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

Watts 3/4 LF70A Point-of-Source Mixing Valve, 3/4 in Outlet - Point-of-Source Mixing Valves
WattsPoint-of-Source Mixing Valves

Watts 3/4 LF70A Point-of-Source Mixing Valve, 3/4 in Outlet

The WATTS Hot Water Extender Mixing Valve (MPN 3/4 LF70A) is a point-of-source mixing valve with 3/4 in inlet and outlet connection sizes. 3G Electric interprets your demand for this OEM-specified valve, sourcing it…

SKU 3G-OTH-438477

Also listed as: 34LF70A · 3 4 LF70A · 3-4-LF70A

Brand
Watts
Item
3/4 LF70A Point-of-Source Mixing Valve, 3/4 in Outlet
Category
Point-of-Source Mixing Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
3/4 LF70A
Outlet Connection Size
3/4 in

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 Hot Water Extender Mixing Valve (MPN 3/4 LF70A) is a point-of-source mixing valve with 3/4 in inlet and outlet connection sizes. 3G Electric interprets your demand for this OEM-specified valve, sourcing it across our 14 industrial departments and leveraging specialist depth in controls to support your procurement.

Frequently Asked Questions

What is the WATTS 3/4 LF70A hot water extender mixing valve used for?

The WATTS 3/4 LF70A is a point-of-source mixing valve designed to extend the usable capacity of a water heater by blending hot and cold water to a safe, tempered outlet temperature. It is commonly used in commercial and residential plumbing systems to prevent scalding and increase hot water availability.

What are the specifications of the WATTS 3/4 LF70A mixing valve?

The WATTS 3/4 LF70A has a 3/4 inch inlet and 3/4 inch outlet connection size. It is a point-of-source mixing valve manufactured by WATTS, with the part number 3/4 LF70A. The valve is designed for hot water extension applications and is made from lead-free materials.

Where to buy the WATTS 3/4 LF70A mixing valve worldwide?

You can source the WATTS 3/4 LF70A mixing valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this WATTS point-of-source mixing valve.

How to install a WATTS point-of-source mixing valve like the 3/4 LF70A?

Install the WATTS 3/4 LF70A on the hot water supply line near the water heater, following local plumbing codes. Ensure the inlet and outlet connections are properly sized and sealed. Always test the tempered water temperature after installation and adjust the valve as needed for safe operation.

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
The Watts 1/2 LF70A-F is a point-of-source mixing valve with 1/2 inch inlet and outlet connections. It is used to regulate hot water temperature at the source, preventing scalding in residential and commercial plumbing systems. Commonly applied with water heaters, boilers, and storage tanks to deliver tempered water to fixtures
Watts
The Watts 1/2 LF70A-F is a point-of-source mixing valve with 1/2 inch inlet and outlet connections. It is used to regulate hot water temperature at the source, preventing scalding in residential and commercial plumbing systems. Commonly applied with water heaters, boilers, and storage tanks to deliver tempered water to fixtures
This brass thermostatic mixing valve blends hot and cold water to a consistent outlet temperature. It features 3/4-inch outlet connection and includes integral filter washers. Commonly used in plumbing systems to provide tempered water at individual fixtures
Watts
This brass thermostatic mixing valve blends hot and cold water to a consistent outlet temperature. It features 3/4-inch outlet connection and includes integral filter washers. Commonly used in plumbing systems to provide tempered water at individual fixtures
Point-of-source mixing valve with 3/4 inch inlet and outlet connections. Blends hot and cold water to deliver a consistent outlet temperature for plumbing fixtures
Watts
Point-of-source mixing valve with 3/4 inch inlet and outlet connections. Blends hot and cold water to deliver a consistent outlet temperature for plumbing fixtures
This brass point-of-source mixing valve blends hot and cold water to a consistent outlet temperature. It features 1/2 in inlet and outlet connections and includes a locking mechanism to secure the temperature set-point. Suitable for use in plumbing systems to supply tempered water
Watts
This brass point-of-source mixing valve blends hot and cold water to a consistent outlet temperature. It features 1/2 in inlet and outlet connections and includes a locking mechanism to secure the temperature set-point. Suitable for use in plumbing systems to supply tempered water
Thermostatic mixing valve for point-of-source applications. Blends hot and cold water to deliver a consistent outlet temperature. Features 1/2 in inlet and outlet connections. Suitable for use in plumbing systems to control water temperature at fixtures such as sinks and showers
Watts
Thermostatic mixing valve for point-of-source applications. Blends hot and cold water to deliver a consistent outlet temperature. Features 1/2 in inlet and outlet connections. Suitable for use in plumbing systems to control water temperature at fixtures such as sinks and showers
This point-of-source mixing valve blends hot and cold water to deliver a controlled outlet temperature. Constructed of brass with 3/4 inch inlet and outlet connections, it includes integral filter washers. Suitable for commercial and residential plumbing systems to provide tempered water for fixtures such as showers and sinks
Watts
This point-of-source mixing valve blends hot and cold water to deliver a controlled outlet temperature. Constructed of brass with 3/4 inch inlet and outlet connections, it includes integral filter washers. Suitable for commercial and residential plumbing systems to provide tempered water for fixtures such as showers and sinks

More from Watts

View all Watts parts
Thermostatic mixing valve with 1/2 in outlet connection. Blends hot and cold water to maintain a consistent outlet temperature. Suitable for point-of-source applications such as sinks, showers, or wash stations
Watts
Thermostatic mixing valve with 1/2 in outlet connection. Blends hot and cold water to maintain a consistent outlet temperature. Suitable for point-of-source applications such as sinks, showers, or wash stations
This point-of-source mixing valve blends hot and cold water to a consistent outlet temperature. It features a 1-inch outlet connection size and is used in plumbing systems for showers, sinks, and process applications requiring tempered water
Watts
This point-of-source mixing valve blends hot and cold water to a consistent outlet temperature. It features a 1-inch outlet connection size and is used in plumbing systems for showers, sinks, and process applications requiring tempered water
Point-of-source thermostatic mixing valve with 3/4 in outlet connection. Blends hot and cold water to deliver a consistent outlet temperature. Used in commercial and industrial water systems for showers, sinks, or process equipment
Watts
Point-of-source thermostatic mixing valve with 3/4 in outlet connection. Blends hot and cold water to deliver a consistent outlet temperature. Used in commercial and industrial water systems for showers, sinks, or process equipment
This point-of-source mixing valve blends hot and cold water to a consistent outlet temperature. Constructed of brass with 1-inch inlet and outlet connections, it incorporates a solid wax hydraulic principle thermostat for temperature control. Suitable for commercial and residential plumbing systems to provide tempered water at showers, sinks, and other fixtures
Watts
This point-of-source mixing valve blends hot and cold water to a consistent outlet temperature. Constructed of brass with 1-inch inlet and outlet connections, it incorporates a solid wax hydraulic principle thermostat for temperature control. Suitable for commercial and residential plumbing systems to provide tempered water at showers, sinks, and other fixtures
This point-of-source mixing valve blends hot and cold water to deliver a consistent outlet temperature. It features 1-inch solder inlet and outlet connections and includes a locking mechanism to secure the temperature setting. Suitable for use in plumbing systems requiring tempered water at the fixture
Watts
This point-of-source mixing valve blends hot and cold water to deliver a consistent outlet temperature. It features 1-inch solder inlet and outlet connections and includes a locking mechanism to secure the temperature setting. Suitable for use in plumbing systems requiring tempered water at the fixture
Brass thermostatic mixing valve with 3/4-inch inlet and outlet connections. Includes PEX tubing. Blends hot and cold water to deliver a controlled outlet temperature at the point of use, suitable for plumbing systems requiring precise temperature regulation
Watts
Brass thermostatic mixing valve with 3/4-inch inlet and outlet connections. Includes PEX tubing. Blends hot and cold water to deliver a controlled outlet temperature at the point of use, suitable for plumbing systems requiring precise temperature regulation
Point-of-source thermostatic mixing valve with 1-inch NPT inlet and outlet connections, constructed from brass. Includes check valves. Used to blend hot and cold water to a consistent outlet temperature for applications such as showers, sinks, and process water systems
Watts
Point-of-source thermostatic mixing valve with 1-inch NPT inlet and outlet connections, constructed from brass. Includes check valves. Used to blend hot and cold water to a consistent outlet temperature for applications such as showers, sinks, and process water systems
This brass point-of-source mixing valve blends hot and cold water to a regulated temperature. It includes a solid wax hydraulic principle thermostat for consistent outlet temperature. Typical applications include use at water heaters or boilers to prevent scalding
Watts
This brass point-of-source mixing valve blends hot and cold water to a regulated temperature. It includes a solid wax hydraulic principle thermostat for consistent outlet temperature. Typical applications include use at water heaters or boilers to prevent scalding