipple so as to prevent the flexible hose from slipping off by coupling a plurality of belt-like bodies divided in the same shape. A hose joint sleeve of the present invention includes a sleeve main body that is deformable in a radial direction and is provided to hold a flexible hose between the sleeve main body and a nipple of a hose joint, the hose joint sleeve being configured to press and tighten the flexible hose toward an outer peripheral surface of the nipple with radial contraction and deformation of the sleeve main body.

Provided is a bending angle calculation method capable of saving a worker time and effort. The bending angle calculation method includes: an image capturing step (S1) of capturing an image of a pipe in which a first pipe and a second pipe are joined together by a joint; a derivation step (S3) of deriving, from the image, a laying direction straight line corresponding to a laying direction of the pipe; and a calculation step (S4) of calculating, as a bending angle at the joint, a crossing angle between a laying direction straight line of the first pipe and a laying direction straight line of the second pipe.

A pipe coupling includes a sleeve and a clamping ring. The sleeve includes a flange at least one end. The clamping ring is mounted to the flange. The clamping ring carries a seal and includes two spaced apart bolt engagement portions. The clamping ring further includes two separate clamping ring portions that are removably connected together at a coupling portion of each respective separate clamping ring portion so that each clamping ring portion is separable from the other one. The two separate clamping ring portions function as a unitary ring when the coupling portions are brought into abutting contact such that the coupling portions are fixed relative to each other.

A cap configured for engagement with a coupling, the cap defining an inner end and an outer end, the cap defining an axis extending from the inner end to the outer end, the cap defining a raised lip, a sealing surface, and a groove, the raised lip axially positioned at the inner end, the sealing surface positioned between the raised lip and the groove.

A custom connector kit for connecting 2 flexible ducts together includes a connector device. The connector device is configured to connect two flexible ducts together. The connector device includes a first male connection end and a second male connection end. The first male connection end is at a first distal end of the connector device. The first male connection end is configured to be connected to a first flexible duct. The first male connection end includes a first diameter sized to fit securely inside of the first flexible duct. The second male connection end is at a second distal end of the connector device. The second male connection end is configured to be connected to a second flexible duct. The second male connection end includes a second diameter sized to fit securely inside of the second flexible duct.

A corner fitting includes a sleeve body having a hollow inner space and configured to coaxially fit over a pipe member of a predetermined size. An edge of the sleeve body at a second distal end has a corner cut portion, a protruding tab, and two recesses, the protruding tab being diametrically opposed to the corner cut portion in the radial direction of the sleeve body, and the recesses being diametrically opposed to each other in the radial direction of the sleeve body. The corner cut portion is configured and shaped such that the sleeve body fits together with an identical sleeve body on the pipe member of the predetermined size with the corner cut portions of the two sleeve bodies contacting each other and with the pipe being nested between the protruding tabs of the second distal ends of the two sleeve bodies.

A corner fitting includes a sleeve body having a hollow inner space and configured to coaxially fit over a pipe member of a predetermined size. An edge of the sleeve body at a second distal end has a corner cut portion, a protruding tab, and two recesses, the protruding tab being diametrically opposed to the corner cut portion in the radial direction of the sleeve body, and the recesses being diametrically opposed to each other in the radial direction of the sleeve body. The corner cut portion is configured and shaped such that the sleeve body fits together with an identical sleeve body on the pipe member of the predetermined size with the corner cut portions of the two sleeve bodies contacting each other and with the pipe being nested between the protruding tabs of the second distal ends of the two sleeve bodies.