Product categories
- AIR MACHINE ACCESSORIES, FITTINGS AND VAC REPLACEMENT PARTS
- HYDRAULIC HOSE FERRULES - FERRULES MANUFACTURER
- INDUSTRIAL AND AUTOMITIVE COUPLERS & CONNECTORS
- PNEUMATIC BLOW GUN KITS AND BLOW GUN PRODUCTS
- PNEUMATIC HOSES
- PNEUMATIC, AUTOMOTIVE HOSE CRIMPERS AND DIES
- TIRE INFLATOR CHUCKS AND AIR FITTINGS
- TIRE INFLATOR GAUGE PRODUCTS
- Uncategorized
- VALVES PARTS PRODUCTS
- WATER BIBBS AND UTILITY WATER NOZZLES
Top rated products

Why Choose Diamond-U’s Closed Flow Air Chucks?
For more than 100 years, Diamond-U has established a leading industrial parts manufacturer’s reputation. We pride ourselves in helping technicians worldwide find the quality products they need for their pneumatic system operations. Whether you want to purchase one or thousands of closed flow air chucks, we’ve got you covered at Diamond-U Products Inc. Additionally, we offer customized pneumatic products to meet your unique business needs.
What is a Closed Air Chuck?
A closed air chuck only lets out air once the air chuck depressor pin engages with a tire stem. They are ideal for technicians who require air service without the need to control tire pressure. Since most fittings are designed as closed flow, closed air chucks have become predominant in modern industrial applications.
What is the Difference Between Open and Closed Air Chuck?
Unlike the closed air chucks, where passage only occurs once engaged with the tire stem, open-air chucks will allow air to flow once you turn on the air compressor. Open-air chucks work perfectly with filler gauges that allow the user to control tire pressure like Diamond-U’s standard inflator gauge.
Types of Closed Flow Air Chuck that Diamond-U offers
Whichever air chuck can meet your given need, Diamond-U is here to meet your demand. You will also rest assured that the closed air chuck you pick will last for years since they are designed to hold up the high pressure needed in most industrial applications.
Order Your Closed Air Chucks Now!
Do you need quality closed air chucks for your next project? Diamond-U has the solution you need. Check out our product line to discover more and buy our products today!