The pressure injection pump Type DP 40 PU is a pneumatically driven, single acting piston pump that operates after the pressure intensification principle. The area ratio of drive pressure to pressure piston ring area yields the pressure ratio which is 41:1 in type DP 40 PU pumps. The pump consists of a pneumatically actuated drive part and a high-pressure part. Drive part and high-pressure part are linked with a piston rod. Two parallel high-pressure pistons are arranged at the end of the piston rod and are connected via a yoke. Thus, the drive and high-pressure parts are isolated and it is prevented that pump medium gets into the pneumatic drive part in case of leakages in the high-pressure sealing. The piston rods are of high-tensile stainless steel and boast long service lives. The valve seats are of tempered steel and the sealings of wear resistant UHMW-PE. Application: The PERFORATOR DP 40 PU pump is a robust constructed Injection pump for high flow rates and pressures, which is generally used as pipeline-pump. The pump can handle most materials on a polyurethane base with a mix ration of 1:1. Technical Data: Air drive pressure Max. operating pressure at 5 bar inlet pressure Pressure ratio Suction connection Stroke volume per double stroke Pressure outlet Polyurethan Silicate resin Max. flow rate ca. 25 l/min on free outlet For information of flow rates at the different pressure stages please refer to the performance graph. Air piston diameter 300 mm High-pressure piston diameter 33 mm Dimensions Height 490 mm Width 470 mm Length 940 mm Within the specified technical features and performance data, engineering and design of our products are subject to change. To all products and services our general terms and conditions, incl. Product liability, apply exclusively. (Perforator, Technical Data Sheet DP40PU, Rev. 01/ 2012)

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