Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size - Point-of-Source Mixing Valves
WattsPoint-of-Source Mixing Valves

Watts Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size

The WATTS Thermostatic Mixing Valve (MPN LF1170-M2-US) is a point-of-source mixing valve with 1-inch inlet and outlet connection sizes and solder connections. It includes a locking mechanism for secure temperature…

SKU 3G-OTH-438489

Brand
Watts
Item
Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size
Category
Point-of-Source Mixing Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
LF1170-M2-US
Type
Solder
Includes
Locking Mechanism
Outlet Connection Size
1 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Thermostatic Mixing Valve (MPN LF1170-M2-US) is a point-of-source mixing valve with 1-inch inlet and outlet connection sizes and solder connections. It includes a locking mechanism for secure temperature setting.

Frequently Asked Questions

What is a WATTS thermostatic mixing valve used for?

A WATTS thermostatic mixing valve blends hot and cold water to deliver a safe, consistent outlet temperature. It is commonly used in commercial and residential plumbing systems to prevent scalding and provide tempered water at point-of-source fixtures.

What are the specifications of the WATTS LF1170-M2-US mixing valve?

The WATTS LF1170-M2-US thermostatic mixing valve has 1-inch inlet and outlet connections with solder ends. It includes a locking mechanism to secure the temperature setting. This point-of-source valve is designed for reliable temperature control in plumbing systems.

Where to buy a WATTS thermostatic mixing valve worldwide?

3G Electric supplies the WATTS LF1170-M2-US thermostatic mixing valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this point-of-source mixing valve.

How to install a WATTS thermostatic mixing valve?

Install the WATTS thermostatic mixing valve by soldering the 1-inch connections to copper pipe. Ensure flow direction matches the valve body arrows. Secure the locking mechanism after setting the desired outlet temperature. Always follow local plumbing codes and the manufacturer's instructions.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts point-of-source mixing valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size, NPT, Brass (MPN LF1170-M2-UT). Key specifications — Includes: Check Valves; Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size, NPT, Brass (MPN LF1170-M2-UT). Key specifications — Includes: Check Valves; Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size, Brass (MPN LF1170-M2-QC). Key specifications — Includes: Solid Wax Hydraulic Principle Thermostat; Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size, Brass (MPN LF1170-M2-QC). Key specifications — Includes: Solid Wax Hydraulic Principle Thermostat; Brand: WATTS.
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size, Brass (MPN LF1170-M2-QC). Key specifications — Includes: Integral Filter Washers; Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size, Brass (MPN LF1170-M2-QC). Key specifications — Includes: Integral Filter Washers; Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF1170M2-PEX). Key specifications — Includes: Locking Mechanism; Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF1170M2-PEX). Key specifications — Includes: Locking Mechanism; Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF 1170-US). Key specifications — Includes: Solid Wax Hydraulic Principle Thermostat; Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF 1170-US). Key specifications — Includes: Solid Wax Hydraulic Principle Thermostat; Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF 1170-UT-2-1/2"). Key specifications — Includes: Locking Mechanism; Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF 1170-UT-2-1/2"). Key specifications — Includes: Locking Mechanism; Brand: WATTS.

More from Watts

View all Watts parts →
WATTS Hot Water Extender Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN 3/4 LF70A). Key specifications — Brand: WATTS.
Watts
WATTS Hot Water Extender Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN 3/4 LF70A). Key specifications — Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN 0006269). Key specifications — Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN 0006269). Key specifications — Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size (MPN 0006271). Key specifications — Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size (MPN 0006271). Key specifications — Brand: WATTS.
WATTS Hot Water Extender Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN 1/2 LF70A-F). Key specifications — Brand: WATTS.
Watts
WATTS Hot Water Extender Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN 1/2 LF70A-F). Key specifications — Brand: WATTS.
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN 0006270). Key specifications — Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN 0006270). Key specifications — Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN 0006272). Key specifications — Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN 0006272). Key specifications — Brand: WATTS.
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size (MPN 0006274). Key specifications — Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size (MPN 0006274). Key specifications — Brand: WATTS.
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN 0006273). Key specifications — Brand: WATTS.
Watts
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN 0006273). Key specifications — Brand: WATTS.