• Approx. 3-6 times stiffer compared to systems with capillary chokes

• Clear lower flow rate, thereby clear lower Energy input

• Purely mechanical diaphragm regulator, therefore very reliable and inexpensive
• Very fast control and without hysteresis

• Stiffness and gap changes not with the oil temperature and oil viscosity

Properties:

• Virtually wear-free and hysteresis-free due to practically purely elastically operating regulating choke
• Relatively insensitive to soiling due to throttle gap with large rectangular cross-section or control throttle with a certain self-cleaning effect
• Excellent dynamic behavior due to minimal control travel, low masses to be accelerated and large actuating forces
• If the recommended installation position of the series PM controller is observed, it is self-venting
• Low space requirement
• Low weight, the controllers are mainly made of aluminum
• Corrosion-resistant, the liquid to be controlled only comes into contact with hard-anodized aluminium and the stainless steel diaphragm
• If the differential pressure on the diaphragm is unacceptably high, it is supported by support points on a spherical surface on the regulator housing, so that damage or even destruction of the diaphragm is largely ruled out
• With the PM regulator, pocket pressures of up to approx. 90 % of the pump pressure can be utilized – without a reserve