Extended Length Rotary Valves
Young Industries manufactures the Model LH, and Model HC Rotary Valves in Extended Lengths. The standard Model LH and Model HC Rotary Valves have Square flanged inlet and discharge connections. The extended length version for these rotary valves have rectangular flanged inlet and discharge connections.
The standard Extended Length rotary valve is a “Double Length” valve. The Double Length Rotary Valve has a rotor that has double the length of the standard square flanged rotary valve. Without increasing the height of a standard valve, the capacity is doubled by increasing the length of the rotor.
Application Information
On those occasions where there is very limited headroom and a high discharge rate is needed, the extended length option can make all the difference. These rotary valves offer the same rugged design features as our standard line of Model LH and Model HC Rotary Valves. The standard rotor has eight vanes to insure there is always two blades positioned between the inlet and discharge. This two-blade seal and precision machined housing with piloted end plates ensures that there is minimum air or gas leakage in those applications where the valve is used to seal between two different pressure or vacuum zones.
Young Industries Extended Length Rotary Valves are engineered to withstand the internal pressure and operating temperature as required by the application. The rotor shaft size is derived based on differential pressure, operating temperature, and rotor length.
Standard Features
- Heavy duty construction with 15 PSIG internal and differential pressure rating.
- Cast or fabricated construction of iron, carbon steel, or 300 series stainless steel.
- Standard design/operating temperature up to 250°F.
- Outboard-mounted precision ball bearings.
- Packing gland provides a tight rotor shaft seal with four rings of PTFE impregnated Kevlar.
- Open or shrouded rotors.
- End plates are piloted to assure concentricity of the housing so that tight internal clearances between rotor and housing is provided.
Options & Accessories
- High internal pressure designs up to 350 PSIG.
- High temperature designs up to 1500°F.
- Sizes from 1″ up to 36″ with double length styles available.
- Roller chain drive with parallel shaft TEFC driven gearmotor is standard with explosion proof motors of any specified manufacturer available.
- Shaft mounted drive is available.
- Special materials of construction including various grades of Stainless Steel, Hastelloy, or Titanium
- Interior polish or electro-polish per application requirement.
- Special packing materials of graphite, food grade PTFE or as needed by process.
- Interior coating for providing abrasion resistance or material release include hard chrome plating, nickel plating, tungsten carbide, Stellite, or Teflon.
- Transflow® fluidized rotors for cohesive powders.
- Lantern ring with purge connection in the packing gland.
- Rotor shaft Mechanical Seals.
- Self-adjusting packing follower.
- Shaft seal coatings.
- Inlet material deflector/baffle for granular products.
- Direct venting, with vent installed in the housing.
- End plate purges.
- Side access/inspection panel for access to the rotor interior.
- Rotor tips and edges can be beveled.
- Replaceable rotor tips of flexible or abrasion resistant materials.
- Exterior painting and coatings to meet customer specifications.
