B-48
FEC Series Connect Under Pressure Nipples
Body
Size Part Number Mating Half
Port End
Length
Coupled Length
(
when connected to
corresponding nipple)
Largest
Diameter
Wrench
Flats
Weight
(
lbs.)
1/2
FEC-502-8FP FEM-501 1/2-14 NPSF
3.50
5.82
1.22
1.125
–
1/2
FEC-502-10FO FEM-501 7/8-14 UNF
3.50
5.82
1.22
1.125
–
1/2
FEC-502-12FO FEM-501 1 1/16-12 UNF 3.79
6.36
1.65
1.500
–
5/8
FEC-622-12FO FEM-621 1 1/16-12 UN 3.39
5.94
1.65
1.500
–
3/4
FEC-752-12FO FEM-751 1 1/16-12 UN 3.76
6.58
1.65
1.500
–
Parker Hannifin Corporation
Quick Coupling Division
Minneapolis, MN
www.parker.com/quickcouplings
B
Hydraulics
FEM/FEC Series
ISO 16028
Connect under pressure nipple
Applications
Parker FEC Series nipple provide connect-under-pressure
capability with up to 3000 PSI of trapped pressure in the nipple
and are ideal for ap­pli­ca­tions where residual pressure makes
reconnect difficult. Utilized primarily in the con­struc­tion
equipment market, FEC Series products are commonly found
on hydraulic attachments used in skid steer applications. The
FEC Series mates with the FEM Series interface ISO 16028
couplers.
Features:
•
Connect-Under-Pressure nipple
•
Hardened locking surface
•
Steel construction, Chromium-6 Free plating
for corrosion resistance
•
Anti blowout bonded nipple seal
•
Flush face valving
Performance
Connect Under Pressure Operation
FEC Series products operate slightly different from traditional
non-spill couplings. With no pressure in the coupler and up
to 3000 PSI of trapped pressure in the nipple, begin to couple
the mating halves. Delay momentarily during con­nec­tion to
allow trapped pressure to equalize with the mating half before
completing the connection.
FEC Series (1/2", 5/8", 3/4")
Test Fluid: Oil - 200 SUS
0
10
20
30
40
50
60
70
80
0
10
20
30
40
Flow in USGPM
Pressure Drop in PSID
1/2"
5/8"
3/4"
FEC Series Specifications
Body
Size
Rate
Pressure
(
psi)
Rated Connect-
Under-Pressure
Capabilty
Rated
Flow
(
gpm)
Spillage
(
ml)
max. per
disconnect
Air Inclusion
(
ml)
max. per
connect
1/2
3625
3000
12
.020
.070
5/8
3625
1700
20
.003
.070
3/4
3625
1500
26
.150
.100
Standard Port Configurations: FP
-
Female Pipe Thread
FO
-
Female Straight Thread
*
This dimension represents the portion of the nipple that is exposed when the nipple and coupler are connected.
Hydraulic Quick Couplings
Non-Spill