Page 64 - ParkerQuickCouplingCatalog38002010

Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings B-20
Hydraulic Quick Couplings
B
Hydraulics
Non-Spill Couplings
NS Series
Features
1. Positive valve stop. The perch maintains valve alignment
and provides metal to metal valve stop to ensure that the
valves open fully, every time.
2. Captive valve seal assures “bubble tight” poppet sealing.
The valve seal is positively captured by the metal poppet
to minimize seal washout or damage from high velocity
fluid.
3. Steel construction, Chromium-6 Free plated . Hardened
nipples and sleeves and solid barstock construction for
maximum resistance to damage from hydraulic and
mechanical shock.
4. The seal is designed to withstand high pressures and
provide reliable sealing. 1/2" and above sizes feature
PTFE back-up rings that support mating seals for high
pressure applications.
5. Durable ball-locking assure reliable connection, every
time. A large number of locking balls distribute 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), SAE O-Ring Boss and British pipe
(BSPF) are available as standard.
7. Dry-Disconnect 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 included during
reconnection.
8. Sleeve locking mechanism prevents accidental
disconnection when the coupling is dragged along the
ground. Sleeve is rotated to engage the lock. The sleeve-
lock feature is standard on this product.
5 8 7
6
4
2 3
1
Applications
Non-Spill couplings by Parker 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 hand tools in the construction, railway
maintenance and mining industries. They are also ideal for in-
plant use where excess oil spillage can create a hazard.
Note: See pages noted in Table of Contents for dust plugs
and caps for the Parker full line of hydraulic couplings.
Performance
Specifications
Body Size (in.) 3/8 1/2 3/4 1
Rated Pressure (PSI) 2500 2500 2500 2500
Rated Flow (GPM) 10 12 30 50
Temperature Range (std seals) -40° to +250°F
Spillage (ML) 0.020 0.070 0.150 0.220
(max. per disconnect)
Air Incl. (ML) 0.010 0.020 0.050 0.070
(max. per disconnect)
NS Series (3/8"& 1/2")
Test Fluid: Oil - 200 SUS
0
5
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18
Flow in USGPM
Pressure Drop in PSID
3/8"
1/2"
NS Series (3/4" & 1")
Test Fluid: Oil - 200 SUS
0
5
10
15
20
25
0 10 20 30 40 50 60 70
Flow in USGPM
Pressure Drop in PSID
3/4"
1"