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BHydraulics High Flow Couplings Hydraulic Quick Couplings ST Series Features 1. The smooth, open bore with no valving in either half offers minimal pressure drop and allows easy cleaning in appli- cations where the same lines are used for more than one media. 2. 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. 3. ST nipples are available in 303 stainless steel, brass and zinc-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. 4. The ST is an "Interchange" coupling since it dimensionally and functionally interchanges with similar couplings made by other manufacturers. 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 Couplers Buna-N (Nitrile). Ethylene Propylene, Fluorocarbon, or Neo- prene seals are available upon request. See Fluid Female Pipe Thread Compatibility Chart for recommendations. 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 A 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 C 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 B Male Pipe Thread 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 A 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 C 1 BST-8M 0.85 SST-8M 0.08 1-11 1/2 2.53 1.75 2.02 B Quick Coupling Division 8145 Lewis Road � Minneapolis, MN 55427 B-54 www.parker.com/quickcouplings
Goodyear Rubber Products
