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OBDi4020 Opposed blade damper 400×200 – Wall Grilles – PYOBD4020
Image is for illustration only. Please go by the model number (SKU: PYOBD4020).
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$154.98$246.98 (-37%)
Price Match*
Price Match*
Discount per Quantity
| Quantity | Discount | Price |
|---|
| 1 - 4 | 0% | $154.98 | |
| 5 - 9 | 8% | $142.58 | |
| 10 - 19 | 12% | $136.38 | |
| 20 + | 18% | $127.08 |
⚠️ Important Compatibility Notice
Please double-check the required specifications with your qualified technician or installer prior to ordering. Due to the technical nature of this product, incorrect orders cannot be exchanged, replaced, or refunded. Thank you for your understanding.
Professional HVAC Component: OBDi4020 Opposed blade damper 400×200
You are viewing the OBDi4020 Opposed blade damper 400×200 (SKU: PYOBD4020). A professional-grade component from the Wall Grilles series, engineered for New Zealand’s residential and commercial ventilation systems. Sourced directly from our trade supply chain for NZ Depot.
⚠️
Technical Verification Required
Ventilation components require precise sizing. Please verify that this PYOBD4020 model matches your system’s diameter and connection type (e.g., Big End vs Small End) before ordering.
Key Specs:
Category: Wall Grilles
Type: Opposed blade damper
Product Specifications
The PYOBD4020 Opposed Blade Damper is designed for precise air volume control in supply and exhaust air systems. The opposed blade mechanism provides even air distribution across the grille or diffuser face, making it ideal for balancing and fine airflow adjustment. Constructed from lightweight aluminium, it combines durability, ease of operation, and compatibility with a wide range of diffusers and duct systems.
Application
Opposed Blade Dampers are installed directly behind supply or exhaust grilles to achieve accurate airflow control. They are suitable for fine trimming of air quantities (up to 37 Pa) where quiet operation is required. The cog system ensures the blades turn in sequence for smooth, even adjustment. Dampers can be positioned anywhere between fully open and fully closed and are supplied with side plates as standard for mounting to diffusers or sheet metal ducts.
Features / Benefits
- Opposed blade design ensures even air distribution across diffuser face
- Provides precise airflow adjustment for supply or exhaust systems
- Cog system allows blades to turn in sequence
- Adjustable from fully open to fully closed
- Supplied with side plates for diffuser or duct mounting
- Lightweight aluminium construction for strength and ease of installation
- Custom sizes available on request
- Maximum width 600 mm per section
- Standard finish: Matt Black
Products specifications
| Attribute name | Attribute value |
|---|---|
| Grille Specifications | |
| Installation location | Wall |
| Application | Commercial & Domestic |
| Shape | Rectangle |
| Material | Aluminium |
| Colour | Black |
| Finish | Powder Coated |
| Face Size (mm) | 400 x 200 |
| Depth (mm) | 81 |
Professional HVAC Supply: OBDi4020 Opposed blade damper 400×200
You are viewing the OBDi4020 Opposed blade damper 400×200 (SKU: PYOBD4020). A critical component within our Wall Grilles range, designed specifically for New Zealand’s residential and commercial ventilation requirements. Sourced directly from our trade supply chain for NZ Depot.
⚠️
Important: Measurement Verification
HVAC components require precise sizing. Please confirm this PYOBD4020 model matches your engineer’s specifications before ordering.
Technical Specifications & Features
The PYOBD4020 Opposed Blade Damper is designed for precise air volume control in supply and exhaust air systems. The opposed blade mechanism provides even air distribution across the grille or diffuser face, making it ideal for balancing and fine airflow adjustment. Constructed from lightweight aluminium, it combines durability, ease of operation, and compatibility with a wide range of diffusers and duct systems.
Application
Opposed Blade Dampers are installed directly behind supply or exhaust grilles to achieve accurate airflow control. They are suitable for fine trimming of air quantities (up to 37 Pa) where quiet operation is required. The cog system ensures the blades turn in sequence for smooth, even adjustment. Dampers can be positioned anywhere between fully open and fully closed and are supplied with side plates as standard for mounting to diffusers or sheet metal ducts.
Features / Benefits
- Opposed blade design ensures even air distribution across diffuser face
- Provides precise airflow adjustment for supply or exhaust systems
- Cog system allows blades to turn in sequence
- Adjustable from fully open to fully closed
- Supplied with side plates for diffuser or duct mounting
- Lightweight aluminium construction for strength and ease of installation
- Custom sizes available on request
- Maximum width 600 mm per section
- Standard finish: Matt Black
Products specifications
| Attribute name | Attribute value |
|---|---|
| Grille Specifications | |
| Installation location | Wall |
| Application | Commercial & Domestic |
| Shape | Rectangle |
| Material | Aluminium |
| Colour | Black |
| Finish | Powder Coated |
| Face Size (mm) | 400 x 200 |
| Depth (mm) | 81 |
About the Opposed blade damper Series
Used in supply and exhaust air systems to achieve volume control.
Cog system allows blades to turn in sequence
Alternative sizes made to order
Maximum width 600mm per section
The opposed blade action allows even distribution over entire face of the diffuser
Damper can be set in any position from fully open to fully closed
Supplied with side plates fitted as standard, for fixing to neck of diffuser or sheetmetal duct
Additional information
| MPN | |
|---|---|
| Application | |
| Material | |
| Shape | |
| Colour | |
| Finish |
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Connor –
Very comfortable
Emilia –
Very dependable item
Marian –
Superb service
Alexander –
Totally worth it
Joy –
Very excellent product quality
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Highly worth every penny buy
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Really good experience
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Very dependable item
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Best purchase
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Really good quality service