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Parker Hannifin Corporation
Quick Coupling Division
Minneapolis, MN
www.parker.com/quickcouplings
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Pneumatics
Pneumatic Quick Couplings
Single Shut-Off Couplings
Single Shut-Off couplings are primarily used for pneumatic
applications, connecting air tools, hoses, or other implements
to compressed air supplies. They are also used with other
gases, and with the exception of the E-z-mate Series can be
used with low pressure fluids. The coupler half contains a
shut-off valve that is automatically opened when a mating
nipple is inserted and automatically closes when the nipple
is removed.
Parker Single Shut-Off couplings come in three basic designs:
general purpose/manual connect, general purpose/push-to-
connect, and special purpose.
The standard seal material for all Parker Single Shut-Off
couplers is Nitrile. Ethylene Propylene, Fluorocarbon, and
Neoprene seals are available as options. See the comprehensive
Fluid Compatibility Chart that provides guidelines for seal
and body material selection. When there is need for further
assistance in selecting the appropriate seal material, please
consult the Quick Coupling Division.
General Ordering Information
When ordering Parker coupler bodies and nipples, please state
the part number of each type of coupler body and each type of
nipple desired. List coupler bodies and nipples as separate
items rather than in combinations. Be sure to double check
thread or hose sizes of items required.
Many of Parker’s coupling products are available with unique
non-standard options well suited to very specific applications.
Examples of unusual end use applications might include:
high temperatures (above 250° F), extremely caustic/
corrosive solutions passing through the coupling, external/
environmental corrosion situations, or other high wear and
tear situations such as dragging the product along the ground.
It is always recommended that the Quick Coupling Division
be contacted with any questions concerning specific product
application needs.
Checklist for Selecting Quick Couplings
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What are the functional requirements of the coupling?
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What is the maximum working pressure of the application?
q
Which seals and body material are compatible with the system’s fluid?
q
Is the application static or dynamic?
q
What size coupler/hose is required?
q
What is the maximum pressure drop suitable for the application?
q
Does the application require the ability to connect and disconnect under pressure?
q
What is the media temperature and ambient temperature?
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What end configurations are required?
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Is an industry interchange coupler required?
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Is air inclusion and fluid loss a concern in the application?