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Dresser
Style 65, Style 88, Style 90, and Style 90 Universal cover compression joints for steel IPS pipe, copper CTS tubing, and brass service connections from 1/2" to 2". No solder, no thread compound, no torches — just mechanical compression with a proven elastomeric seal.
| Size | Regular OD | Regular Wt | Long Body Wt |
|---|---|---|---|
| 1/2" | 0.840" | 0.54 lb | 1.40 lb |
| 3/4" | 1.050" | 0.65 lb | 0.91 lb |
| 1" | 1.315" | 0.97 lb | 1.27 lb |
| 1-1/4" | 1.660" | 1.35 lb | 1.75 lb |
| 1-1/2" | 1.900" | 1.75 lb | 2.17 lb |
| 2" | 2.375" | 2.60 lb | 3.25 lb |
Long body Style 65 is preferred for older galvanized steel service lines where pipe OD may be irregular from scale buildup or corrosion. The additional sleeve length improves centering and sealing on out-of-round pipe.
Style 65 insulating adapter gaskets (3065 series) are stocked for all sizes 1/2" through 2". Required wherever cathodic protection systems require electrical isolation at the service connection.
1" copper Type K CTS OD = 1.125" versus 1" steel IPS OD = 1.315". These are NOT interchangeable. Always verify pipe OD with calipers before specifying.
| Nominal | Steel IPS OD | Copper CTS OD | Difference |
|---|---|---|---|
| 1/2" | 0.840" | 0.625" | 0.215" |
| 3/4" | 1.050" | 0.875" | 0.175" |
| 1" | 1.315" | 1.125" | 0.190" |
| 1-1/4" | 1.660" | 1.375" | 0.285" |
| 1-1/2" | 1.900" | 1.625" | 0.275" |
| 2" | 2.375" | 2.125" | 0.250" |
| Pipe Material | OD Standard | Preferred Series | Alternative |
|---|---|---|---|
| Steel IPS | IPS (larger OD) | Style 65 | Style 90 Universal |
| Copper Type K/L | CTS (smaller OD) | Style 90 | Style 90 Universal |
| Mixed / Unknown | IPS or CTS | Style 90 Universal | — |
| Gas Lateral (any) | IPS or CTS | Style 88 Brass | Style 65 (where ferrous OK) |
| CP Boundary | Any | Style 65 + Insulating Gasket | Style 39 Insulating Coupling |
Contact our team for availability, custom sizing, and volume pricing on Dresser Utility Solutions products.
Email sales@watermainsupply.com Call 281.664.8000