Wellworth Ecatalog - page 125

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EN0H-1049GE23R0712 •Subject t o change
D15S
Diaphragm-actuatedpressure reducing valve
with cartridge insert
Product specification sheet
Construction
Thepressure reducing valve comprises:
• Housingwith PN16 flanges per ISO7005-2, EN1092-2
• Springbonnet with adjustment screw
• Adjustment spring
• Cartridge insert
• Pressure gauge
Materials
• Housingmadeofductilecast iron (EN-GJS-400-15EN1563),
coatedwithPA (Rilsan)
• Springbonnetmade of ductile cast iron (EN-GJS-400-15
EN1563), coatedwithPA (Rilsan)
• Cartridge insertmade completely of low-lead (<2.2% acc. to
DIN50930part 6) brasswith stainless steel valve spindle
• Spring steel adjustment spring
• Diaphragm and sealsmade of EPDM
• Groove ring and sealingdiscmade of high-quality PU
• Stainless steel screws and nuts
Application
Pressure reducingvalvesof this typeprotect installationsagainst
excessive pressure from the supply. They can be used for
household, industrial or commercial applicationswithin the range
of their specification.
By installingapressure reducing valve, pressurisationdamage is
avoided andwater consumption is reduced.
Theset pressure isalsomaintainedconstant, evenwhen there is
wide inlet pressure fluctuation.
Reduction of the operatingpressure andmaintaining it at a
constant level minimizes flow noise in the installation.
Special Features
• Patented cartridge solution for easy assembly andmainte-
nance
• One cartridge insert fits all nominal widths, makingwarehou-
sing efficient
• Meets all requirements of DINEN 1567
• None of thematerials used exceed the permissible limits for
lead content specifiedbyDIN50930Part 6
• Functionality andperformance have been confirmedby an
accelerated life test with over 400,000 cycles (requirement
acc. toDINEN 1567: 200,000 cycles)
Rangeof Application
Technical Data
Medium
Drinkingwater
Inlet pressure
max. 16bar
Outlet pressure
1.5 - 6.5bar
Operating temperature max. 65°C
Nominal pressure
PN16
Minimumpressuredrop 1.0bar
Nominal size
DN65, DN80, DN100
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