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IVAR COMBIMIX COMBI-T Thermostatic Mixing Unit - 500454

$1,726.65 AUD incl. GST
$1,726.65 AUD incl. GST
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In stock (30 units), ready to be shipped
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Product details

The IVAR COMBIMIX COMBI-T 500454 is a thermostatic mixing unit for low-temperature hydronic underfloor heating. Its T5011 thermostatic head uses a remote liquid-expansion sensor to control the mixed flow temperature, with an adjustable setting range of 20–60°C. A two-way modulating injection valve regulates the flow entering the mixing circuit.

The compact assembly brings together mixing balance adjustment, pump isolation, fill and drain valves, automatic air vents, temperature gauges and an adjustable differential bypass. Model 500454 has a 130mm pump connection spacing and is supplied without a circulation pump.

Product Specifications

Features

Thermostatic mixing control

  • T5011 thermostatic head with a remote liquid-expansion temperature sensor.
  • Fixed-point temperature adjustment from 20–60°C.
  • Two-way modulating injection valve.
  • Secondary bypass balancing selector.
  • Adjustable differential bypass setting from 0.2–0.6 bar.

Service components

  • Circulation pump shut-off ball valve.
  • Fill and drain valves.
  • Automatic air bleed valves.
  • Temperature gauges with a 0–80°C scale and 40mm diameter.

Operating limits

  • Maximum operating temperature: 90°C.
  • Maximum operating pressure: 6 bar.
  • Maximum pressure difference across the control valve: 250 mbar.

Connections

  • Main connections: 1-inch female.
  • Secondary connections: 1-inch male with rotary nipples.
  • Inlet/outlet connection centre distance: 200mm.
  • Pump connections: 1½-inch female.
  • Pump connection centre distance: 130mm.
  • Circulation pump not included.

Materials

  • Upper and lower bodies: CB753S brass.
  • Other brass parts: CW617N brass.
  • Springs and snap rings: stainless steel.
  • Seals and O-rings: peroxide-cured EPDM.
  • Return and bypass lines: 15mm diameter nickel-plated half-hard copper.
  • Temperature gauge material: ABS.

Ordering Information

Manufacturer reference 500454 is the COMBI-T version supplied with a T5011 thermostatic head and adjustable differential bypass. The circulation pump is purchased separately.

Select a compatible pump with a 130mm connection length, suitable for the required heating duty and the unit’s 1½-inch female pump connections. Check the primary pipework and manifold connections before ordering. Manifolds and additional connection kits are selected separately.

Ordering / Size Information

Ordering / Size Information
Manufacturer ReferenceModelThermostatic HeadPump IncludedPump Connection Centres (mm)Temperature Setting (°C)Differential Bypass Setting (bar)
500454COMBI-TT5011No13020–600.2–0.6

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