Parker 20 Series Pneumatic Couplings | General Purpose - Manual Connect

Parker 20 Series Pneumatic QC 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:


Choose another GP - Manual Connect QC
Choose another Pneumatic QC
Go back to Product Overview

 

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
27.4 27.4 27.4

 

Parker 10 Series QC Pressure Drop Chart

 

Parker General Purpose Pneumatic Coupling Repair Kits



The repair kits below are for Parker 10, 20, 30, 50, 70, & TL Series Pneumatic Couplings.

Body
Size
Seal
Material
Part
No.
1/4 Nitrile 21K
1/4 Ethylene Propylene 21KW
1/4 Fluorocarbon 21KY
3/8 Nitrile 14K
3/8 Ethylene Propylene 14KW
3/8 Fluorocarbon 14KY
1/2 Nitrile 16K
1/2 Ethylene Propylene 16KW
1/2 Fluorocarbon 16KY
3/4 Nitrile 38K
3/4 Ethylene Propylene 38KW
3/4 Fluorocarbon 38KY

 

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)

GRIP-RING SLEEVE

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.

SLEEVE-LOK

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


PLACE ORDER
 REQUEST QUOTE
 ASK QUESTION

 

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