American standard valve for nominal pressure PN16.0Mpa, working temperature 1. The valve body has two structures of casting and welding. 2. The valve seat adopts O-ring sealing and pre-tightening floating valve seat structure to seal the valve inlet and outlet in both directions; and the opening and closing force of the structure is only 1/2 of the normal valve, which can release, Close the valve. 3. Metal-to-metal seal valve, the body has a grease injection structure, the grease through the grease, the valve seat into the sealing surface, so that the valve to zero leakage. 4. With diversion hole valve gate, whether it is fully open or fully closed with the seal surface is consistent, the sealing surface is protected from direct erosion of the media, thereby extending the service life. 5. When the valve is fully open, smooth to a straight line, the flow resistance coefficient is minimal, no pressure loss, can pass the hair ball cleaning pipeline. 6. The valve adopts the packing structure with self-sealing ability, and the packing box is provided with auxiliary sealing grease injection structure, and the sealing performance is reliable. 7. When the valve is closed automatically pressure relief function, to ensure the safety of the valve. 8. The product is fully enclosed structure, protective performance, can adapt to all-day requirements. 9. Lifter valve with indicator rod or observation window to indicate the opening and closing of the valve, rotary valve with closed gear rotation opening and closing instructions agencies. 10. Buried valve surface with epoxy coal tar preservative treatment, with the same life line.
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