SCREW TYPE FOR HYDRAULIC CYLINDERS – BALL – MQS-SC
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TECHNICAL DATA |
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SIZE |
WORKING |
RATED FLOW |
OIL SPILLAGE |
MINIMUM BURST PRESSURE |
CONNECTION / |
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DN |
inch |
Dash |
MPa |
PSI |
l/min |
US |
cc. |
cubic |
Male |
Female |
M & F |
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MPa |
PSI |
MPa |
PSI |
MPa |
PSI |
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| 6 | 1/4 | 4 | 72 | 10,440 | 11 | 2.9 | 0.4 | 0.024 | 350 | 50,750 | 310 | 44,950 | 320 | 46,400 | Allowed Max. 10 MPa* |
| 10 | 3/8 | 6 | 72 | 10,440 | 26 | 7.0 | 0.6 | 0.037 | 290 | 42,050 | 300 | 43,500 | 290 | 42,050 | Allowed Max. 10 MPa* |
| The rated flow represents the normal operating condition.The maximum recommended flow rate is equal to 1.5 times the rated flow *In one part |
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PRODUCT DESCRIPTION
• Screw-type couplings specially designed for very high static pressure applications on cylinders and hydraulic rams
• Connection and disconnection is made by screwing the sleeve and can be made with residual pressure in the line
• Connection secured on the thread between the sleeve and the male coupling
• Shut-off by ball valve provides effective hydraulic sealing
• Interchangeable with other products and widely used in the USA and Europe
• ISO 14540 compliant
MATERIAL
Female and male coupling in steel. Carbonitrided valve, springs in C98 steel, seals in NBR (other materials available on request) and back-up ring in PTFE
WORKING TEMPERATURE
-22ºF up to +230ºF (-30ºC up to +110ºC)
Specific seals available in case of higher temperatures
SAFETY FACTOR
4:1 for dynamic pressures
IMPULSE PRESSURES
10,000 cycles at 100% of the rated one (freq. 1Hz)
TEST SPECIFICATIONS
ISO 18869
| NPT | ||||
| Q05611280C | Q05510341C | |||
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Q05611280C | ||||||||||
| NPT TERMINATION ENDS TO ANSI B1.20.3 |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | ||||||||
| DN | Inch | Dash | Female coupling | Male coupling | A | B | C | D | E | F | |
| 6.3 | 1/4" | -04 | Q05611280C-04-04 | – | 1/4" NPTF | 62.4 | – | A+B-19 | ⌀30 | 21 | – |
| 10 | 3/8" | -06 | Q05611280C-06-04 | – | 1/4" NPTF | 75.6 | – | A+B-25 | ⌀35,6 | 25 | – |
| 10 | 3/8" | -06 | Q05611280C-06-06 | – | 3/8" NPTF | 75.6 | – | A+B-25 | ⌀35,6 | 25 | – |
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Q05510341C | ||||||||||
| NPT TERMINATION ENDS TO ANSI B1.20.3 |
| SIZE | PART NUMBER | THREAD | DIMENSIONS mm | ||||||||
| DN | Inch | Dash | Female coupling | Male coupling | A | B | C | D | E | F | |
| 6.3 | 1/4" | -04 | – | Q05510341C-04-04 | 1/4" NPTF | – | 32 | A+B-19 | – | – | 22 |
| 10 | 3/8" | -06 | – | Q05510341C-06-04 | 1/4" NPTF | – | 39 | A+B-25 | – | – | 27 |
| 10 | 3/8" | -06 | – | Q05510341C-06-06 | 3/8" NPTF | – | 39 | A+B-25 | – | – | 27 |