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Installation Instructions • Instrucciones de instalación • Instructions d'installation
S eries N55B and
LFN55B
Water Pressure Reducing Valve
Válvula reductora de la presión del agua
Régulateur de pression d'eau
Size: 1
⁄
", 1
1
4
Medidas: 1
Tailles : 1.25, 1.5, 2 po
⁄
", 2"
1
2
⁄
, 1
⁄
, 2 pulg.
1
1
4
2
IS-N55B-1
/
"-2"
1
4
N55BDU
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Table of Contents
Related Manuals for Watts N55B Series
Summary of Contents for Watts N55B Series
- Page 1 IS-N55B-1 "-2" Installation Instructions • Instrucciones de instalación • Instructions d’installation S eries N55B and LFN55B Water Pressure Reducing Valve Válvula reductora de la presión del agua Régulateur de pression d'eau Size: 1 ⁄ ", 1 ⁄ ", 2" Medidas: 1 ⁄...
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Page 2: Installation Instructions
WARNING Read this Manual BEFORE using this equipment. Failure to read and follow all safety and use information can result in death, serious personal injury, property damage, or damage to the equipment. Keep this Manual for future reference. WARNING You are required to consult the local building and plumbing codes prior to installation. -
Page 3: Maintenance Instructions
Maintenance Instructions WARNING Depressurize valve before servicing. • To clean strainer or replace seat/stem module shut off water supply, loosen Locknut and Lock Seal and back off Adjusting Screw. • Remove Spring Cage, Spring, Washer and Slip Ring. Grasp Stem Nut with fingers or pliers and lift module from body. -
Page 4: Bypass Feature
Bypass Feature This regulator has a built-in thermal expansion bypass feature. This feature prevents downstream pressure from rising to more than 10psi above the supply pressure. NOTICE The Bypass feature will not prevent the pressure relief valve from opening on the hot water supply system with pressures above 150psi (10.3 bar). -
Page 5: Typical Installation
Typical Installation WATTS PRESSURE GAUGE (2 PLACES) WATER METER TO FIXTURES WATTS WATTS WATTS SUPPLY SHUTOFF VALVE BACKFLOW PRESSURE (2 PLACES) PREVENTER REGULATOR Series Installation Series installations are recommended where very high supply pressure must be reduced to a very low downstream pressure. - Page 6 Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original ship- ment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
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