müller coax group

Special Valves

PLB 05

Data Sheets
General Operating Manual
ports threads G 1/4, G 3/8
function NC
pressure range 0-25 bar
KV value 18 l/min
media liquid  pasty
flow direction A B as marked
switching cycles 60 1/min
switching time 50 ms opening
50 ms closing
media temperature +60 °C
weight 0,36 kg

The valves' technical design is based on media and application requirements. This can lead to deviations from the general specifications shown on the data sheet with regards to the design, sealing materials and characteristics.

Product description

This type is a pneumatically actuated valve with 2 port connections and 2 switching positions with a nominal width of 5 mm. The control is carried out using a 3/2 or 5/2-way pilot valve, provided by the customer. The PLB 05 has been specially designed for glue. This series is used highly successfully for glue application (laminated wood gluing and composite lumber) as well as in bonding applications, up 25 bar.

The special feature of the PLB is that it is hermetically sealed to the outside by a metal bellows and it is also equipped with a wear resistance valve seat; this is because the media hardens when making contact with air, which would destroy a conventional valve. The PLB can be mounted as single valve as well as in a manifold block in order to achieve the necessary glue bead spacings during glue application.


  • specially developed for glue and adhesive
  • hermetically sealed against the atmosphere by means of a metal bellows - no leakage bore
  • no carrying-over of the medium thanks to dynamic seals
  • wear-resistant valve seat
  • in the event of actuation air failure, the valve fails close, tight at the seat
  • valve body available in stainless steel or aluminium
  • max. pressure 25 bar
  • Manifold block design possible
  • low weight of 360 grammes
  • connection B also available with nozzle


Special Valves