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CPIFF Series Soft Seat0 pages
Check Valves
CPIFF Series
Soft Seat
CPIFF Series Soft Seat Check Valves provide a
positive shut off to prevent reverse flow.
CPIFF Series check valves are designed to protect hydraulic
systems from fluid back pressure. The poppet is streamlined
with minimum restriction of flow in one direction. Flow is
blocked in the reverse direction as the soft seat creates a leak
free seal in the closed position.
These in-line unidirectional valves are available in sizes 1/4” to
1” with a pressure rating up to 5000 psi. Standard spring crack
pressures are shown in the part number table. Other crack
pressures available upon request.
Features
1.t Fluorocarbon poppet seal is standard.
2.t Steel construction
Flow Rate (l/min)
30
3.45
2.76
2.07
20
1.38
10
.69
.35
.28
.21
1"
3/4
"
1/2
5.0
4.0
3.0
"
3/8
"
1/4
"
6.90
5000
3
5000
8
1/2
5000
12
3/4
5000
20
1
5000
30
Seal Options (add code to part number)
Code
Poppet Seal Material
suffix A
Flow Rate (GPM)
Hydraulic Oil @ 100°C, Fully Open
Nitrile
suffix E
100
30
20
10
Rated Flow (gpm)
3/8
.007
3.0
4.0
5.0
.1
Max Pressure (psi)
1/4
.014
2.0
.2
Size (in)
.034
.028
.021
1.0
.07
.5
.4
.3
.3
.4
.5
1.0
.1
.14
.2
2.0
Specifications
Pressure Drop (bar)
100
Pressure Drop (psi)
3.t Optional crack pressures available on request
378.50
75.70
113.55
37.85
7.57
11.36
15.14
18.93
3.79
.76
1.36
1.51
1.89
.38
Hydraulic Oil @ 38°C, Fully Open
Ethylene Propylene
E Valves
CPIFF Series Part Numbers
Valve
Size
Part Number
Inlet and Outlet Port
Threads (Female)
Dimensions (In.)
Length
Wrench
Flats
Standard Seal
Material
** Std Crack
Pressure (psi)
Max Operating
Pressure (psi)
1/4
CPIFF-2P-**
1/4 - 18 NPSF
1.97
3/4
Fluorocarbon
5, 15, 25, 65
5000
3/8
CPIFF-3P-**
3/8 - 18 NPSF
2.60
1
Fluorocarbon
5, 15, 25, 65
5000
1/2
CPIFF-4P-**
1/2 - 14 NPSF
3.25
1-1/4
Fluorocarbon
5, 15, 25, 65
5000
1/2
CPIFF-8S-**
3/4 - 16 UNF
3.25
1-1/4
Fluorocarbon
5, 15, 25, 65
5000
3/4
CPIFF-6P-**
3/4 - 14 NPSF
4.33
1-3/8
Fluorocarbon
5, 15, 25, 65
5000
3/4
CPIFF-12S-**
1-1/16 - 12 UN
4.33
1-3/8
Fluorocarbon
5, 15, 25, 65
5000
1
CPIFF-8P-**
1 - 11-1/2 NPSF
4.78
1-3/4
Fluorocarbon
5, 15, 25, 65
5000
1
CPIFF-16S-**
1-5/16 - 12 UN
4.78
1-3/4
Fluorocarbon
5, 15, 25, 65
5000
E-14
128_sec E Valves_2.indd 14
Parker Hannifin Corporation
Quick Coupling Division
Minneapolis, MN
www.parker.com/quickcouplings
2/28/14 2:18 PM
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