Built tothe code.
Custom engineered diaphragm valves, made in the United States.
Valves since 1932 and nearly 100 years of dependable craftsmanship.
Lead time 5-7 days
When you call, you'll speak directly with the engineers that designed your hardware.
Your stock readout appears here.
Chip values and stock records from the AQ Matic 2026 catalogue. Unmatched codes are not quotes.
Five industries.
Every specification matters.
From irrigation equipment to water treatment automation. Find the valves and controls for your application.
IrrigationReliable valves that are reliably available.V42 family
0.75 to 6 in
Get peace of mind and grow your business with a valve supplier that delivers quality valves when you need them.
V42 family: 0.75 to 6 in. Cast iron or cast brass.
Irrigation systemsMissing irrigation part slowing you down? Give us a call now for instant help. 262-326-0100
Water filtrationTap into decades of expertise.K52 family
0.5 to 2.5 in
At AQ Matic, we've been making valves since 1932. When you call our service line, you'll speak directly with the team that produced your valve.
K52 family: 0.5 to 2.5 in. Glass-filled thermoplastic.
Water filtrationAbrasive media blastingCustom valves delivered on your timeline.Catalogue sizes
0.5 to 6 in
Our core products are form factor consistent.
Durable valves designed to specification for demanding environments.
Abrasive media blastingAir dryer systemsCustom engineered valves you can trust.VAV family
0.75 to 4 in
Get custom-built valves for your air dryer systems and take advantage of nearly 100 years of engineering expertise when you partner with AQ Matic.
VAV family: 0.75 to 4 in. Positive closing without springs.
Air dryer systemsInternet connected devicesWork smarter with water treatment automation.WiFi sensors
24/7 monitoring
Our WiFi-enabled sensors monitor equipment 24/7 to detect leaks, predict when maintenance is needed and send alerts to dealers, homeowners and business owners so they can take action before a system fails.
Our interface can be accessed on any device, whether you're in the office or out on a service call.
Water treatment automationThe six valves.
Metal or glass-filled thermoplastic. A family for the fluid, the application and the service it needs.
Real AQ Matic product photographs.
Choose a family to view its catalogue.
The drawing goes in.
Your valve comes out.
In-house CAD design, holding fixtures made using your blueprints, and tooling made at AQ Matic. Every part is hand-crafted right here at AQ Matic.

In-house CAD designCustom holding fixtures for your parts, using your blueprints.
In-house toolingProduct design, development and modification without outside tooling delays.
Ferrous + non-ferrousCastings and supporting components, machined at AQ Matic.
How it works.
Talk through the application with the people who design the hardware.
- 01
Schedule an exploratory call with our team to discuss your specific needs.
- 02
We'll outline the project specifications and send drawings for you to review.
- 03
We then provide a custom solution and engineering services, so you get the exact valves you need.
Send us the drawing.
Have you received a large order from somewhere but the specifications were off by just enough that the product is not usable?
Or, do you need a custom solution designed for your specific application? We can help!
Don't have a model?
We can help you make it.
600 part numbers.
$0.40 screw to a $24,419.78 filter kit. 565 of them have no photo yet, so we print the code.