Pneumatic driven liquid pumps generate high pressures with a minimum size. The pumps work according to the differential piston principle, i.e. normal air pressure, usually up to 7 bar, is guided onto a large piston and moves a small hydraulic piston. The ratio A (area) x P (pressure) of the large piston corresponds to that of the small piston, apart from low friction losses, just like with pressure intensifiers. Air pumps offer the following advantages:
Automatic standstill after reaching the set maximum pressure
Easy integration into existing systems
No energy loss during long pressure holding times
Due to the compressed air drive they are suitable for use in explosion-proof areas
Counteracting leaks in the system
Simple activation by manual or controlled valves
Pneumatic driven liquid pumps generate high pressures with a minimum size. The pumps work according to the differential piston principle, i.e. normal air pressure, usually up to 7 bar, is guided onto a large piston and moves a small hydraulic piston. The ratio A (area) x P (pressure) of the large piston corresponds to that of the small piston, apart from low friction losses, just like with pressure intensifiers. Air pumps offer the following advantages:
Automatic stop after reaching the set maximum pressure
Easy integration into existing systems
No energy loss during long pressure holding times
Due to the compressed air drive they are suitable for use in explosion-proof areas
Counteracting leaks in the system
Simple activation by manual or controlled valves
Pneumatic driven liquid pumps generate high pressures with a minimum size. The pumps work according to the differential piston principle, i.e. normal air pressure, usually up to 7 bar, is guided onto a large piston and moves a small hydraulic piston. The ratio A (area) x P (pressure) of the large piston corresponds to that of the small piston, apart from low friction losses, just like with pressure intensifiers. Air pumps offer the following advantages:
Automaticstop after reaching the set maximum pressure
Easy integration into existing systems
No energy loss during long pressure holding times
Due to the compressed air drive they are suitable for use in explosion-proof areas
Counteracting leaks in the system
Simple activation by manual or controlled valves
Enables a lead angle of 90°. Especially suitable for limited space conditions. Elbows with identical connections on both sides are available for all common pressures. Special versions with different connections or for other pressures on request. Elbows are generally available with right-hand and/or left-hand threads.
Vibrations, frequent load changes and movements of the pipe, e.g. with pipe spirals, can cause damage to the sealing cones of the pipes and seats and the threads of the pipes to break off at their end. This does not happen with Vibrotight fittings. We also consider them more effective than sealing rings that are placed behind the collars in the gland nut or especially collars that are supposed to clamp the pipe at the same time. The reason is the separation of gland nut and clamping ring, which are also tightened with different torques.
Pressure relief valves are designed to protect a system from unpredictable pressure increases. The valves can be used for gases and liquids.
The valves are set at the factory to the desired opening pressure. However, they can be adjusted in the following ranges:
- 250 — 700 bar - 700 — 2.000 bar - 1.000 — 2.000 bar - 1.500 — 5.000 bar - 3.000 — 8.000 bar
Intermediate areas are possible on request. The valves are also available in a sealed version. We manufacture two sizes of pressure relief valves, which differ in their nominal diameter and of course also in the size of the spring.
As we prefer over bursting discs, we manufacture a particularly inexpensive valve, the cost of which is close to that of a bursting disc holder.
The bulkhead fitting usually represents the external connection of a system. Our design enables the bulkhead connection to be produced in a stable manner with very little effort. It is usually supplied with three 1mm thick washers. Depending on the wall thickness (1, 2 or 3mm) one washer is omitted. Bulkhead screw connections for other wall thicknesses, such as for polycarbonate panes, are available on request. Our bulkhead fittings are manufactured from the material 1.4542 (17–4 PH).
Check valves are valves that can be shut off on one side. They open by a higher pressure on the inlet side. Mostly supported by a spring they are closed by a poppet or a ball.
Check valves are available in several versions and allow different functions. We manufacture suitable check valves for all systems, for gases or liquids and as single or double check valves.
For special applications we manufacture unlockable check valves.
