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Tangential rotary valve TZS

For the gentle way!

Tangential rotary valve TZS

Tangential rotary valves are used for conveying and metering coarse-grained bulk materials and granulates. Due to the staggered inlet, which is tangential to the rotary valve, the conveying medium is forced back by a scraper. This prevents the conveying medium from jamming between the cellular wheel and the housing, thus ensuring gentle conveying of the bulk material.

Application area

  • Nominal conveying capacity 0.45 – 320 m³/h at 100% filling level
  • Speed 30 rpm.
  • Differential pressure up to 0.15 MPa
  • Temperature range from -20°C to +80°C
  • Rotor diameter from 100 mm to 630 mm

Material variants

  • 0.6020 (GG)
  • 1.0570 (Steel)
  • 1.4301 (V2A)
  • 1.4571 (V4A)

Type/Features

  • Drive via directly flanged geared motor or with free shaft end
  • With motor lantern, coupling, torque arm or base plate
  • Sealing via radial shaft seals or packing glands
  • Welded construction
  • With angular inlet and outlet
  • Cellular wheels with up to 14 chambers
  • Surface primed, painted, blasted or chemically nickel-plated
  • Structurally safe
  • Pressure shock resistant and ignition proof up to 10 bar according to RL2014/34/EU
  • With integrated pre-wiper

Variants

  • With wearing strips made of spring steel
  • With wear protection inlet
  • With speed controller
  • With chain drive

Frequently Asked Questions

What is a tangential rotary valve?
A tangential rotary valve, also known as a offset rotary valve, is used for the gentle conveyance of bulk materials. The inlet and outlet of the rotary valve are tangentially offset. Tangential rotary valves are typically equipped with a pre-scraper to prevent overfilling of the chambers.

How does the pre-scraper of a tangential airlock work?
The pre-scraper at the inlet of the tangential airlock prevents the chambers from overfilling. The rotor rotates in the direction of the pre-scraper. This prevents the chambers from overfilling and pushes excess material into the next chamber.

Can the pre-scraper be adjusted?
The pre-scraper on Neue JÄGER tangential rotary valves can be adjusted. This allows the flow rate at the inlet of the rotary valve to be regulated. Additionally, the pre-scraper can be equipped with adjustable and replaceable sealing strips. A special cleaning flap in the inlet allows for easy replacement of the adjustment strips without dismantling the entire tangential valve from the piping system.

For which bulk material are tangential rotary valves used?
Tangential rotary valves are generally used for coarse-grained bulk materials and granules. Bulk materials containing particles up to 70 mm in size can also be gently conveyed with tangential valves. The pre-scraper of the tangential valve pushes the bulk material back into the next chamber when the chambers are overfilled. This largely prevents damage to the media between the rotary valve and the housing.

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