---
product_id: 103795985
title: "Caleffi 553140 Automatic Filling Unit 1/2'' with Manual Cock, Strainer, Check Valve.and Pressure Gauge"
brand: "caleffi"
price: "751 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Caleffi"
url: https://www.desertcart.ro/products/103795985-caleffi-553140-automatic-filling-unit-1-2-with-manual-cock
store_origin: RO
region: Romania
---

# Built-in pressure gauge Auto-fill precision tech Calcification-resistant durability Caleffi 553140 Automatic Filling Unit 1/2'' with Manual Cock, Strainer, Check Valve.and Pressure Gauge

**Brand:** caleffi
**Price:** 751 Lei
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master your system’s flow with precision and confidence!

## Quick Answers

- **What is this?** Caleffi 553140 Automatic Filling Unit 1/2'' with Manual Cock, Strainer, Check Valve.and Pressure Gauge by caleffi
- **How much does it cost?** 751 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/103795985-caleffi-553140-automatic-filling-unit-1-2-with-manual-cock)

## 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:** Calcification-resistant internal preset ensures long-term reliability and minimal maintenance.
- • **All-in-One Convenience:** Includes manual cock, strainer, and check valve for seamless installation and superior system protection.
- • **Robust Operating Range:** Handles up to 16 bar pressure and 70°C temperature — engineered for demanding environments.
- • **Effortless Precision Filling:** Automatic filling unit with fine-tuned pressure control (0.3-4 bar) for flawless system balance.
- • **Real-Time Pressure Monitoring:** Integrated CALEFFI pressure gauge keeps you informed at a glance, eliminating guesswork.

## Overview

The Caleffi 553140 Automatic Filling Unit is a compact, metal-built plumbing essential designed for professional-grade water system management. Featuring an automatic filling mechanism, integrated pressure gauge, and calcification-resistant components, it supports operating pressures up to 16 bar and temperatures up to 70°C. This unit streamlines system maintenance with its all-in-one design including a manual cock, strainer, and check valve, making it a reliable choice for efficient, hassle-free water level control.

## Description

553140 Automatic filling unit with CALEFFI pressure gauge 1/2 " with pressure gauge Automatic filling group with tap, filter, non-return valve. With pressure gauge. Adjustment range: 0.3 ÷ 4 bar. Inlet Pmax: 16 bar. Operating temperature: 70 ° C.

Review: Very satisfied - My item was on time on the specified day all good
Review: Tweaking take a lot of time but it does the job - It delivers what it says on the tin. The only note I have is that the pressure tweaking (right desired pressure) will take you long time. The result of a regulation is visible after hours, so be patient and don't rush in changing too much too quickly.

## Features

- Automatic filling fitting, calcification-resistant internal preset
- With pressure gauge
- Adjustment range: 0.3 - 4 bar
- Max. Operating pressure: 16 bar
- Max. Operating temperature: 70 °C

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009L4HU72 |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Gold |
| Customer Reviews | 4.6 4.6 out of 5 stars (33) |
| Date First Available | 5 Dec. 2016 |
| Item Package Quantity | 1 |
| Item Weight | 500 g |
| Item model number | 553140 |
| Manufacturer | CALEFFI |
| Material | Metal (such as brass or bronze) |
| Number of Pieces | 1 |
| Package Dimensions | 15.7 x 10.2 x 5.6 cm; 500 g |
| Part Number | 553140 |
| Size | Piccolo |

## Product Details

- **Brand:** Caleffi
- **Colour:** Gold
- **Connector type:** Threaded Fitting (NPT)
- **Exterior finish:** Gold
- **Item weight:** 0.5 Kilograms
- **Material:** Metal (such as brass or bronze)
- **Number of pieces:** 1
- **Size:** Piccolo
- **Thread size:** 0.5 inch
- **Thread type:** NPT

## Images

![Caleffi 553140 Automatic Filling Unit 1/2'' with Manual Cock, Strainer, Check Valve.and Pressure Gauge - Image 1](https://m.media-amazon.com/images/I/41bztWWP5CL.jpg)
![Caleffi 553140 Automatic Filling Unit 1/2'' with Manual Cock, Strainer, Check Valve.and Pressure Gauge - Image 2](https://m.media-amazon.com/images/I/61xSjmHsJQL.jpg)

## Questions & Answers

**Q: What’s the max flow rate through this thing? My combi system has cold leak of 0.5bar/8hr. This valve doesn’t seem to raise the pressure at all.**
A: I have no problem with this valve it appears to have a good flow and did not need setting from memory the grey knob is a shut off, check the direction, you would have have two isolation valves in the system before fitting check them. The quarter turn plastic lever ones I have seen them strip and stay shut. Could be the strainer basket is blocked.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very satisfied
*by K***R on 17 October 2025*

My item was on time on the specified day all good

### ⭐⭐⭐⭐ Tweaking take a lot of time but it does the job
*by S***O on 16 November 2024*

It delivers what it says on the tin. The only note I have is that the pressure tweaking (right desired pressure) will take you long time. The result of a regulation is visible after hours, so be patient and don't rush in changing too much too quickly.

### ⭐⭐⭐⭐⭐ Good value and and well made
*by Z***. on 12 May 2025*

The first one was faulty but immediately replaced without fuss by the seller. It was a like for like replacement part by the same manufacturer and used to refurbish an old pressurisation unit in a commercial system. It has been working faultlessly now for nearly two years.

## Frequently Bought Together

- Caleffi 553140 Automatic Filling Unit 1/2'' with Manual Cock, Strainer, Check Valve.and Pressure Gauge
- 1/2" x 1/2" inch Union Pipe Connection Pipe Nipple Wire Carpenter Brass Fitting BSP Male

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-05*