There is provided a sealing detection method for a sealing structure, comprising the following steps: S1, attaching a thin film on a gasket to seal an opening; S2, disposing a sealing ring directly below the base to seal a lower opening of the mounting through hole; S3, providing a vent hole on sealing ring through which the sealing ring communicates with a gas source with a gas pressure sensor; S4, starting to supply or pump gas to form a positive pressure or a negative pressure region between the sealing ring and the base; S5, maintaining the air pressure state for a certain time, during which the gas pressure sensor performs real-time detection of gas flow; S6, comparing detected gas flow with qualified threshold range; S7, sorting products with the sealing structure according to detection results; S8, peeling off the thin film and completing the detection.

An apparatus for hydrostatic testing of openings in items surrounded by a flange, such as flanged pipe sections, flanged pipelines, flanged hose assemblies, as well as other flanged equipment requiring periodic pressure testing. The apparatus is clamp like device that easily can be clamped onto a flange of a flanged item to be tested, without the need for conventional nuts and bolts. The instant apparatus is more efficient and safer than conventional apparatus used for hydrostatic testing.

A gas-tight plug is attachable by pressing it against an opening portion of a hollow component, the gas-tight plug being inserted into the opening portion using the force of pressing to be automatically aligned so that if the positions of a plurality of opening portions vary within an allowable tolerance, the axial directions of all the opening portions and the axial directions of the respective gas-tight plugs are automatically caused to coincide. A gas-tight plug includes an end portion, a contact part of a base portion end of the gas-tight plug coming into contact with a base of the pressing mechanism has a circular flat surface coaxial with the end portion, and the circular flat surface has a diameter more than 0.12 times and less than 0.2 times a total length of the gas-tight plug.

A device for use in a leak check test of an air data system includes a device body, an opening extending into the device body with the opening being configured to allow a probe to be at least partially inserted into the opening, and walls surrounding the opening with the walls being situated to seal a port in the probe such that air is prevented from flowing into or out of the port while the probe is inserted into the opening. A method of performing a leak check test includes covering the port with the device to seal the port, heating air within a gas path in the air data system, measuring the change in pressure of the air resulting from an increase in temperature of the air, and determining whether the air data system is sealed depending on the change in pressure of the air.

Smoke detection sample points and systems are described herein. One smoke detection sample point includes a body having a chamber formed within the body, a first air flow conduit formed within the body having two ends and the ends being open, to allow air to pass through the first air flow conduit between an area to be sampled and the chamber, and a second air flow conduit formed within the body having two ends with one end being open and having an air seal, to prevent air from passing through the second air flow conduit between the area to be sampled and the chamber.

Shut-off device for a duct, in which a measuring device comprising a transmitter is housed, the shut-off device comprising: a connecting ring formed of a peripheral wall and an inner rim, which is at least present on one section of the periphery of the peripheral wall and defines a housing for accommodating at least part of the transmitter; a cover configured to close the duct and clip onto the connecting ring and thus rigidly connect the transmitter of the measuring device to the shut-off device.

A medical gas separator for testing for leaks on a medical gas delivery system. The separator can be used to selectively fluidly join or separate an upstream portion and a downstream portion of the medical gas delivery system for testing for leaks on the downstream portion while the upstream portion can remain in use. The separator includes an upstream element connected to the upstream portion, a downstream element connected to the downstream element, and either a spacer element or a blanking element arranged therebetween. The separator is convertible between a first configuration that fluidly joins the upstream and downstream portions, and a second configuration that fluidly separates the upstream and downstream portions. The separator is convertible between each configuration by switching out the spacer element with the blanking element.

A register adapter comprising: a flange adapter, flange adapter comprising: a flange, the flange being a generally planar surface configured to abut a register grill when the flange adapter is attached to the register grill, the flange having a generally circular opening; a cylindrical portion extending from the flange, the cylindrical portion generally aligned with the circular opening; a support member attached to the interior of the cylindrical portion; an attachment means located on the support member, the attachment means configured to removably attach to the register grill, holding the flange adapter in place on the register grill; a first radial flange extending from the outer surface of the cylindrical portion; a second radial flange extending from the outer surface of the cylindrical portion; a flex duct connector having a generally cylindrical shape and configured to attach to the cylindrical portion, the flex duct connector also configured to attach to a length of flex duct; a friction surface attached to the outer surface of the flex duct connector; an inner flange located on the inner surface of the flex duct connector; a latch located on the flex duct connector, the latch configured to attach to the first radial flange, thereby connecting the flex duct connector to the flange adapter; a generally circular gasket configured to abut against the second radial flange and the inner flange, thereby creating a generally airtight seal; and a webbing tie configured to attach a flex duct to the friction surface and the outer surface of the flex duct connector; where air flow is configured to travel in either direction from the flex duct through the interior of the flex duct connector, through the interior of the cylindrical portion, through the circular opening and into the register grill. A register adapter system comprising: a flange adapter attachable to a register grill, the flange adapter comprising: a flange, the flange being a generally planar surface configured to abut the register grill when the flange adapter is attached to the register grill, the flange having a generally circular opening; a cylindrical portion extending from the flange, the cylindrical portion generally aligned with the circular opening; a support member attached to the interior of the cylindrical portion; an attachment means located on the support member, the attachment means configured to removably attach to the register grill, holding the flange adapter in place on the register grill; a first radial flange extending from the outer surface of the cylindrical portion; a second radial flange extending from the outer surface of the cylindrical portion; a flex duct connector

A tub drain overflow test system employs a kit with a connecting pipe with a front cylindrical portion having an inner threading and an intermediate annular flange coaxial with the front cylindrical portion. The front cylindrical portion extends through an overflow hole of a tub so that the annular flange, optionally with a seal ring, abuts the rear surface of the tub wall. A test cap has outer threading that mates with inner threading of the front cylindrical portion. The test cap also has an annular flange and a breakaway test seal with a projecting grip tab. The test cap has an inner lip that provides a catch for inwardly extending tabs on a finishing fixture to robustly attach. The test cap allows the overflow drain to be tested and then a seal portion is removed to provide access to the opening and the finishing fixture is mounted in place.

A device for removing a valve hole sealing substitute from a hub includes an industrial camera, a removal manipulator, a rotary encoder, a rotary spindle, a processor, a frame and a console, wherein the console is installed on the frame, the console is connected to a production line by a roller bed, a color identification camera and the industrial camera are respectively installed on the frame and aligned with the console, the rotary spindle is installed below the console and configured to drive the hub above the console to rotate, and the removal manipulator is arranged above the console. The device and method solve the problem of relying on personnel to remove the valve hole sealing substitute, improve the labor productivity, and improve the automation of the hub production process.