Page 15 - ParkerQuickCouplingCatalog38002010

Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings A-12
Pneumatic Quick Couplings
A
Pneumatics
How to Order Information
The standard 1/4" 20 Series is a brass coupler with a steel
valve. The larger sizes are an all steel construction with brass
available as an option. To order a 3/8" or 1/2" body size
coupler with a brass body and a steel sleeve and valve, add
the prefix “B” to the steel part number. Example: B16.
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 couplings should be used to avoid
corrosion from moisture. Consult factory for specific
recommendations.
Available with Sleeve-Lok (See Coupler Options at the
beginning of Section A). To order, add “-SL”as a suffix to the
part number, Example: 25-SL.
Available for 1/4" 20 Series couplers is a Grip-Ring sleeve
(See Coupler Options). To order, add the suffix “R” to the part
number, Example: B23R.
Applications
Sleeve type couplings are widely used to connect air lines
and can also be used with low pressure fluids.
Their 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 include: compressed air, water, grease,
paint, limited vacuum and limited gases.
General Purpose – Manual Connect
20 Series Industrial Interchange
Features
• Parker 20 Series sleeve type couplers accept industrial
interchange nipples manufactured by Parker and other
manufacturers.
• Standard seals are Nitrile. See the Coupling Selection and
Ordering Information Guide at the beginning of Section A
and the Fluid Compatibility Chart at the end of this catalog
for optional materials.
Performance
Specifications
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) Not recommended
Connected 27.4 27.4 27.4
* See Coupling Selection and Ordering Guide for Optional Seals
See Coupling Repair Kits Table on introduction page to General
Purpose - Manual Connect Couplers
20 Series (1/4", 3/8", 1/2" sizes)
0
20
40
60
80
100
120
140
160
0 5 10 15 20
Air Flow in SCFM
1/2"
3/8"
1/4"
Pressure Drop in PSID
100 PSI Inlet Pressure
80 PSI Inlet Pressure