The HOKE GYROLOK bulkhead union joins two tubes through a panel. It comes in fractional sizes from 1/16" to 2" and metric sizes from 3 to 25 mm and is fixed to the panel with a nut.
| Type | Bulkhead Union (BU): joins two fractional tubes through a panel / BU/MM: for metric tubes |
| Tube Outer Diameter | Fractional 1/16" to 2" / metric 3 to 25 mm |
| Part Numbers | Fractional 1BU[ ] to 32BU[ ] / metric 3BU[ ]MM to 25BU[ ]MM |
| Material (GYROLOK series) | Material code in the [ ] of the part number: brass BR, 304/304L stainless steel, 316/316L stainless steel, Monel M, Hastelloy C-276 HC, Duplex 2205 DX3, Inconel Alloy 625, Inconel Alloy 825, Super Duplex 2507 D50, titanium TI, 254 SMO 6MO (available materials may vary by fitting type and size) |
| Dimensions (inches) by Tube O.D.: Overall Length A, Nut Hex Flats B | 1/16": A 1.50, B 5/16 / 1/8": A 2.13, B 7/16 / 3/16": A 2.22, B 1/2 / 1/4": A 2.34, B 9/16 / 3/8": A 2.56, B 11/16 / 1/2": A 2.94, B 7/8 / 5/8": A 2.94, B 1 / 3/4": A 3.19, B 1 1/8 / 7/8": A 3.41, B 1 1/4 / 1": A 3.95, B 1 1/2 / 1 1/2": A 5.48, B 2 1/4 / 2": A 7.10, B 3 |
| Dimensions (mm) by Tube O.D.: Overall Length A, Nut Hex Flats B | 3 mm: A 56.3, B 11.1 / 4 mm: A 58.1, B 12.7 / 6 mm: A 60.8, B 14.3 / 8 mm: A 64.0, B 15.9 / 10 mm: A 64.2, B 19.1 / 12 mm: A 74.7, B 22.2 / 14 mm: A 69.6, B 23.8 / 15 mm: A 72.5, B 23.8 / 16 mm: A 74.7, B 25.4 / 18 mm: A 78.7, B 28.6 / 20 mm: A 92.0, B 31.8 / 22 mm: A 89.0, B 31.8 / 25 mm: A 100.7, B 38.1 |
| Panel Hole Size / Max. Panel Thickness (inches) | 1/16": hole .20, thickness 11/32 / 1/8": hole .33, thickness 7/16 / 3/16": hole .39, thickness 15/32 / 1/4": hole .45, thickness 15/32 / 3/8": hole .58, thickness 17/32 / 1/2": hole .77, thickness 19/32 / 5/8": hole .89, thickness 9/16 / 3/4": hole 1.02, thickness 21/32 / 7/8": hole 1.14, thickness 25/32 / 1": hole 1.33, thickness 1 1/32 / 1 1/2": hole 1.95, thickness 3/4 / 2": hole 2.64, thickness 3/4 |
| Panel Hole Size / Max. Panel Thickness (mm) | 3 mm: hole 8.3, thickness 12.0 / 4 mm: hole 10.0, thickness 12.0 / 6 mm: hole 11.5, thickness 13.0 / 8 mm: hole 13.1, thickness 14.0 / 10 mm: hole 16.5, thickness 14.0 / 12 mm: hole 19.5, thickness 16.0 / 14 mm: hole 21.0, thickness 16.0 / 15 mm: hole 21.0, thickness 16.0 / 16 mm: hole 22.5, thickness 14.0 / 18 mm: hole 26.0, thickness 17.0 / 20 mm: hole 29.0, thickness 20.0 / 22 mm: hole 29.5, thickness 24.0 / 25 mm: hole 33.8, thickness 24.0 |