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CAUTION: 

If the 535H series pressure reducing valve  is not installed, 

commissioned and maintained properly, according to the instructions contained 
in this manual, it may not operate correctly and may endanger the user.

CAUTION: 

Make sure that all the connecting pipework is water tight.

 

CAUTION: 

When making the water connections, make sure that the 

connecting pipework is not mechanically over-stressed. Over time this could 
cause breakages, with consequent water losses which, in turn, could cause 
harm to property and/or people.

CAUTION: 

Water temperatures higher than 100°F (38°C) can be dangerous. 

During the installation, commissioning and maintenance of the 535H PRV, 
take the necessary precautions to ensure that such temperatures do not 
endanger people.

Leave this manual for the user

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.

2

 

WARNING: 

This product can expose you to chemicals including lead, which is known to 

the    State of California to cause cancer and birth defects or other reproductive harm. For more 

information go to www.P65Warnings.ca.gov.

Summary of Contents for 5353H Series

Page 1: ...r 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 accordanc...

Page 2: ...maintenance of the 535H PRV take the necessary precautions to ensure that such temperatures do not endanger people Leave this manual for the user SAFETY INSTRUCTION This safety alert symbol will be u...

Page 3: ...en service et l entretien de le r ducteur de pression S rie 535H prendre les precautions n cessaires afin de s assurer que de tells temp ratures ne compromettent pas les gens LAISSEZ CE MANUEL AVEC L...

Page 4: ...ange 15 90 psi 1 6 bar Factory setting 45 psi 3 bar Max working temperature 180 F 80 C Pressure gauge scale 0 100 psi 0 7 bar Filter mesh size 0 51 mm 35 mesh Suitable fluids water Main connections NP...

Page 5: ...1 2 3 4 1 1 1 1 4 1 1 2 2 0 45 5 V m s 0 1 4 3 0 3 1 1 4 535074 5 1 1 1 4 1 2 3 4 1 2 5 0 2 10 20 20 50 00 Flow rate min m 3 h 00 5 10 1 5 V f s 0 3 15 10 1 8 20 90 Flow rate s gpm 30 40 10 5 2 1 0 9...

Page 6: ...noise in the pipes and rapid wear of appliances The correct diameter of the pressure reducing valve is taken from graph 1 on the basis of the design flow rate taking into account an ideal flow velocit...

Page 7: ...to the required value in the system prior to installation The pressure indicator features incremental step movement so that the pressure can be adjusted continuously and the value displayed at 15 psi...

Page 8: ...is highly recommended to refer to the working conditions represented in the above diagram Due to the numerous factors and variable conditions experienced such as system pressure water temperature air...

Page 9: ...llation of valve and permitting quick change out from the jumper to the valve Code Description Face to Face Dimension NA11304 Jumper nipple for 535H series 3 NA11305 Jumper nipple for 535H series 3 9...

Page 10: ...s 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 valv...

Page 11: ...etween the pressure reducing valve and the water heater to absorb the increased pressure caused by water expansion from heating 2 The pressure reducing valve does not maintain downstream setting value...

Page 12: ...Caleffi North America Inc 3883 W Milwaukee Road Milwaukee WI 53208 T 414 238 2360 F 414 238 2366 12 Leave this manual at the service of users for their use 04 20 18...

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