Product description
6
© Lutz-Jesco GmbH 2018
BA-12604-02-V02
Multi-function valve
PENTABLOC
Operating instructions
3 Intended use
The Multi-function valve PENTABLOC includes various functions and ful-
fils the following tasks:
n
The pressure retaining function to optimise dosing accuracy.
n
The anti-siphon function avoids undesired siphoning.
n
The safety function protects the dosing pump and the connected
system against excess pressure.
n
Option for pressure-relief in the delivery line by returning the medium
to the supply tank.
n
Dosing control from a bouncing ball in a transparent viewing tube.
Intended purpose
The Multi-function valve PENTABLOC ensures the exactness of dosing
pumps with fluctuating back pressure, especially in the area with a pres-
sure of 0 to c. 1 bar. When dosing in unpressurised systems, the inertia of
the accelerated fluid leads to overdosing. As such, the dosing pumps
must be protected against too high a level of pressure, in order to be able
to dose the exact quantity.
4 Product description
4.1 Scope of delivery
Please compare the delivery note with the scope of delivery. The follow-
ing items are part of the scope of delivery:
n
Multifunctional valve PENTABLOC
n
Return hose
4.2 Design
Fig. 1: Design
Item
Description
1
Connection to injection nozzle (output)
2
Handles
3
Output to return
4
Dosing display (only with PVC and PMMA)
5
Connection to the dosing pump (input)
Table 5: Position numbers
a
b
c
e
d
