Rotary Valves
Anval RL Series Rotary Airlock & Feeders [RLX +ATEX] [drop through]
The RL Series valves are a simple, stable, elegant and plug-'n'-play rotary airlock and feeder — the embodiment of Anval's simple design solutions, offering low maintenance and off-the-shelf airlocks for a wide range of dust-collection applications.
Design: cost-effective and robust, with a simple, plug-'n'-play approach.
Sizes: available in opening sizes from 150 mm to 300 mm, with Universal Flanges to suit both square and circular mating flanges.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure across the system.
Construction: single-piece cast design with all the advantages of cast iron over traditional mild steel, including superior corrosion resistance, better wear properties and thermal stability.
Capacity: handles a maximum capacity of 33.6 m³/hr.
Anval RH Series Heavy Duty Rotary Valves — Robust and Versatile [RHX +ATEX] [drop through]
Heavy-duty rotary valve airlocks & feeders for challenging applications. The RH Series serves an extensive range of uses — from heavy minerals industries to light agricultural applications — and performs even under harsh operating conditions, handling everything from heavy mineral lumps to light dust with minimal maintenance.
Construction: single-piece cast design that, unlike competitors, reduces the number of seams exposed to wear, letting the valves operate under the toughest conditions.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure across the system.
Materials: all the advantages of cast iron over traditional mild steel, including superior corrosion resistance, better wear properties and thermal stability; also available in cast steel and other alloys for high-temperature, high-wear and high-pressure environments.
Sizes & drive: opening sizes from 150 mm to 750 mm, available in direct-driven, chain-driven or bare-shaft arrangements, and customizable to specific application requirements.
Industries: ideal for chemicals, food, steel, cement, wood, power and mineral processing plants.
Anval RFS Series Rotary Floating Shoe Valves — Tough, Ceramic-Embedded [RFSX +ATEX]
[drop through]
The metering solution for high-wear, high-temperature and high-pressure applications. The RFS Series delivers unmatched performance as an airlock in high-wearing duties, lasting up to four times longer than conventional rotary valves and offering exceptional value on abrasive products such as alumina, iron ore, cement, coal, fly ash and mineral sands.
100% positive sealing: a "floating shoe" slides tightly into the main body top-port flange and rides onto the rotor by gravity, forming a mechanical seal with a clearance measured in microns.
Maintenance without shutdown: the sacrificial, hardened SG-iron adjustable shoe handles up to 10 mm of wear and can be adjusted externally while in operation to keep that micron-level clearance at all times.
Long service life: achieved through ceramic-embedded rotor ends on all leading surfaces of the blades and end plates — designed to need very little maintenance over its service life.
Independently proven: rigorous wear tests by the University of Western Australia's School of Mechanical Engineering on the ceramic / spheroidal-graphite-iron interface concluded that RFS valves can transport even the most aggressive products and still have a lifecycle of years instead of months.
Construction & sizes: single-piece cast iron, opening sizes from 250 mm to 750 mm, robust, rigid and durable, and customizable to specific application requirements.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure.
Compliance: CE marked and in compliance with applicable global health & safety requirements.
Anval RSC Series Self-Cleaning Dual Rotary Valves — For Non-Free-Flowing Solids [drop through]
Self-cleaning dual rotary valves built to handle sticky, viscous, slow or non-free-flowing bulk solids. Where most conventional valves can't cope with sticky, viscous and non-flowing materials, the RSC Series' dual-rotor design is well suited to any high-moisture product application.
Self-cleaning dual-rotor action: a secondary rotor scrapes and mechanically empties the pockets of the primary rotor, with the two rotor movements synchronised — smoothing material flow, increasing operational efficiency and reducing downtime.
Drive: a geared motor drives the primary rotor through the shaft, while the secondary rotor runs off a synchronised chain transmission for an easy wiping action that keeps material flowing.
Construction: complete cast construction with internal surfaces machined to high precision; the primary rotor comes with a scalloped type as standard.
Ideal materials: animal by-products, clay, starch, active ingredients, fertiliser, pulp, fibres, sludge, salt and similar high-moisture products.
Sealing & air-lock: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure — with close radial and axial clearances for superior air-locking.
Compliance: CE marked and designed in compliance with all applicable Machinery Directive requirements.
Anval RE Series Easy-Clean Rotary Airlock Valves — For Hygienic Dairy Applications [drop through]
Tool-less, quick-and-easy-clean rotary airlock valves for dairy applications where frequent, fast cleaning of the valve internals is necessary. The RE Series suits contamination-sensitive duties that require frequent disassembly and cleaning, and is specifically designed for hygienic dairy, food and chemical applications.
Tool-less cleaning: internal components can be safely removed as a single piece without tools for quick, easy cleaning — eliminating the time-consuming opening and reassembly steps of a long maintenance routine.
Automatic re-engagement: on reassembly, the rotor engages automatically with no complex adjustments and retains the original clearance values.
Hygienic construction: fully cast single-piece stainless steel, made by the lost-wax process, with mirror-finish internals machined to high precision to resist corrosion, rust and staining, and free of dead spots to keep material uncontaminated.
Easier cleaning / efficiency: the mirror-finish internals make cleaning easier and more effective, improving operational efficiency when handling sticky, cloggy and hygroscopic products.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure.
Sizes & precision: opening sizes from 150 mm to 300 mm with circular flanges, and rotors manufactured to a close radial and axial clearance of 0.20 mm (max).
Compliance: CE marked and designed in compliance with applicable global health & safety requirements.
Anval RMF Series — The Heavy-Duty, Tough and Wear-Resistant Airlock | Larger Rotary Valves for Mill Feeding [drop through]
Anval's larger rotary valves are specifically designed for mill-feeding applications, playing a crucial role in the efficient, reliable transfer of bulk materials in milling operations. They suit applications needing a controlled, continuous flow of larger and irregular shapes in mills or grinding equipment, and are engineered with precision and durability to withstand abrasive and wet materials. These "Air Sluice" valves prevent material leakage and ensure smooth, uninterrupted flow, while also allowing hot air to be applied to remove moisture from the bulk solids.
RMF Series Rotary valves are available in different construc ons to cater the various applica on requirements:
Conventional rotary valve construction
Replaceable wear-plates construction
Rotary Floating Shoe (RFS) construction
Rotary Self-Cleaning (RSC) construction
Robust construction for durability and longevity, with hard-faced rotor edges for longer life and wear resistance.
RFS construction for optimum wear resistance, with a wear-resistant floating shoe for optimum sealing.
Drive options: direct drive, chain drive or inline drive.
Replaceable labyrinth seals.
Hot-air provision to remove moisture from solids, plus an optional self-cleaning system for high-moisture applications.
Easy installation, minimal maintenance, and customizable to specific requirements.
Anval RS Series Rotary Valves — Hygienic & Corrosion-Resistant [drop through]
The RS Series is a highly hygienic, corrosion-resistant rotary valve for food, pharmaceutical and chemical applications. Built in complete cast stainless steel by the lost-wax process, with internal surfaces machined to high precision, it is ideally suited for chemical, plastic, animal feed, metallurgy, flour-mill and other food and pharmaceutical industries.
Hygienic construction: cast stainless steel with mirror-finish internals, ideal for sticky, cloggy and hygroscopic applications.
Sealing & precision: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure — with rotors machined to a close radial and axial clearance of 0.20 mm (max).
Sizes: opening sizes from 150 mm to 300 mm, with Universal Flanges to suit both square and circular mating flanges.
Drive options: direct drive, chain drive or inline drive; alternatively available as bare shaft.
Robust & customizable: robust, rigid and durable, and customizable to specific application requirements.
Compliance: CE marked and compliant with applicable global health & safety requirements, and also available in compliance with the ATEX Directive.
Anval RC Series Heavy Duty Rotary Valves — With Circular Opening [drop through]
Heavy-duty rotary valve airlocks & feeders with a circular opening for challenging applications. The RC Series is designed for a wide range of uses — from heavy mineral lumps to light dust — and operates under the toughest conditions with minimal maintenance.
Construction: single-piece cast design that, unlike competitors, reduces the number of seams exposed to wear.
Materials: all the advantages of cast iron over traditional mild steel, including superior corrosion resistance, better wear properties and thermal stability; also available in cast steel and other alloys for high-temperature, high-wear and high-pressure environments.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure.
Sizes & drive: opening sizes from 250 mm to 400 mm, available in direct-driven, chain-driven or bare-shaft arrangements, and customizable to specific requirements.
Industries: ideal for chemicals, food, steel, cement, wood, power and mineral processing plants.
Anval BH Series Blow-Through Valves — Robust, High Efficiency
The BH Series is a blow-through valve designed specifically for pneumatic-conveying systems and best suited to non-abrasive products. It's a highly efficient valve that ensures smooth material flow while significantly reducing pressure loss.
Construction: single-piece cast iron with internal surfaces machined to high precision, ideally suited for pneumatic conveying — best suited to food, flour, grain, plastic, chemical, pharmaceutical and milling industries.
Superior air-locking: rotors manufactured to a close radial and axial clearance of 0.10 mm (max) for better air-locking.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure.
Sizes: opening sizes from 150 mm to 350 mm, with Universal Flanges to suit both square and circular mating flanges.
Robust & customizable: robust, rigid and durable, and customizable to specific application requirements.
Compliance: CE marked and compliant with applicable global health & safety requirements.
Anval BS Series Blow-Through Valves — Hygienic & Corrosion-Resistant [blow through]
The BS Series is a hygienic, corrosion-resistant blow-through valve built for the toughest pneumatic-conveying applications in the food, pharmaceutical and chemical industries. Made in complete cast stainless steel by the lost-wax process, with internal surfaces machined to high precision, it is ideally suited for pneumatic conveying of chemicals, polymers, animal feed, metallurgy, flour-mill and other food and pharmaceutical products.
Hygienic construction: cast stainless steel with mirror-finish internals, ideal for sticky, cloggy and hygroscopic applications.
Superior air-locking: rotors manufactured to a close radial and axial clearance of 0.10 mm (max) for better air-locking.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure.
Sizes: opening sizes from 150 mm to 300 mm, with Universal Flanges to suit both square and circular mating flanges.
Robust & customizable: robust, rigid and durable, and customizable to specific application requirements.
Compliance: CE marked and compliant with applicable global health & safety requirements, and also available in compliance with the ATEX Directive.
Slide Gates
Anval SG Series Slide Gate Valves — Robust & Heavy-Duty for Isolation Duty [slide gates]
Robust slide gate valves for absolute isolation in solids applications. The SG Series is designed to shut off product flow from the outlets of storage bins, silos, conveyors and other discharge points handling dry bulk materials — compact in design, robust in structure, and easy to install and operate. These heavy-duty valves handle bulk material flow on a continuous or intermittent basis depending on the process, and can be bolted directly into the flow-line in any position.
Efficient isolation: the valve blade glides into its seat on cam rollers to isolate solids efficiently.
Pressure-tight sealing: a "Trigger Lock" mechanism seals the blade perfectly against the seat for pressure-tight support and better sealing.
Construction & sizes: single-piece cast iron body as standard, in opening sizes from 350 mm to 750 mm.
Operation: handwheel-operated, or coupled with twin pneumatic or hydraulic rams; further customizable to application requirements.
Compliance: CE marked and compliant with applicable global health & safety requirements.
Anval SL Series Slide Gate Valves — Robust & Cost-Effective for Isolation Duty [slide gates]
Simple, robust slide gate valves for isolation in solids applications. The SL Series is designed to shut off product flow from the outlets of storage bins, silos, conveyors and other discharge points handling dry bulk materials — simple, compact in design, robust in structure, and easy to install and operate. These valves handle bulk material flow on a continuous or intermittent basis depending on the process, and can be bolted directly into the flow-line in any position, provided the material flow is correctly aligned using the adjustable inner chutes.
Efficient isolation: the valve blade glides into its seat on cam rollers to isolate solids efficiently.
Clean, leak-minimal flow: a pressure-tight support frame ensures minimal leakage and no clogging while material flow stays free.
Construction & sizes: mild steel as standard, in opening sizes from 150 mm to 300 mm; larger sizes and other steel grades available to suit the application.
Operation: handwheel-operated, or coupled with pneumatic or hydraulic rams.
Compliance: CE marked and compliant with applicable global health & safety requirements.
Dump Valves
Anval DH Series Dump / Flap Valves — Tough, High Efficiency [dump valves]
Dump / flap valves — the ideal companion for air-locking and feeding under vacuum or pressure when handling irregular shapes. The DH Series was developed to give the bulk-material handling industries a versatile, low-cost air-locking solution that discharges bulk solids of irregular shapes or lumps while restricting the backflow of air.
Vacuum or pressure duty: works effectively under either vacuum or pressurized conditions, designed for total sealing and continuous, uninterrupted discharge with long service life and minimal maintenance.
Double-flap action: two flaps in a housing operate alternately — one closes to collect material while the other opens to discharge it.
Sealing: labyrinth seals ensure perfect sealing of the rotating shaft and zero leakage through the shaft ends — effective even with highly abrasive products and under high pressure.
Construction & sizes: cast iron as standard, in opening sizes from 150 mm to 350 mm; larger sizes can be fabricated to suit the application. Robust, rigid, durable and customizable.
Operation: runs on gravity (no power or external actuation), or via pneumatic rams or a geared motor.
Compliance: CE marked, ATEX certified and compliant with applicable global health & safety requirements.
