We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size - Point-of-Use Mixing Valves
WATTSPoint-of-Use Mixing Valves

WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size

The WATTS Thermostatic Mixing Valve is a point-of-use mixing valve with 3/4 in inlet and outlet connection sizes, constructed from brass. It features a Solid Wax Hydraulic Principle Thermostat for temperature…

SKU 3G-OTH-596588

Also listed as: 34LFMMVPEX · 3 4 LF MMV PEX · 3-4-LF-MMV-PEX

Brand
WATTS
Item
Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size
Category
Point-of-Use 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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WATTS
Manufacturer Part Number
3/4 LF MMV-PEX
Type
Brass
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 Thermostatic Mixing Valve is a point-of-use mixing valve with 3/4 in inlet and outlet connection sizes, constructed from brass. It features a Solid Wax Hydraulic Principle Thermostat for temperature control. 3G Electric interprets your demand for this OEM-specified valve, sourcing it alongside components across 14 industrial departments, with specialist depth in combustion, pumps, and controls.

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, preventing scalding in showers, sinks, and other point-of-use applications. It is commonly specified in commercial and residential plumbing systems where temperature control is critical.

What are the specifications of the WATTS 3/4 LF MMV-PEX mixing valve?

This WATTS mixing valve has 3/4 in inlet and outlet connections, is made of brass, and uses a Solid Wax Hydraulic Principle Thermostat for precise temperature regulation. The manufacturer part number is 3/4 LF MMV-PEX. It is designed for point-of-use installations.

Where to buy a WATTS Thermostatic Mixing Valve worldwide?

3G Electric supplies the WATTS Thermostatic Mixing Valve worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source this valve alongside components from brands like Schneider, ABB, and SKF across 14 departments.

How to install a WATTS Thermostatic Mixing Valve?

Install the WATTS valve in the hot water supply line to the fixture, ensuring flow direction matches the arrow on the body. Follow local plumbing codes and the manufacturer's instructions for temperature setpoint adjustment. Always test outlet temperature after installation to verify 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-use 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

More from WATTS

View all WATTS parts
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF MMV-US)
WATTS
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LF MMV-US)
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LFMMVM1-PEX)
WATTS
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, Brass (MPN 1/2 LFMMVM1-PEX)
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size, NPT (MPN LFMMV-M1-UT)
WATTS
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size, NPT (MPN LFMMV-M1-UT)
WATTS Mixing Valve: 3/8 in Inlet Connection Size, 3/8 in Outlet Connection Size, Brass, Thermostatic (MPN LFUSG-CS)
WATTS
WATTS Mixing Valve: 3/8 in Inlet Connection Size, 3/8 in Outlet Connection Size, Brass, Thermostatic (MPN LFUSG-CS)
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size, NPT (MPN LFMMV-M1-UT)
WATTS
WATTS Thermostatic Mixing Valve: 1 in Inlet Connection Size, 1 in Outlet Connection Size, NPT (MPN LFMMV-M1-UT)
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN LFMMV-M1-QC)
WATTS
WATTS Thermostatic Mixing Valve: 3/4 in Inlet Connection Size, 3/4 in Outlet Connection Size (MPN LFMMV-M1-QC)
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, NPT (MPN LFMMV-M1-UT)
WATTS
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size, NPT (MPN LFMMV-M1-UT)
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN LFMMV-M1-QC)
WATTS
WATTS Thermostatic Mixing Valve: 1/2 in Inlet Connection Size, 1/2 in Outlet Connection Size (MPN LFMMV-M1-QC)