Overview of two-way-valves

Summary of applications

 

All two-way-valves,

two-way-valves with inlet collar, two-way-valves with seal, two-way distributors 60° and two-way distributors 45°, are available in symmetric as well as in asymmetric form.

Symmetrical versions are optimized for an installation in vertical bulk goods lines, asymmetric ones for lines that have an inclination that corresponds to the angle between the outlets. The pictures below only show the symmetric form.


 

Two-way-valves with inlet collar


The sealing of the selected path is reached by a cover of the inlet lip to the inside valve
and a cover of the U-shaped inside valve to the next following pipe.

For abrasive products the inlet, inner collar and the inside valve can be delivered with a
lining of rubber or polyurethane.

3 mm thick versions are certified as shock-explosion proof up to a Ø 300 mm to the
outside up to 3 bar overpressure.

Dimensions same as two-way-valves with seal (see below).

Application:

  • For gravity conveying of free-flowing – without backlog –, non-glutinous, granular bulk goods. With powdery products, – especially with a over-pressure in the free or underpressure in the closed outlet – there could be leakages in the closed outlet.
  • An application in ventilation plants is not recommended due to the absence of a flap seal.

 


 

Two-way-valves with seal


2-layer, straight flap with intermediate seal of NBR, light food quality, temperature resistant from -50 up to -80 °C.

Dimensions same as two-way-valves with inlet collar (see above).

Application:
For gravity conveying of free-flowing bulk goods and ventilation plants with differential pressure up to 0.1 bar.

Attention:

  • The actuators are not constructed for forces caused by above mentioned differential pressures. More powerful actuators on request.
  • Below the shaft there is no seal, so that for higher requirements with regard to tightness towards the closed outlet the two-way distributor should be used.

 


 

 

Two-way-distributors 60°, alternative 45°


2-layer, straight flap with intermediate seal of Silicone, light quality, for dry materials temperature resistant up to 180 °C.


To press on the seal, the housing reduces in the area of the valve end position. Below the shaft there is a seal of Silicone that can be re-adjusted from outside. Shafts with ball-bearing and flat ring-seal of Silicone.


The complete inside valve including all seals can be exchanged without removing the distributor from the pipe system.

 

 

 

Application:
For gravity conveying of free-flowing bulk goods and ventilation plants with differential pressure up to 0.3 bar.


Attention:

  • The actuators are not constructed for forces caused by above mentioned differential pressures. More powerful actuators on request.
  • The 45° version is better suitable for a deflection of more sensitive products and products with bad flow properties.
  • Two-way-distributors 30°, Ø 150 to 300 mm, on request.

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