More information about our fittings

Welcome to New-Heating – Your Partner for Quality Fittings at the Lowest Price!

At New-Heating, we offer a wide range of top-quality fittings for various heating and water system applications. Whether you need fittings for central heating, drinking water, or gas, we always have the right solution for your project. We work with the best brands and guarantee that all fittings meet the highest quality and safety standards.

Our Products:

Aquagas M/F Fittings

Our Aquagas M and V press fittings are specially approved for both water and gas installations in the Netherlands, Belgium, Germany, and other countries. By replacing the O-ring with a green Viton O-ring, these fittings can also be used for solar installations. The fittings are designed for easy pressing with M or V profile press jaws and are available in diameters from 15 mm to 54 mm. Leak before press means the fittings will leak if not pressed correctly, ensuring a safe installation.

Galvanized Steel M/F Fittings

Our galvanized steel fittings are ideal for central heating applications in the Netherlands and Belgium. They are equipped with an EPDM O-ring and a press-check mechanism, meaning the fitting only works properly if it is pressed correctly. Available in various diameters, from 15 mm to 108 mm, we offer you the perfect solution for your heating system.

Threaded fittings

For central heating and water systems, we offer a wide range of threaded fittings in materials such as cast iron , galvanized steel , brass , and steel . Our threaded fittings are suitable for temperatures from -20°C to 25 bar pressure and are available with conical male and cylindrical female threads . We stock various sizes, from ⅜" to 2", so you can always find the right size.

Multilayer Press Fittings (LBP)

Our multilayer press fittings are perfect for both heating and domestic water. They are approved according to KIWA and DVGW standards in the Netherlands and Germany. The Leak Before Press indicator makes it easy to see if the fittings are properly connected. The press fittings are available in diameters from 16 x 2 mm to 32 x 3 mm and are designed for use with TH, U, F, B, and H press jaws.

Compression Fittings for Copper and Thin-Walled Steel Pipe

For both heating and plumbing applications, we offer a wide range of compression fittings suitable for copper and thin-walled steel pipes . These are also suitable for gas installations and are available for pipes with diameters from 12 mm to 28 mm .

Black and Galvanized Cast Iron Fittings

At New-Heating, we offer a wide range of black cast iron and galvanized fittings , including elbows, elbows, sleeves, tees, reducers, nipples, reducing sleeves, plugs, and straight or right-angle couplings. Our fittings are available in diameters from ⅜” to 2” and are perfect for industrial and heating installations.

Black and Galvanized Pipe Nipples

In addition to fittings, we also offer black and galvanized pipe nipples . These are suitable for various applications and are supplied with MM ends . They are available in various sizes and connection diameters, from 1/2 by 60 mm to 4/4 by 200 mm .

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Why Choose New-Heating?

• Highest Quality : We only offer fittings that meet the strictest quality and safety standards.
• Large Stock : Our large stock allows us to deliver quickly, so you never have to wait long for the materials you need.
• Lowest Price : By buying directly from the manufacturer in bulk, we can guarantee you the lowest prices without compromising on quality.
• Expertise : Our team has years of experience in heating and installation technology and is happy to help you find the right products for your project.
• Fast Delivery : Thanks to our efficient model, we can deliver quickly and cost-effectively to locations in the Netherlands and Belgium.

Do you have specific questions or can't find a product? Please contact us and we'll be happy to help!

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At New-Heating, we're proud of our products and service. We ensure you always get the best materials at the lowest price, so your projects can be completed efficiently and within budget. Visit our webshop and discover everything we can do for you!

🔧 Chapter 1: Fittings – The Essential Link in Every Installation

Fittings are the essential connections within every heating and plumbing system. At New-Heating, we offer a wide range of high-quality fittings that ensure reliable and durable installations.

Why are fittings so important?

• Connection : They connect pipes and components together.

• Safety : Prevent leaks and ensure a closed system.

• Flexibility : Enables adjustments and expansions without major renovations.

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🛠️ Chapter 2: Types of Fittings at New-Heating

At New-Heating you will find various fittings, each with specific applications:

1. Compression fittings

• Application : For connecting copper or steel pipes without soldering.

• Advantage : Easy installation, suitable for both water and gas pipes.

2. Press fittings

• Application : For plastic and multilayer pipes, used in central heating and drinking water systems.

• Advantage : Quick and leak-free connection using pressing tools.

3. Threaded fittings

• Application : For systems where threaded connections are required, such as radiators.

• Advantage : Strong and reliable connection, easy to disassemble.

4. Solder fittings

• Application : For permanent connections in copper piping systems.

• Advantage : Durable and strong connection, ideal for high pressure and temperature systems.

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🧰 Chapter 3: Materials and Quality

Our fittings are made of high-quality materials such as:

• Brass : Corrosion resistant and durable, suitable for various applications.

• Stainless Steel (Stainless Steel) : Ideal for aggressive environments and high temperatures.

• Plastic : Lightweight and easy to install, perfect for drinking water systems.

All fittings comply with the relevant standards and quality marks, such as KIWA and GASTEC , which guarantees quality and safety.

🧪 Chapter 6: Innovations in Fitting Technology

The fittings industry is developing rapidly. New-Heating consciously chooses manufacturers who are at the forefront of innovation. Consider:

• Push-fit technology – Tool-free installation

• Leak-before-press systems – Leak detection before permanent connection

• Smart fittings – With integrated pressure sensors or flow indication

• Multi-material compatibility – One fitting for multiple pipe types

These innovations reduce installation time and increase reliability, especially in complex or difficult-to-access systems.

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🔁 Chapter 7: Maintenance and Replacement

Although many fittings last for decades, periodic maintenance remains important. This prevents leakage, corrosion, and functional failure.

Practical maintenance tips:

• Annual inspection : In particular, check compression fittings and rubber seals.

• Preventive replacement : In case of age or system upgrade (e.g. to heat pump).

• Use original O-rings : Compatibility is crucial, especially with press systems.

New-Heating also offers maintenance kits with spare parts and lubricants.

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🏗️ Chapter 8: Fittings by Application

Each application places different demands on fittings:

New-Heating structures the webshop in such a way that you can filter on these applications.

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👨🔧 Chapter 9: For Professionals and Individuals

New-Heating serves two types of customers:

For professional installers:

• Bulk purchase with discount

• System cases with fittings per size

• Technical specification sheets per product

For do-it-yourselfers:

• Step-by-step assembly instructions

• Access to YouTube demo videos

• Easy ordering process with starter kits

The webshop automatically detects which segment you serve and adjusts the content accordingly.

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📦 Chapter 10: Logistics, Packaging and Returns

New-Heating ensures a streamlined logistics process:

• Real-time inventory insight thanks to 2BA connection

• Clearly labeled boxes by size/type of fitting

• 30-day return policy for unopened packages

• Delivery with tracking and signature confirmation

For large projects, we supply custom-made sorting bins with compartments divided by fitting type.

🌍 Chapter 11: Environmental Impact and Sustainability

At New-Heating, we believe in fittings that are not only functional but also future-proof. That's why we only select suppliers certified according to environmental standards such as ISO 14001.

Our sustainable choices:

• Lead-free brass fittings : safer for people and the planet

• Recyclable plastics : less waste, easier to dismantle

• Transport optimization : smaller boxes = less CO₂

• Longer life = less replacement

Your fitting isn't a disposable product – it's a building block for a more sustainable home.

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🔄 Chapter 12: Fittings in heat pump systems

A heat pump requires fittings that can handle much more than standard pressure: they must withstand vibration, condensation, temperature spikes and chemical interaction with glycol.

That is why we supply, among other things:

• Rotation-resistant couplings with flexible core

• O-rings with heat and frost resistant silicone

• Anti-condensation coating for outdoor units

• Compatibility with SPRSUN Ultra Silence + Hydronic tank

With every heat pump you receive a tailor-made fitting package, based on capacity, application and installation.

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🏆 Chapter 13: Fittings vs. Welding, Gluing, Clamps

Why glue or weld when you can also use fittings?

That's why installers choose New-Heating fittings . Safe, fast, and universally applicable.

🔧 Chapter 16: Fittings per installation application (central heating, plumbing, gas, heat pump)

At New-Heating, we supply only fittings precisely tailored to the end application . Each system has specific requirements regarding material, pressure, medium, and temperature.

1. CV systems (hot water, closed system)

• Brass compression fittings with a minimum working pressure of 16 bar

• Press fittings with HNBR/O-rings according to EN 681-1

• Use of flash point-free compounds recommended

• Compatible with: all common plastic/aluminium pipes

2. Sanitary facilities (cold/warm drinking water)

• Lead-free brass fittings according to EN 12165-CW617N

• WRAS/KTW inspection required for drinking water installations

• Push-fit couplings suitable for quick construction

3. Gas applications

• Only Gastec QA-certified fittings

• Rubber seals resistant to min. 70°C

• Copper compression fittings with conical ring recommended

4. Heat pump technology

• Vibration-free press couplings with double O-ring

• Resistance to glycol mixtures and thermal expansion

• Sprsun Ultra Silence + Hydronic tanks require a specific brass/plastic transition with a UV barrier.

📌 Each fitting type is automatically tagged per application on our Shopify for ease of use and SEO.

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🔬 Chapter 17: Materials Science – Why You Don't Just Use Any Fitting

Choosing the right material is crucial:

At New-Heating we check the ISO/EN standards for each fitting type and state this on the product page for each product.

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📏 Chapter 18: Sizing and compatibility per fitting type

Common sizes:

• 16x2 – 20x2 – 26x3 – 32x3 for underfloor heating and heat pump

• 15mm – 22mm – 28mm – 35mm for copper installations

• 3/8", 1/2", 3/4", 1" BSPT for threaded fittings

We state with every fitting:

• Exact inner and outer diameter

• Thread type (M/F, conical or cylindrical)

• Compatibility with pipe material (PEX, alupex, copper, steel, PVC-C)

💡 Your customers can quickly search for size + application + medium using filters in Shopify.

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📜 Chapter 19: Standards, inspections and certificates – what really counts?

Our fittings meet the strictest European standards:

• EN 1254-2 / ​​EN 1254-3 / EN 10226 → for brass and copper

• ISO 21003-2 / ISO 228-1 → for multilayer pipes and threads

• Gastec QA, DVGW, WRAS, KIWA → for gas and drinking water

• REACH/RoHS compliance → no harmful substances

For every fitting in the webshop we offer:

• PDF technical sheet

• Assembly instructions

• Downloadable inspection certificate

🛠️ Chapter 21: Fittings in combination with New-Heating heat pumps

When installing our SPRSUN Ultra Silence heat pumps , Haier ProWarm , or Rotenso Airmi/Windmi, the choice of fittings is crucial. The pipes must:

• Resistant to pressure variations up to 10 bar

• Frost resistant in outdoor installation (down to -25 °C)

• Be compatible with glycol mixtures

• Stay flexible with compressor vibrations

That is why we supply the following for every heat pump:

• Brass reducers with PTFE seal

• PPSU press fittings with double O-ring (EPDM + FKM)

• Compression fittings with extra long nipple for a firm hold

Every pump on new-heating.com has a “View Recommended Fittings” section for immediate application.

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🧯 Chapter 22: Common Fitting Mistakes (and How to Avoid Them)

Installation errors often cause leaks, malfunctions, and damage. The top 5 mistakes we see installers make:

We provide our customers with checklists and assembly cards per fitting type.

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🧩 Chapter 23: Fitting Selection for Renovations and Conversions

In existing homes or installations you will encounter many types of pipes:

• Old copper (sometimes different dimensions)

• Galvanized steel

• Plastic pipes with unknown structure

That is why we offer:

• Reducers with external and internal threads

• Couplings with universal cone and flat seal

• Compression fittings with packing ring for imperfect pipes

Our fitting configurator on the website will help you find the right connection by answering three questions, even in difficult situations.

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🔁 Chapter 24: When to Replace a Fitting?

Fittings are often overlooked – until it's too late. These are signs that a fitting needs replacing :

• O-ring brittle, deformed or torn

• Brass discoloured / turned green (oxidation)

• Slight drip leakage during pressure build-up

• Fitting rotates or moves when touched

• Unexplained loss of pressure or air in the system

The average lifespan is:

• Plastic fitting : 10–15 years

• Brass fitting : 15–25 years (DZR often longer)

• Steel/stainless steel : up to 40 years (depending on medium)

For heat pump renovations, we recommend proactive replacement of all couplings, especially those older than 15 years.

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🏗️ Chapter 25: Project-Based Fitting Purchasing – Wholesale vs. New-Heating

For larger projects, more and more installers are choosing to purchase directly from New-Heating , because:

📦 For larger projects we supply:

• Pre-selected mounting sets per application

• Packaging per home/zone/unit

• Assembly drawings + print-ready labels

Please ask for our project folder “Heat Pump Renovation Fitting Set” for sample calculations.