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Function:
The bypass mixing valve is installed in the bypass pipe of
the water softener, with the untreated water flowing in
the direction of the arrow on the valve body.
This untreated water is mixed in the proportion required
with the soft water flowing from the water softener. The
required quantity of untreated water is set on the bypass
mixing valve and the proportion of mixing is maintained
irrespective of consumption.
In case of low consumption, a certain quantity of untreated
water (depending on the setting) is added to the soft
water via the bypass valve (5) only.
In case of increased consumption, the pressure loss of
the water softener causes a differential pressure opening
the valve disc (1). Depending on the setting, a larger or
smaller quantity of untreated water is added to the soft
water.
Setting:
The setting of the required hardness (normally 8.5° dH -
German hardness) requires an adjustment to be carried
out under working conditions as follows:
First of all, the main valve (1) is closed by loosening the
counternut (2) and screwing the stem (3) unto the body
until stop. After having unscrewed the counternut (4), the
bypass valve (5) is adjusted in such a way that the
required water hardness is reached. This is set with 10-
20
of the max. water consumption and locked by tight-
ening the counternut (4).
Finally, at the maximum consumption, the main valve (1)
is opened by turning the stem (3) to the left until the
required water hardness is reached again. Setting is
locked by tightening the counternut (2).
Note:
Oventrop also offers a bypass mixing valve DN 25, item
no. 6101051 or 6101008, for the direct connection to
automatic water softeners. A separate technical data
sheet is available for this model.
Spare parts:
Regulating bonnet for setting
of high flow rates
Regulating bonnet for setting
of low flow rates
Subject to technical modification without notice.
610201080
11/2016
Cut illustration:
Example of installation:
Mixed water
Do not draw any water from the circuit between points
(A) and (B), except for test purposes.
Item no.
6102053
6102051
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3
2
1
Soft water
A
Water softener
4
5
Untreated
water
B
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