WAM Rotary Valves

• Tight airlock every cycle – cast-iron housings and machined rotors stop product blow-back better than most generic rotary airlock valves.

• Ready for harsh blends – from cement to fly-ash, the chrome-plated internals shrug off abrasion and heat.

• Drop-in to existing lines – ISO flange patterns match common cement silo parts and concrete batching plant parts; no torch-cut retrofits.

• Drop-Through Rotary Valve – gravity feeds mixers and screw conveyors without bridging.

• Blow-Through Rotary Valve – inline with a pneumatic conveying line for longer runs.

• Hydraulic Rotary Control Valve kits – swap-in packs with motor, couplings and rotary valve seal.

• Service Spares – end plates, vane tips, bearings, and complete rotary valve parts boxed and labelled for fast change-outs.

​Whether you run a wet-cast precast factory or a high-output ready-mix site, these valves meter cement, lime, or pigments straight into your mixer without pressure spikes. Integrate them under a silo cone, above a rotary butterfly valve, or between twin screw conveyors—the rotor keeps turning, the line keeps moving.

A WAM rotary airlock feeder bridges storage and transfer: it doses cement, fly-ash, or pigment without pressure loss, slotting neatly into new or legacy bulk solids handling equipment. The rotor’s tight tolerances mean less blow-by, so blowers work more easily and filters stay cleaner. In wider bulk solid processing equipment, such as dry-mix plants, asphalt works, and even food additives, the valve maintains density changes in check, ensuring a steady kg/h rate regardless of the fineness or coarseness of the bulk solid materials. Add it beneath a silo, at a diverter, or just upstream of your screw pump; flow stays even, energy costs drop, and maintenance is a simple rotor pull-out instead of a full line shutdown.

Ask for a quote on WAM products today, single valve or full pallet. We pull the spec sheet, confirm compatibility, and ship the right WAM rotary valves plus any WAM spare parts you need, so production never stalls. Your rotary airlock feeds like clockwork—team it with Screw Conveyors upstream, Butterfly Valves and Pressure Relief Valves on the silo, Dust Filters for EPA compliance, Actuators for hands-free control, and genuine WAM Spare Parts to stay on spec season after season.