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Model LFCSCheck Stop Valves
Sizes: 12"Model LFCS check stop valves are designed for use at the hot andcold water inlet supplies for mixing and tempering valves. ModelLFCS valves perform triple duty as: 1) isolation valves,2) check valves, and 3) strainers. The union connectionsfacilitate service and maintenance of both the valve and the
strainer.Model LFCS valve protects against cross flow of hot and coldwater in the system and provide isolation of the mixing ortempering valve during servicing and maintenance of the valveand strainer. The integral fine strainer protects the valve fromdamaging dirt and other debris.The Model LFCS valve featuresLead Free* construction to comply with Lead Free* installationrequirements.
Features Performs triple duty as: 1) check valve, 2) shutoff
valve, and 3) strainer
Check valve function protects against hot and cold water supply cross flow
Shut-off function facilitates mixing valve service and
strainer maintenance Strainer protects mixing valves from dirt and other
debris
Universal design eliminates left-hand/right-handconfusion
Materials
Body: Lead Free* Copper Silicon Alloy
O-rings: EPDM
Strainer: Stainless steel
Spring: Stainless steel
Disc: EPDM
Stem: Lead Free* Brass
SpecificationsLFCS combination check/stop/strainer valve shall be used at thehot and cold water inlets to the Watts LFL111 and LFMMV mixingvalves. The combination check stop valve(s) shall be a Watts modelLFCS, as indicated on the installation plans. The combination checkstop valve shall be of lead free construction. Lead Free* check stopshall comply with state codes and standards, where applicable,
requiring reduced lead content. The check stop valve shall be fit tedwith a strainer to prevent large particulate matter from entering thevalve. The check stop valve shall be fitted with a union connectionto facilitate the removal of the mixing valve and the servicing of thestrainer. The check stop valve inlet connection shall be threaded(-T). The outlet connection shall be threaded (-UT). The check/stop/strainer valve(s) used shall be the Watts LFCS Check Stop valve.
Pressure TemperatureMaximum Working Pressure:150psi (10.3 bar) at 225F (107C)
LFCS-T-UT
For Mixing Tempering Valve Applications
ES-LFCS
Job Name Contractor
Job Location Approval
Engineer Contractors P.O. No.
Approval Representative
LEAD FREE*
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
*The wetted surface of this product contacted by consumablewater contains less than 0.25% of lead by weight.
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Installation
Dimensions Weight
A
D
E
B
LFCS-T-UT
ES-LFCS 1335 2013 Watts
USA:Tel: (978) 688-1811 Fax: (978) 794-1848 www.watts.com
Canada:Tel: (905) 332-4090 Fax: (905) 332-7068 www.watts.ca
A Watts Water Technologies Company
SIZE (DN)
MODEL INLET OUTLET DIMENSIONS WEIGHTS UNION
A B D E Inlet Outlet
in. in. mm in. mm in. mm in. mm in. mm oz. gr.
CS-T-UT 12 12 15 278 73 1516 59 1316 30 214 57 12 340 FNPT MNPT
AlternatePiping
CheckValve
IsolationBall Valve
Strainer
To FixtureTo Fixture
Model LFCS(2 required)
Model LFCS(2 required)
LFMMVLFL111
IsolationBall Valve(optional)
Watts LF1170For LFN170
mixing valve(optional)
Hot Supply
Cold WaterSupply
Hot WaterSupply
IsolationBall Valve(optional)
Hot ColdHot Cold
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