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One end of the DPN internal thread connector is connected to a hose, and the other end is connected to a threaded steel pipe or equipment with external thread connectors. Please specify the hose specifications and connection thread size when ordering. Example: DPN15-G1/2 ", one end is connected to a ¢ 15 hose, and the other end is internally threaded G1/2".

| Specification table notes | English system | Thin steel | NPT | |
| the metric system | English system | |||
| 12 | 3/8″ | G3/8″ | C19 | NPT3/8 |
| 15 | 1/2″ | G1/2″ | C19 | NPT1/2 |
| 20 | 3/4″ | G3/4″ | C25 | NPT3/4 |
| 25 | 1″ | G1″ | C31 | NPT1 |
| 32 | 1/1/4″ | G1/1/4″ | C39 | NPT1/1/4 |
| 38 | 1/1/2″ | G1/1/2″ | C51 | NPT1/1/2 |
| 51 | 2″ | G2″ | C63 | NPT2 |
| 64 | 2/1/2″ | G2/1/2″ | C75 | NPT2/1/2 |
| 75 | 3″ | G3″ | NPT3 | |
| 100 | 4″ | G4″ | NPT4 | |
| 125 | 5“ | G5” | NPT5 | |
| 150 | 6” | G6' | NPT6 | |
| 200 | 8“ | g8' | NPT8 | |
| Note: Special specifications, models, and special threads can be customized by phone. | ||||
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