Overview
Three-way chemical priming valve. CCW part code NM3005.
A three-way valve on a chemical circuit does one job that matters: it lets you select between the chemical supply and a second source — normally clean water — without breaking the line. That is what makes priming and flushing a one-hand operation rather than a strip-down.
What we can verify — and what we cannot
This item has no description, no verified specification and no supplier documentation in CCW's records, and we have not been able to locate it in the HydraMaster parts documentation we hold.
We are not going to invent a specification for it. What we cannot currently state:
- Port sizes and thread type
- Body and seal materials
- Pressure and temperature ratings
- Which machines it is fitted to
Please contact us before ordering. Tell us what you are fitting it to and what you need it to do, and we will confirm the specification against the supplier — or point you at a part we can stand behind. We have this item on our list for supplier clarification and this page will be updated when we have an answer.
Why priming and flushing matter on a chemical circuit
Chemical injection systems fail in two predictable ways, and both are preventable.
Air in the line. A chemical pump that has been run dry, or a line that has been opened, will not restart reliably until the air is out. Without a way to prime, that means chasing the air through the system with the machine running.
Chemistry left in the line. Detergent left standing in a chemical circuit overnight — particularly anything alkaline, and anything that dries hard — is what kills metering pumps, flow meters and injectors. Flushing through with clean water at the end of the day is the single cheapest piece of maintenance on the machine, and a three-way valve is what makes it quick enough that people actually do it.
If your machine has one fitted, use it. If it does not, that end-of-day flush is still worth doing the slow way.
Frequently asked questions
What are the port sizes?
Not stated in our records. Ask us before ordering.
What is it compatible with chemically?
We cannot confirm the seal materials, so we cannot answer this. If you are running anything aggressive, ask us first — the wrong elastomer in a chemical circuit fails quickly.
Which machines does it fit?
Not verified. Tell us your machine and we will check before you order.
Why is there so little information on this page?
Because we would rather tell you what we do not know than publish a specification we cannot verify. Ask us and we will get you a real answer.
Tell us the machine and what you are trying to achieve and we will confirm the correct valve before you order.
