Location of Serial Number
Serial number is of the format "A1234567890"
Serial Number can also be found under the electronics panel cover
BRAKING CIRCUIT VALVE – MQS-VB
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TECHNICAL DATA |
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|
SIZE |
WORKING |
RATED FLOW |
CONNECTION |
OIL SPILLAGE |
MINIMUM BURST PRESSURE |
CONNECTION / |
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|
DN |
inch |
Dash |
MPa |
PSI |
l/min |
US |
N |
lb. |
cc. |
cubic |
Male |
Female |
M & F |
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|
MPa |
PSI |
MPa |
PSI |
MPa |
PSI |
||||||||||||
| 12 | 1/2 | 8 | 15 | 2,175 | 31 | 8.2 | 110 | 22.4 | 0.02 | 0.001 | 130 | 18,850 | 60 | 8,700 | 130 | 18,850 | Not allowed |
| The rated flow represents the normal operating condition. The maximum recommended flow rate is equal to 1.5 times the rated flow | |||||||||||||||||
PRODUCT DESCRIPTION
• Trailer brake coupling specially designed to connect the hydraulic braking system of tractors to trailers
• Connection and disconnection by pulling back the sleeve
• Positive connection by latching balls system
• Shut-off by flat valve
• The male has to be placed on the tractor and the female on the implement
• Interchangeable according to ISO 5676
MATERIAL
Female and male coupling in steel, with some stressed tempered areas. Carbonitrided valve and sleeve, springs in C98 steel, seals in NBR and back-up ring PTFE
WORKING TEMPERATURE
-22ºF up to +230ºF (-30ºC up to +110ºC)
SAFETY FACTOR
4:1 for dynamic pressures
TEST SPECIFICATIONS
ISO 18869
| BSP | ||||
| Q04811041A | Q04711050A | Q04711041A | Q04711040A | |
 |
Q04811041A | ||||||||||
| BSP TERMINATION ENDS TO DIN 3852 X TYPE |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Female coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04811041A-08-06 | 3/8" | 55,5 | ⌀44 | 32 | |||
| 12.5 | 1/2" | -08 | Q04811041A-08-08 | 1/2" | 56,5 | ⌀44 | 32 | |||
 |
Q04711050A | ||||||||||
| BSP TERMINATION ENDS TO ISO 8434-6 |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||
| DN | Inch | Dash | Male coupling | A | B | |
| 12.5 | 1/2" | -8 | Q04711050A-08-08 | 1/2" | 48 | 32 |
 |
Q04711041A | ||||||||||
| BSP TERMINATION ENDS TO DIN 3852 X TYPE |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04711041A-08-08 | 1/2" GAS | 57 | 32 | 16 | |||
 |
Q04711040A | ||||||||||
| BSP TERMINATION ENDS TO ISO 8434-6 BULKHEAD |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04711040A-08-08 | 1/2" | 70.8 | 32 | 35 | |||
| METRIC | ||||
| Q04811141A | Q04711370A | Q04711110A | Q04711770A | Q04711770A |
| Q04711770B | Q04711770B | |||
|
Q04811141A | ||||||||||
| METRIC TERMINATION ENDS TO DIN 3852 X TYPE |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Female coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04811141A-08-18 | M18x1,5 | 55,5 | ⌀44 | 32 | |||
 |
Q04711370A | ||||||||||
| METRIC TERMINATION ENDS TO DIN 3863 BULKHEAD |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04711370A-08-22 | M22x1,5 | 65 | 32 | 37 | |||
 |
Q04711110A | ||||||||||
| METRIC TERMINATION ENDS TO ISO 8434-1 L SERIES |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||
| DN | Inch | Dash | Male coupling | A | B | |
| 12.5 | 1/2" | -08 | Q04711110A-08-18 | M18x1,5 | 65 | 32 |
| 12.5 | 1/2" | -08 | Q04711110A-08-22 | M22x1,5 | 64.7 | 32 |
 |
Q04711770A | ||||||||||
| METRIC TERMINATION END TO ISO 8434-1 BULKHEAD |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | D | |||
| 12.5 | 1/2" | -08 | Q04711770A-08-16 | M16x1.5 | 52.5 | 32 | 24.5 | M20x1.5 | ||
| 12.5 | 1/2" | -08 | Q04711770A-08-18 | M18x1.5 | 52 | 32 | 24 | M20x1.5 | ||
|
Q04711770A | ||||||||||
| METRIC TERMINATION END TO ISO 8434-1 BULKHEAD L SERIES |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04711770A-08-22 | M22x1,5 | 63 | 32 | 35 | |||
 |
Q04711770B | ||||||||||
| METRIC TERMINATION END TO ISO 8434-1 BULKHEAD L SERIES |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04711770B-08-22 | M22x1,5 | 82 | 32 | 28 | |||
 |
Q04711820A | ||||||||||
| METRIC TERMINATION END BULKHEAD |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | D | |||
| 12.5 | 1/2" | -08 | Q04711820A-08-20 | M20x1,5 | 51 | 32 | 23 | ⌀13,5 | ||
| SAE | ||||
| Q04711300A | Q04711250A | Q04711230A | ||
 |
Q04711300A | ||||||||||
| SAE TERMINATION END TO SAE J1926-3 |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||
| DN | Inch | Dash | Male coupling | A | B | |
| 12.5 | 1/2" | -08 | Q04711300A-08-08 | 3/4"-16 UNF | 50 | 32 |
 |
Q04711250A | ||||||||||
| SAE TERMINATION ENDS TO ISO 8434-2 |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||
| DN | Inch | Dash | Male coupling | A | B | |
| 12.5 | 1/2" | -08 | Q04711250A-08-08 | 3/4"-16 UNF | 89.5 | 32 |
 |
Q04711230A | ||||||||||
| SAE TERMINATION ENDS TO ISO 8434-2 BULKHEAD |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | |||||||
| DN | Inch | Dash | Male coupling | A | B | C | ||||
| 12.5 | 1/2" | -08 | Q04711230A-08-10 | 7/8"-14 UNF | 94.8 | 32 | 40.1 | |||