Hard seal ball valve product knowledge and advantages
May 04 16:02:38, 2021
Sealing ball valve for the eccentric metal seal structure, the sealing form of metal-to-metal seal, metal seal can be exchanged for the metal seal, stainless steel plate and graphite composite plate seal on the metal seal. The form of hard seal butterfly valve drive in addition to electric : Manual, worm gear transmission, pneumatic and so on. Hard seal ball valve butterfly plate installed in the diameter direction of the pipe. In the hard seal ball valve body cylindrical channel, the disc-shaped disc rotates about the axis, the rotation angle is between 0 ° ~ 90 °, rotated to 90 °, the valve is fully open state card. The characteristics of the new high-life stainless steel butterfly valve and butterfly valve in the course of the existing problems At present, the hard seal ball valve, hard seal butterfly valve as a system used to achieve on-off and flow control components, has been in the petroleum, chemical, metallurgical, hydropower And many other fields have been extremely widely used. In the well-known butterfly valve technology, the sealing structure adopts the sealing structure, the sealing material is rubber, polytetrafluoroethylene and the like. Due to the structural characteristics of the restrictions, do not meet the high temperature, high pressure and corrosion-resistant, anti-wear and other industries. A more advanced butterfly valve is a three-eccentric metal seal butterfly valve, the valve body and the valve seat as a single component, seat sealing surface layer surfacing temperature, corrosion resistant alloy material. Multi-layer soft stacked ring fixed to the valve plate, this butterfly valve compared with the traditional butterfly valve with high temperature, light operation, opening and closing without friction, closed with the torque of the transmission mechanism to compensate for increased sealing, improved butterfly valve The sealing performance and extend the service life of the advantages.
Neck & shoulder Heating Pad is a specific type of heating pad, which is used for curing pains and fatigue happening to human neck & shoulder.
It has a detachable controller, with 4 heat setting options.
Normally it will shut off automatically after 2 hours, for the sake of human safety.
