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Q.SAFE - Quick Release Couplings
S. Frost
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Q.Safe product range
MAIN SERIES
MQS-A series

• Couplings according to ISO 7241-1 series A
  standard.

MQS-B series

• Couplings according to ISO 7241-1 series B
  standard.

MQS-N series

• Couplings for the Agricultural Interchange

MQS-F series

• Flat-face couplings according to ISO 16028
  standard

MQS-SC series

• Screw type couplings for high pressure market

MQS-V series

• Inline Check Valves

MQS-DHI series

• Q.SAFE and MF2000 join forces.

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Q.Safe product range
MQS-A series ISO 7241-1 A
¼ thru 1 Body and Thread sizes.

• It is the most widespread coupling

• ½ size is the reference coupling on
  agricultural market

• As required by ISO 5675 standard this couplings
  is used to transmit hydraulic power from tractors
  to implements. The female part must be mounted on
  the tractor and the male part on the implement.

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Q.Safe product range
MQS-B series
The standard (ISO 7241-1 and 2 series B
defines the external profile of the male part and
performances
Simple connection and disconnection by pulling
back the sleeve
Sealing system is poppet
It is the reference coupling on industrial market
Safety factor 14 for dynamic pressures and 12
for static one
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Q.Safe product range
MQS-N series

• MAIN CHARACTERISTICS
• It is the oldest series on the market
  (Parker/Pioneer 4000 series interchange).
• The external profile of the male part is similar
  to the series A, with different dimensions
• The female part allows the connection and
  disconnection by pulling back the sleeve
• The valves can be poppet or ball type
• APPLICATIONS
• Agricultural and forestry machinery
• Construction machinery
• Industry

1/2 SIZE ONLY MEETS THE REQUIREMENTS OF ISO
7241-1 SERIES A
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Q.Safe product range
MQS Product plus
BENEFIT
PLUS
INCREASE SEAL SERVICE LIVE
Increased thickness of back-up ring
REDUCE PRESSURE DROP
Internal components streamlined in shape
Internal components streamlined in shape
REDUCE PRESSURE DROP
Nipple and sleeve hardened
Three-part poppet valve with a moulded shaped seal
BRINELLING EFFECTS STRONGLY REDUCED
REDUCED RISK OF SEAL WASHOUT AT HIGH FLOW RATE
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Q.Safe product range
Q.Safe Applications
- Agricultural machinery
- Building/earth moving
- Forestry machinery

• Industrial / Plastic mfg.

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Q.Safe product range
MQS-F series ISO 16028

• MAIN CHARACTERISTICS
• The ISO 16028 standard defines the mating
  dimensions of female and male parts.
• The flush faced valves give the following main
  features to these couplings
• No fluid loss during disconnection
• Minimum inclusion of air or external
  contamination during connection
• Easy cleaning of mating surfaces
• Push to connect system (push the male part to
  connect)
• Disconnection by pulling back the sleeve

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Choose a quick coupling
PRODUCT PLUS
MQS-F series
Stem hardened to improve resistance against
pressure impulses
O-ring in truncated cone housing to prevent
extrusion
Springs in stainless steel
Stem and internal slider in high tensile steel to
improve resistance against pressure impulses
Assembling system based on Manuli design to
reduce pressure drop
Assembling system based on Manuli design to
guarantee the easiest and quickest disassembling
and maintenance
Three-part sealing device to prevent seal washout
at high flow rate
Three-part sealing device to prevent seal washout
in the event of connection or disconnection under
residual pressure
Increased thickness of back-up ring
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Choose a quick coupling
PRODUCT PLUS
MQS-F series
O-ring and back-up ring to improve resistance
against pressure impulses
Moulded shaped polyurethane seal to prevent seal
washout in the event of connection or
disconnection under residual pressure
Moulded shaped polyurethane seal to increase
resistance against wear due to dirt and dust
inclusion
Internal components streamlined in shape