Sunco Inc.
P.O. Box 77926 | Charlotte, NC 28271
Phone:  (704) 545-3922| Fax:   (704) 285-0488


Sunco Powder Systems


(704) 545-3922

© 2024 Sunco Powder Systems, Inc.


The Sunco Offset Rotary Valve is designed to handle certain types of materials that would otherwise suffer damage when handled with a typical rotary valve.  Materials such as plastic pellets, nylon, polyethylene and others can break apart and the resulting “stringers” can cause a standard rotary valve to jam.  This can cause material loss as well as significant downtime and increased maintenance requirements.

To address these problems, Sunco offers our Offset Rotary Valve.  The unique design of the Offset Rotary Valve allows the material to be fed into the rotor during its upward cycle.  In addition, a special beak above the rotor distributes the material across the entire width of the rotor.  The result is a consistent feed without harm to your material or equipment. 

Design Highlights:

  • Maximum Number of Blades in Contact with Body at One Time
  • Good Throat Opening at Valve Inlet, Providing High Pocket Fillage
  • Robust Body Stiffened to Prevent Distortion
  • Heavy Shaft Diameters to Minimize Distortion
  • Outboard Bearings to Prevent Contamination
  • Precision Machining of Components

Standard Features & Specifications
Construction:       Cast Iron, Cast Aluminum, Cast 316SS
Rotor:                      Carbon Steel, Stainless Steel, Open-End Type with Fixed Blades
Bearings:                Sealed for Life, Mounted Outboard to Ensure Longer Life
Shaft Seal:              Cast Iron Type Gland Follower Pressurizing PTFE Type
Drive:                       TEFC Geared Motor, Side Wall Mounted to the Valve Body, with 

                                  Taperlock Sprockets and Chain Drive Enclosed in an OSHA Guard

Quick Release Rotors, Air Purge of Shaft Seals (used to prevent dust-laden air from penetrating the packing  gland and thereby breaking down both the packing and rotor shaft), Body Vent, Explosion Proof, Mill & Chemical Duty Motors, Variable Speed Drives, Zero Speed Switches, High/Low Temperature Bearings.

Offset Rotary Valve
Offset Rotary Valve