ENGLISH INSTRUCTIONS
S eries LF223 and
LFN223
High Capacity Water Pressure Regulator
Regulador de la presión de agua de gran
capacidad
Régulateur de pression d’eau à capacité élevée
Size:
1
⁄2" - 3"
Medidas: ½ a 3 pulg.
Tailles : 0.5 à 3 po
IS-223
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.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY
GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive
remedy for breach of warranty, and the Company shall not be responsible for any incidental, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing
other property which is damaged if this product does not work properly, other costs resulting from labor
charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water
conditions, chemical, or any other circumstances over which the Company has no control. This warranty
shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance
or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow
the exclusion or limitation of incidental or consequential damages. Therefore the above limitations may
not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights
that vary from State to State. You should consult applicable state laws to determine your rights. SO
FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT
BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL
SHIPMENT.
Garantía limitada: Watts Regulator Co. (en adelante, “la Compañía”) garantiza, por un período de un año a
partir de la fecha de embarque original, que sus productos están libres de defectos en materiales y mano de obra
bajo condiciones de uso normal. En caso de que se encuentren tales defectos dentro del período de garantía, la
Compañía reemplazará o reacondicionará, a su elección, el producto sin costo alguno.
LA GARANTÍA AQUÍ ESTIPULADA SE OTORGA EN FORMA EXPRESA Y ES LA ÚNICA GARANTÍA
OTORGADA POR LA COMPAÑÍA EN RELACIÓN CON EL PRODUCTO. LA COMPAÑÍA NO OTORGA NINGUNA
OTRA GARANTÍA, YA SEA EXPRESA O IMPLÍCITA. LA COMPAÑÍA POR LA PRESENTE RENUNCIA
ESPECÍFICAMENTE A TODAS LAS DEMÁS GARANTÍAS, EXPRESAS O IMPLÍCITAS, INCLUYENDO SIN
LIMITACIÓN, LAS GARANTÍAS IMPLÍCITAS DE APTITUD PARA LA COMERCIALIZACIÓN E IDONEIDAD PARA
UN PROPÓSITO EN PARTICULAR.
La solución descrita en el primer párrafo de esta garantía constituirá la única y exclusiva solución por
incumplimiento de garantía, y la Compañía no se hará responsable por daños accidentales, especiales o indirec-
tos, incluyendo sin limitación, la pérdida de ganancias o el costo de reparación o reemplazo de otra propiedad que
resulte dañada por el mal funcionamiento de este producto, otros costos resultantes por mano de obra, retardos,
vandalismo, negligencia, obstrucciones ocasionadas por materiales extraños, daños debidos a condiciones
adversas del agua, químicos o cualquier otra circunstancia sobre la cual la Compañía no tenga control. Esta
garantía no tendrá validez en cualquier caso de abuso, uso indebido, aplicación incorrecta, instalación inade-
cuada, o mantenimiento adecuado o alteración del producto.
Algunos Estados no permiten limitaciones en la duración de una garantía implícita y algunos Estados no permiten
la exclusión o limitación de daños accidentales o indirectos. Por lo tanto, es posible que las limitaciones anteriores
no sean aplicables en su caso. Esta garantía limitada le da derechos legales específicos; usted podría tener tam-
bién otros derechos que varían según el Estado. Usted debe consultar las leyes estatales aplicables para deter-
minar sus derechos. EN LA MEDIDA EN QUE SEA CONGRUENTE CON LAS LEYES ESTATALES APLICABLES,
CUALQUIER GARANTÍA IMPLÍCITA QUE NO SEA RECHAZADA, INCLUYENDO LAS GARANTÍAS IMPLÍCITAS DE
APTITUD PARA LA COMERCIALIZACIÓN E IDONEIDAD PARA UN PROPÓSITO EN PARTICULAR, SE LIMITA EN
SU DURACIÓN A UN AÑO A PARTIR DE LA FECHA DEL EMBARQUE ORIGINAL.
Garantie limitée : Watts Regulator Co. (la « Société ») garantit que chacun de ses produits est exempt de
vice de matériau et de fabrication dans des conditions normales d’utilisation pour une période d’un an à
compter de la date d’expédition d’origine. Dans l’éventualité où de tels vices se manifesteraient pendant
la période de garantie, la Société, à sa discrétion, remplacera ou reconditionnera le produit sans frais.
LA PRÉSENTE GARANTIE EST EXPRESSE ET REPRÉSENTE LA SEULE GARANTIE OFFERTE PAR
LA SOCIÉTÉ POUR CE PRODUIT. LA SOCIÉTÉ N’OFFRE AUCUNE AUTRE GARANTIE, EXPRESSE OU
TACITE. PAR LA PRÉSENTE, LA SOCIÉTÉ REJETTE SPÉCIFIQUEMENT TOUTE AUTRE GARANTIE,
EXPRESSE OU TACITE, NOTAMMENT TOUTE GARANTIE TACITE DE QUALITÉ MARCHANDE OU
D’ADAPTATION À UN BUT PARTICULIER.
Le recours décrit dans le premier paragraphe de cette garantie constitue le seul recours à toute violation
de la présente garantie. La Société ne saurait être tenue responsable de tout dommage accessoire, spé-
cial ou indirect, y compris, de façon non limitative : la perte de profits ou le coût afférent à la réparation ou
au remplacement d’autres biens qui seraient endommagés par suite du fonctionnement incorrect dudit
produit ; d’autres coûts résultant de frais de main-d’œuvre, de retards, de vandalisme, de négligence,
d’une obstruction causée par des matériaux étrangers, de dommages causés par une eau impropre,
des produits chimiques ou par tout autre événement échappant au contrôle de la Société. La présente
garantie est déclarée nulle et non avenue en cas d’usage abusif ou incorrect, d’application, d’installation
ou d’entretien incorrects ou de modification du produit.
Certains États n’autorisent pas les limitations de durée d’une garantie tacite ou l’exclusion ou la limita-
tion des dommages accessoires ou indirects. Les limitations susmentionnées peuvent donc ne pas
s’appliquer à vous. Cette garantie limitée vous donne des droits spécifiques et il se peut que vous ayez
aussi d’autres droits qui varient d’un État à l’autre. Veuillez vous référer aux lois applicables de l’État pour
déterminer vos droits en la matière. DANS LA MESURE PERMISE PAR LA LOI APPLICABLE DE L’ÉTAT,
TOUTES LES GARANTIES TACITES NE POUVANT PAS ÊTRE REJETÉES, Y COMPRIS LES GARANTIES
TACITES DE QUALITÉ MARCHANDE ET D’ADAPTATION À UN BUT PARTICULIER, SONT LIMITÉES
QUANT À LEUR DURÉE À UN AN À COMPTER DE LA DATE D’EXPÉDITION D’ORIGINE.
Installation Instructions
• The valve should be installed by a licensed contractor in accordance with
local codes and ordinances.
• This valve should be installed where it is accessible with sufficient clear-
ance for cleaning, service or adjustment.
• Flush dirt and scale from supply pipe.
• Regulator may be installed vertically or horizontally (upright or inverted), but you
must install it with the arrow in the direction of flow.
• Regulator is preset at 50psi (345 kPa). To adjust, loosen locknut and
turn adjusting screw clockwise to increase pressure; counterclockwise to
decrease.
• The LF223 has a built-in thermal expansion bypass. If using the LF223
model when the inlet pressure is higher than the discharge setting of the
water heater T&P valve (typically 150psi, 10.3 bar), or when there is a
check valve or backflow preventer installed on the line, you must make
provisions for pressure relief protection to protect your plumbing system
and its components. We suggest the use of a model DET expansion tank,
the Watts Governor 80 ball cock and thermal expansion relief valve, or
a 530C calibrated pressure relief valve. (Send for folder F-RV, S-Therm
Expansion, or consult your plumbing professional).
NOTICE
•To tighten valve, first hand tighten followed by 1⁄4-1 turn, using wrench.
• LFN45B valves are suitable for accessible outdoor or pit installations.
LFN223
Installation Instructions • Instrucciones de instalación • Instructions d’installation
CAUTION
!
Any time a reducing valve is adjusted, the use of a pressure gauge is rec-
ommended to verify correct pressure setting. Do not bottom out adjusting
screw on spring cage.
CAUTION
!
Use caution when servicing 2" and larger valves that require
removal of the spring cage due to the weight.
Main Line Service
Install in tandem with
smaller size regulator
to improve system
performance and
extend valve life.
Repair Kits
Kit for No. LF223 includes parts shown
To Sill Cock
From Street Main
Meter
Reducing Valve
Install Horizontally
or Vertically
Recommended to use
two PRV’s to reduce
pressure more than
a 10:1 ratio.
➤
➤
➤
➤
➤
Cold Water Supply
Stem Nut & Lock Washer
Bottom plug
Seat Gasket
(except
1
⁄2",
3
⁄4" old style)
Bottom Plug Gasket
Diaphragm
Disc
Seat
(except
1
⁄2",
3
⁄4" old style)
Disc Screw
Lock Nut
Spring Washer
Spring
Spring Cage
Disc Holder
Diaphragm Plate
Adjusting Screw
Ordering
Code No.
Kit No. Valve Series Size
In.
0125123 LFKIT-C-RK
LF223
1
⁄2,
3
⁄4
0125124 LFKIT-D-RK 1
0125125 LFKIT-E-RK 1
1
⁄4
0125369 1
1
⁄2 RK LF223N 1
1
⁄2
0125370 2 RK LF223N 2
0125371 2
1
⁄2 RK LF223N 2
1
⁄2
0009909 2
1
⁄2 LFRK-223 LFN223B 2
1
⁄2, 3 Bronze
0125372 2
1
⁄2 RK LFN223M2 LFN223BM1 2
1
⁄2 Bronze
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
!
Conduct a thorough inspection of the valve for external leaks after the “final’’
installation of the regulator.
NOTICE
When ordering, specify Ordering Code Number, Kit Number and Valve Size.
IS-223 2104 EDP# 1911438 © 2021 Watts
USA: T: (978) 689-6066 • F: (978) 975-8350 • Watts.com
Canada: T: (888) 208-8927 • F: (905) 332-7068 • Watts.ca
Latin America: T: (52) 55-4122-0138 • Watts.com
IS-223 2104 EDP# 1911438 © 2021 Watts
USA: T: (978) 689-6066 • F: (978) 975-8350 • Watts.com
Canada: T: (888) 208-8927 • F: (905) 332-7068 • Watts.ca
Latin America: T: (52) 55-4122-0138 • Watts.com
IS-223 2104 EDP# 1911438 © 2021 Watts
USA: T: (978) 689-6066 • F: (978) 975-8350 • Watts.com
Canada: T: (888) 208-8927 • F: (905) 332-7068 • Watts.ca
Latin America: T: (52) 55-4122-0138 • Watts.com
NOTICE
Watts recommends that the water line be tested annually for incoming
pressure.
Maintenance Instructions
WARNING
!
Depressurize valve before servicing
• To clean or replace parts; shut off supply, loosen lock-nut and back
off adjusting screw.
• Remove spring cage, spring, washer. Remove bottom plug.
• Disassemble module. Use wrench to loosen stem nut and remove
lock washer and diaphragm plate. Remove yoke by loosening disc holder using
a screw driver.
• When replacing disc holder, apply a drop of low strength thread lock. Do not
over torque.
NOTICE
When furnished with a strainer, flush periodically.
WARNING
!
You are required to consult the local building and plumbing codes prior
to installation. If the information in this manual is not consistent with local
building or plumbing codes, the local codes should be followed. Inquire
with governing authorities for additional local requirements.
WARNING
!
Need for Periodic Inspection/Maintenance: This product must be tested
periodically in compliance with local codes, but at least once per year or more as
service conditions warrant. Corrosive water conditions, and/or unauthorized ad-
justments or repair could render the product ineffective for the service intended.
Regular checking and cleaning of the product’s internal components helps assure
maximum life and proper product function.
Maintenance may be required when the water downstream of the product
exhibits one or more of the following: excessive water pressure, insufficient water
pressure or flow, or inconsistent water pressure.