Donut Manifold System
![](https://cdn.shopify.com/s/files/1/2100/2323/files/02-091918-Donut-Manifold-Assembly.gif?v=1565288774)
![](https://cdn.shopify.com/s/files/1/2100/2323/files/MX-7-Donut.jpg?v=1565289012)
![](https://cdn.shopify.com/s/files/1/2100/2323/files/02-CG-Donut-Manifold-Installation-1.jpg?v=1565289148)
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
![Donut Manifold Assembly](http://cdn.shopify.com/s/files/1/2100/2323/files/02-091418-Donut-Manifold-Animation-Step-1_c104aaaa-20ad-4151-b5d6-cc29817131e1_grande.gif?v=1537298624)
![Relief Groove](http://cdn.shopify.com/s/files/1/2100/2323/files/Donut-Manifold-Valley_c994fbb9-b9ff-470b-82cf-28fc95e58b6c_medium.jpg?v=1504704465)
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.
![Donut Manifold Assembly](https://cdn.shopify.com/s/files/1/2100/2323/files/02-091818-6in-Donut-Manifold-Assembly_fa2e87d4-f872-4ece-b61d-eaea6beef93e.jpg?v=1549896366)
![](http://cdn.shopify.com/s/files/1/2100/2323/files/Donut-Manifold-Step-2_grande.jpg?v=1504818815)