VT - Valve Technology AG

Xavitech enables constant flow for gas sampling systems

Thu, 30 Aug 2007 00:00:00 +0200

Through intelligent control algorithms and careful analysis of the pump action, Xavitech® has introduced a real-time flow-regulation function into their pumps.

Through intelligent control algorithms and careful analysis of the pump action, Xavitech® has introduced a real-time flow-regulation function into their pumps. In the flow figure to the right, the black line show typical flows for different loads at 5 V. The two grey lines show the performance with two different constant flow functions; method 1(see picture)has the advantage of standing higher loads whereas method 2(see picture) has the benefit of consuming less current.

The constant flow regulation is not only unique in itself, but also it contains the important feature of maintaining a constant flow for various input voltages. The pump can of course be adjusted to maintain a flow at a specific level, dependent on the customer request. The respective method to be used is chosen to suit the customer the best.

Datasheet

Xavitech eliminates voltage regulators and thereby their power loss

Thu, 30 Aug 2007 00:00:00 +0200

One very important feature with the intelligent control system is that for any applied voltage, the system recognizes and changes the effective power down to the necessary level.

One very important feature with the intelligent control system is that for any applied voltage, the system recognizes and changes the effective power down to the necessary level. As a consequence, the current used is always minimal and not voltage dependent. The customer will reduce their costs since there is no need for a linear regulator nor an additional cooling device in their system to counteract the effect of excessive power from regulators. In addition, a battery voltage, which decreases with time, can drive a pump from Xavitech and yet the pump will perform the same. Ask for linear power function.

The figure to the right shows that the flow is close to constant even though the voltage changes in the range 4.5 V to 16 V. Shown are two cases (no load and 30 mbar load) and how the flow can maintain at the same level by adjusting the pump to a low or high voltage condition. The respective setting are simply chosen according to what best fulfils the requirements of the customers� systems.

Datasheet

Xavitech releases new technologies

Thu, 24 May 2007 15:14:55 +0200

Xavitech® is a Swedish company that designs, manufactures, and distributes small diaphragm pumps. At the moment, Xavitech® has two patents recognizing new and improved technology within the field.

In comparison to the pumps of the competitors, Xavitech® pumps are characterized by long lifetime, small size, low power consumption, and the possibility to adjust the performance by use of an intelligent control system.

Read more about the new pump: V1500-GAS