Mounting couplings

Coupling halves with valve female 10/08/5781 1/2'' SAE

Order No.: 721.3304
Manufacturer number: 5781-8-10
Manufacturer: Aeroquip

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Description

By prefilling the units with refrigerant, on site installation is made easier, faster and more reliable. The design of the coupling is almost 100% reliable at preventing air becoming trapped or refrigerant being lost when connecting the components together to ensure optimum flow characteristics. Once screwed together, the metal/metal seal between the coupled halves guarantees a perfectly sealed connection for the lifetime of the system.

Assembly

  1. If necessary, clean the threads on both halves of the coupling with a clean cloth in order to prevent dirt and moisture from getting into the system.

  2. Lubricate the thread, membranes and rubber seal on the male half with refrigerant oil. Screw on the cap nut by hand until securely caught in the thread and tighten with two perfectly fitting or adjustable spanners until you feel definite resistance.

  3. Axially mark hexagon bolt and bulkhead wall as well as counter cap nut and further tighten the cap nut until the markings are positioned 1/4 turn (approx. 90°) apart. This ensures a leakproof metallic connection between both halves of the coupling. The coupling is sealed.

By prefilling the units with refrigerant, on site installation is made easier, faster and more reliable. The design of the coupling is almost 100% reliable at preventing air becoming trapped or refrigerant being lost when connecting the components together to ensure optimum flow characteristics. Once screwed together, the metal/metal seal between the coupled halves guarantees a perfectly sealed connection for the lifetime of the system.

Assembly

  1. If necessary, clean the threads on both halves of the coupling with a clean cloth in order to prevent dirt and moisture from getting into the system.

  2. Lubricate the thread, membranes and rubber seal on the male half with refrigerant oil. Screw on the cap nut by hand until securely caught in the thread and tighten with two perfectly fitting or adjustable spanners until you feel definite resistance.

  3. Axially mark hexagon bolt and bulkhead wall as well as counter cap nut and further tighten the cap nut until the markings are positioned 1/4 turn (approx. 90°) apart. This ensures a leakproof metallic connection between both halves of the coupling. The coupling is sealed.

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Accessories / Replacement parts

  • Assembly flange
    Aeroquip assembly flange FD67-1008-12
    Order No.: 721.3402
  • Aeroquip assembly flange FD57-1110-10
    Order No.: 721.3406

Technical data

Dimensions
Thread dimension
3/4 Zoll
UNF
Basic clutch size
-10
General information
Version
mit Ventil
Construction
Kupplungshälfte weiblich
Type
5781 - 8 -10
 
FD 67-1008-12
mm
 
FD 57-1110-10
mm
Pipe connections
Pipe dimension
1/2 Zoll
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.

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