Metal seal valve Q41H, Q41Y, Q47H, Q47Y eccentric structure, during shutdown, cold seal between the valve seat and the ball can increase rapidly than the pressure to ensure a reliable seal seal pair. When the valve is open, from the valve seat and ball quickly, effectively reducing the operating torque, and to control the possibility of injury and the spherical surface of the valve seat between a minimum. 2, the metal seal floating ball with a spring-loaded structure, under normal circumstances to ensure close contact with the sealing surface of the sphere seal between the valve seat, and in high temperature conditions, can effectively pieces of thermal expansion within the compensation, to avoid high temperatures due to jamming, suitable for small and medium-caliber high temperature applications. 3, metal seated ball valve in addition to the fixed characteristics eccentric metal seal eccentric ball, the other advantages of this tool also works, in addition, it can be used in both directions, and difficult dirt deposited in the chamber, according to the user's working conditions, but also sewage outlets in the chamber. 4, the sphere surface metal seal valve using a special hardening process, the whole seat with special hard material or partial hard surfacing materials to ensure a suitable hardness difference between the seal pair. 5, since the surface of the sphere with a special surface hardening treatment, valve seat with surfacing carbide, so in the process of opening and closing the valve in the well is subjected to scouring medium, especially for solid particles and abrasive media. 6, in addition to the special surface of the sphere surface and seat surface treatment, the use of the other in terms of flexible graphite sealing materials, metal spiral wound gaskets, etc., it can be used for high-temperature, high-pressure conditions, and a fire-resistant features. Metal seal valve main technical parameters and performance standards: Nominal Diameter (mm) metal sealed floating ball valve metal seal metal seal fixed ball valve DN15 ~ 200, NPS1 / 2 ~ 8 DN50 ~ 500, NPS2 ~ 20 DN50 ~ 300, NPS2 ~ 12 Nominal pressure (Mpa) PN1.0 ~ 10.0, Class150 ~ 600,10K, 20K PN1.0 ~ 16.0, Class150 ~ 900,10K, 20K PN1.0 ~ 2.5, Class150,10K valve materials and conditions applicable parts Name Material Body WCB ZG1Cr18Ni9Ti CF8 (304) CF3 (304L) ZG1Cr18Ni12Mo2Ti CF8M (316) CF3M (316L) Ball Stem 2Cr13 1Cr18Ni9Ti 0Cr19Ni9 (304) 00Cr19N11 (304L) 1Cr18Ni12Mo2Ti 0Cr17Ni12Mo2 (316) 00Cr17Ni12Mo2 (316L) seals special hardening material For media mud, paper pulp, fluids containing solids and slurries, pulp, steam, high temperature fluids containing solids, high-frequency, high-pressure Temperature -29 ~ 150 ℃ -29 ~ 250 ℃ -29 ~ 500 ℃ design and manufacture GB / T 12237-1989, API 608, API6D, JPI 7S-48, DIN3357 structural length GB / T 12221-1989, ANSI B16.10, JIS B2002. Flange JB / T74 ~ 90 (JB74 ~ 90), GB9112 ~ 9131, HGJ44 ~ 76, SH3406, ANSI B16.5, JIS B2212 ~ 2214. Pressure testing JB / T 9092-99, API 509. Transmission manual, worm gear, pneumatic, electric. Features: high-performance metal seated ball valves developed by our company. Seat with leaf spring-loaded metal seal structure, open and close easily at high temperatures. Ball and seat using a special hardening process, the sealing surface is not scratched. Ball has a bi-directional sealing function, size and caliber are fixed ball structure (DN15 ~ 700mm). Uses: metal seal valve suitable for Class150 ~ 1500, PN1.6 ~ 16.0MPa, operating temperature -29 ~ 425 ℃ (steel) or -40 ~ 550 ℃ (stainless steel) of various pipeline, cut off or pick through the line of medium, use of different materials, can be separately applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, ammonia, salt, and water in a variety of media. Technical Specifications: Pressure rating: Class150 ~ 1500, PN1.6 ~ 16.0MPa Nominal Diameter: DN15 ~ 700mm design and manufacture: API608, API 6D GB12237 Structure length: ANSI B16.10 GB12221 connection form: ANSI B16.5 GB9112 ~ 9131 , JB / T74 ~ 90 SH3006, HG20615 ~ 20635 pressure test: API598, ZBJ16006, GB Material: WCB, CF8, CF3, CF8M, CF3M, ZG1Cr18Ni9Ti, C4, C6L, ZG1Cr18Ni12Mo2Ti Working temperature: -40 ~ 550 ℃