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| versatile hydraulic & fluid transfer couplings |
SafeWay’s S56 Series is a general purpose, double
shut-off quick coupling capable of containing a wide
variety of fluids. This series can be found anywhere a
dependable connection and disconnection of a fluid
transfer line is required. Rugged construction and low
pressure drop make this series ideal for a variety of
applications including plant maintenance equipment,
skid-steer loaders, snow plows, mining, dump trucks,
gooseneck trailers and chemical transfer lines.
DOWNLOAD S56 PDF (1.1 MB)
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Meets dimensional requirements of ISO 7241-1
Series A. |
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A general purpose, fluid transfer quick coupling that provides
higher burst pressure and superior flow to that of Aeroquip
FD56 (5600) series and Parker 6600 series, while providing
half-for-half interchangeability. |
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Due to SafeWay’s unique poppet style valving, the S56 Series
has a shorter overall length and less weight than other brands
they replace. |
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Manufactured from high quality hardened carbon steel. |
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SafeWay began a running change from zinc and
yellow chromate plating (gold appearance) to ROHS
compliant plating (silver appearance) in 2007. |
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Operating pressure is 4,000 psi (5,000 psi in the 1/4" size). |
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Available in body sizes from 1/4" to 1" with pipe thread and
SAE O-Ring Boss (ORB) standard. |
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All S56 Series quick couplings are 100% leak tested. |
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Ideal for minimal space applications. |
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Heavy-duty dust plugs and dust caps available. |
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Heavy-duty detent ball latch design for reliable connection
time after time. |
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The S56 Series uses high quality carbon steel in its valving
and retainers; no powdered metal parts. A higher number
of detent (locking) balls and a specially hardened male tip
(nipple) add to the overall integrity of the product
and its higher rated working pressure. |
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Unique poppet/seat design allows no extrusion gap, minimizing
seal degradation under extreme pressures. Stainless steel valve
springs and retainer rings are standard. |
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Method of obtaining and presenting performance data
conforms to ANSI/(NFPA)T3.20.2.R2, Hydraulic fluid power
- Quick-action couplings - Test methods. |
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Performance Data
| part numbers |
description |
operating pressure |
rated flow |
complete
coupler |
female
body half |
male
tip half |
Body
Size |
Thread Size and Description |
Maximum |
|
| PSI |
(bar) |
gpm |
(lpm) |
| S56-2 |
S565-2 |
S561-2 |
1/4" |
1/4" Female Pipe |
5,000 |
(345) |
3 |
(12) |
| S56-3 |
S565-3 |
S561-3 |
3/8" |
3/8" Female Pipe |
4,500 |
(310) |
6 |
(23) |
| S56-3-6 |
S565-3-6 |
S561-3-6 |
3/8" |
9/16"-18 Female ORB |
4,500 |
(310) |
6 |
(23) |
| S56-4 |
S565-4 |
S561-4 |
1/2" |
1/2" Female Pipe |
4,000 |
(276) |
12 |
(45) |
| S56-4-8 |
S565-4-8 |
S561-4-8 |
1/2" |
3/4"-16 Female ORB |
4,000 |
(276) |
12 |
(45) |
| S56-4-10 |
S565-4-10 |
S561-4-10 |
1/2" |
7/8"-14 Female ORB |
4,000 |
(276) |
12 |
(45) |
| S56-6 |
S565-6 |
S561-6 |
3/4" |
3/4" Female Pipe |
4,000 |
(276) |
28 |
(106) |
| S56-6-12 |
S565-6-12 |
S561-6-12 |
3/4" |
1-1/16"-12 Female ORB |
4,000 |
(276) |
28 |
(106) |
| S56-8 |
S565-8 |
S561-8 |
1" |
1" Female Pipe |
4,000 |
(276) |
50 |
(189) |
| S56-8-16 |
S565-8-16 |
S561-8-16 |
1" |
1-5/16"-12 Female ORB |
4,000 |
(276) |
50 |
(189) |
Temperature Range: Standard Seals (Buna-N) -40° to +250° F Viton® Option -15° to +450° F Other Seals Available
Vacuum Data: 27.4 inches Hg. both connected and disconnected — all sizes.
Viton® is a registered trademark of DuPont Dow Elastomers.
Pressure rating (Max. Operating Pressure) is based on Non-Pulsating, Low Cycle applications with essentially steady pressure during the operating cycle.
Please consult factory regarding other applications.
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| compact design, high flow, high working pressure |
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| dimensions (inches) |
complete
coupler number |
overall
length |
body
length |
diameter |
hex |
diameter |
tip length |
diameter |
hex |
| A |
B |
c |
d |
e |
f |
g |
h |
| S56-2 |
2.48 |
1.79 |
1.07 |
.88 |
.96 |
1.31 |
.86 |
.75 |
| S56-3 |
3.02 |
2.20 |
1.26 |
1.06 |
1.18 |
1.65 |
1.01 |
.88 |
| S56-3-6 |
3.22 |
2.30 |
1.26 |
1.06 |
1.18 |
1.75 |
1.01 |
.88 |
| S56-4 |
3.46 |
2.56 |
1.50 |
1.25 |
1.35 |
1.88 |
1.23 |
1.06 |
| S56-4-8 |
3.56 |
2.61 |
1.50 |
1.25 |
1.35 |
1.93 |
1.23 |
1.06 |
| S56-4-10 |
3.76 |
2.71 |
1.50 |
1.25 |
1.35 |
2.03 |
1.23 |
1.06 |
| S56-6 |
3.98 |
3.04 |
1.89 |
1.38 |
1.58 |
2.26 |
1.58 |
1.38 |
| S56-6-12 |
4.18 |
3.14 |
1.89 |
1.38 |
1.58 |
2.36 |
1.58 |
1.38 |
| S56-8 |
4.73 |
3.66 |
2.13 |
1.63 |
1.87 |
2.69 |
1.87 |
1.63 |
| S56-8-16 |
4.93 |
3.76 |
2.13 |
1.63 |
1.87 |
2.79 |
1.87 |
1.63 |
Also see accessories for the S56 Series. |
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