Lead Free* Double Check Valve Assemblies - Small Diameter - LF850 Small, LF850U Small

Series LF850 Small double check valve assembly backflow preventers includes a freeze sensor for use with SentryPlus Alert® technology to signal when temperature nears the freezing point. Activated by an add-on connection kit, the sensor triggers alerts to help facility personnel reduce equipment damage and repair that may result from cold weather conditions. Available for building and irrigation management systems.

This series is designed to prevent the backflow of polluted water from entering the potable water supply due to backsiphonage and or backpressure. Features lead free body construction, NPT end connections, top mounted test cocks, and quarter turn ball valve shutoffs.

Specification

Features
- Sensor signals to indicate when temperature nears the freezing point once activated by an add-on BMS/IMS connection kit
- Compact modular design to facilitate maintenance and in-line repairs with a single access cover
- In-line serviceable assembly requiring no special tools
- Two in-line independent positive seating check modules
- Replaceable seats and seat discs
Outlet Connection Size
- 1/2 IN
- 3/4 IN
- 1 IN
- 1 1/4 IN
- 1 1/2 IN
- 2 IN
Inlet Connection Type
- Female Threaded
- Union Joint
Inlet Connection Size
- 1/2 IN
- 3/4 IN
- 1 IN
- 1 1/4 IN
- 1 1/2 IN
- 2 IN

Technical specification

Unique ref.lf850-lf850U-small
Product familyBackflow Prevention
Product groupDouble Check Valve Assemblies
TypeObject (single object)
Date of publishing2019-12-03
Edition number1

Links

Product urlhttps://www.watts.com/products/plumbing-flow-control-solutions/backflow-preventers/double-check-valve-assemblies/lf850-small
Installation instructionshttps://www.watts.com/dfsmedia/0533dbba17714b1ab581ab07a4cbb521/34414-source/980057
Technical descriptionhttps://www.watts.com/dfsmedia/0533dbba17714b1ab581ab07a4cbb521/34442-source/es-f-lf850s

Material mainCast iron
Designed inUnited States
Manufactured inUnited States

Classification

BIMobject CategoryPlumbing - Valves
IFC classificationValve
UNSPSC nameValves
UNSPSC code401416
Uniclass 2015 CodePr_65_54_95_05
Uniclass 2015 DescriptionBackflow prevention devices
CSI MasterFormat 2014 Code40 05 67.13
CSI MasterFormat 2014 TitleReduced-Pressure Zone Backflow Preventers for Process Service
OmniClass Number23-27 31 11
OmniClass TitleBackflow Preventors
CSI UniFormat II CodeD20
CSI UniFormat II TitlePLUMBING