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Watts B2-KDM Iron Dome and Cage for Roof Drains - Domes & Cages for Roof Drains
WattsDomes & Cages for Roof Drains

Watts B2-KDM Iron Dome and Cage for Roof Drains

The WATTS Dome Strainer (MPN B2-KDM) is an iron dome and cage for roof drains, featuring an 11 1/2 in overall diameter, 7 in overall height, and 12 1/4 in overall width. It has a clamp connection type and an…

SKU 3G-OTH-425983

Also listed as: B2KDM · B2 KDM

Brand
Watts
Item
B2-KDM Iron Dome and Cage for Roof Drains
Category
Domes & Cages for Roof Drains
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
B2-KDM
Type
Iron, Unfinished
Material
Iron
Finish
Unfinished
Overall Ht
7 in
Overall Wd
12 1/4 in
Connection Type
Clamp

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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Dome Strainer (MPN B2-KDM) is an iron dome and cage for roof drains, featuring an 11 1/2 in overall diameter, 7 in overall height, and 12 1/4 in overall width. It has a clamp connection type and an unfinished finish.

Frequently Asked Questions

What is the WATTS Dome Strainer used for?

The WATTS Dome Strainer (MPN B2-KDM) is used as a dome and cage for roof drains. It filters debris from rainwater runoff, preventing clogging in commercial and industrial drainage systems. Its iron construction and clamp connection make it suitable for heavy-duty roofing applications.

What are the specifications of the WATTS Dome Strainer?

The WATTS Dome Strainer has an 11 1/2 in overall diameter, 7 in overall height, and 12 1/4 in overall width. It is made of iron with an unfinished finish and features a clamp connection type. The manufacturer part number is B2-KDM.

Where to buy the WATTS Dome Strainer worldwide?

You can source the WATTS Dome Strainer (B2-KDM) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install the WATTS Dome Strainer?

Install the WATTS Dome Strainer by securing the clamp connection to the roof drain body. Ensure the dome sits evenly over the drain opening to allow proper water flow. Follow standard plumbing practices for roof drain assembly and verify the strainer is firmly attached.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts domes & cages for roof drains. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Cast iron dome strainer for roof drain systems. Prevents debris entry while allowing water flow. Drop-in connection type with unfinished finish. Overall height 4 3/8 in. Suitable for commercial and industrial roofing applications
ZURN
Cast iron dome strainer for roof drain systems. Prevents debris entry while allowing water flow. Drop-in connection type with unfinished finish. Overall height 4 3/8 in. Suitable for commercial and industrial roofing applications
Cast iron dome and cage for roof drain assemblies. Unfinished finish with drop-in connection. Overall height 4-1/8 in. Used to filter debris and prevent clogging in roof drainage systems
ZURN
Cast iron dome and cage for roof drain assemblies. Unfinished finish with drop-in connection. Overall height 4-1/8 in. Used to filter debris and prevent clogging in roof drainage systems
Cast iron dome and cage for roof drains, unfinished finish, with a drop-in connection type. Overall height 4-1/4 inches. Used to filter debris and allow water flow into roof drainage systems
ZURN
Cast iron dome and cage for roof drains, unfinished finish, with a drop-in connection type. Overall height 4-1/4 inches. Used to filter debris and allow water flow into roof drainage systems
This cast iron dome strainer is designed for use with roof drains to prevent debris entry while allowing water flow. It features a drop-in connection type and an unfinished finish. Typical applications include commercial and industrial roofing systems where protection of drain inlets is required
ZURN
This cast iron dome strainer is designed for use with roof drains to prevent debris entry while allowing water flow. It features a drop-in connection type and an unfinished finish. Typical applications include commercial and industrial roofing systems where protection of drain inlets is required
Plastic dome and cage assembly for roof drains. Designed to filter debris and prevent clogging in drainage systems on flat or low-slope roofs. Features a drop-in connection type with an unfinished finish. Overall height 4-1/2 inches
ZURN
Plastic dome and cage assembly for roof drains. Designed to filter debris and prevent clogging in drainage systems on flat or low-slope roofs. Features a drop-in connection type with an unfinished finish. Overall height 4-1/2 inches
This plastic dome and cage assembly is designed for use with roof drains. It filters debris to prevent clogging in drainage systems. The component has a 7 in overall height and uses a clamp connection type. The unfinished finish allows for field painting if desired
ZURN
This plastic dome and cage assembly is designed for use with roof drains. It filters debris to prevent clogging in drainage systems. The component has a 7 in overall height and uses a clamp connection type. The unfinished finish allows for field painting if desired

More from Watts

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This plastic dome and cage assembly is designed for use with roof drains to prevent debris from entering the drainage system while allowing water to flow freely. It features a clamp connection type and measures 12 1/4 inches in overall diameter and 7 inches in overall height. The unfinished finish suits various installation environments
Watts
This plastic dome and cage assembly is designed for use with roof drains to prevent debris from entering the drainage system while allowing water to flow freely. It features a clamp connection type and measures 12 1/4 inches in overall diameter and 7 inches in overall height. The unfinished finish suits various installation environments