BiAir®-ED/-HE/-HE-MAX

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BiAir®-ED/-HE/-HE-MAX – Membrane air spring insulator in cast aluminium

Bilz BiAir® Membrane air springs are available in many different sizes, depending on your application. The natural frequencies of the type series ED / ED-HE and ED-HE-MAX in cast aluminium are:

 

Typevertical natural frequency (approx.)horizontal natural frequency (approx.)
BiAir®-ED2.5 Hz2.8 Hz
BiAir®-ED-HE1.7 Hz2.8 Hz
BiAir®-ED-HE-MAX1.2 Hz2.8 Hz

 

We would be happy to advise you. Here you can find your contact person.

All information can be found in our catalog excerpt “BiAir® Membrane Air Springs” (PDF).

 

 

Details (technical data)

Note

Please note the details under “General information“.

 

Natural frequency vertical approx. 2.5 Hz (ED) / 1.7 Hz (ED-HE) / 1.2 Hz (ED-HE-MAX), horizontal (all types) approx. 2.8 Hz

 

Garfik BiAir Aluminiumguss

 BiAir®-ED/-HE/-HE-MAX

Type
Ø A

mm		B

mm		Ø C

mm		Working height H
BiAir-ED
mm		Working height H
BiAir-ED-HE
mm		Working height H
BiAir-ED-HE-MAX
mm		+/- travel

mm		max. load N** at an air pressure of 4 barmax. load N** at an air pressure of 6 bar
0,5120216129157307-+/- 2.52,6704,000
1172*288200157307509+/- 2.56,3309,500
1,5212*305230157307509+/- 3.510,17015,260
2226*335260157307509+/- 2.514,20021,300
2,5271*378300157307509+/- 3.019,67029,500
3348*467382157307509+/- 2.534,13051,200
4490605530157307509+/- 2.7565,73098,600
5-ED747875798157--+/- 3.5155,730233,600
5-ED-HE-MAX728960880--509+/- 3.5155,730233,600
* For the sizes 1 to 3 of series ED-HE-MAX the Ø A is the same as Ø C (piston diameter).
** Please choose an air pressure of 4 bar when selecting the size of the air spring.

 

Accessories

Mechanical pneumatic level control MPN

A simple, but effective and precise solution is the mechanical pneumatic proportional valve MPN-PVM. The level is continuously sensed using the plunger. The position of the plunger is directly applied to the slide valve and the air spring is either pressurized or vented.

At least three air springs are controlled. If more insulators are required due to reasons of design or load, the system must still be worked in three controlled groups, as otherwise the system is statically overdetermined. This is achieved by using multiple insulators in parallel as a group. An additional air maintenance unit is installed upstream of the control valves to prepare the compressed air.

MPN-LCVMPN-PVM

Faebi Niveauregelung Ventil

PVM Ventil
Very robust galvanised proportional valve.
Level accuracy is approximately ± 1/10 mm.		High-precision chromed proportional valve.
Level accuracy is ± 1/100 mm.

Electronic pneumatic level control (Electronic-Pneumatic Position Control) EPPC™

Details regarding the BiAir® Membrane air springs with electronic pneumatic level control can be found in chapter EPPC™

eppc

 

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