Donut Manifold System
A modular manifold system that allows multiple nozzles to be fitted to a single NPT port, with rotation clamping. The manifolds allow the Nozzle Tube System, Generic Nozzles and the Grind-Loc System to be grouped in front of the grinding wheel. The Donuts are slid over a cross-drilled ported tube of the desired length. 3/8” system donuts fit over 3/8” NPT ported tubes, 1/2” system donuts fit over 1/2” NPT ported tubes, and 3/4” system donuts fit over 3/4” NPT ported tubes. The Active Donut female thread is one size smaller than the ported tube diameter that it slides over.
How it works
After taking approximate measurements of where the nozzles should be located on your machine, you can decided the length & amount of nozzles that are required. When assembling the donut manifold, simply thread the ported tube to your coolant output, then slide the donuts needed onto the ported tube (active donuts should have the desired nozzles pre-installed before sliding donut onto ported tube). To finalize the assembly, simply thread the sealed cap onto the end of the ported tube. We have active donuts and blank donuts to accommodate the ideal nozzle position.
The active donuts have a relief groove on the inside, to allow coolant flow in any angular orientation. Therefore, the nozzle doesn't need to be aligned with the port.
The active donuts have a relief groove on the inside, to allow coolant flow in any angular orientation. Therefore, the nozzle doesn't need to be aligned with the port. The donut manifold is compatible with all Cool-Grind NPT nozzles. The NPT for the 3 systems are as follows: 3/8" uses 1/4" NPT. 1/2" uses 3/8" NPT & 3/4" uses 1/2" NPT.
