• Pressure differential control maintaining pre-set flow rates
  • Pre-set flow rates for commissioning
  • Thermostatic control
  • Maintaining the design efficiencyof the system
  • System remains balanced under fluctuating conditions
  • Prevention of uncontrolled high secondary return temperatures under low load
  • Reduced system noise

PTRV Flow Tables

PositionFlow rate (l/h) to EN215 valve onlyWith thermostatic head
flow variance +/- %
Minimum Flow (l/h)
12540%15
23525%26.5
35520%44
48010%72
59510%85.5
612010%108

HIU Technical Support

During Weekends and Holidays

Should you require technical support for the Hiper HIU unit during this period, please contact one of our service providers in your area, who will be happy to help.

Please note, you will be required to provide the following information:

  • Code
  • Serial number
  • Installation date
  • Proof of purchase or warranty registration
  • Fault / Fault Code
  • System conditions
Thermalcare Scotland Ltd

Cover: Scotland

Phone: 0141 4141411

Email: scotland@thermalcare.co.uk

Please call the office number and this will put you thought to out of hours.

Cover: London Areas

Phone: +44 (0) 207 247 9304

Email: info@sandhurstplumbing.co.uk

Address: 18 Blount Street, London, E14 7BZ

Cover: England

Address: Building Centre, 26 Store Street, London, WC1E 7BT

Phone: 077 0449 7243

Email: aruna@heatweb.co.uk

Cover: Midlands, North & North Wales

Address: Unit 3 Chemical Lane Longbridge Hayes Ind Estate, Stoke-on-Trent , ST6 4BP

Phone: 01782 630656

Email: ange.holland@HMM.co.uk

Cover: London Areas

Phone: 07725920241

Email: aaron@hiumechservices.com

Address: 53A lansdowne lane , London, SE7 8TN