BOSCH REXROTH
MG6G1X/V
R900437338
Flow Control Throttle Valves
Throttle valves: MG,MK 6.-1x/
BOSCH REXROTH
MATERIAL: R900437338
SUMMARY: Throttle valves: MG,MK 6.-1x/
Quantity in stock: 0
The valves type MG are pressure- and viscosity-dependent throttle valves.
Throttling is realized in both directions of flow. The hydraulic fluid is directed to the throttling point (4) via lateral bores (3). It is formed between the housing (2) and the adjustable sleeve (1). By rotating the sleeve (1), the cross-section of the throttling point (4) can be steplessly adjusted.
01 |
02 |
03 |
04 |
05 |
06 |
07 |
|
MG |
G |
1X |
/ |
* |
01 |
Throttle valve |
MG |
02 |
Size 6 |
6 |
Size 8 |
8 |
|
Size 10 |
10 |
|
Size 15 |
15 |
|
Size 20 |
20 |
|
Size 25 |
25 |
|
Size 30 |
30 |
|
03 |
For threaded connection |
G |
04 |
Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) |
1X |
Corrosion resistance (outside) |
||
05 |
None (valve housing primed) |
no code |
Improved corrosion protection (240 h salt spray test according to EN ISO 9227) |
J3 |
|
Improved corrosion protection (720 h salt spray test according to EN ISO 9227) |
J5 |
|
Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") |
||
06 |
NBR seals |
no code |
FKM seals |
V |
|
07 |
Further details in the plain text |
* |
Notice:
For valve types for use in potentially explosive areas, refer to data sheet 07011.
general
Size |
6 | 8 | 10 | 15 | 20 | 25 | 30 | ||
Weight |
kg |
0.3 | 0.4 | 0.7 | 1.1 | 1.9 | 3.2 | 4.1 | |
Installation position |
any | ||||||||
Ambient temperature |
NBR seals |
°C |
-30 … +80 | ||||||
FKM seals |
°C |
-20 … +80 |
hydraulic
Size |
6 | 8 | 10 | 15 | 20 | 25 | 30 | ||
Maximum operating pressure |
bar |
315 | |||||||
Maximum flow |
See characteristic curves | ||||||||
Leakage flow 1) |
Standard |
l/min |
0.8 | 1 | 2 | 3 | 4 | 5.5 | |
Version "J3" and "J5" |
l/min |
1.6 | 2.5 | 3.2 | 3.5 | 7 | 7.7 | ||
Hydraulic fluid |
see table "Hydraulic fluid" | ||||||||
Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 | ||||||
FKM seals |
°C |
-20 … +80 | |||||||
Viscosity range |
mm²/s |
10 … 800 | |||||||
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) |
Class 20/18/15 | ||||||||
Load cycles |
million |
10 | 2 |
1) | If valve is completely closed |
2) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
Data sheet |
|
Mineral oils |
HL, HLP |
NBR, FKM |
DIN 51524 |
90220 |
|
Bio-degradable 1) |
Insoluble in water |
HETG |
FKM |
ISO 15380 |
90221 |
HEES |
FKM |
||||
Soluble in water |
HEPG |
FKM |
ISO 15380 |
||
Flame-resistant |
Water-free |
HFDU (glycol base) |
FKM |
ISO 12922 |
90222 |
HFDU (ester base) 1) |
FKM |
||||
HFDR |
FKM |
||||
Containing water 1) |
HFC (Fuchs Hydrotherm 46M, Fuchs Renosafe 500, Petrofer Ultra Safe 620, Houghton Houghto Safe 620, Union Carbide HP5046) |
NBR |
ISO 12922 |
90223 |
|
Important information on hydraulic fluids: For more information and data on the use of other hydraulicfluids, please refer to the data sheets above or contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature. Flame-resistant - containing water: Maximum pressure differential 210 bar, otherwise, increased cavitation erosion Life cycle as compared to operation with mineral oil HL, HLP 30 … 100%. Maximum hydraulic fluid temperature 60 °C Bio-degradable and flame-resistant – containing water: If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system. |
1) | Not recommended for corrosion-protected version "J3" and "J5" (contains zinc) |
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves via open throttle
Δp-qV characteristic curves via open throttle
Type MG
Dimensions in mm
1 |
Valve marking on key face |
NG |
D1 |
ØD2 |
L |
SW1 |
SW2 |
T |
mm |
mm |
mm |
mm |
mm |
||
6 | G1/4 | 34 | 65 | 22 | 32 | 12 |
8 | G3/8 | 38 | 65 | 24 | 36 | 12 |
10 | G1/2 | 48 | 80 | 30 | 46 | 14 |
15 | G3/4 | 58 | 100 | 41 | 55 | 16 |
20 | G1 | 72 | 110 | 46 | 70 | 18 |
25 | G1 1/4 | 87 | 130 | 55 | 85 | 20 |
30 | G1 1/2 | 93 | 150 | 60 | 90 | 22 |