DBB double ball valve (double plug double discharge ball valve) Product Overview
The DBB double ball valve (double plug double discharge ball valve) is designed to replace the complexities of multiple valve connections in conventional piping. Reduce leakage points in the system, quickly achieve emissions, shut down function. Double plug double discharge ball valve to save the installation space to the maximum. Simplify the installation process. Reduce pipeline pressure. Convenient instrument cleaning and maintenance, reduce costs.
DBB double ball valve (double plug double discharge ball valve) principle
DBB double ball valve with full diameter and reduced diameter two series. Full diameter ball valve channel diameter and pipeline diameter, not only the smallest fluid resistance, but also easy to pipe cleaning. The reduced diameter ball valve fluid flow resistance than the same diameter cut-off valve fluid resistance is much lower than the same diameter ball valve to about 30% lighter, effectively reducing production costs and prices, which has been more widely used.
DBB double ball valve (double plug double discharge ball valve) features
Stem anti-out and effective sealing structure
The valve stem adopts the down-load type to set up an inverted seal structure with a sealing gasket, and the sealing force of the inverted seal increases with the increase of the medium pressure in the valve cavity to ensure the sealing effect of the valve stem. When the valve chamber abnormal pressure, the stem will not be washed out. Filler with a properly designed V-type structure, the valve chamber can be the media pressure and external gland locking force effectively translated into the valve stem sealing force.
"Fire-resistant structure"
According to the needs of users, the ball valve can be designed into a refractory structure, in case of a fire and the sealing ring burns, the sealing parts of the ball valve can form a metal-to-metal sealing structure that effectively prevents the diffusion of the medium and prevents the fire from expanding .
"Locked structure"
For installation in the field or to prevent non-staff misuse, and in some situations where the vibration was hit the handle easy to produce misoperation valve, the valve fully open or fully closed position without locking holes, if necessary, plus Lock, play a safety role.
"Anti-static structure"
The ball valve can be designed with anti-static structure, that is, a conductive spring is arranged between the ball body and the valve stem, the valve stem and the valve body so that the static electricity generated in the valve opening process can be introduced into the pipeline through the set electrostatic channel to be removed to the ground The purpose of static electricity. Avoid static ignition Ignition of flammable media to ensure system safety.
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