4 Way Mixing Unit with Grundfos Pump, Temp & Pressure Gauge

The 4 Way Mixing Unit with Grundfos Pump, including temperature and pressure gauge, from TUS is engineered to deliver precise temperature control and reliable performance for underfloor heating systems.

Designed for seamless integration with our premium stainless steel manifolds, this unit ensures your system circulates water at optimal temperatures, improving efficiency and protecting the system from over- or under-heating.

The compact unit features a trusted Grundfos UPM3 Auto high-efficiency pump, a thermostatic blending valve, and integrated temperature and pressure gauges – all pre-assembled for fast, hassle-free installation.

Suitable for both new builds and retrofit applications and compatible with a range of traditional and renewable heat sources, including boilers and heat pumps, it maintains a stable flow temperature, ideal for underfloor heating circuits.

With a wider temperature control range of 20 – 60°C, the TUS unit can be used to speed up screed drying times to keep project timescales on track (consult with your screed provider).

Whether you’re installing a single zone or larger multi-zone system, this 4 way mixing unit with Grundfos pump provides consistent and flexible performance, with easy maintenance from a trusted brand.

TECHNICAL INFORMATION:

• Compatible with all TUS stainless steel manifolds
• Pre-assembled to save install time (comes with a left-side manifold connection)
• Suitable for left- or right-side manifold connection
• Product dimensions:
  192mm (width)
  210mm (distance between flow and return bar connections)
• Grundfos high-efficiency pump specification: UPM3 Auto
• Integrated pressure and temperature gauges
• 4 Way thermostatic blending valve for temperature control with adjustable range: 20°C–60°C
• Low adjustable range allows for speeding up screed drying times
• Maximum working temperature: 110°C (temp sensor accuracy +/- 2°C)
• 1” connections (fits standard manifold ball valves)
• Designed for operating pressure up to 10 bar
• Suitable for both low- and high-temperature heat sources (including boilers and heat pumps)
• ISO 228-1 compliant

WARRANTY INFORMATION:
Standard 2-year product warranty upon purchase.
Free extended 5-year product warranty upon registration.