---
product_id: 104092069
title: "Caleffi Adjustable Thermostatic Mixing Valve 1/2 Inch 30 - 65 °C Anti-scale 521400"
brand: "caleffi"
price: "€ 179.00"
currency: EUR
in_stock: true
reviews_count: 1
category: "Caleffi"
url: https://www.desertcart.de/products/104092069-caleffi-adjustable-thermostatic-mixing-valve-1-2-inch-30-65
store_origin: DE
region: Germany
---

# Handles up to 14 bar pressure Durable dezincification-resistant alloy Precise temp control 30-65°C Caleffi Adjustable Thermostatic Mixing Valve 1/2 Inch 30 - 65 °C Anti-scale 521400

**Brand:** caleffi
**Price:** € 179.00
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your water system with precision and durability!

## Quick Answers

- **What is this?** Caleffi Adjustable Thermostatic Mixing Valve 1/2 Inch 30 - 65 °C Anti-scale 521400 by caleffi
- **How much does it cost?** € 179.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/104092069-caleffi-adjustable-thermostatic-mixing-valve-1-2-inch-30-65)

## Best For

- caleffi enthusiasts

## Why This Product

- Trusted caleffi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Chrome-plated, dezincification-resistant alloy body ensures long-term durability
- • **Consistent Comfort, Always:** Maintains your perfect water temperature despite inlet fluctuations
- • **Pressure-Proof Performance:** Operates reliably under high pressure up to 14 bar for demanding systems
- • **Certified Quality Assurance:** Meets rigorous EN 1287 standards for safety and reliability
- • **Sleek & Seamless Integration:** Compact 1/2 inch BSP thread with chrome finish fits modern plumbing aesthetics

## Overview

The Caleffi Adjustable Thermostatic Mixing Valve 1/2 Inch 521400 expertly regulates domestic hot water temperature between 30-65°C, ensuring consistent comfort. Crafted from a chrome-plated, dezincification-resistant alloy, it withstands pressures up to 14 bar and meets EN 1287 certification, making it a reliable, long-lasting solution for modern plumbing systems.

## Description

Function The thermostatic mixing valve is used in systems that produce domestic hot water. It is designed to maintain the preset temperature of the mixed water delivered to the user outlet, when there are variations in the temperature and pressure of the hot and cold water at the inlet, or in the drawn-off flow rate. These devices are also available with fittings complete with strainers and check valves on the hot and cold water inlets.

Review: I wish I hadn't get rid of the box - Please check if your valve have the "check valves" included. Which in my case wasn't. Without them you will have for example hot water coming through cold water outlet. Better to get one of those valves from screwfix or toolstation.

## Features

- Adjustable anti-scale thermostatic mixing valve
- Dezincification resistant alloy body. Chrome plated
- Max. working pressure: 14 bar
- Max. inlet temperature: 85°C
- Certified to EN 1287

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FEJR6IQ |
| Brand | Caleffi |
| Colour | Chrome |
| Connector Type | Adapter/Reducer |
| Connector type | Adapter/Reducer |
| Country of Origin | Germany |
| Customer Reviews | 3.6 out of 5 stars 3 Reviews |
| Exterior Finish | Chrome |
| Global Trade Identification Number | 08016615036626 |
| Item Dimensions | 15.2 x 13.4 x 4.5 centimetres |
| Item dimensions L x W x H | 15.2 x 13.4 x 4.5 centimetres |
| Manufacturer | Caleffi |
| Material | Metal |
| Model Number | 521400 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Part Number | 521400 |
| Size | 1/2 inch |
| Thread Size | 1/2 inch |
| Thread Type | BSP |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Caleffi
- **Colour:** Chrome
- **Connector type:** Adapter/Reducer
- **Exterior finish:** Chrome
- **Item dimensions L x W x H:** 15.2 x 13.4 x 4.5 centimetres
- **Material:** Metal
- **Number of pieces:** 1
- **Size:** 1/2 inch
- **Thread size:** 1/2 inch
- **Thread type:** BSP

## Images

![Caleffi Adjustable Thermostatic Mixing Valve 1/2 Inch 30 - 65 °C Anti-scale 521400 - Image 1](https://m.media-amazon.com/images/I/61YvFBqnd9L.jpg)

## Customer Reviews

### ⭐ I wish I hadn't get rid of the box
*by L***I on 3 February 2020*

Please check if your valve have the "check valves" included. Which in my case wasn't. Without them you will have for example hot water coming through cold water outlet. Better to get one of those valves from screwfix or toolstation.

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**Shop now:** [https://www.desertcart.de/products/104092069-caleffi-adjustable-thermostatic-mixing-valve-1-2-inch-30-65](https://www.desertcart.de/products/104092069-caleffi-adjustable-thermostatic-mixing-valve-1-2-inch-30-65)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-10-17*