A working station for a packaging, machine, wherein the working station has a lifting unit having a pressure source and a lifting actuator connected to the pressure source. The lifting actuator comprises a hose comprising a wall having an inner surface and an outer surface disposed opposite the inner surface, and a seal having a seal cap engaging the outer surface. The seal further comprises an insert engaging the inner surface. Furthermore, the seal clamps a clamping portion of the wall of the hose between the insert and the seal cap in a fluidtight, preferably gastight, manner.

A self-contained breathing connector apparatus, includes a manifold having a manifold inlet, a first manifold outlet and a second manifold outlet, an inlet connector coupled to the manifold inlet, a first outlet connector coupled to the first manifold outlet, and a second outlet connector coupled to the second manifold outlet. The first outlet connector has a first valve and the second outlet connector has a second valve. The first manifold outlet includes a first valve housing for accommodating at least part of the first valve of the first outlet connector, and the second manifold outlet includes a second valve housing for accommodating at least part of the second valve of the second outlet connector.

Implementations of the present disclosure relate to a blind flange and a method of installing same for isolating hazardous energy in order to provide a safe environment for workers to conduct maintenance or repair work on a facility. The blind flange has a body that defines one or more modified bores. The one or more modified bores are alignable with flanged-connection apertures of one side of a flanged connection. The one or more modified bores are configured to receive and releasably hold a connection member therein, so as to connect to only one side of the flanged connection. The modified bores allow a blind flanged-connection to be disassembled and reassemble in less time than known blind flanged-connections when one side of the blind flanged-connection is disconnected from the blind flanged-connection. Furthermore, the blind flange of the present disclosure allows the blind flange to remain connected to one side of a flanged connection while the other side is disconnected.

Implementations of the present disclosure relate to a blind flange and a method of installing same for isolating hazardous energy in order to provide a safe environment for workers to conduct maintenance or repair work on a facility. The blind flange has a body that defines one or more modified bores. The one or more modified bores are alignable with flanged-connection apertures of one side of a flanged connection. The one or more modified bores are configured to receive and releasably hold a connection member therein, so as to connect to only one side of the flanged connection. The modified bores allow a blind flanged-connection to be disassembled and reassemble in less time than known blind flanged-connections when one side of the blind flanged-connection is disconnected from the blind flanged-connection. Furthermore, the blind flange of the present disclosure allows the blind flange to remain connected to one side of a flanged connection while the other side is disconnected.

A waterproof quick coupler which closes a port of a pressure vessel in an air-tight state during a water leakage inspection of a welding portion of the pressure vessel of a compressor. The quick coupler comprises: an outer body having an opening formed at a distal end portion thereof, an inner body flexibly disposed to be rotatable and linearly movable in the outer body; a cap coupled to the distal end portion of the outer body, and a fixing lever flexibly disposed between the inner body and the cap to clamp and unclamp a port of a pressure vessel when the inner body moves forward and backward, wherein the inner body may be locked in the outer body when moving backward, and may be unlocked from the outer body when the outer body rotates in one direction.

A waterproof quick coupler which closes a port of a pressure vessel in an air-tight state during a water leakage inspection of a welding portion of the pressure vessel of a compressor. The quick coupler comprises: an outer body having an opening formed at a distal end portion thereof, an inner body flexibly disposed to be rotatable and linearly movable in the outer body; a cap coupled to the distal end portion of the outer body, and a fixing lever flexibly disposed between the inner body and the cap to clamp and unclamp a port of a pressure vessel when the inner body moves forward and backward, wherein the inner body may be locked in the outer body when moving backward, and may be unlocked from the outer body when the outer body rotates in one direction.

Plumbing fitting assemblies are described. The plumbing fitting assemblies use a male and female fitting combination that enables a user or installer to make a sealed connection on an internal diameter of a female part or receiving end by way of an o-ringed shank on a male part or insert end. A connecting device is rotatably attached to the male end. The connecting device also engages to an outer surface of the female part such that the sealed fitting assemblies will not disconnect under normal pressure of a fluid or air working through the assemblies.

A cap loosening prevention device prevents a cap from loosening when the cap is fitted to a body. The device includes a body ring formed in a circular shape along the circumference of the body and having a cut portion. A protruding part is formed on the outward surface of the body ring. The protruding part has an incline with respect to the outward direction of the body ring, and the uppermost end of the protruding part is cut perpendicularly with respect to the outward direction of the body ring. The cap is prevented from completely loosening in the direction opposite to the rotational direction of the cap when the cap is fitted to the body, such that the cap can be firmly coupled to the body without separating from the body. The rotation of the cap is minimized to enable a rapid operation when a pipe is replaced.

A cap loosening prevention device prevents a cap from loosening when the cap is fitted to a body. The device includes a body ring formed in a circular shape along the circumference of the body and having a cut portion. A protruding part is formed on the outward surface of the body ring. The protruding part has an incline with respect to the outward direction of the body ring, and the uppermost end of the protruding part is cut perpendicularly with respect to the outward direction of the body ring. The cap is prevented from completely loosening in the direction opposite to the rotational direction of the cap when the cap is fitted to the body, such that the cap can be firmly coupled to the body without separating from the body. The rotation of the cap is minimized to enable a rapid operation when a pipe is replaced.

Example aspects of a nozzle cap for a fire hydrant and a method for manufacturing a nozzle cap to detect leaks in a fluid system are disclosed. The nozzle cap for a fire hydrant can comprise a cap body, the cap body comprising an inner housing and an outer housing, the outer housing defining a cavity; a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant; and a metal insert contacting the vibration sensor and the inner housing.