摘要:
A heating, ventilation, and air-conditioning (HVAC) conduit includes a first HVAC line at least partially nested within a second HVAC line having a configuration defining a U- or C-shaped receiver in cross-section. The first HVAC line is fabricated of a first material and the second HVAC line is fabricated of a second material that is different from the first material.
摘要:
A coaxial hose for electrostatic oiling systems that includes a flexible external tube, and a flexible internal tube for the circulation of a second fluid inside thereof. The internal tube together with the external tube form an annular space for the circulation of a first fluid. The internal tube includes an internal layer made of PTFE that is intended to contain the second fluid, internal braiding that is intended to lend the internal tube pressure resistance and an external layer that is made of polyamide material which is intended to prevent the passage of the first fluid through the braiding.
摘要:
An elongatable and retractable hose includes an inner fluid conductor made of an elastomeric material having raised longitudinal ribs thereon and an outer jacket disposed around the inner fluid conductor.
摘要:
An inlet water pipe includes a first pipe, and a second pipe mounted into the first pipe. A first channel transporting first liquid is formed through the first pipe. A second channel transporting second liquid is formed between the first pipe and the second pipe. A connecting sleeve is hollow and is mounted around a front end of the first pipe. A valve core is mounted on a front end of the connecting sleeve, and having a center hole centrally and axially formed through the valve core and multiple water outlets formed in a periphery of the valve core and communicating with the second pipe. The inlet water pipes gathers two different waterways in one inlet pipe and allow easy connection with faucet, and ensures good hermetic seal.
摘要:
An end fitting (300), flexible pipe (100), riser (203), and method of producing the same are disclosed. A method of venting gas from annuli (312, 319) of a flexible pipe is also disclosed. The end fitting includes a first vent flow fluid communication path (311) and a further vent flow fluid communication path (318). The end fitting is capable of enabling gas to be vented from a flexible pipe body with two annulus regions (312, 319).
摘要:
The formation of a resin layer, a metal layer and an insulating resin layer on an outer surface of a corrugated metal pipe for flowing a fluid provides a flexible pipe, whose corrugated metal pipe does not suffer from having apertures even with spark discharge by induced lightning.
摘要:
A water hose covering assembly for capturing water from a ruptured water hose includes a pair of hoses that each may direct a flow of fluid. A pair of tubes each houses one of the hoses and contains the fluid if the either of the hoses rupture. A conduit extends between and is fluidly coupled to each of the tubes. A drain is fluidly coupled to the conduit and disposes of the fluid when one of the hoses ruptures.
摘要:
The invention relates to an unbonded flexible pipe with a length and a longitudinal axis. The pipe comprises an inner sealing sheath defining a bore, a pressure armor layer, an intermediate sealing sheath and a tensile armor. The pressure armor layer comprises at least one elongate metal element arranged with pressure armor gaps and is arranged in an annulus provided between the inner sealing sheath and the intermediate sealing sheath. The tensile armor is arranged on the outer side of the intermediate sealing sheath. Either the intermediate sealing sheath forms a drainage layer or the unbonded flexible pipe further comprises a drainage layer arranged in the annulus. The drainage layer comprises at least one drainage path arranged along the length of the pipe, wherein the drainage path is in fluid communication with the pressure armor gaps. The drainage layer optionally comprises a perforated tube.
摘要:
An end-piece having: an end vault extending along a central axis; an outer cover fixed to the end vault and defining, with the end vault, a reception chamber for receiving an end section of the armour elements; at least one annular member applied externally to the armour elements of an armour layer, the annular member being al least partially accommodated in the reception chamber between the armour elements and the outer cover.The annular member applies a radial tightening pressure higher than 100 bars towards the central axis onto the armour elements.
摘要:
A wound tube is made of profiled plastic strips, the profiling of which comprises at least the edge region. The edge region is designed such that edge regions of successive coils, the edge regions lying mutually adjacent during winding, can be connected in a form-fitting manner, and at least one of the surfaces of the plastic strips has ribs projecting perpendicularly essentially to one side in order to form a flat inner surface during winding. The tube wall of the wound tube is designed as a double wall and is assembled from a first inner plastic strip and from a second outer plastic strip, wherein the ribs projecting perpendicularly essentially to one side fix the distance of the outer plastic strip from the inner plastic strip. A device with which such wound tubes can be advantageously produced on-site is also provided.