Function
Pressure reducing valves are devices which, when
installed on water systems, reduce and stabilize the
pressure of the water entering from the water supply
main. This pressure, in general, is too high and
variable for domestic systems to operate correctly.
The PresCal™ 535H series pressure reducing valves,
ideal for residential and commercial applications, feature
a dial indicator with direct readout allowing easy pressure
pre-adjustment. After installation, the valve will control at
the pre-adjusted pressure setting.
The valve is constructed of DZR low-lead forged brass
and incorporates a unique noise reducing and high
flow seat design, is easily serviced with a replaceable
cartridge and has an integral stainless steel filter
(35 mesh), suitable for water systems that may
contain sediment and debris.
The valve is ICC-ES certified to ASSE 1003, CSA B356,
NSF/ANSI 61 (180°F/82°C Commercial Hot), NSF/
ANSI 372, low lead laws and listed by ICC-ES. It meets
codes IPC, IRC and UPC for use in accordance with the
US and Canadian plumbing codes.
Product range
5353H Series
Pre-adjustable pressure reducing valve with or without pressure gauge and NPT female
threaded union connections, sizes ½", ¾”, 1", 1¼", 1½" and 2".
5355H Series
Pre-adjustable pressure reducing valve with or without pressure gauge and PEX expansion
union connections, size ¾".
5356H Series
Pre-adjustable pressure reducing valve with or without pressure gauge and union press
connections, sizes ¾” and 1".
5357H Series
Pre-adjustable pressure reducing valve with or without pressure gauge and union PEX
crimp connections, sizes ¾” and 1".
5359H Series
Pre-adjustable pressure reducing valve with or without pressure gauge and union sweat
connections, sizes ½", ¾”, 1", 1¼", 1½" and 2".
PresCal™ Pre-adjustable pressure reducing valves
Installation, commissioning and servicing instructions
NA10397.03
www.caleffi.com
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© Copyright 2019 Caleffi
535H Series
ASSE 1003
NSF 61
