The high-viscosity gear pumps produced by Shanghai Yide Industrial Development Co., Ltd. work well. The CW(R2) series of high-viscosity gear pumps are ideal pumping devices for polymers under conditions of high temperature, high pressure, and high viscosity, and they have been designated as key projects for research and development by Sinopec. It has been successfully applied in production lines capable of producing 5,000 tons of HIPS per year, 15,000 tons of SAN, 500 tons of SMA, 300 tons of K-resin, and 500 tons of bulk ABS, making it an ideal device for replacing imported equipment. Operating conditions: Viscosity: up to 20,000 Pa•S (20,000,000 cP). Temperature: up to 350 ℃ (662 ℉). Inlet pressure: from vacuum to 10 bar (145 psia). Outlet pressure: up to 250 bar (3,625 psia). The 25MPa CW(R2) series of high-viscosity gear pumps are ideal pumping devices for polymers under conditions of high temperature, high pressure, and high viscosity; they are considered key projects for research and development by Sinopec. It has been successfully applied in production lines capable of producing 5,000 tons of HIPS per year, 15,000 tons of SAN, 500 tons of SMA, 300 tons of K-resin, and 500 tons of bulk ABS, making it an ideal device for replacing imported equipment. Operating conditions: Viscosity: up to 20,000 Pa•S (20,000,000 cP). Temperature: up to 350 ℃ (662 ℉). Inlet pressure: from vacuum to 10 bar (145 psia). Outlet pressure: up to 250 bar (3,625 psia) or 25 MPa (1 bar = 10^5 Pa). The speed of the gear pump is determined by the operating conditions, such as viscosity, inlet and outlet pressures, as well as the properties of the product. Key technical parameters: Pump model, Displacement (cm3/revolution), Main dimensions (mm), Weight (kg): A B C D. CW(R2)-45: 46, 315, 125, 50; 260, 60. CW(R2)-56: 73, 310, 130, 62; 320, 110. CW(R2)-70: 176, 380, 175, 80; 350, 160. CW(R2)-90: 371, 450, 200, 100; 400, 260. CW(R2)-110: 716, 520, 250, 125; 430, 360. CW(R2)-140: 1,482, 584, 300, 150; 530, 600. CW(R2)-180: 3,200, 730, 400, 200; 640, 1,200. CW(R2)-224: 6,108, 915, 500, 250; 770, 2,120. CW(R2)-280: 11,800, 1,150, 600, 300; 960, 4,600. Last edited by 921027abcd on 2008-1-22 09:06.]