A stainless steel eccentric half ball Product Overview
PQ340H, BPQ340Y stainless steel eccentric half ball is to develop high-tech products in recent years, depending on the rotary valve chain to the valve flow or occlusion. Kai-standard use eccentric eccentric half ball valve eccentric ball and seat, when the valve stem rotates in common trajectory self-centering, the closing process more closed more tightly, fully achieve a good sealing purposes. Stainless steel eccentric half ball switch light, small size, can be made into a large caliber, reliable sealing, simple structure, easy maintenance, with the spherical sealing surface often in the closed state, can not easily be eroded media, in various sectors has been widely used for sewage treatment, pulp, aluminum, urban heating heating To mark the occasion stringent; for power plants, control hydraulic slag or gaseous pipeline.
Second, the structural characteristics of stainless steel eccentric half ball
1) open and close without friction. This feature completely solve the traditional valve sealing surface due to friction between the seal and the impact of the problem.
2) the coat structure. Of the valve installed in the pipe-line inspection and maintenance directly, can effectively reduce the plant parking and reduce costs.
3) single seat design. Remove the valve due to abnormal pressure in the cavity medium affect the use of security issues.
4) low torque design. Special structural design of the stem, just with a little hand can easily open and close the valve.
5) wedge-shaped sealing structure. Stainless steel eccentric half ball mechanical force is provided by the stem, ball and wedge against the seat and seal, making stainless steel ball valve seal is not affected by pressure changes in the pipeline, in various conditions have reliable sealing performance Guarantee.
Third, the main advantages of stainless steel eccentric half ball
1. Water loss is zero. Eccentric structure, after the valve is opened, the flow channel completely smooth, zero head loss. You can save a lot of energy.
2. Reliable sealing manner. Soft seal structure has self-sealing properties, hard seal structure with elastic compensation performance.
3. Wear resistance and long service life. Ball in the open, the ball cap biased in the valve body, it is not directly scour the media.
4. Automatic purge function. Hard seal eccentric half ball valve using blade-like cap edge, not only can scrape off the dirt on the seat, it can also cut off the debris.
5. Open and close quickly. An eccentric crank rotated 90 degrees to achieve open and close, open and close a short time
6. Suitable for high flow rates. Straight flow channel, sturdy eccentric crank to make it suitable for high flow rates and vibration-free
Fourth, stainless steel eccentric half ball technical parameters
Connection: flange connection
Nominal diameter: DN40-500mm
Nominal pressure: 1.6 (MPa)
Medium: pulp, ash, petroleum gas and other media
Suitable temperature: -100 ℃ + 600 ℃
Body material: ductile iron, carbon steel, stainless steel
Packing: Wooden
Fifth, stainless steel eccentric half ball Applications
Stainless steel eccentric half ball product is particularly suitable for steel, aluminum, fiber, tiny solid particles, pulp, coal ash, petroleum gas and other media. Because surfacing different alloys (or a combination of ball) bi-metal seal pair of matching eccentric
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