In plants like these, dozens of rotary valves run continuously across more than 20 transfer points. Anval's premium solutions improve the reliability of each one, reducing downtime and lowering your total cost.
"We are proud to be the preferred valve supplier for the world's leading cement, mining and bulk-material-handling companies."
Rotary Valves
Anval has built a strong reputation as the market leader in the design, manufacture and supply of rotary airlock valves. Born from the Australian thermal-processing specialist Ansac, Anval draws on over 45 years of industry experience to deliver the highest-quality equipment into some of the most demanding applications in the world.
To meet the increasingly demanding needs of its customers, Anval has continuously developed its product range to reach more than 100 configurations. From acidic powders to raw coal, from sticky biomass to abrasive alumina, Anval's engineering teams have built today's depth of expertise by taking every material- and process-related challenge into account.
Committed to customer satisfaction, Anval not only provides an effective design solution but also ensures spare-parts supply and full service support throughout the product's lifetime. Our products and solutions have proven themselves across a wide range of industries and in some of the most demanding applications.
As BtE, Anval's representative in Turkey, we are here to listen to you and to bring you our solutions focused on reducing your total cost of production.
Özgür Tanrıverdi
Founder / Biomasstoenergy.com


45 years of experience
100+ configurations across 3 valve categories
Rotary Valves
Slide Gates
Dump / Flap Valves
Built for irregular, lumpy material.
Works in vacuum or pressure.
Two flaps, alternating.
Zero leakage through the shaft ends.
Built for abrasive, lumpy feed
Holds the seal under pressure and heat
Single-piece cast iron, 150 – 2000 mm
Proven on clinker
Absolute isolation
Trigger Lock mechanism
Single-piece cast iron, 350–750 mm
Handwheel, pneumatic or hydraulic
Anval Solutions
Drop Through: RL, RH, RFS, RSC, RE, RMF






Blow Through: BH, BS




Slidge Gates: SG, SL




Dump Valves: DH


















