---
product_id: 226441650
title: "Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad"
brand: "ostendorf"
price: "8 zł"
currency: PLN
in_stock: false
url: https://www.desertcart.pl/products/226441650-ostendorf-k11478-003-htsafe-bow-gray-dn-50-45-grad
store_origin: PL
region: Poland
---

# Sound insulation levels I-III Fire protection class B1 Complies with DIN EN 1451-1 Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad

**Brand:** ostendorf
**Price:** 8 zł
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Elevate your build with HTSafe — where safety meets silence!

## Quick Answers

- **What is this?** Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad by ostendorf
- **How much does it cost?** 8 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/226441650-ostendorf-k11478-003-htsafe-bow-gray-dn-50-45-grad)

## Best For

- ostendorf enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compliance:** Manufactured to strict European DIN EN 1451-1 standards—no extra approvals needed.
- • **Lightweight & Durable:** Robust PP plastic design weighing just 40g for easy installation and lasting reliability.
- • **Versatile Application:** Perfectly engineered for residential, commercial, and healthcare environments.
- • **Flame-Resistant Safety:** HTSafe’s B1 fire protection rating keeps your building secure and compliant.
- • **Whisper-Quiet Performance:** Certified sound insulation from single-family homes to hospitals ensures peace and privacy.

## Overview

The Ostendorf K11478-003 HTSafe Bow is a high-performance, gray PP plastic fitting designed for building construction. It features a 45-degree DN 50 size, meets stringent European fire protection class B1 standards, and offers sound insulation levels I to III, making it ideal for residential, commercial, and hospital use. Manufactured according to DIN EN 1451-1, it requires no additional approvals and combines lightweight durability with versatile application.

## Description

Ostendorf aims to offer customers many high-quality products and satisfy the needs of all customers. To achieve this, Ostendorf will spend more time using and designing the products. In our shop you will find more and more classic, fashionable products.

## Features

- HTSafe is the successor to HT. Thanks to many improvements, it can be used in all areas of building construction.
- HTSafe meets the fire protection class B1 and is therefore considered flame ant.
- HTSafe meets all sound insulation levels from I to III and is therefore applicable in single-family homes, residential and business properties and hospitals.
- Approval is not required, as HTSafe is manufactured according to European standard DIN EN 1451-1.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | OSTENDORF |
| Part Number | 172120 |
| Product Dimensions | 15 x 12 x 5 cm; 40 g |
| Item model number | K11478-003 |
| Size | DN 50 45 Grad |
| Colour | Gray |
| Material | PP plastic. |
| Item Package Quantity | 1 |
| Usage | Building construction, Residential properties, Commercial properties, Hospitals |
| Included Components | Bow. |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 40 g |

## Product Details

- **Brand:** Ostendorf
- **Material:** PP plastic.
- **Colour:** Gray
- **Maximum pressure:** 2 Bars
- **Nominal wall thickness:** 2 millimeters
- **Outside diameter:** 50 Millimetres
- **Manufacturer:** OSTENDORF
- **Specific uses for product:** Building construction, Residential properties, Commercial properties, Hospitals

## Images

![Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad - Image 1](https://m.media-amazon.com/images/I/61HXP2oN4vL.jpg)
![Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad - Image 2](https://m.media-amazon.com/images/I/61lcypSqaSL.jpg)
![Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad - Image 3](https://m.media-amazon.com/images/I/41ELJGI1vUL.jpg)
![Ostendorf K11478-003 HTsafe Bow, Gray, DN 50 45 Grad - Image 4](https://m.media-amazon.com/images/I/61fl5NuF8AL.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

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**Shop now:** [https://www.desertcart.pl/products/226441650-ostendorf-k11478-003-htsafe-bow-gray-dn-50-45-grad](https://www.desertcart.pl/products/226441650-ostendorf-k11478-003-htsafe-bow-gray-dn-50-45-grad)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-22*