User Guide

ManualsBrandsCaleffi ManualsHeating Supplies2" Sweat Pressure Reducing Valve w/o Gauge (Low Lead, Pre-adjustable)

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 535HA 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 system pressure will

automatically adjust itself to the set value.

The valve is constructed of DZR low-lead brass and

incorporates a unique noise reducing and high flow seat

design, easy inline servicing with a replaceable cartridge

and 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 61, NSF 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

5353HA Series

Pre-adjustable pressure reducing valve with or without pressure gauge and NPT female

threaded union connections, sizes 1/2",

3/4”, 1", & 1 1/4".

5356HA Series

Pre-adjustable pressure reducing valve with or without pressure gauge and union press

connections, sizes

3/4”.

5359HA Series

Pre-adjustable pressure reducing valve with or without pressure gauge and union sweat

connections, sizes 1/2",

3/4”, 1", & 1 1/4".

535HA series pressure reducing valve

Installation, commissioning and servicing instructions

NA10397

www.caleffi.com

535HA Series

ASSE 1003

NSF 61

Summary of content (8 pages)

PAGE 1
NA10397 www.caleffi.com 535HA series pressure reducing valve 535HA Series © Copyright 2016 Caleffi Installation, commissioning and servicing instructions 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.
PAGE 2
SAFETY INSTRUCTION This safety alert symbol will be used in this manual to draw attention to safety related instructions. When used, the safety alert symbol means. ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD. CAUTION: All work must be performed by qualified personnel trained in the proper application, installation, and maintenance of systems in accordance with all applicable codes and ordinances.
PAGE 3
CONSIGNE DE SÉCURITÉ Ce symbole d'avertissement servira dans ce manuel à attirer l'attention sur la sécurité concernant instructions. Lorsqu'il est utilisé, ce symbole signifie. ATTENTION! DEVENEZ ALERTE ! VOTRE SÉCURITÉ EST EN JEU ! NE PAS SUIVRE CES INSTRUCTIONS PEUT PROVOQUER UN RISQUE DE SECURITE. ATTENTION: Tous les travaux doivent être effectués par du personnel qualifié formé à la bonne application, installation et maintenance des systèmes conformément aux codes et règlements locaux.
PAGE 4
APPROVALS 1. ICC-ES certified to ASSE 1003, CSA B356, NSF 61 and NSF 372. 2. NSF/ANSI 372-2011, Drinking Water System Components-Lead Content Reduction of Lead in Drinking Water Act, California Health and Safety Code 116875 S.3874, Reduction in Drinking Water Act, certified by ICC-ES, file PMG-1360. Hydraulic characteristics Graph 1 (Circulation speed) V (f/s) V (m/s) 5 15 4 10 8 3 6 1.8 5 4 1.2 3 0.9 2 0.6 1.5 0.45 1/2” 1 3/4” 1” 1 1/4” 0.
PAGE 5
1 in 1 1/4 in 1/2 in 3/4 in Graph 2 (Pressure drop) ∆p (kPa) ∆p (psi) 150 20 117 103 90 10 68 62 7 48 5 35 28 50 60 4 70 5 80 90 6 Flow rate (/s) (gpm) 3 2.5 2 1.5 1 0.5 0.4 5 0.3 0.2 2 0.1 0.05 Reference values: 40 10 30 1.5 20 14 10 2 4 20 3 3 0.
PAGE 6
Installation 1) Turn all the faucets on before installing the pressure reducing valve, to flush the system and expel any air remaining in the pipes. 2) Install shut-off valves upstream and downstream to facilitate maintenance operations. 3) The pressure reducing valve may be installed on either vertical or horizontal pipe. However, it must not be installed upside down. 4) Close the downstream shut-off valve.
PAGE 7
Maintenance The cartridge, containing the diaphragm, strainer, seat, valve plug and compensating piston, is pre-assembled as a self-contained unit with a cover and can be removed for inspection and maintenance. When checking, cleaning or replacing the cartridge: 1) Shut off the inlet and outlet isolation valves. 2) The downstream pressure setting can be left at the set value. 3) Remove the upper cover, using a spanner. This cover is integral with the cartridge. 4) Check and clean the filter.
PAGE 8
Troubleshooting System failures are not always caused by the pressure reducing valve. Most frequently: 1. Increased downstream pressure in the presence of a water heater If the downstream pressure increases beyond the desired setting due to an inline water heater, install an expansion tank between the pressure reducing valve and the water heater to absorb the increased pressure, caused by water expansion from heating. 2.