The collar has a metal belt (10), a pair of projecting lugs (12, 14), a tightening rod (16) disposed in holes in the lugs, and tightening members (16A, 16B) co-operating with the rod and with bearing portions of the lugs. At least one of the lugs in the pair is a lug (14) having an extension, the bearing portion of which lug is formed in an extension (17) of the lug, which extension is folded over towards the rear of the lug, and is provided with a hole for the tightening rod. The extension (17) and the front portion (15) of the lug (14) having an extension are interconnected via a strip portion (20) forming a link loop defining an axial tunnel having its two axial ends open, the tunnel being shaped so that the angle of inclination between the extension (17) and the front portion (15) of the lug can change when the collar is tightened.

The collar has a metal belt (10), a pair of projecting lugs (12, 14), a tightening rod (16) disposed in holes in the lugs, and tightening members (16A, 16B) co-operating with the rod and with bearing portions of the lugs. At least one of the lugs in the pair is a lug (14) having an extension, the bearing portion of which lug is formed in an extension (17) of the lug, which extension is folded over towards the rear of the lug, and is provided with a hole for the tightening rod. The extension (17) and the front portion (15) of the lug (14) having an extension are interconnected via a strip portion (20) forming a link loop defining an axial tunnel having its two axial ends open, the tunnel being shaped so that the angle of inclination between the extension (17) and the front portion (15) of the lug can change when the collar is tightened.

The disclosure relates to a clip having a clip band which has two mutually adjacent ends which can be connected to each other by a clamping apparatus. A clamping screw is provided having a head portion and a shaft portion. The shaft portion has a shaft and a thread region, with which the clamping screw can be screwed to the clamping apparatus. The head portion has a clamping head for applying a pretensioning force in a pretensioning direction. The head portion has an assembly head for tightening the clamping screw and for ensuring a predefined torque. There is provision for the clamping head to have a shear plane at the upper side thereof.

The disclosure relates to a clip having a clip band which has two mutually adjacent ends which can be connected to each other by a clamping apparatus. A clamping screw is provided having a head portion and a shaft portion. The shaft portion has a shaft and a thread region, with which the clamping screw can be screwed to the clamping apparatus. The head portion has a clamping head for applying a pretensioning force in a pretensioning direction. The head portion has an assembly head for tightening the clamping screw and for ensuring a predefined torque. There is provision for the clamping head to have a shear plane at the upper side thereof.

A T-bolt clamp includes a circumferentially extending band and a fastening assembly that employs a T-bolt to tighten the clamp by turning a nut to draw loop ends of the band toward each other. One of the loop ends includes a slotted opening that permits a head of the T-bolt to be inserted and removed without removing the nut from the T-bolt. The fastening assembly is configured to constrain first and second bearing loops of the slotted loop end against movement away from each other during tightening of the clamp. Protrusions on the head of the T-bolt can be used to perform the constraining function by engaging slots in the bearing loops.

A surface well fracturing system having fluid conduits connected to surface fracturing equipment with quick connect systems is provided. In one embodiment, a fracturing system includes a frac pump, a frac supply manifold, and a fracturing fluid conduit connected to route fracturing fluid between the frac pump and the frac supply manifold. The fracturing fluid conduit is connected to the frac pump or to the frac supply manifold by a quick connect apparatus, which includes a segmented clamp having multiple clamp segments mounted on a shared support. Additional systems, devices, and methods are also disclosed.

A surface well fracturing system having fluid conduits connected to surface fracturing equipment with quick connect systems is provided. In one embodiment, a fracturing system includes a frac pump, a frac supply manifold, and a fracturing fluid conduit connected to route fracturing fluid between the frac pump and the frac supply manifold. The fracturing fluid conduit is connected to the frac pump or to the frac supply manifold by a quick connect apparatus, which includes a segmented clamp having multiple clamp segments mounted on a shared support. Additional systems, devices, and methods are also disclosed.