Tjernlund
0 ratings
Tjernlund BD-4 Spring Return Backdraft Damper for 4 Ducts
genuine image
Tjernlund BD-4 Spring Return Backdraft Damper for 4 Ducts
Galvanized steel, spring loaded dampers prevent back drafts with a tight seal and easy installation.
Tjernlund BD-4 Spring Return Backdraft Damper for 4" Ducts
Item #: 5539175

Tjernlund BD-4 Spring Return Backdraft Damper for 4" Ducts

Item #: 5539175

IMP 12

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Monday, July 06
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Galvanized steel, spring loaded dampers prevent back drafts with a tight seal and easy installation.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Automatic Operation
The BD-4 features a spring return mechanism that automatically seals the duct when not in use, preventing backdrafts and optimizing airflow efficiency in residential and commercial spaces.
Compact Design
Designed for 4-inch ducts, the BD-4's slim profile allows for easy installation in tight spaces, making it a versatile solution for various HVAC applications without compromising performance.
Durable Construction
Crafted from high-quality materials, the BD-4 ensures long-lasting durability and reliable operation, providing excellent value and peace of mind over time compared to competitors in the market.

Product Details

Shop for Tjernlund BD-4 Spring Return Backdraft Damper at Ubuy Isle of Man. Galvanized steel collar, aluminum damper blades. Get positive closure and interior gasket. Global delivery.
Item Weight1 lbs (450 grams)

Who Should Buy?

Suitable For
  • Homeowners

    Ideal for homeowners needing to prevent backdrafts and ensure proper ventilation in their HVAC systems.

  • HVAC Technicians

    Excellent for HVAC professionals installing systems to enhance airflow efficiency and meet code requirements.

  • Energy Savers

    Suitable for those aiming to reduce energy loss by preventing unwanted airflow when systems are not in use.

Not Suitable For
  • Large Duct Systems

    Not suitable for larger duct systems as it is specifically designed for 4-inch diameter ducts only.

  • Outdoors Installation

    This product is intended for indoor use and may not withstand outdoor conditions or elements.

  • High Pressure Systems

    Ineffective for high-pressure ventilation systems that require specialized dampers to handle increased airflow.

Product Description

Tjernlund BD-4 Spring Return Backdraft Damper for 4" Ducts

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What sizes are available for the backdraft damper?

    Answer: The backdraft damper comes in sizes ranging from 4in to 16in.
  • Question: What material is used for the damper blades?

    Answer: The damper blades are made of lightweight aluminum.
  • Question: Is installation difficult?

    Answer: No, the backdraft damper is designed for easy installation.

Tjernlund Ducting Editorial Review

The Tjernlund BD-4 Spring Return Backdraft Damper has garnered a mix of enthusiastic and critical feedback from customers, primarily revolving around its Construction quality and functionality versus expected air flow capabilities. Users commend the build quality, highlighting its solid Construction with a durable double-flanged rubber gasket, which enhances its effectiveness when correctly placed in systems with sufficient air flow. Many customers have noted that the damper fits securely onto standard 4-inch ducting, a feature that contributes to its appeal for various applications, including dust collection systems. However, the overarching concern among users pertains to the strength of the springs. Multiple reviewers have reported that the springs are excessively robust, making the damper challenging to activate in specific installations, particularly where air flow is weak. Customers installing it in horizontal positions, or with low-capacity fans, found the spring's resistance problematic, requiring modifications such as removing springs, which could compromise effectiveness. This, coupled with some reports of missing interior gaskets and manufacturing inConsistencies, raises questions about the overall reliability in preventing backdrafts under less-than-ideal conditions. In summary, while the Tjernlund BD-4 is seen as a high-quality, heavy-duty product suited for robust air flow scenarios, its performance may falter with lower-capacity systems unless modifications are made. **

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Pros

  • Solid Construction quality with durable materials
  • Good fit for standard 4-inch ducting
  • Effective at stopping backdrafts when installed correctly

Cons

  • Springs are too strong for some applications, complicating use

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

IMP 12

Order now and get it around Monday, July 06

QTY:

Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Constructed with galvanized steel for durability.
  • Features lightweight aluminum damper blades for efficient operation.
  • Spring-loaded design ensures positive closure against interior gaskets.
  • Available in a variety of sizes from 4in to 16in.
  • Usable as a replacement part for duct booster fans.
  • Easy installation for quick setup.