Spray Bar Construction

For operations using raw water or water-based coolants, USC provides stainless steel valve assemblies and stainless steel header manifolds. While oil-based coolants use valve assemblies made of stainless steel and aluminum with a carbon steel header.

To the right is a spray bar for oil-based coolant with the 56LPM (litre per minute) series spray valves.

  1. Header Manifold
  2. Wire Harness
  3. Nozzle Plate
  4. Double Row Spray Valve




The cut-away shown to the right, illustrates the two chambers of the header manifold and how the USC Spray Valves may be installed and serviced from the nozzle side of the system.

  1. Nozzle Plate
  2. Wire Harness
  3. Single Row Spray Valve
  4. Header Manifold
  5. Wireway Chamber
  6. Coolant Chamber


System Components
The USC spray bars feature independent chambers for coolant supply, electrical connections and, in some cases, a pilot air chamber. All headers are customized for each system.

Nozzle plates are fed from the valve assemblies which contain the valve and the electrical connection for control. One, two or three valves can be mounted on each spray zone.

All O-rings and fasteners on the valve assembly are designed to ensure proper sealing and prevent loss of components during installation and removal. Plus, valve assemblies and nozzle plates are easily installed and removed with just a hex wrench. There are no loose parts in the valve assemblies and nozzle plates.

The nozzle plates direct the fluid from the valve assembly to the nozzle. VeeJet® nozzles are placed to optimize performance using the USC SPA (Spray Pattern Analysis) modeling software program.