The pressure injection pump Type S 35 PU is a pneu- matically driven, single acting piston pump that operates after the pressure intensification principle. The area ra- tio of drive pressure to pressure piston ring area yields the pressure ratio which is 34:1 in type S 35 PU pumps.

The pump consists of a pneumatically actuated drive part and a high-pressure part. Drive part and high-pres- sure 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 seal- ings of wear resistant PTFE.

Application: The S 35 PU Injection pump is especially designed for smaller companies with the focus on the refurbishment of buildings.

The pump can handle most of the common injection materials with a mix ration of 1:1.

Technical Data:
Air drive pressure1-6 bar / 14,5-87psiConnections
Max. operating pressure at 5 bar inlet pressure170 bar / 2465psiAir connectionRD 32 x 1/8“
Pressure ratio34:1Suction connectionRD 32 x 1/8“
Stroke volume per double stroke34cm³ / 2,07inch³Pressure outletSteck-O DN10
Max. operating temperature60°CWeightca. 28 kg
LiquidsPolyurethan Silicate resin
Max. flow rateca. 5,5 l/min on free outlet
For information of flow rates at the different pressure stages please refer to the performance graph.
Air piston diameter125 mm
High-pressure piston diameter15 mm
DimensionsHeight320 mm
Width200 mm
Length630 mm


Inquiry Form

WhatsApp chat