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 introduces its 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. 
 

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

• Bodies:  Cast Iron, Cast Aluminum, Cast Stainless Steel
• End Covers:  Cast Iron, Cast Aluminum or Cast Stainless Steel
• Rotor:  Fabricated Mild Steel or Stainless Steel, Open-End Type with Fixed Blades
• Bearings:  Sealed for Life, Mounted Outboard to Ensure Long Life 
• Shaft Seal:  Cast Iron Type Gland Follower Pressurizing PTFE Type
• Drive:  TEFC Geared Motor, Side Wall Mounted to the Valve Body, Complete with Taperlock Sprockets and Chain Drive Enclosed in a Mild Steel OSHA Guard

• 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
• Quick Release Rotors
• Various Internal Coatings and Platings
• Explosion Proof, Mill/Chem Duty Motors
• Variable Speed Drives
• Zero Speed Switches
• High/Low Temperature Bearings