UTC300, Pump flange and external thread
UTC300, Pump flange and external thread

Load valve set

UTC300

The ESBE series UTC300 is a combination of two thermostatic 3-way valves designed to protect the boiler from return temperatures that are too low. Maintaining a high and stable return temperature means a higher level of boiler efficiency, reduced tarring and increased life span of the boiler. The UTC300 is used in heating applications up to 20kW, where solid fuel boilers are used to feed storage tanks.
  • Applications up to 20kW
  • Efficient use of energy
  • No power supply needed
  • Reduced time of buffer tank load
  • Correct stratification

Product range

UTC300_front_A-01
UTC317
UTC300_side_A-01
SerieS UTC317, Pump Flange and external thread
Art.no.ReferenceDNKvs** Kvs-value in m3/h at a pressure drop of 1 bar.Connection GConnection HA mmB mmC mmD mmE mmF mmWeight kgNoteNTCNTC = National Trade Code
51500100UTC317202.3PF 1½"G 1"14742425772351.06  

Installation support

Installation examples
UTC300-01

Technical data

Suitable application area
Recommended
  • Heating
Technical data
Pressure class PN10 
Media temperature, max.: +100 °C
min.: 0 °C
Mixed temperature: 60°C + 45°C 
Max. differential pressure, Mixing: 100 kPa
Diverting: 30 kPa
Leakrate A - AB: Tight sealing 
Leakrate B - AB: max. 3% of Kvs 
Rangeability Kv/Kv min: 100 
Connections, External thread: ISO 228/1 
Material, Valve housing and other metal parts with fluid contact: Brass DZR, CW 625N (resistant to dezincification) 
Consists of Load valve VTC317, with opening temperature: 60 °C
Premixing valve VTC318, with opening temperature: 45 °C
Conformity: PED 2014/68/EU, article 4.3 
Flow pattern VTC317_grey_A-01
Load valve
VTC318_grey_A-01
Premixing valve
Dimensioning $name
Dimensioning guide - Please see data sheet

Accessories and spare parts

Spare parts
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual

VTC931

Thermostat VTC931 45°C
57000100VTC931Thermostat, 45°C Premix valve VTC318  

VTC931

Thermostat VTC931 60°C
57000300VTC931Thermostat, 60°C Load valve VTC317  

Download area

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Data Sheet UTC300
Installation instruction UTC300
2D Image UTC300

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