D15SDiaphragm-actuatedpressure reducing valve
2
EN0H-1049GE23R0712 •Subject t o change
H
L
h
F
DN
Methodof Operation
Spring loadedpressure reducing valves operate bymeans of a
force equalising system. The force of a diaphragmoperates
against the force of an adjustment spring. If the outlet pressure
and therefore diaphragm force fall becausewater is drawn, the
then greater force of the spring causes the valve to open. The
outlet pressure then increases until the forces between the
diaphragm and the spring are equal again.
The inlet pressurehasno influence ineither openingor closingof
the valve. Because of this, inlet pressure fluctuation does not
influence theoutlet pressure, thusproviding inlet pressurebalan-
cing.
Options
D15S-... A=With flangesPN16, ISO 7005-2, EN 1092-2
Housingmadeofductilecast iron (EN-GJS-400-15
EN1563), coatedwithPA (Rilsan)
Special Versions available on request
Connection size
Connection size
DN 65
80
100
inch 21/2"
3"
4"
Weight
approx. kg 30.5
32
34.5
Dimensions
mm
L 290
310
350
H 370
370
370
h 93
100
110
F 185
200
220
k
vs
-value
47
70
110
16
15
bar
0
5
RV283P
FY69P
F76S-F
Accessories
RV283P Check valve
Grey cast iron housing, powder coated inside and
outside. DIN/DVGW tested in compulsory test sizes
DN 65, DN80 andDN 100
FY69P Strainer
With doublemesh, grey cast iron housing, powder
coated inside and outside.
A=Mesh size approximately 0.5mm
F76S-F Reverse-rinsing filter
Redbronze housing and filter bowl. Available in sizes
DN 65 toDN 100, with filtermesh sizes 100 μm
or 200 μm
