Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings
E-14
Check Valves
E
Valves
2600 Series
Low Pressure and Lightweight
Constructed of lightweight aluminum, the 2600 Series
Swing Check Valve has a spring-loaded, trapdoor style
valve. The valve opens when system pressure approaches
1/2 psi to permit full flow with low pressure drop. As system
pressure is relieved, the valve closes, retaining fluids
upstream.
Parker’s 2600 Series are in-line check valves designed
especially for diesel and gasoline engine fuel lines. They are
also used for externally mounted oil filters, and coolers, as
well as transmission fluid lubrication lines. With a maximum
of 1/2 psi cracking pressure, these Swing Check Valves are
useful in most low pressure air, liquid, or gas systems.
Features
1.
Lightweight, corrosion-resistant aluminum construction.
2.
Available with 1/4” or 3/8” NPTF ports.
3.
Standard Nitrile or Fluorocarbon seals.
4.
1/2 PSI maximum crack pressure.
5.
Trapdoor style valve permits full flow with low pressure
drop.
L
THREAD
THREAD
Crack Pressure
1/2 PSI Max
Weight
0.08 lbs
Temperature Range Nitrile: -40° F to 200°F (-40° C to 93° C)
Fluorocarbon: -40° F to 400°F (-40° C to 204° C)
Static Burst Pressure 2600 PSI (179 bar)
Max Leakage
5 cc / 24 hours at 28” head
Specifications
Part
Dimensions
Number
Thread
Seal Material
Hex inch
L inch (mm)
2600
1/4 - 18NPTF
Nitrile
1-1/16
2.06 (52)
2676
1/4 - 18NPTF
Fluorocarbon
1-1/16
2.06 (52)
2650
3/8 - 18NPTF
Nitrile
1-1/16
2.12 (54)
2625
3/8 - 18NPTF
Fluorocarbon
1-1/16
2.12 (54)
Part Numbers