Pneumatic Conveying Rotary Valves & Airlocks TYPE-2 AIRLOCK: ABRASIVE RESISTANT ROTARY VALVE


The Abrasive Resistant Rotary Valve Type-2 Airlock is our most popular abrasion resistant rotary valve. While it is not our most abrasion resistant valve, neither are most of the products that are considered too abrasive for a standard valve. There are simply a lot of materials that are in the mildly abrasive category that are too much for a standard valve and overkill for a high dollar super abrasion resistant valve. What makes the Type-2 rotary valve work as well as an abrasion resistant valve is the closed end rotor design that has bolt-on hardened steel replaceable tips and the housing bore is coated with industrial-hard chrome. The Type-2 rotary valve really shines when coupled with our patented cavity air purge system on airlock applications.

All of our rotary valves are NFPA Section compliant.


  • Our most popular abrasion resistant rotary valve
  • Construction: Cast iron housing with a hard chrome coating and cast iron endplates
  • Mild steel closed end rotor with bolt on tips - 400 Brinell (43Rc) Hardness
  • Available in sizes ranging from 9” airlock (0.21CFR) to 30” airlock (9.2 CFR)
  • Shaft air purge system
  • Can be used as either a feeder or an airlock on any mildly abrasive material
  • Standard color: Blue or white
  • Available for high temperature applications up to 500°F
  • 100% manufactured and assembled in the USA.

Optional Features:

  • Available with round inlet and outlet in sizes: 9” and 12”
  • Cavity air purge

Some of the applications that fit the Type-2 rotary valve:

  • Kiln dust, fly ash, portland cement, pebble lime
  • Any pneumatic conveying systems handling abrasive products
  • Asphalt bag house dust