Spindle pumps are suitable for generating high static liquid pressures in smaller volumes. Manually operated spindle pumps allow pressures to be applied very precisely without slip-stick effect. The spindle pumps are very reliable. Many customers have been operating our spindle pumps for decades without changing the seals.
Our manual spindle pumps cover pressure ranges up to 16.000 bar. All parts in contact with the medium are made of stainless steel. These spindle pumps are also available with stepper motor drive, pneumatic drive and as functional systems.
Suitable dies for cutting threads on high-pressure pipes and the taps for screw connections are available from us. We also offer the necessary cutting and lubricating materials.
Electric spindle pump 3000 bar, 2 liter stroke volume (left) in a fully automatic system of a cold isostatic pressing
Servomotor drive of the spindle pump; 1.45 kW rated power at 3000 rpm
5500 bar spindle pump
Recirculating ball screw installed in a spindle pump
Spindle pumps are suitable for generating high static gas and liquid pressures. Motor-driven spindle pumps can start up pressures very precisely without slip-stick effect. The operation develops only low noise.
Our spindle pumps cover pressure ranges up to 16,000 bar. The parts in contact with the medium are made of stainless steel.
Spindle pumps can be supplied with stepper motors or synchronous motors. Usually the drive is provided by a stepper or servo motor and a ball screw.
The motor and the gear are selected according to the desired flow rate and the desired operating pressure. Of course, the control system can also be provided.
Our metric gland nuts have a notch on the hexagon for identification, our inch ones have two notches. The inner geometry is identical to that of the larger American manufacturers, so that their collars can also be used. Our gland nuts are manufactured from 1.4401.
In contrast to those of our competitors, the collars we manufacture have key flats on the outer casing. This makes it easier to assemble and disassemble the collars using a wrench. Our collars are interchangeable with almost all common high-pressure fittings. Furthermore, our collars are made of 1.4404.
Since May 2002, only pressure equipment that meets the requirements of the Pressure Equipment Directive (PED) may be placed on the market throughout the European Union.
The directive specifies the essential safety requirements for pressure equipment and describes the procedures for assessing conformity with the PED.
Each pressure vessel is subjected to a conformity assessment described in accordance with the PED before it is put into operation. Autoclaves in accordance with foreign regulations, e.g. ASME, are also available.
We offer pressure vessels in all pressure ranges up to 14,000 bar. Technical details, such as the sealing system, are designed by us according to the operating conditions (medium, temperature, etc.).
Accessories: heaters, stirrers, shakers, linings and other extensions are available on request.
Safety heads are overpressure safety devices which can be used for almost all pressures in our range. The advantages are a relatively low price, a small size and a delay-free response.
The disadvantages in contrast to pressure relief valves are that the burst pressure must be at least 30% above the operating pressure. In systems requiring acceptance, the permissible operating pressure must correspond to the burst pressure of the system. This entails considerable additional costs. A new safety head must be inserted after each response. Even at normal operating pressure, the safety heads can burst after some time due to fatigue. We have therefore endeavoured to manufacture pressure relief valves at costs in the order of magnitude of safety heads.
