高壓齒輪泵  製造商、經銷商、供應商

WITTE offers pumps for applications in borderline areas. We develop durable, standardised or customised solutions of the highest precision. For more than 35 years WITTE has specialised in the development of gear pumps for industrial applications. It is our endeavour to always guarantee the customer the highest level of process reliability and to match the pumps exactly to the application and the process. In this way we guarantee the best efficiency and durability of our pumps. Reduced maintenance costs and intervals due to matched material pairings guarantee a fast payback the investment costs. We have been working successfully for many years with well-known companies and innovation drivers from the industry and are constantly developing new solutions. Should we not have the right solution at hand, we develop together with our customers the suitable product. We accompany our customers during the entire project from the prototype to the final product. Experts from sales, project management and design form the project and development team and keep us informed of the project status at all times. More than 35 years of experience and the knowledge of our competence team flow into each of our pumps.

殼    體
耐熱碳鋼，如1.6582，不鏽鋼，如1.4313，可帶塗層
齒    輪
工具鋼、滲氮鋼、特種鋼，可帶塗層。齒形為斜齒、人字齒（用於出口壓力脈動特別低的工況）
滑動軸承
銀鎳合金、銅鋁合金、工具鋼、特殊材料，可帶塗層
軸    封
螺旋密封、填料密封、（真空螺旋密封）
加熱係統
液相（導熱油）或汽相（蒸汽）
運行參數
粘    度
≤40,000Pa.s
溫    度
≤350°C (660°F)
入口壓力
真空到最大120bar (1740 psig)
壓    差
≤250 bar (3225 psig)
以上數值為最大允許值，在某些情況下不能同時達到
規    格
從22/22 (4.7毫升/轉 – 10公斤/小時) 到280/280 (12,000 毫升/轉 – 30,000 公斤/小時)

應用實例
聚合物
PET • PBT • PA • PC • PS • SAN • ABS • HIPS • PP • POM • Biopolymers
螺旋密封（VS）
螺旋密封是威特EXTRU泵和BOOSTER泵的標準軸密封。適用於高粘物料和高入口壓力的動密封，它可帶加熱或冷卻夾套。動密封適用於高溫高壓，它隻適用於入口為正壓及粘度大於10Pa.s的物料。如果需要，物料的粘度可以通過輔助的冷卻係統來提高。
最高溫度: 450°C (850°F)
粘度: 10,000 ~ 40,000,000 mPas (cP)
填料函密封
填料函密封是威特泵的簡單的靜密封。也可增加密封液係統。其適用性類似螺旋密封。標準的填料材料為帶增強柔性纖維的膨脹石墨，但也可選用其他材料。
最高溫度: 350°C (660 °F)
粘度: 最高到40,000,000 mPas (cP)