A clamp for is provided. The clamp has a first arm and second arm both with a pivot end and a lock end that are hingedly coupled. The lock end of the second arm has a seat and a pair of fingers forming a slot. The first arm and the second arm have a radially inwardly facing channel. A lock has a part that extends through a bore of the first arm and rotatingly engages a shoulder. The lock rotates and positions within the slot. The lock has a part that engages the other part and seats in the lock seat. A tamper collar is coupled to the locking device. A member threads through the slot and engages the tamper collar such that the locking device cannot be removed without disengaging the member.

A vacuum system pipe coupling includes a first coupling member and a second coupling member. The vacuum system pipe coupling has a seal system that is to be positioned to seal between the first and second coupling members and a securing system to releasably secure the first coupling member to the second coupling member. The seal system has an inner seal element and an outer seal element spaced from the inner seal element. The first coupling member is provided with a flow passage configured to conduct a pressurized gas to a space between the inner and outer seal elements to shield the outer seal element from fluid flowing through the pipe coupling in the event of failure of the inner seal element.

A vacuum system pipe coupling includes a first coupling member and a second coupling member. The vacuum system pipe coupling has a seal system that is to be positioned to seal between the first and second coupling members and a securing system to releasably secure the first coupling member to the second coupling member. The seal system has an inner seal element and an outer seal element spaced from the inner seal element. The first coupling member is provided with a flow passage configured to conduct a pressurized gas to a space between the inner and outer seal elements to shield the outer seal element from fluid flowing through the pipe coupling in the event of failure of the inner seal element.

A duct arrangement may comprise a duct extending along a centerline axis, a flange coupled to an end of the duct, and a balking feature coupled to a distal surface of the duct and extending axially towards the flange, wherein the balking feature is configured to align a clamp with the flange.

Slip joint apparatus is provided. The slip joint apparatus (100) includes a first component (4) having a first end (18) and a second component (6) having a second end. The second end of the second component arranged such that it can be brought into overlapping engagement with the first end of the first component in use. An intermediate joining element (108) is provided for helping to join the first and second components together in use. Movement limitation means (20) are provided on or associated with, at or adjacent the first end (18) of the first component (4) for limiting movement of at least part of the intermediate joining element (108) in at least one direction relative to said first component (4) in use.

Slip joint apparatus is provided. The slip joint apparatus (100) includes a first component (4) having a first end (18) and a second component (6) having a second end. The second end of the second component arranged such that it can be brought into overlapping engagement with the first end of the first component in use. An intermediate joining element (108) is provided for helping to join the first and second components together in use. Movement limitation means (20) are provided on or associated with, at or adjacent the first end (18) of the first component (4) for limiting movement of at least part of the intermediate joining element (108) in at least one direction relative to said first component (4) in use.

A joint seal system and method may include a seal and a band. The seal may be positioned between abutting flanges of two adjacent duct sections. A band may be positioned over the two flanges and the flange interface. The joint seal system and method may be configured to mitigate and/or eliminate leakage of pressure, flue gases, condensate, and/or any other fluid, gas, and/or vapor between abutting flanges of duct sections at a flange interface.

A joint seal system and method may include a seal and a band. The seal may be positioned between abutting flanges of two adjacent duct sections. A band may be positioned over the two flanges and the flange interface. The joint seal system and method may be configured to mitigate and/or eliminate leakage of pressure, flue gases, condensate, and/or any other fluid, gas, and/or vapor between abutting flanges of duct sections at a flange interface.

A clip for fastening a pipe to a support, comprising a fixed part, a mobile part, a first joint connecting a first edge of the fixed part and a first end of the mobile part, and a system for holding the mobile part a closed state. The system comprises a lever and a second joint connecting the lever to a second end of the mobile part, and an angled U-shape connected to the second edge of the fixed part, configured to permit the lever and the second joint to pass through the angled U-shape and to permit the lever to be positioned in a folded position against an external face of the mobile part to hold the mobile part in the closed state.

Aspects of the present disclosure relate to connection blocks and pump manifold systems, and related methods, for pumping operations (such as frac operations). In one implementation, a connection block for disposition along a pump manifold of a pump system includes a first end hub having a first tube and a first outer shoulder extending outwardly relative to the first tube. The connection block includes a second end hub opposing the first end hub. The second end hub has a second tube and a second outer shoulder extending outwardly relative to the second tube. The connection block includes one or more faces between the first end hub and the second end hub.