UPVC Mullion Connector

A UPVC connector, also called a mullion connector, is an important part of double-glazed UPVC windows and doors. It connects different sections of the window or door frame together.

This small part helps make the full frame stronger and more stable—especially in larger or multi-part windows and doors.

If you are looking to buy UPVC connectors, this simple guide will help you understand what they do and why they matter.

Mullion Connectors Price

For detailed and up-to-date pricing information on door and window mullion connectors, please contact Winac’s export department directly. Our team is ready to provide tailored pricing and support based on your specific requirements.

 

Purchase UPVC Mullion Connectors from Winac

Winac is one of the UPVC mullion connector manufacturers in the world. This company produces world-class products that comply with the latest internationally recognized standards at its advanced and fully equipped factory.

 

Buy Door and Window Mullion Connector Online

To buy a window mullion connector online, please fill out the form below with your information including full name, country, city of residence, and email. After submitting your details, a sales representative from Winac will contact you.

 

Why Choose Winac for mullion connectors?

 Here’s why buying mullion connectors from Winac gives you peace of mind and confidence:

• Affordable Prices: Winac offers competitive pricing on all products, including espagnolette locks.
• Guaranteed Quality: Our products are made from high-quality materials and tested to meet international standards.
• Complete Product Range: Find a wide selection of UPVC door and window hardware all in one place.
• Responsive Customer Service: Our Customer Relations team is ready to handle your requests, suggestions, and concerns quickly and efficiently.

Which countries are Winac products exported to?

Winac makes world-class UPVC tools and hardware. We sell our products to nearby countries and the CIS region. These include Russia, Ukraine, Belarus, Kazakhstan, Azerbaijan, Turkmenistan, Georgia, Tajikistan, Kyrgyzstan, Armenia, Uzbekistan, Moldova, and Afghanistan. We also sell to Iraq and Gulf countries like Oman, UAE, and Saudi Arabia.

What is a UPVC Mullion Connector?

A UPVC connector, also called a mullion connector, is a small part that connects the mullion — the vertical or horizontal bar inside a window or door — to the main frame or the opening part of the window or door.

This part is very important because it makes the window or door stronger, especially to handle pressure from strong winds.

Types of Mullion Connector

Mullion connectors come in two main types based on material: metal and plastic.

Metal brackets are stronger and more durable than plastic ones. They perform better under heavy loads, stretching, and temperature changes. Also, metal connectors are easier to install.

All mullion brackets produced by Winac are made of alloy steel. Alloy steel is based on iron and offers high resistance to pressure, corrosion, and harsh environmental conditions.

UPVC Window and Door Connector Specifications – Winac

The mullion connectors made by Winac are high-quality parts designed for strong and long-lasting performance. Key features include:

• • High Strength:
    Made from 2.5 mm thick alloy steel, which gives excellent strength and durability.

• Multiple Sizes Available:

  Winac manufactures brackets in a wide range of sizes, including 9 mm, 13 mm, 30 mm,   31 mm, 32 mm, 34 mm, 35 mm, 36 mm, and 38 mm. Additionally, single-hole bracket designs are available to accommodate specific installation requirements.

 

• Smooth Surface Finish:
  Each connector has a clean, even surface for a professional look and better performance.
• Glass Protection Design:
  Screw areas are shaped to prevent any pressure or damage to the glass.
• No Screw Interference:
  The design ensures that screws do not interfere with each other during installation.
• Extended Base:
  Long connector legs provide more contact with the UPVC profile, increasing stability.
• Perfect Fit:
  Designed to match 90-degree profiles with high precision.
• Gasket-Friendly: 

            Special design avoids any damage to the UPVC window gasket.

• Pre-drilled for Center Support Screw:
  A hole is included for mounting the middle mullion securely.
• Reinforced Sections:
  Ribs are added in high-stress areas to improve resistance against pressure.
• Hinge Mounting Ready:
  Male connectors include positioning features that make hinge installation easier.
• High-Quality Coating:
  The surface is resistant to UV rays, scratches, and wear—developed through extensive testing and expert craftsmanship.

How to install a mullion connector?

To install a mullion connector:

1. Align the mullion connector with the window or door frame where the mullion will connect.
2. Secure the connector using screws through the pre-drilled holes.
3. Make sure the screws do not touch the glass or gasket.
4. Check that the connector fits tightly and the mullion is stable.
5. Test the window or door for smooth opening and closing.

Frequently Asked Questions (FAQ)

• What materials are mullion connectors made of?

Mullion connectors are usually made from metal, like alloy steel, for strength and durability. Some cheaper versions use plastic, but metal is recommended for better performance.

• Can I replace a damaged mullion connector?

Yes, mullion connectors are replaceable parts. If a connector is damaged or worn out, it can be removed and replaced with a new one to maintain the window or door’s strength.

• Why is the mullion connector important?

The mullion connector joins the dividing bars (mullions) to the main frame, making the entire window or door stronger and able to resist wind pressure and other forces.

• How do I know which size mullion connector to buy?

The size depends on your window or door frame’s specifications. Check the profile size and ask the supplier or manufacturer for the correct size to ensure a perfect fit.

• Are UPVC mullion connectors suitable for high-wind areas?

Yes, high-quality metal mullion connectors—like those made from alloy steel—are designed to provide extra strength and stability, making them ideal for buildings in areas with strong winds or extreme weather conditions.

 

Conclusion

Mullion connectors are an important part of keeping UPVC windows and doors strong and stable. That’s why it’s important to choose a connector that is high-quality and built to last. A strong, well-made bracket will help your doors and windows stay secure, work better, and last longer.

For a free consultation before purchase and to receive pricing for UPVC window and door hardware, please contact our export department at Winac.