A self-lubricating flexible carbon composite seal includes an annular body formed from a flexible carbon composite.

A self-lubricating flexible carbon composite seal includes an annular body formed from a flexible carbon composite.

A regulating valve that includes a valve stem for driving a valve body, and a gland portion slidably holding the valve stem, the gland portion including a lid portion having a through-hole communicating with the inside of the valve box, the valve stem being inserted into the through-hole, a spacer provided between the inner wall of the through-hole and the valve stem, one yarn packing disposed above the spacer, at least two adapter packings disposed via the yarn packing in a slide direction of the valve stem, the adapter packings being made of a material having a smaller thermal expansion coefficient and a higher hardness than the yarn packing, a packing follower disposed on the adapter packings opposite to the valve box, a disc spring disposed on the packing follower, and a packing flange disposed above the disc spring and the packing follower, the packing flange being fixed to the lid portion.

A butterfly valve capable of preventing leakage under demanding environmental and operating conditions. The valve includes two stem seal assemblies. The stem seal assemblies include a first pusher, a first energizer, a second pusher, a second energizer, and a force transmitting member. The force transmitting member is configured to transfer an axial load to the second pusher, which causes the first and second energizer to expand radially to create a secondary and tertiary seals between the stem seal assembly and valve stem. In addition, the force transmitting member is configured to transfer an axial load to the first pusher which creates a primary seal.

A valve packing having independently loaded packing rings is disclosed. A packing assembly for a fluid valve includes a first packing ring, a first follower to be disposed at least partially within a bore of a bonnet of the fluid valve to apply a first load to the first packing ring, a second packing ring sized to fit within a bore of the first follower, and a second follower to be disposed at least partially within the bore of the first follower to apply a second load to the second packing ring within the bore of the first follower.

A bonnet assembly may be coupled to a valve block. The bonnet assembly may include a bonnet body extending, in an axial length, between a first and second end of the bonnet body. Additionally, the bonnet body may have a sealing surface on the second end. Further, a bonnet retainer nut may be provided with passage axially extending through a first end surface to a second end surface. The bonnet retainer nut may be disposed on the bonnet body such that a portion of the bonnet body is enclosed within the passage of bonnet retainer nut. Furthermore, the bonnet retainer nut may lock the bonnet body.

The present disclosure provides a straight-stroke no-material-loss high-temperature normal-pressure filler sealing structure, comprising: an upper valve cover with an accommodation cavity; a valve stem, passing through the accommodation cavity of the upper valve cover; a filler component, located in the accommodation cavity and sleeved on the valve stem; a filler gland sleeved on the valve stem, whose bottom is inserted into an opening of the accommodation cavity.

The present disclosure provides a straight-stroke no-material-loss high-temperature normal-pressure filler sealing structure, comprising: an upper valve cover with an accommodation cavity; a valve stem, passing through the accommodation cavity of the upper valve cover; a filler component, located in the accommodation cavity and sleeved on the valve stem; a filler gland sleeved on the valve stem, whose bottom is inserted into an opening of the accommodation cavity.

A motor-driven throttle valve for an exhaust duct and having: a tubular duct, which is designed so that exhaust gases can flow through it; a throttle shutter, which is arranged inside the tubular duct and is mounted so as to rotate around a rotation axis; a first shaft, which is mounted so as to rotate around the rotation axis and supports the throttle shutter; an electric actuator, which is provided with a second shaft and is designed to rotate the shaft around the rotation axis; a support bearing, which supports the shaft in a through manner and is arranged on the outside of the tubular duct; and a spring, which applies to the shaft an elastic force, which axially pushes the shaft and, at the same time, is configured to transmit a rotary motion around the rotation axis from the second shaft of the electric actuator to the first shaft supporting the throttle shutter.

A faucet assembly includes a housing which includes a first faceplate defining a first and second opening which extend through the first faceplate and spaced apart and a seal member on the first faceplate which surrounds the first and second openings. A cartridge assembly positioned within an opening in the housing which includes a second faceplate, which abuts the seal member and forms a seal between the second faceplate and the seal member. Second faceplate defines third opening which extends through the second faceplate. With rotation of the second faceplate, third opening changes position relative to first faceplate to include the third opening positioned in one of: alignment with a portion of first opening and a portion of second opening, alignment with the first opening or alignment with the second opening.