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The 1BG Series is a straight hydraulic adapter designed to connect BSP threaded hydraulic components with different sealing methods. One end supports either a 60° cone seat or bonded seal connection, while the opposite BSP male thread uses an elastomer O-ring to achieve reliable leak-free sealing.

The dual-purpose sealing configuration simplifies inventory management and increases installation flexibility by allowing the fitting to be used in multiple hydraulic system designs. Precision-machined sealing surfaces and threads ensure secure connections, stable sealing performance, and excellent pressure resistance.
Manufactured from premium carbon steel or stainless steel, the fittings are available with zinc-plated or other corrosion-resistant surface treatments for improved durability. Their compact straight design makes them suitable for hydraulic power units, construction m
achinery, agricultural equipment, industrial automation systems, and general fluid transmission applications.
BSP male straight hydraulic adapter
Dual-use sealing for 60° cone seat or bonded seal
BSP male thread with O-ring sealing
Reliable leak-resistant sealing performance
Precision-machined threads and sealing surfaces
Carbon steel and stainless steel material options
Zinc-plated surface for enhanced corrosion resistance
Suitable for medium and high-pressure hydraulic systems
| PART NO. | T H R E A D | O-RING | DIMENSIONS | ||||||
| E | F | F端 | A | B | L | S1 | |||
| 1BG-02 | G1/8"X28 | G1/8"X28 | O011 | 10.0 | 9.5 | 27 | 14 | ||
| 1BG-04 | G1/4"X19 | G1/4"X19 | O111 | 12.0 | 11 | 31 | 19 | ||
| 1BG-04-06 | G1/4"X19 | G3/8"X19 | O113 | 12.0 | 11.5 | 32 | 22 | ||
| 1BG-06 | G3/8"X19 | G3/8"X19 | O113 | 13.5 | 11.5 | 33 | 22 | ||
| 1BG-06-04 | G3/8"X19 | G1/4"X19 | O111 | 13.5 | 11 | 32.5 | 22 | ||
| 1BG-06-08 | G3/8"X19 | G1/2"X14 | O115 | 13.5 | 14 | 38.5 | 27 | ||
| 1BG-08 | G1/2"X14 | G1/2"X14 | O115 | 16.0 | 14 | 41 | 27 | ||
| 1BG-08-06 | G1/2"X14 | G3/8"X19 | O113 | 16.0 | 11.5 | 36 | 27 | ||
| 1BG-08-12 | G1/2"X14 | G3/4"X14 | O119 | 16.0 | 15.5 | 45.5 | 32 | ||
| 1BG-10-08 | G5/8"x14 | G1/2"X14 | O115 | 17.5 | 14 | 44.5 | 30 | ||
| 1BG-12 | G3/4"X14 | G3/4"X14 | O119 | 18.5 | 15.5 | 46 | 32 | ||
| 1BG-12-08 | G3/4"X14 | G1/2"X14 | O115 | 18.5 | 14 | 45.5 | 32 | ||
| 1BG-16-08 | G1"X11 | G1/2“X14 | O115 | 20.5 | 14 | 50.5 | 41 | ||
| 1BG-16 | G1"X11 | G1"X11 | O217 | 20.5 | 18 | 53 | 41 | ||
| 1BG-16-12 | G1"X11 | G3/4"X14 | O119 | 20.5 | 15.5 | 52 | 41 | ||
| 1BG-20 | G1.1/4"X11 | G1.1/4"X11 | O222 | 20.5 | 20 | 58.5 | 50 | ||
| 1BG-24 | G1.1/2"X11 | G1.1/2"X11 | O224 | 23 | 21.5 | 62.5 | 55 | ||
| 注:F端与DIN 3852油口相配。 F end is connected with DlN 3852 port. | |||||||||
The 1BG Series BSP Male Double Use Fittings are widely used in hydraulic power units, construction machinery, agricultural machinery, industrial automation equipment, fluid transmission systems, and general hydraulic piping. Their dual sealing design offers excellent compatibility and reliable performance in medium and high-pressure hydraulic applications.