摘要:
Systems and methods are provided wherein a tube insert is at least partially disposed within the end portion of a tube. An alignment fixture can be used to assist in forming an aperture through the wall of the tube at a predetermined location that is aligned with at least one cavity in the outer surface of a tube insert.
摘要:
Drop tube inserts and apparatus adapted for use with a riser pipe of a liquid reservoir are provided. Apparatus include a drop tube insert at least partially disposed within an end portion of a drop tube. The drop tube insert includes a wall with inner and outer surfaces wherein the wall of the drop tube insert is devoid of any opening extending between its inner and outer surfaces.
摘要:
Drop tube segments are provided. Each drop tube segment may be attached to another drop tube segment of a drop tube assembly. The drop tube segments include a wall with a fastener receiving structure that is devoid of any opening extending between inner and outer surfaces of the wall. Methods of making a drop tube assembly are also provided. The methods include the step of inserting a second end portion of a first conduit over a first end portion of a second conduit while edges of an aperture extend radially outwardly away from an outer surface of a first wall of the first conduit.
摘要:
A drop tube segment is adapted for use with a liquid reservoir. The drop tube segment includes a conduit with an end portion and a sidewall including a sidewall portion at least partially defining an interior housing area. The drop tube segment further includes a valve assembly comprising a valve member attached to the end portion of the conduit, a float, and a linkage device pivotally connected to the valve member and adapted for communication with the float. The valve assembly further includes a driver member at least partially disposed in the interior housing area and adapted to selectively engage the linkage device. The driver member is in communication with the float such that movement of the float causes rotation of the driver member. An adjustment of the float in response to a liquid level in a liquid reservoir may rotate the driver member to engage the linkage device to facilitate in adjusting the position of the valve member with respect to the end portion of the conduit. The valve assembly further structure adapted to inhibit, such as prevent, fluid from leaking into the interior housing area.
摘要:
A drop tube segment includes a conduit with a first end portion and a second end portion. The drop tube segment further comprises a valve assembly with a valve member associated with the first end portion, a float, and a linkage device pivotally connected with respect to the valve member. The linkage device is adapted for communication with the float such that the float may facilitate in adjusting the position of the valve member with respect to the first end portion of the conduit in response to a liquid level in a liquid reservoir. The drop tube segment further includes a fastening section located at the second end portion of the conduit for fluid tight fastening with an end portion of another drop tube segment. The fastening section comprises a sealing surface and a threaded portion adapted for threaded engagement with a threaded portion of another drop tube segment. The drop tube segment still further includes a sealing member that engages the sealing surface of the fastening section and is adapted to engage a sealing surface of another drop tube segment.