FUWEI INDUSTRY SOLUTIONS

Rotary Airlock Valves for Plastics & Resin Processing

Convey plastic pellets, regrind, masterbatch and resin powders with stable metering and dependable airlock sealing. FUWEI rotary feeders integrate with silos, extruder feeding and pneumatic conveying systems.

20+ Years
Manufacturing experience

OEM & ODM
Custom engineering

ISO9001 & CE
Certified supply

Rotary Airlock Valves for Plastic Pellets, Resin Powder and Regrind

For plastic processing and recycling lines, the rotary valve must keep stable metering while reducing leakage, dust escape, pellet breakage and material bridging. FUWEI can customize rotor structure, sealing type, surface treatment and flange dimensions according to pellets, regrind, masterbatch or resin powder.

Application	Selection Focus
Plastic pellets and masterbatch	Gentle discharge, stable rotor speed and anti-static consideration.
Resin powder	Dust sealing, pressure balance and anti-stick surface treatment.
Regrind and recycled flakes	Large inlet transition, anti-bridging design and wear-aware clearance.

For sizing support, see the rotary airlock valve sizing guide or send material density, particle size and required capacity to FUWEI.

Process Requirements

Typical materials: Plastic pellets, regrind, masterbatch, polymer powder, additives and resin granules.

Application challenge: Bulk density, particle shape, static tendency and softening temperature influence rotor filling, clearance and drive selection.

FUWEI recommendation: Match rotor speed, pocket size, surface treatment and body material to the resin and conveying pressure.

Recommended Valve Configurations

Particle form	Pellet, regrind or powder characteristics confirmed before sizing
Temperature	Clearance and seal material selected for process temperature
Static control	Grounding and project-specific anti-static measures when required
Connection	Round or square flange matched to silo and conveying equipment

Recommended FUWEI Products

Final model selection should confirm material name, bulk density, particle size, moisture, required capacity, temperature, pressure difference, flange standard and motor requirement.

Explore Other Industries

Chemical & Pharmaceutical Feed & Pet Food Food Processing New Energy Power & Construction

Rotary Valves for Waste Plastic, Ocean Plastic & Resin Recycling

FUWEI rotary airlock valves are used for plastic pellets, resin powder, regrind, recycled plastic flakes, masterbatch and waste plastic conveying. For recycling lines, the valve should be selected according to material shape, bulk density, moisture, dust content, static tendency, softening temperature and whether the process uses gravity discharge or pneumatic conveying.

Material Challenges in Plastic Recycling

Material	Typical Issue	Valve Configuration Focus
Waste plastic flakes	Irregular shape, bridging and inconsistent bulk density.	Rotor pocket design, inlet transition and stable low-speed feeding.
Ocean plastic recycling material	Moisture, fines, contamination and uneven particle size.	Anti-stick surface, cleanable access and wear-aware clearance.
Plastic pellets and masterbatch	Static electricity, pellet breakage and metering stability.	Grounding, suitable rotor speed and gentle discharge structure.
Resin powder or polymer powder	Dust leakage, air leakage and sticking.	Shaft sealing, pressure-balanced design and surface treatment.

Recommended FUWEI Pages

For plastic recycling and resin conveying projects, compare Plastic / PTFE Non-Metal Contact Rotary Valve, positive pressure conveying rotary valves, square flange rotary valves and the rotary airlock valve sizing guide.

FAQ

Can rotary valves handle waste plastic and recycled plastic flakes?
Yes. FUWEI rotary airlock valves can be configured for waste plastic flakes, recycled pellets, regrind and plastic powder by confirming bulk density, particle shape, moisture, static tendency and required capacity.

What should be checked for ocean plastic recycling material?
Ocean plastic and post-consumer recycled material may contain moisture, fines, irregular flakes or contamination. Rotor pocket geometry, clearance, seal type and anti-stick surface treatment should be selected according to the actual material.

Which rotary valve is suitable for plastic pellets and resin powder?
Cast iron, stainless steel, square flange or positive-pressure rotary airlock feeders can be selected depending on capacity, pressure, cleaning requirement, contact material and installation layout.

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