VAG Installation and Operating Instructions • 5
Penstock
dimensions (mm)
400x400
500x500
600x600
700x700
max. leakage
(1%)
liter/
minute
0,048
0,06
0,072
0,096
Penstock
dimensions (mm)
900x900 1000x1000 1200x1200
max. leakage
(1%)
liter/
minute
0,108
0,12
0,144
Table 1: Leakage rates
Note: The table refers to "on seating" pressure. For "off
seating" pressure the values can be multiplied by 3.
tures which form the basis of its reliable and tight sealing function
and ensure low operating torques.
Locking system:
This additional locking system (used from DN 700 on) effectively
supports the tightness of the upper lateral seal.
Profiled seal:
The specially shaped profiled seal inserted in the frame section
ensures the excellent tightness of the Penstock. To replace the
profiled seal, it is not necessary to dismantle the Penstock.
Bottom seal:
The wide, voluminous and flat bottom seal ensures reliable
sealing of the gate when the Penstock is in closed position.
Patented sliding wedge system:
The VAG sliding wedge system combines the advantages of the
sliding system (good guiding properties, vibration-free, valve can
also be used in intermediate position) with those of the wedge
system (relief of the load on the seal, reduced wear, low operating
forces and excellent, reliable tightness).
As the wedges are connected in series, more wedges can be
used and the frame sections remain compact and rigid.
3.2 Fields of application
The VAG EROX
®
plus
Penstock is used in sewage treatment
plants, in raw water and waste water pipelines as well as in indus-
trial applications and flood protection. The special feature of the
VAG EROX
®
plus
Penstock is its very high degree of tightness
which considerably exceeds the leak rates admissible according
to the standard for sluice gates and penstocks (DIN 19569, Part
4).
As a standard, the VAG EROX
®
plus
Penstock is equipped with
EPDM seals. Therefore it can be used for the following fluids:
• Water
• Raw water and cooling water
a: Locking system
b: Patented VAG sliding wedge system
d: Bottom seal
Picture 5: EROX
®
plus
special technical features
c: Profildichtung
a
b
d
c
• Municipal waste water
• Weak acids and alkaline fluids
For fluids containing fats and oils, a variety with NBR seals are
available.
For information about the corresponding temperature limits,
please refer to the product-related technical documentation (KAT-
A 2452).
In case of deviating operating conditions and applications, please
consult the manufacturer.
4 Installing the valve
4.1 On-site requirements
The installation area must be prepared for the installation of the
VAG EROX
®
plus
Penstock. On the installation site it must be en-
sured that the constrution is even and free from pores in the area
of the entire supporting surface. The concrete quality must be at
least that of strength grade C 25 according to DIN 1045/DIN 1084.
Furthermore, the dimensional tolerances according to DIN 18202
must be complied with. In this connection, Table 2, surface even-
ness tolerances line 7 applies.
This means:
• 3 mm maximum deviation per 1 metre of concrete surface
and/or
• 5 mm maximum deviation per 2 metres of concrete surface
• The edges of the structure must not be broken off to ensure
that the sealing ring rests completely on concrete.
If a pipe runs into the construction it is essential to ensure that the
pipe end is flush with the construction. Existing old valve parts
(e.g. old frames) need to be removed completely before the as-
sembly of a new penstock.
4.2 Installing the valve
4.2.1 Fixing the VAG EROX
®
plus
Penstock to
the structure with anchor bolts
First check whether the clear dimension of the opening matches
the nominal diameter of the VAG EROX
®
plus
Penstock. The clear
dimension of the opening must never be larger than the nominal
Limit values of evenness tolerances in mm according to
DIN EN18202
Distance between
measuring points
Line 5
Line 6
Line 7
0,1 m
5
3
2
1 m
10
5
3
4 m
15
10
8
10 m
25
20
15
15 m
30
25
20
Table 2: Table tolerances in Civil Engineering (DIN18202)
