Inta Pressure Independent Thermostatic Radiator Valves

Inta Pressure Independent Thermostatic Radiator Valves (PITRVs)

The Inta Pressure Independent Thermostatic Radiator Valve (PITRV) combines the benefits of a thermostatic radiator valve with an integral differential pressure regulator, delivering reliable temperature control and balanced flow in one compact, high‑performance component. Designed for modern hydronic heating systems, this valve ensures each radiator receives the correct amount of flow regardless of pressure fluctuations, reducing noise, improving comfort, and simplifying commissioning.

Featuring preset flow rates and robust thermostatic control, these valves help maintain consistent performance, protect system efficiency, and support balanced heating circuits in both domestic and commercial installations. The pressure independent design eliminates the need for separate differential pressure control devices, streamlining plant room design and reducing installation time.

Why You Should Buy This Valve

✔ Pressure Independent Performance – Maintains a constant pressure differential to ensure set flow rates, even under variable system conditions.
✔ Preset Flow Rates – Each valve includes six pre‑set Kv values to limit maximum flow through the radiator for accurate balancing during commissioning.
✔ Thermostatic Control – Automatically adjusts to maintain desired room temperature while maximizing system efficiency.
✔ System Efficiency & Balance – Keeps the heating system in balance under fluctuating loads, optimising energy usage and comfort.
✔ Reduced Noise & Undesired Flow – Helps prevent uncontrolled high secondary return temperatures and reduces system noise often caused by pressure swings.
✔ Simplified Commissioning – Pre‑settings reduce the need for complex differential pressure regulators or additional balancing devices.

Key Specifications

• Brand: Inta

• Product Type: Pressure Independent Thermostatic Radiator Valve (PITRV)

• Function:

  • Pre‑set flow rates (six preset Kv values)

  • Integral differential pressure regulator

  • Thermostatic temperature control

• Application: Hydronic heating systems, radiator circuits in residential and commercial properties

• Benefits:

  • Maintains constant pressure differential across valve

  • Simplifies radiator balancing

  • Reduces noise and undesired secondary return temperature spikes

  • Enhances system performance under variable load conditions

• Ideal For: Systems with variable flow/pressure, multi‑radiator circuits, retrofit and new build installations

What’s in the Box

• 1 × Inta Pressure Independent Thermostatic Radiator Valve

• 1 × Lockshield Valve (matched pair where applicable)

• Set of six pre‑set Kv values for flow adjustment

• Installation and commissioning guide

• Adjustment tool (where required)

Note for Installers: Ensure valves are commissioned with the correct preset flow values for your system design to achieve optimal balancing. Follow manufacturer guidance for KN/Kv settings and differential pressure requirements.