EGP with 2nd ride height

EGP 2nd ride height.png

The benefit of a EGP standard levelling valve, with a 2nd ride height control.

Below a complete technical description of the product

Installation - Inspection - Maintenance - Technical data - Sectional Drawing - Symbol - Type chart (Flow)

Installation

The 2nd ride height can be set in accordance of the respective angle (Deflection) of each valve. The angle here refers to the deflection of the control lever from the horizontal, in degrees. The body height changes (mm) as a function of the lever length; see chart “2nd ride height”.

2ndrideheightpicture1.png

Chart for 2nd ride height

 

Linkage distance (mm)

60

80

100

120

140

160

180

200

220

240

260

280

300

320

Height change (mm) for α = 10°

10

14

17

21

24

28

31

35

38

42

45

49

52

56

Height change (mm) for α = 16°

17

22

28

33

39

44

50

55

61

66

72

77

83

88

Height change (mm) for α = 20°

21

27

34

41

48

55

62

68

75

82

89

96

103

109

Height change (mm) for α = 35°

34

46

57

69

80

92

103

115

126

138

149

161

172

184

 

Example:

Using a levelling valve with 2nd ride height @16°, and lever length=220mm

Ride body height = 1210mm

2nd ride height = 1210+61 = 1271mm

Inspection

  • Test for operation and leaks.
  • The pressure should neither rise nor fall at the delivery ports in the neutral position.
  • Check the linkage moves freely and is in good condition, replace if bent or welded.
  • Replace hardened or brittle rubber parts.

Maintenance

  • If defects are noted during vehicle examinations or when driving, then the unit should be exchanged.
  • When working with high pressure cleaners a distance of at least 50 cm should be observed.
  • Missing exhaust caps are to be renewed.

Technical data

   
Medium Air
Operating pressure, dynamic 13 bar
Max. permissible bellow pressure 20 bar
Working range (charging / discharging) 45°
Thermal range of application - 45° ... + 85°C
Operating side left and right
Tightening torque ports (thread M12x1.5) 12 - 15 Nm
Tightening torque for fixing the body 20 - 22 Nm
Tightening torque for fixing
the linkage (wrench size 10)
8 Nm
By rotating the linkage around 180° 
the same function will be achieved 
within a tolerance
1st ride height 3.5°
2nd ride height 4.5°
Dead angle at p1 = 8 bar, p2 = 7 bar 1st ride height 2°
2nd ride height 3.5°
Ports 1
Supply
Ports 21, 22
Delivery
Port 3 Exhaust
Port 4 Control

Sectional drawing

1 - Reservoir

21,22 - Suspension

3 - Exhaust

4 - Control

2ndridesectionnal.png

Symbol

DIN 74253

Type chart (flow)

The Type chart shows the air flow depending the angle of the lever. The higher the type number is (internal diameter of the valve) the higher air flow rate is reached. The curve profil is also important, as they are more or less progressive in the range 0° to 20° angle.

Levelling valves Type charts.JPG