Rotary Valves

Rotary Valve Design, Manufacture & Refurbishment

Rotary valves are a core focus of Avweld's operations, backed by over 30 years of industry experience in design, manufacture, and refurbishment. Avweld is paramount in the repair of Heavy Duty Drop-Through and Blow-Through Rotary Valves in Australia, offering everything from simple rebuilds through to complete overhaul.

What types of rotary valves does Avweld repair?
Avweld specialises in the repair of Heavy Duty Drop-Through and Blow-Through Rotary Valves, offering everything from simple rebuilds to complete overhaul.

What is the AV100 upgrade for rotary valves?
The AV100 upgrade features Tungsten Carbide coating of the stator bore, hardfacing of the rotor tips, and spring loading of the seal rings, delivering a significant increase in service life over standard components.

How much longer do AV100-upgraded rotary valves last?
AV100 upgrades have given an increase of 4 to 8 lifetimes over hard chrome bores and 420SS vane edges.

What specific improvements does Avweld make to rotary valve performance?
Improvements include reduced rotor to stator clearance, modified sweepers to reduce blocking on end plates, spring loaded seal rings, and upgraded hardfacing of rotor vanes and stator bore.

How long has Avweld been working on rotary valves?
Rotary valves have been a core focus of Avweld's operations for over 30 years, covering design, manufacture, and refurbishment.

Our Rotary Valve Upgrades

Avweld's rotary valve improvements include:

- Reduced rotor to stator clearance — improving sealing performance and reducing material bypass
- Modified sweepers — reduced blocking on end plates for more reliable operation
- Spring loaded seal rings — improved sealing consistency over the life of the valve
- Upgraded hardfacing of rotor vanes and stator bore — extending wear life at the points of greatest wear

AV100 Signature Upgrade

Avweld's most significant upgrade package features AV100 Tungsten Carbide coating of the stator bore, hardfacing of rotor tips, and spring loading of the seal rings. These improvements have delivered an increase of 4–8 lifetimes over hard chrome bores and 420SS vane edges. Avweld has achieved its leading position in this space by offering quick turnaround, top quality, state-of-the-art upgrades — all at modest prices.

Our Solutions

Super Heavy-Duty Design	Engineered for extreme operating conditions, ensuring reliability and long service life.
New Manufacture & Reclamation	Custom-built rotary valves and full refurbishment of existing units to restore or exceed original performance.
Expert Consulting & Support	Practical advice on valve selection, setup, and operation to maximise efficiency and lifespan.
Advanced Wear Components	Tungsten carbide applied to rotor vanes, housing bores, and seal journals for superior wear resistance.
Precision Engineering	Diamond-ground components ensure accurate clearances and optimal sealing performance.
"Set and Forget" Reliability	Designed for minimal maintenance with long-term operational stability.
Heavy-Duty Components	Oversized motors and bearings for enhanced durability under high loads.