# Thermostatic valve set Perfexim PHA-037W axial left white with fittings

**URL:** https://aio.lv/en/product--perfexim-20-037-0000-001--11699742
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** Perfexim
**Manufacturer code:** 20-037-0000-001
**EAN:** 5901880020568
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Thermostatic valve set Perfexim PHA-037W is an axial left-mounted valve assembly in white finish, supplied with fittings. Designed for temperature regulation in hydronic heating systems, it allows connection to radiators where left-side axial installation is required. Suitable for controlling flow to maintain set room temperature and for use in residential and light commercial radiator installations.

## Long description

Thermostatic valve set Perfexim PHA-037W axial left white with fittings is a left-axial thermostatic radiator valve in a white finish, supplied complete with connection fittings for straightforward installation. Designed for hydronic heating systems, this valve set allows precise regulation of flow to a radiator to maintain a selected room temperature. The left-axial configuration is suitable where the pipe connection is positioned on the radiator’s left side and when side-entry installation is required.
Advantages
The valve set provides stable temperature control through a thermostatic sensing mechanism that modulates water flow according to room conditions. Supplied with matching fittings, it reduces installation time and ensures reliable connection to standard radiator outlets. The white finish offers a neutral appearance that integrates with common interior styles while providing corrosion-resistant exterior protection suitable for residential and light commercial environments.
Suitable for
Domestic radiator installations with left-side axial connections
Light commercial heating systems requiring room temperature control
Retrofit projects where existing piping enters the radiator from the left
Hydronic systems using thermostatic control for energy-efficient operation
Key specifications
Orientation: left-axial (side-entry, left side)
Finish: white powder-coated or painted surface
Function: thermostatic regulation of radiator flow to maintain set temperature
Includes: valve body and connection fittings for radiator installation
Application: hydronic central heating radiators in residential and light commercial buildings
How to use
Install the valve set onto the radiator’s left-side inlet using the supplied fittings, ensuring all connections are tightened to the manufacturer’s recommended torque and sealing methods. Fit the thermostatic head or actuator compatible with the valve body, set the desired room temperature on the thermostat head, and balance the system as part of overall radiator commissioning. After installation, check for leaks and operate the thermostat through its range to confirm smooth modulation of flow and correct temperature response.
Usage recommendations
For reliable performance, commission the valve as part of a balanced heating circuit: flush and fill the system according to local standards, remove air from radiators, and use compatible thermostatic heads rated for the valve body. When replacing an existing valve, verify left-axial orientation and correct pipe dimensions before ordering. Periodic inspection and system water quality management will prolong valve service life.

## FAQ

### What payment options are available?

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### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Perfexim products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Perfexim service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

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