These very high pressure, zero-dead-volume (ZDV) unions are precision machined from 316 stainless steel, carefully passivated, then thoroughly rinsed. Each comes complete with stainless steel nuts and ferrules. It is supplied with fittings for 1/16 inches outer diameter or 1/8 inches outer diameter tubing. Union assemblies have a pressure rating of 20,000 psi (1,380 bar) or higher.
VHP Stainless Steel Unions are precision machined from 316 stainless steel. Our mechanically strong and reliable union offers zero dead volume (ZDV) allowing tubing to be joined without interrupting the fluidic path.
List of available VHP Stainless Steel ZDV Union Assemblies
Thread Port Configuration | Swept Volume | Thru hole | Pressure Rating Max | For tubing outer diameter |
10-32 Coned | - | 0.020 inches/0.50 mm | 20000 psi/1380 bar | 1/16 inches |
10-32 Coned | - | 0.007 inches/0.17 mm | 20000 psi/1380 bar | 1/16 inches |
10-32 Coned | 20 nL | 0.010 inches/0.25 mm | 20000 psi/1380 bar | 1/16 inches |
10-32 Coned | 0.84 nL | 0.050 inches/1.25 mm | 20000 psi/1380 bar | 1/16 inches |
10-32 Coned | 13 nL | 0.007 inches/0.17 mm | - | 1/16 inches |
10-32 Coned | True ZDV - near 0 nL | 0.062 inches/1.55 mm | 20000 psi/1380 bar | 1/16 inches |
List of available VHP Stainless Steel ZDV Union Bodies
Thread Port Configuration | Swept Volume | Thru hole | Pressure Rating Max | For tubing outer diameter |
10-32 Coned | True ZDV - near 0 nL | 0.062 inches/1.55 mm | - | 1/16 inches |
10-32 Coned | - | 0.010 inches/0.25 mm | 30000 psi/2070 bar | 1/16 inches |
Our ZDV Union Assembly is SSI, Waters or Valco Compatible and precision machined from 316 stainless steel. Our mechanically strong and reliable union offers zero dead volume (ZDV) allowing tubing to butt up against each other without interrupting the fluidic path.
List of available specifically designed VHP Stainless Steel ZDV Union Assemblies
Thread Port Configuration | Swept Volume | Thru hole | Pressure Rating Max | For tubing outer diameter |
10-32 Coned (Valco Compatible) | 0.15 µL | 0.020 inches/0.50 mm | 20000 psi/1380 bar | 1/16 inches |
1/4-28 Coned (SSI Compatible) | - | 0.020 inches/0.50 mm | 20000 psi/1380 bar | 1/16 inches |
10-32 Coned (Waters Compatible) |
- | 0.020 inches/0.50 mm | 20000 psi/1380 bar | 1/16 inches |