Page 96 - ParkerQuickCouplingCatalog38002010

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Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings
B-52
Hydraulic Quick Couplings
B
Hydraulics
High Flow Couplings
ST Series
Features
• The smooth, open bore with no valving in either half offers
minimal pressure drop and allows easy cleaning in applica-
tions where the same lines are used for more than one
media.
• ST couplers and nipples are machined from solid barstock,
providing a quality coupling that is durable. ST couplers are
available in brass and 303 stainless steel as standard
product materials.
• ST nipples are available in 303 stainless steel, brass and
Chromium-6 Free plated steel. The ball locking grooves of
the steel ST nipples are case hardened for resistance to
brinelling where high cycle rates and pressure surges are
encountered.
• The ST is an "Interchange" coupling since it dimensionally
and functionally interchanges with similar couplings made
by other manufacturers.
Couplers
Female Pipe Thread
Male Pipe Thread
A
C
B
A
C
B
Body Part No.
Part No.
Thread
Dimensions (in.)
Size
Wt. (LB.)
Type 303 Wt. (LB.)
Size
Overall
Wrench Largest
(in.)
Brass P/Piece Stainless P/Piece
NPTF
Length Flats Diameter
A
B
C
1/8 BST-1 0.06
SST-1 0.05
1/8-27
1.06
0.56
0.69
1/4 BST-2 0.17
SST-2 0.15
1/4-18
1.54
0.81
0.94
3/8 BST-3 0.26
SST-3 0.24
3/8-18
1.59
1.00
1.16
1/2 BST-4 0.59
SST-4 0.37
1/2-14
1.98
1.13
1.30
3/4 BST-6 0.62
SST-6 0.57
3/4-14
2.15
1.44
1.66
1
BST-8 0.99
SST-8 0.93
1-11 1/2
2.43
1.75
2.02
1-1/4 BST-10 1.38
–
–
1 1/4-11 1/2
2.44
2.00
2.51
1-1/2 BST-12 1.42
–
–
1 1/2-11 1/2
2.88
2.50
3.00
Body Part No.
Part No.
Thread
Dimensions (in.)
Size
Wt. (LB.)
Type 303 Wt. (LB.)
Size
Overall
Wrench Largest
(in.)
Brass P/Piece Stainless P/Piece
NPTF
Length Flats Diameter
A
B
C
1/8 BST-1M 0.05 SST-1M 0.05
1/8-27
1.06
0.56
0.69
1/4 BST-2M 0.16 SST-2M 0.16
1/4-18
1.69
0.81
0.81
3/8 BST-3M 0.25 SST-3M 0.21
3/8-18
1.75
1.00
1.16
1/2 BST-4M 0.34 SST-4M 0.31
1/2-14
1.94
1.13
1.30
3/4 BST-6M –
SST-6M 0.49
3/4-14
2.17
1.44
1.66
1 BST-8M 0.85 SST-8M 0.08
1-11 1/2
2.53
1.75
2.02
Special Order Information
All sizes of ST Series can be furnished with locking sleeves.
Place suffix letters “SL” (Sleeve-Lok) after regular catalog
numbers. Example: SST-4MSL. Standard seal material is
Nitrile. Ethylene Propylene, Fluorocarbon, or Neoprene seals
are available upon request. See Fluid Compatibility Chart for
recommendations.