Page 67 - ParkerQuickCouplingCatalog38002010

Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings B-23
Hydraulic Quick Couplings
B
Hydraulics
Non-Spill Couplings
FF Series
1 2 3
4
7
8 6
5
Features
1. Sleeve locking mechanism is engaged by rotating sleeve after
connection. It prevents accidental disconnection when, for
example, the coupling is dragged along the ground during use.
2. Sleeve mechanism is designed to help prevent dirt from
entering the internal mechanism and thus causing faulty
operation when connecting or disconnecting. The sleeve
covers the retaining ring and also incorporates a dust seal in
the spring area.
3. Steel construction, with Chromium-6 Free plating.
Hardened nipples and sleeves and solid barstock
construction for maximum resistance to damage from
hydraulic and mechanical shock.
4. The blow-out resistant seal is designed to prevent damage
during severe service conditions.
5. Durable ball-locking mechanism assures reliable connections,
every time. A large number of locking balls distributes the
work load evenly while providing alignment and swiveling
action to reduce hose torque and prolong hose life. CAUTION:
These products are not to be used as swivels. Rotation under
pressure will result in excessive and premature wear.
6. Female pipe (NPSF), British pipe (BSPP) and SAE
O-Ring Boss are available as standard.
7. FF Series couplings employ flush valving when connecting or
disconnecting. This means that the valves are mated together
so that only small amounts of fluid can be lost during
disconnection or air inclusion during reconnection.
8. The 3/8" size conforms to HTMA (Hydraulic Tool Manufactures
Association) standards. All sizes incorporate flush face mating
surfaces which greatly facilitate cleaning of the product when
disconnected. HTMA couplings (3/8" only)-coupler and nipple
are marked with a directional flow arrow as per specifications.
However, couplings are bi-directional.
Applications
Parker FF Series couplings are widely used in the public
utility market where hydraulic oil spillage can constitute a
serious safety hazard, particularly in overhead bucket hoists
that are used for maintenance of high-voltage power
transmission lines. These couplings are also used for quick
change of hydraulic tools in construction, railway maintenance
and mining industries. The ease of cleaning makes them ideal
for use in these types of hostile environments.
Note: See pages noted in Table of Contents for dust plugs
and caps for the Parker full line of hydraulic couplings.
FF Series (1/4", 3/8", 1/2")
Test Fluid: Oil - 200 SUS
0
5
10
15
20
25
0 2 4 6 8 10 12 14 16 18
Flow in USGPM
Pressure Drop in PSID
1/4"
3/8"
1/2"
Performance
Specifications
Body Size (in.) 1/4 3/8 1/2 3/4 1
Rated Pressure (PSI) 5000 3000 3000 3000 3000
Rated Flow (GPM) 3 6 12 28 50
Temperature Range -40° to + 250°F
Spillage (ML) .015 .015 .020 .150 .200
(max. per disconnect)
Air Inclusion (ML) .020 .020 .070 .100 .150
(max. per connect)
FF Series (3/4" & 1")
Test Fluid: Oil - 200 SUS
0
5
10
15
20
25
30
35
40
45
0 10 20 30 40 50 60 70
Flow in USGPM
Pressure Drop in PSID
3/4"
1"