Apparatus for regulating the passage and flow-rate of a liquid

Apparatus for simultaneously pumping a plurality of liquids

Coating material supply device

Compact twin piston pump

Concrete pumping apparatus

Concrete-pumping device

Constant-flow-rate dual-unit pump

Continuous extrusion apparatus

Control arrangement for a two-cylinder pump for thick materials

Control system for a two-cylinder thick matter pump

Control system for piston pumps

Diaphragm pump

Dosing system

Drilling fluid pump providing a uniform, controlled pressure and

Dual-rigid-hollow-stem actuators in opposite-phase slurry pump d

Duplex hydraulic and air oil well pump

Dynamic cooler apparatus for molten thermoplastic material

Energy conserving air pump

Engine apparatus

Fluid-driven reciprocating apparatus and valving for controlling