Parker 20 Series Pneumatic Couplings | General Purpose - Manual Connect
|Parker 20 Series are couplers that accept industrial interchange nipples manufactured by Parker and other manufacturers.
Standard seals are Nitrile. Optional materials are available - contact us with questions.
20 Series QC Dimensions & Specifications:
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Sleeve type couplings, such as Parker 20 Series, are widely used to connect air lines. Parker 20 Series Couplings can also be used with low pressure fluids such as water, grease, or paint.
20 Series Coupling's compact and economical design uses a ball locking mechanism consisting of captive steel balls that engage the locking groove on the mating nipple. The sliding spring loaded sleeve on the coupler must be manually retracted in order to connect or disconnect the nipple. It is easy to do, but two hands are normally required.
Common applications: compressed air, water, grease, paint, limited vacuum and limited gases.
Parker 20 Series Couplings Specifications & Performance
|Body Size (in.)||1/4||3/8||1/2|
|Rated Pressure (PSI)||300||300||300|
|Temperature Range (Std. seals)*||-40° to +250° F.|
|Locking Device||4 balls||8 balls||8 balls|
|Vacuum Data (inches Hg) Disconnected (coupler only) Connected||Not Recommended|
Parker General Purpose Pneumatic Coupling Repair Kits
The repair kits below are for Parker 10, 20, 30, 50, 70, & TL Series Pneumatic Couplings.
20 Series Couplings Options
SPECIAL MATERIAL OPTIONS
The standard 1/4" 20 Series is a brass coupler with a steel valve. Larger sizes include an all steel construction, but brass is also available. To order a 3/8" or 1/2" coupler with a brass body and steel sleeve and valve, add the prefix “B” to the steel part number, Example: B25.
Add the suffix “N” as well as the “B” prefix to order an all brass coupler with stainless steel locking balls and springs, Example: B25N.
All-brass 20 Series Couplings should be used to avoid corrosion from moisture. Contact us for specific recommendations.
OPTIONAL SEAL MATERIALS
Ethylene Propylene - temperature range from -65°F to +400°F (use part number suffix "W" to specify)
Fluorocarbon - tempreature range from -30°F to +400°F (Use part number suffix "Y" to specify)
This Grip-Ring sleeve enables the operator to connect or disconnect the coupling easily, even with greasy hands or while wearing heavy gloves.
Grip-Ring sleeves are available for 10 and 20 Series couplers. To specify a model with a Grip-Ring sleeve, add the suffix letter “R” to the regular model number. Example: B23R.
Caution: The Grip-Ring sleeve is subject to unintended disconnect if dragged on the end of a hose. Do not attempt to pull it over obstacles.
All sizes of 10, 20, 30, 50, and 70 Series couplers can be furnished with Locking Sleeves, as illustrated.
Place suffix letters -“SL” (Sleeve-Lok) after regular catalog number. Example: B23-SL.
Orders & Quotes
When ordering quick couplers, consider the following:
- Functional requirements of the coupling
- Maximum working pressure of the application
- Coupler seal & body material compatibility with the system’s fluid
- Is the application static or dynamic?
- Size of coupler & hose
- Maximum allowable pressure drop
- Requirement to connect & disconnect under pressure
- Media temperature
- Ambient temperature
- End configuration requirements
- Need for industrial interchange QC
- Effects of air inclusion & fluid loss