Name: BiAir®-ED/-HE/-HE-MAX
Price: 1.00 EUR
Availability: InStock

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:

Type	vertical natural frequency (approx.)	horizontal natural frequency (approx.)
BiAir^®-ED	2.5 Hz	2.8 Hz
BiAir^®-ED-HE	1.7 Hz	2.8 Hz
BiAir^®-ED-HE-MAX	1.2 Hz	2.8 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

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 bar	max. load N** at an air pressure of 6 bar
0,5	120	216	129	157	307	-	+/- 2.5	2,670	4,000
1	172*	288	200	157	307	509	+/- 2.5	6,330	9,500
1,5	212*	305	230	157	307	509	+/- 3.5	10,170	15,260
2	226*	335	260	157	307	509	+/- 2.5	14,200	21,300
2,5	271*	378	300	157	307	509	+/- 3.0	19,670	29,500
3	348*	467	382	157	307	509	+/- 2.5	34,130	51,200
4	490	605	530	157	307	509	+/- 2.75	65,730	98,600
5-ED	747	875	798	157	-	-	+/- 3.5	155,730	233,600
5-ED-HE-MAX	728	960	880	-	-	509	+/- 3.5	155,730	233,600

* 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-LCV	MPN-PVM

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