7/27/2019 ES-LFCS

1/2

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.

7/27/2019 ES-LFCS

2/2

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