About Us

Contact Us

Micro Model HC – High Capacity

Home Products Rotary Valves Micro Model HC – High Capacity


The Young Industries Inc. offers the Micro-Model HC Drop-Thru Rotary Valves designed for low capacity or laboratory applications. These Rotary Valves are manufactured with the same superior performance and reliability as our larger size valves. The valves include outboard mounted bearings and utilize a packing gland in the shaft seal area. The Micro-Model HC Rotary Valves are available in Sizes 1” thru 3” with round or square inlet and discharge flanges.  


The Micro-Model HC Rotary Valves have vertical inlet and discharge throats. The standard rotor used for these valves have eight vanes to insure there is always two blades positioned between the inlet and discharge. This two-blade seal with precision machined housing ensures there is minimum air or gas leakage in those applications where the valve is used to seal between two different pressure or vacuum zones. This series of Micro-Rotary Valves offer the standard features of the larger Model HC Rotary Valves and have many of the same optional features available.

  • 15 PSIG Housing and differential pressure or vacuum
  • Minimum four blade sealing with two (2) blade sealing on each side.
  • Fabricated or cast designs
  • Materials of construction: Cast or fabricated carbon steel, cast or fabricated stainless steel and cast or fabricated Aluminum
  • Raw materials are traceable to standard specifications with ASTM the most used specification
  • Round or square inlet flange
  • Round or square discharge flange
  • Up to 250°F operation temperature, with designs offered to withstand up to 1600°F temperature
  • Outboard-mounted precision ball bearings
  • Packing gland rotor shaft seal consisting square braided Kevlar impregnated with PTFE packing, 4 rings per side and held in place by an aluminum packing follower.
  • Eight (8) bladed rotor with twelve (12) bladed rotor for rotary valves over 12″ size to provide low operating air or gas leakage.
  • Rotor assembled near-perfect concentrically to the housing
  • Heavy rotor shafts secured to eliminate shifting in the housing
  • Two (2) basic styles of rotors available with each style having four (4) different types of rotors. The types are “A”- Standard, “B & C”- partially filled and “D” – adjustable tips
  • Grounding and bonding connection to NFPA specifications
  • Right-angle Gearmotor, side mounted 3 phase, 60 Hertz, 230-460 volts, TEFC and roller chain drive and safety to OSHA requirements.
  • Painted blue enamel or Steelcote stainless steel paint
  • Completely assembled and tested
  • High pressure design to 350 PSIG
  • High temperature design to 1600°F
  • Special 1″ to 3″ and 28″ to 36″ Sizes and double length styles
  • Drive and accessories are usually supplied consisting of a right angle gear motor, sprockets, drive chain and safety guard. TEFC or Explosion proof motors, direct connected and other special drive available
  • Special materials of construction including: 316 Stainless steel, Hastelloy, Titanium, engineered plastics
  • Interior coating to provide abrasive resistance to material release including: chrome plating, nickel plating, tungsten carbide, Stellite, Teflon
  • Interior polishes and cleanup
  • Special packing materials as graphite, food grade TPFE,
  • Air purge packing glands
  • Lip seal packing
  • Self adjusting packing follower
  • Mechanical rotor shaft seals
  • Shaft seal area polishes
  • Inlet material deflector
  • Venting Thimble
  • Housing vent
  • End plate purges
  • Rotor tips and edges beveled
  • Rigid or flexible tips of brass or polyurethane
  • Painted or coated per customers specification

Standard Drawings

Send us a message to get a call back.