AGRICULTURAL VALVES – MQS-VS

TECHNICAL DATA

SIZE

WORKING
PRESSURE
Dynamic

RATED FLOW
at 0.2 MPa of
pressure drop

OIL SPILLAGE
Connection /
Disconnection

MINIMUM BURST PRESSURE

CONNECTION /
DISCONNECTION
UNDER
PRESSURE

DN

inch

Dash

MPa

PSI

l/min

US
GPM

cc.

cubic
inch

Male

Female

M & F

MPa

PSI

MPa

PSI

MPa

PSI

12 1/2 8 20 2,900 34 9 0.02 0.001 130 18,850 80 11,600 140 20,300 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 breaking system of tractors to trailers
• Connection and disconnection by screwing the sleeve
• Connection secured on the thread between the sleeve and the male coupling
• Flat-valve
• Connection and disconnection under pressure allowed
• The male has to be placed on the tractor and the female on the implement
• Interchangeable with similar products available on the market

MATERIAL

Female and male coupling in steel, with hardened stressed areas. Carbonitrided valve, springs in C98 steel, seals in NBR and backup ring PTFE

WORKING TEMPERATURE

-22ºF up to +230ºF (-30ºC up to +110ºC)

SAFETY FACTOR

4:1 for dynamic pressures

TEST SPECIFICATIONS

ISO 18869

REMARKS

Safety cap for male coupling and female coupling with parking included

BSP
Q04911050A Q04911041A Q04911250A
Q04911050A
BSP TERMINATION ENDS
TO ISO 8434-6
SIZE PART NUMBER THREAD DIMENSIONS mm
DN Inch Dash Male coupling A B
12.5 1/2" -08 Q04911050A-08-08 1/2" GAS 48 36

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Q04911041A
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 Q04911041A-08-08 1/2" BSP 57 36 16

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Q04911250A
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

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METRIC
Q05011141A Q04911820A Q04911370A Q04911110A Q04911770A
Q04911770A Q04911770B
Q05011141A
METRIC TERMINATION ENDS
TO DIN 3852 X TYPE
SIZE PART NUMBER THREAD DIMENSIONS mm
DN Inch Dash Female coupling A B C D
12.5 1/2" -08 Q05011141A-08-18 M18x1,5 53.5 ⌀45 27 41

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Q04911820A
METRIC TERMINATION ENDS
BULKHEAD
SIZE PART NUMBER THREAD DIMENSIONS mm
DN Inch Dash Male coupling A B C D
12.5 1/2" -08 Q04911820A-08-20 M20x1,5 51 36 23 ⌀13,5

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Q04911370A
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 Q04911370A-08-22 M22x1,5 65 36 37

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Q04911110A
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 Q04911110A-08-18 M18x1,5 65 36
12.5 1/2" -08 Q04911110A-08-22 M22x1,5 64.7 36

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Q04911770A
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 Q04911770A-08-16 M16x1,5 52.5 36 24.5 M20x1.5
12.5 1/2" -08 Q04911770A-08-18 M18x1,5 52 36 24 M20x1.5

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Q04911770A
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 Q04911770A-08-22 M22x1,5 63 36 35

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Q04911770B
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 Q04911770B-08-22 M22x1,5 82 36 28

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SAE
Q04911300A Q04911230A
Q04911300A
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 Q04911300A-08-08 3/4"-16 UNF 50 36

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Q04911230A
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 Q04911230A-08-10 7/8"-14 UNF 94.8 36 40.1

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