摘要:
A device (130) and method for intervening on a branch of a fluid conduit (20), the device comprising: a removable flange (105) comprising: two portions (110, 115) linked by a removable junction (120) having, when the two portions are linked, an opening surrounding the branch and a locking means (130) for locking the flange around the branch such that the opening sealingly surrounds the branch, an inflatable airlock (135) comprising: an inflatable body (140) having at least one inflatable protuberance (145) and a means (150) for sealed attachment to the flange.
摘要:
A pipe pulling technique where an adaptor is attached to the end of the pipe prior to the pipe being pulled underground, for example through a drilled hole. Attaching the adaptor to the pipe end prior to the pipe being pulled underground is faster and reduces danger to workers compared to the conventional process of attaching the adaptor to the end of the pipe after the pipe has been pulled underground.
摘要:
A tamper-evident device for valves comprises: an anti-theft buckle (1), provided with an anti-theft buckle body (17), a pulling portion (4), a tearable portion (5), an elastic hook (7), and a position limiting surface (6); an anti-theft cover (2), provided with a position limiting contour (8) and a hook receiving portion (9); and a position limiting slot (10) provided at a passage outlet (13) of a valve body (3). During use, the anti-theft cover (2) is connected to the passage outlet (13), and the elastic hook (7) is hooked to the hook receiving portion (9) and fitted to position limiting slot (10) to limit relative positions of the anti-theft cover (2) and the valve body (3). Also disclosed is a valve having the temper-evident device. The temper-evident device is easy to open and can effectively prevent stored materials from being stolen.
摘要:
A lockable pipe cover includes an inner cap and an outer cover which are selectively coupled together for axial rotation. When the cap is locked, the inner cap and the outer cover are free to rotate independently from one another thus rotation of the outer cover will not remove the cap from the pipe. In the unlocked position, the inner cap and the outer cover are coupled for rotation and thus rotation of the outer cover results in rotation of the inner cap.
摘要:
An irrigation sprinkler canister seal comprising a flanged screw having a threaded rod and a circular flange extending perpendicular to the rod. The seal further includes a plug piece having a threaded bore adapted to receive the threaded rod, and further including a continuous frusto-conical surface extending around an elongate axis of the plug piece, the frusto-conical surface being configured to form a circumferentially continuous fluid seal against a cylindrical rim of a cylindrical bore.
摘要:
A sealed stopper for an opening in a junction tubing between an enclosure and a pipe, including an attachment ring. The stopper includes a rigid lid and a sealing assembly borne by the lid including a passive annular gasket including at least one annular internal chamber, a first static annular gasket, a second static annular gasket and a flat gasket ensuring the seal of the opening of the tubing.
摘要:
A cap lock system for limiting access to an access port of a gaseous system includes an outer cap including first and second key insertion passages, an inner lock having first and second key receivers and a rotatable key having first and second engagement fingers each engageable with an aligned set of key insertion passages and key receivers.
摘要:
Apparatus and methods for temporarily sealing a pipe including apparatus and methods for creating a temporary airtight seal at the open end of a pipe in a plumbing or refrigeration system. One such apparatus includes a body, grommet, washer, and a nut. Multiple airtight seals are created including a first primary seal between an exterior of the pipe and the grommet and a secondary seal between the open end of the pipe and the washer. The grommet does not require teeth and the apparatus does not require adhesive, sealant, or any other type of similar materials. Use of the apparatus and methods greatly minimizes and/or eliminates the potential for marring or otherwise distorting the open end of the pipe, thereby facilitating reuse of same.
摘要:
To mount a partition cover (2) in a pipe joint (1), a nut (12) is screwed onto a joint body (11) to sandwich the partition cover (2) between the joint body and the nut. At this time, the partition cover is supported so as not to press a sleeve (13). As such, an opening (1a) of the pipe joint is sealed while preventing the sleeve from being deformed due to the partition cover being mounted.
摘要:
A torque-limiting cap (100) for an air conditioning service port (14) includes an inner body assembly (122) having a retaining body (116) configured for engagement on the service port, and an outer body assembly (134) annularly disposed around the inner body assembly. The outer body assembly (134) has a first ratchet portion (140) configured for engagement with a second ratchet portion (146) that is disposed on the inner body assembly (122). When the outer body assembly (134) is torqued, the outer body assembly transmits the torque to the inner body assembly (122) from the first ratchet portion (140) to the second ratchet portion (146) to threadably engage the retaining body (116) onto the service port (14). When there is a preset amount of torque resistance, the first ratchet portion (140) slips with respect to the second ratchet portion (146) such that no additional torque is transmitted to the inner body assembly (122) from the outer body assembly (134).