# Caleffi Pre-Adjustable Automatic Filling Valve 1/2" Inside Npt Inlet X 1/2" Outside Npt Outlet 553542A

**Brand:** [Caleffi](https://shop.coreranger.com/brands/Caleffi)
**SKU:** 553542A
**Price:** $167.77 · in stock
**URL:** https://shop.coreranger.com/product/caleffi-caleffi-pre-adjustable-automatic-filling-valve-1-2-inside-npt-inlet-x-1-2-outside-npt-outlet-700047905

## Specifications

| Spec | Value |
|---|---|
| Model # | 553542A |
| Internet # | 700047905 |
| Store SKU # | 1015841822 |
| HVAC Product Type | Fill Valve |
| Product Width (in.) | 4 in |
| Manufacturer Warranty | 90 day parts warranty. |
| Brand/Model Compatibility | Caleffi |

## Description

The Caleffi 553542A Automatic Filling Valve features a 1/2" inside NPT inlet and 1/2" outside NPT outlet, designed to regulate system refill and pressure balance in HVAC loops. It is pre-adjustable for precise flow control.