Tjernlund BD-4 Spring-Return Backdraft Damper for 4 in Round Duct Systems | Spring-return damper fits 4 in round duct to reduce reverse airflow; verify orientation, clearance and installation needs.
Galvanized steel, spring loaded dampers prevent back drafts with a tight seal and easy installation.
Tjernlund BD-4 Spring-Return Backdraft Damper for 4 in Round Duct Systems | Spring-return damper fits 4 in round duct to reduce reverse airflow; verify orientation, clearance and installation needs.
منتج #: 5539175

Tjernlund BD-4 Spring-Return Backdraft Damper for 4 in Round Duct Systems | Spring-return damper fits 4 in round duct to reduce reverse airflow;

منتج #: 5539175

EGP 815

تفاصيل السعر

باستثناء رسوم الشحن والجمارك ( سيتم احتساب رسوم الشحن والجمارك عند إتمام الشراء )

*سيتم استيراد جميع العناصر من أمريكا

متوفر فى المخزون
أمريكا مستورد من متجر USA
اطلب الآن واحصل عليه حول Sunday, سبتمبر 13
أفضل شركائنا اللوجستيين
  • fedex
  • dhl
Galvanized steel, spring loaded dampers prevent back drafts with a tight seal and easy installation.
كفالة يو كير:
لا شيء
اختر الباقة
fast shipping

شحن
سريع

free return

استرجاع
مجاني*

تغليف آمن

تغليف آمن

منتجات أصلية %100

منتجات أصلية %100

pci-dss

الامتثال لمعيار PCI DSS

iso certified

حاصل على شهادة ISO 27001


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

مايفيد

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.

تفاصيل المنتج

Shop for Tjernlund BD-4 Spring Return Backdraft Damper at Ubuy مصر. Galvanized steel collar, aluminum damper blades. Get positive closure and interior gasket. Global delivery.
Brand NameTjernlund
Model NumberBD-4
Manufacturer Part NumberBD-4
Number of Packs1
Global Trade Identification Number00080956437006
Number of Items1
UPC080956437006
Unit Count1 Count
Included ComponentsDamper
ManufacturerTjernlund
Auto Part PositionRear
Compatible with Vehicle TypeTruck
Automotive Fit TypeUniversal Fit
Material TypeAluminum, Rubber
Style NameModern
Exterior FinishZinc
BrandTjernlund
StyleModern
Vehicle Service TypeTruck
Item Weight1.1 lbs (500 grams)

من يجب أن يشتري؟

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.

وصف المنتج

Tjernlund BD-4 Spring-Return Backdraft Damper for 4 in Round Duct Systems | Spring-return damper fits 4 in round duct to reduce reverse airflow; verify orientation, clearance and installation needs.

هل لديك أي استفسار؟ تحدث معنا

أسئلة العملاء & الإجابات

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

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

    إجابه: The damper blades are made of lightweight aluminum.
  • سؤال: Is installation difficult?

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

Tjernlund Ducting BD-4 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. **

مراجعات العملاء وتقييماتهم

1 تقييمات العملاء
  • 5 نجمة
    100%
  • 4 نجمة
    0%
  • 3 نجمة
    0%
  • 2 نجمة
    0%
  • 1 نجمة
    0%

أضف تقييم لهذا المنتج

شارك أفكارك مع عملاء آخرين

إيجابيات

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

سلبيات

  • Springs are too strong for some applications, complicating use

منصة موثوقة وثقة كاملة للمشتري

MA
Mohammad
مشتري موثّق

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · عبر Trustpilot
CK
Chitra
مشتري موثّق

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · عبر Trustpilot
K
kund
مشتري موثّق

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · عبر Trustpilot
OO
Onesi
مشتري موثّق

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · عبر Trustpilot
SJ
SAO JOHN
مشتري موثّق

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · عبر Trustpilot
الخروج الآمن شحن عالمي إسترجاع سهل منتجات أصلية

تاريخ سعر المنتج

معلومات مهمة

  • القيود: بالنسبة للمنتجات التي يتم شحنها دولياً، يُرجى ملاحظة أن أي ضمان من الشركة المصنعة قد لا يكون صالحاً؛ قد لا تتوفر خيارات خدمة الشركة المصنعة؛ قد لا تكون أدلة المنتج والتعليمات وتحذيرات السلامة مكتوبة بلغة بلد المقصد؛ قد لا يتم تصميم المنتجات (والمواد المصاحبة لها) وفقاً لمعايير بلد الوجهة والمواصفات ومتطلبات الملصقات؛ وقد لا تتوافق المنتجات مع الجهد الكهربي المستخدم في بلد الوجهة والمعايير الكهربائية الأخرى (تتطلب استخدام محوّل كهربي أو جهاز تحويل إذا كان ذلك مناسباً). المستلم مسؤول عن ضمان إمكانية استيراد المنتج بشكل قانوني إلى بلد الوجهة. عند الطلب من يوباي أو الشركات التابعة لها، يكون المستلم هو المستورد المسجل ويجب أن يلتزم بجميع القوانين واللوائح الخاصة ببلد الوجهة.
  • ليست كل المنتجات المدرجة على يوباي معروضة للبيع، لأن يوباي هو محرك بحث عالمي. المنتجات تخضع للوائح التصدير / التجارة.