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| heavy-duty, double shut-off quick coupling |
SafeWay’s S51 Series is a minimum spill, thread-to-connect, fluid transfer quick coupling designed for use with most industrial fluids. It can be connected under full
system pressure by rotating the female threaded heavy-duty ductile cast iron wing nut or brass hex nut onto the mating male threaded tip (nipple).
DOWNLOAD S51 PDF (816 KB)
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Applications include “wet-line-kits” used widely on dump trailers, mobile drilling rigs, mining equipment, large mobile equipment, salt spreaders, and chemical transfer units. |
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Minimum air inclusion during connection and minimum fluid
spillage during disconnection. |
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Interchangeable half-for-half with the Parker 6100 Series,
Aeroquip FD51 (5100) Series, and Snap-tite 78 Series. |
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Brass body tip and poppet combined with a rugged steel valve
for corrosion resistance and durability. |
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Optional electroless nickel plated steel (-STL) tip and body shell is combined with standard internal parts and locking mechanism to provide a rugged less costly alternative that is well suited for most applications. |
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All S51 Series quick couplings are 100% leak tested. |
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Connection-under-pressure can be accomplished due to our
heavy-duty poppet assembly with bonded valve seals. |
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A rugged, high quality machined carbon steel valve; no
powdered metal parts. |
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Available with either a ductile cast iron wing nut or heavy duty brass hex nut to perform a threaded connection. |
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SafeWay’s Ductile Cast Iron Wing Nut is specifically built to
withstand hammer blows associated with connection and
disconnection under pressure. |
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Available heavy-duty flange provides a simple and reliable
method of bulkhead mounting the quick coupling. |
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Completely field serviceable with seal repair kits. |
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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 |
Locking style |
thread size
and description |
Maximum |
|
| PSI |
(bar) |
gpm |
(lpm) |
| S51W-6 |
S515W-6 |
S511-6 |
3/4" |
Wing |
3/4" Female Pipe |
3,000 |
(207) |
28 |
(106) |
| S51H-6 |
S515H-6 |
S511-6 |
3/4" |
Hex Nut |
3/4" Female Pipe |
3,000 |
(207) |
28 |
(106) |
| S51W-6-STL |
S515W-6-STL |
S511-6-STL |
3/4" |
Wing |
3/4" Female Pipe |
3,000 |
(207) |
28 |
(106) |
| S51H-6-STL |
S515H-6-STL |
S511-6-STL |
3/4" |
Hex Nut |
3/4" Female Pipe |
3,000 |
(207) |
28 |
(106) |
| S51W-8 |
S515W-8 |
S511-8 |
1" |
Wing |
1" Female Pipe |
3,000 |
(207) |
50 |
(189) |
| S51H-8 |
S515H-8 |
S511-8 |
1" |
Hex Nut |
1" Female Pipe |
3,000 |
(207) |
50 |
(189) |
| S51W-8-STL |
S51W-8-STL |
S511-8-STL |
1" |
Wing |
1" Female Pipe |
3,000 |
(207) |
50 |
(189) |
| S51H-8-STL |
S515H-8-STL |
S511-8-STL |
1" |
Hex Nut |
1" Female Pipe |
3,000 |
(207) |
50 |
(189) |
| S51W-10 |
S515W-10 |
S511-10 |
1-1/4" |
Wing |
1-1/4" Female Pipe |
2,500 |
(172) |
76 |
(288) |
| S51H-10 |
S515H-10 |
S511-10 |
1-1/4" |
Hex Nut |
1-1/4" Female Pipe |
2,500 |
(172) |
76 |
(288) |
| S51W-10-STL |
S515W-10-STL |
S511-10-STL |
1-1/4" |
Wing |
1-1/4" Female Pipe |
2,500 |
(172) |
76 |
(288) |
| S51H-10-STL |
S515H-10-STL |
S511-10-STL |
1-1/4" |
Hex Nut |
1-1/4" Female Pipe |
2,500 |
(172) |
76 |
(288) |
-STL has an electroless nickel plated steel body and tip shell with standard internal parts.
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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| screw together maximum flow with minimal spillage |
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| dimensions (inches) |
complete
coupler number |
overall
length |
body
length |
Wing Nut Length |
Wrench Flat |
diameter |
tip length |
diameter |
WRENCH flat |
Hex |
Hex |
| A |
B |
c |
d |
e |
f |
g |
h |
J |
K |
| S51W-6 |
4.75 |
2.72 |
4.06 |
1.16 |
1.25 |
3.05 |
1.36 |
1.16 |
1.62 |
- |
| S51H-6 |
4.75 |
2.72 |
- |
1.16 |
1.25 |
3.05 |
1.36 |
1.16 |
1.62 |
1.75 |
| S51W-6-STL |
4.75 |
2.72 |
4.06 |
1.16 |
1.25 |
3.05 |
1.36 |
1.16 |
1.62 |
- |
| S51H-6-STL |
4.75 |
2.72 |
- |
1.16 |
1.25 |
3.05 |
1.36 |
1.16 |
1.62 |
1.75 |
| S51W-8 |
5.40 |
3.32 |
4.38 |
1.43 |
1.56 |
3.30 |
1.74 |
1.56 |
1.88 |
- |
| S51H-8 |
5.40 |
3.32 |
- |
1.43 |
1.56 |
3.30 |
1.74 |
1.56 |
1.88 |
2.12 |
| S51W-8-STL |
5.40 |
3.32 |
4.38 |
1.43 |
1.56 |
3.30 |
1.74 |
1.56 |
1.88 |
- |
| S51H-8-STL |
5.40 |
3.32 |
- |
1.43 |
1.56 |
3.30 |
1.74 |
1.56 |
1.88 |
2.12 |
| S51W-10 |
5.69 |
3.66 |
5.20 |
1.77 |
1.89 |
3.42 |
2.08 |
1.88 |
2.12 |
- |
| S51H-10 |
5.69 |
3.66 |
- |
1.77 |
1.89 |
3.42 |
2.08 |
1.88 |
2.12 |
2.50 |
| S51W-10-STL |
5.69 |
3.66 |
5.20 |
1.77 |
1.89 |
3.42 |
2.08 |
1.88 |
2.12 |
- |
| S51H-10-STL |
5.69 |
3.66 |
- |
1.77 |
1.89 |
3.42 |
2.08 |
1.88 |
2.12 |
2.50 |
-STL has an electroless nickel plated steel body and tip shell with standard internal parts.
Also see accessories for the S51 Series. |
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