The pressure injection pump GX 45 PU is a pneumatically driven, single acting piston pump, operating acc. to the pressure intensification principle. The area ratio of drive pressure to pressure piston ring area shows the pressure ratio which is 45:1 for GX 45 PU pumps.
The pump consists of a pneumatically actuated drive part and a high pressure part, which are connected by a plun- ger. Two parallel fitted high-pressure pistons at the end of the plunger are connected via yoke. Thus, the drive and high pressure parts are isolated, which prevents that pump medium could get into the pneumatic drive part in case of leakages of the high-pressure sealing.
The plunger is made of high-tensile stainless steel and is distinguished by long service life. The valve seats are of tempered steel and the gaskets are of wear-resistant PTFE.
Application: The GX 45 PU is a compact injection pump with small dimensions and low weight, but with a high flow rate. It is mainly used as pipeline pump to supply injection fluids on Polyurethane basis and in a mixing ratio of 1:1 from gate road to longwall face.
|Air drive pressure||1-5 bar / 14,5-72psi||Connections|
|Max. operating pressure at 5 bar inlet pressure||225 bar / 3263psi||Air connection||RD 32 x 1/8|
|Pressure ratio||45:1||Suction connection||RD 32 x 1/8|
|Stroke volume per double stroke||148 cm³ / 9inch³||Pressure outlet||Steck- O DN 10|
|Max. operating temperature||60°C||Weight||ca. 82 kg|
|Liquids||Polyurethan Silicate resin|
|Max. flow rate||ca. 18 l/min on free outlet|
|For information of flow rates at the different pressure stages please refer to the performance graph.|
|Air piston diameter||200 mm|
|High-pressure piston diameter||30 mm|