For the complete product listing, please view Catalog 3800 - Quick Coupling Products (19.9 MB PDF)
ST Series non-valved couplings provide maximum flow and low pressure drop. The smooth, open bore allows easy cleaning in applications where the same lines are used for more than one media.
Applications: High pressure water, steam washers, carpet cleaners
Features:
Body Size | Rated Pressure | Rated Pressure | Rated Pressure | Temperature Range | Rated Flow |
---|---|---|---|---|---|
inches | Brass Coupler/Nipple | Brass Coupler/Steel Nipple | 303 SS Coupler/Nipple | (standard seals) | |
1/8 | 2500 | 2600 | 4200 | -40° to +250° F | 3 |
1/4 | 5200 | 5500 | 6700 | -40° to +250° F | 6 |
3/8 | 2700 | 3500 | 5500 | -40° to +250° F | 12 |
1/2 | 2200 | 2700 | 3000 | -40° to +250° F | 12 |
3/4 | 1700 | 2700 | 3000 | -40° to +250° F | 28 |
1 | 1200 | 2000 | 1700 | -40° to +250° F | 50 |
1-1/4 | 1700 | --- | --- | -40° to +250° F | 76 |
1-1/2 | 1400 | --- | --- | -40° to +250° F | 100 |
Body Size | Part # Brass | Part # 303 Stainless | Port End | Length | Largest Diameter | Wrench Flats | Weight Brass | Weight Stainless |
---|---|---|---|---|---|---|---|---|
inches | (lbs.) | (lbs.) | ||||||
1/8 | BST-1 | SST-1 | 1/8-27 NPTF | 1.06 | 0.69 | 0.56 | 0.06 | 0.05 |
1/4 | BST-2 | SST-2 | 1/4-18 NPTF | 1.54 | 0.94 | 0.81 | 0.17 | 0.15 |
3/8 | BST-3 | SST-3 | 3/8-18 NPTF | 1.64 | 1.16 | 1.00 | 0.26 | 0.24 |
1/2 | BST-4 | SST-4 | 1/2-14 NPTF | 1.98 | 1.30 | 1.13 | 0.40 | 0.37 |
3/4 | BST-6 | SST-6 | 3/4-14 NPTF | 2.15 | 1.66 | 1.44 | 0.62 | 0.57 |
1 | BST-8 | SST-8 | 1-11 1/2 NPTF | 2.43 | 2.02 | 1.75 | 0.99 | 0.93 |
1-1/4 | BST-10 | --- | 1 1/4-11 1/2 NPTF | 2.44 | 2.51 | 2.00 | 1.38 | --- |
1-1/2 | BST-12 | --- | 1 1/2-11 1/2 NPTF | 2.88 | 3.00 | 2.50 | 2.43 | --- |
Body Size | Part # Brass | Part # 303 Stainless | Port End | Length | Largest Diameter | Wrench Flats | Weight Brass | Weight Stainless |
---|---|---|---|---|---|---|---|---|
inches | (lbs.) | (lbs.) | ||||||
1/8 | BST-1M | SST-1M | 1/8-27 NPTF | 1.06 | 0.69 | 0.56 | 0.05 | 0.05 |
1/4 | BST-2M | SST-2M | 1/4-18 NPTF | 1.69 | 0.94 | 0.81 | 0.13 | 0.16 |
3/8 | BST-3M | SST-3M | 3/8-18 NPTF | 1.75 | 1.16 | 1.00 | 0.25 | 1.16 |
1/2 | BST-4M | SST-4M | 1/2-14 NPTF | 1.94 | 1.30 | 1.13 | 0.34 | 1.30 |
3/4 | BST-6M | SST-6M | 3/4-14 NPTF | 2.17 | 1.66 | 1.44 | --- | 1.66 |
1 | BST-8M | SST-8M | 1-11 1/2 NPTF | 2.53 | 2.02 | 1.75 | 0.85 | 2.02 |
Body Size | Part # Brass | Weight | Part # Steel | Weight | Part # 303 Stainless | Weight | Length | Largest Diameter | Wrench Flats |
---|---|---|---|---|---|---|---|---|---|
inches | (lbs.) | (lbs.) | (lbs.) | ||||||
1/8 | BST-N1 | 0.03 | ST-N1 | 0.03 | SST-N1 | 0.02 | 0.98 | 0.65 | 0.56 |
1/4 | BST-N2 | 0.07 | ST-N2 | 0.07 | SST-N2 | 0.07 | 1.46 | 0.87 | 0.75 |
3/8 | BST-N3 | 0.12 | ST-N3 | 0.11 | SST-N3 | 0.11 | 1.62 | 1.59 | 0.08 |
1/2 | BST-N4 | 0.23 | ST-N4 | 0.21 | SST-N4 | 0.21 | 1.85 | 1.30 | 1.13 |
3/4 | BST-N6 | 0.33 | ST-N6 | 0.32 | SST-N6 | 0.32 | 2.15 | 1.59 | 1.38 |
1 | BST-N8 | 0.52 | ST-N8 | 0.49 | SST-N8 | 0.48 | 2.35 | 1.88 | 1.63 |
1-1/4 | BST-N10 | 0.85 | --- | --- | --- | --- | 2.38 | 2.31 | 2.00 |
1-1/2 | BST-N12 | 1.45 | --- | --- | --- | --- | 2.81 | 2.74 | 2.38 |
Body Size | Part # Brass | Weight | Part # Steel | Weight | Part # 303 Stainless | Weight | Length | Largest Diameter | Wrench Flats |
---|---|---|---|---|---|---|---|---|---|
inches | (lbs.) | (lbs.) | (lbs.) | ||||||
1/8 | BST-N1M | 0.02 | ST-N1M | 0.02 | SST-N1M | 0.02 | 1.04 | 0.51 | 0.44 |
1/4 | BST-N2M | 0.06 | ST-N2M | 0.05 | SST-N2M | 0.05 | 1.53 | 0.65 | 0.56 |
3/8 | BST-N3M | 0.08 | ST-N3M | 0.07 | SST-N3M | 0.08 | 1.69 | 0.79 | 0.69 |
1/2 | BST-N4M | 0.15 | ST-N4M | 0.13 | SST-N4M | 0.13 | 1.94 | 1.01 | 0.88 |
3/4 | BST-N6M | 0.23 | ST-N6M | 0.21 | SST-N6M | 0.22 | 2.19 | 1.23 | 1.06 |
1 | BST-N8M | 0.46 | ST-N8M | 0.43 | SST-N8M | 0.43 | 2.51 | 1.59 | 1.38 |
1-1/4 | BST-N10M | 0.96 | --- | --- | --- | --- | 2.85 | 2.17 | 1.88 |
1-1/2 | BST-N12M | 1.46 | --- | --- | --- | --- | 3.25 | 2.45 | 2.13 |