A slide valve for a powdered material or a material with a small grain size. The valve comprises a stiff frame, which defines a discharge mouth to discharge the material, and a shutter of the discharge mouth, which is activated by respective moving organs. The valve is characterized in that it comprises a height adjusting device for a sealing element. The height adjusting device is suited to compensate the loss of sealing effect between the lower face of the sealing element and an upper surface of the shutter. The loss of sealing power is due to the wear generated by the relative friction between the lower face and the surface.

A bulk adhesive transfer system for transferring adhesive particulate to a melter includes a bulk supply and a transfer device, which may define a hopper of the melter, a mobile bin, and/or a buffer unit. The transfer device is configured to receive unmelted adhesive particulate from the bulk supply and then be selectively docked with the melter to transfer the adhesive particulate to the melter. The bulk adhesive transfer system may also include a knife gate valve device, which includes a plurality of ports that sequentially open and close to control flow of the adhesive particulate towards the melter. The bulk adhesive transfer system simplifies refilling operations for a melter while enabling continuous operation of the melter, even when the transfer device is undocked for removal from the melter.

A gate valve for use in oil field applications and including a stem seal assembly and a seat seal assembly. Each of the stem and seat seal assemblies accommodate independent primary, secondary, and tertiary seals for sealing the space between the stem and the bonnet, or the seat ring and the valve body, respectively. The provision of multiple seals in each assembly provides redundancy that allows for maintenance of the seal between the components even if one or two of the individual seals fail.

This invention relates to an apparatus for adapting an existing pipeline. The apparatus includes a clamp portion adapted to fit around at least part of an existing pipeline in use and at least one neck or branch portion depending from the clamp portion, and a valve means.

A multi-seat gate valve with a pair of sealing members separated by a gate wherein each sealing member is secured between a bottom edge surface on the gate and a pair of locking members until the gate valve is at a fully closed position and proper seating is achieved.

[Object] To provide a gate valve in which a valve plate can be detached from a valve rod easily and reliably even if the valve rod is tightly inserted in a valve-plate mounting hole.

[Solution] In a gate valve in which a valve plate 3 and a valve rod 4 are detachably connected along a rod axis L by screwing a connecting screw 14 in a screw hole 21 formed at an end of a valve rod 4 along the rod axis L through a screw insertion hole 18 formed in a valve plate 3, the valve plate 3 includes a contact portion 25 that is in contact with the connecting screw 14, and when the connecting screw 14 is loosened to detach the valve plate 3 from the valve rod 4, the valve plate 3 is displaced along the rod axis L together with the connecting screw 14 by an impellent force of the connecting screw 14 via the contact portion 25 to move to a valve-plate detaching position at which the connecting screw 14 comes out of the screw hole 21 of the valve rod 4 completely.

A system and method for purging an isolation valve using a liquid purge medium.

A system and method for purging a bottom slurry circuit isolation valve using hydrocarbons.

The present invention is an elastic (mechanically stretchable), sanitizing pouch configured to receive and hold an Electronic Device of a predetermined configuration. The elasticity of the fabric used maximizes surface contact with the Electronic Device and the closeness of the fabric of the invention with the outside surfaces of the Electronic Device. A liftable and removable cover flap on the front of the invention is used to hold and access the inside of the invention. The back of the invention includes at least one pocket. The invention further includes a pull tab to help lift an Electronic Device out of the invention. While inside the invention, the silver ions are released in the fabric and inhibit the colonization of bacteria, viruses and fungus on the Electronic Device.

In embodiments, a gate valve includes a valve body including a flow passage from a first opening to a second opening, and a gate channel having a first end intersecting the flow passage and a second end delineated by a third opening. A valve cover fits over the third opening. A cap fits over a valve cover opening. In embodiments, a valve cover includes a body with a second sealing surface protruding from a first sealing surface, both around an opening of the body. A cap has a third sealing surface to mate with the first sealing surface, and a fourth sealing surface congruent to the second sealing surface. In embodiments, a valve cover cap includes a body with a first sealing surface on an end of a wall. Pin flanges each have a pin hole having a pin hole axis oriented perpendicular to a center axis of the wall.