We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts BV-1003 Backwater Valve - Drain Air Vents & Valves
WattsDrain Air Vents & Valves

Watts BV-1003 Backwater Valve

The WATTS Backwater Valve (MPN BV-1003) is a drain air vent and valve product with a black finish and slip connection type. It has a 2 7/8 in overall diameter and a 2 in overall height, constructed from stainless steel.

SKU 3G-OTH-426924

Also listed as: BV1003 · BV 1003

Brand
Watts
Item
BV-1003 Backwater Valve
Category
Drain Air Vents & Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

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
BV-1003
Type
Stainless Steel, Slip
Color
Black
Overall Ht
2 in
Overall Dia
2 7/8 in
Connection Type
Slip

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The WATTS Backwater Valve (MPN BV-1003) is a drain air vent and valve product with a black finish and slip connection type. It has a 2 7/8 in overall diameter and a 2 in overall height, constructed from stainless steel.

Frequently Asked Questions

What is the WATTS Backwater Valve used for?

The WATTS Backwater Valve (BV-1003) prevents sewage backflow into buildings during municipal system overloads. It is installed in drainage lines to protect basements and lower-level plumbing from flooding. Common applications include residential, commercial, and industrial wastewater systems where backflow prevention is critical.

What are the specifications of the WATTS Backwater Valve BV-1003?

The WATTS Backwater Valve BV-1003 has a 2 7/8 in overall diameter and 2 in overall height. It features a slip connection type, a black finish, and is constructed from stainless steel. The manufacturer part number is BV-1003. It is designed for drain air vent and valve applications.

Where to buy the WATTS Backwater Valve worldwide?

3G Electric supplies the WATTS Backwater Valve BV-1003 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this product to any country.

How to install a WATTS Backwater Valve?

Install the WATTS Backwater Valve in the main drainage line below the lowest fixture, ensuring the flow arrow points downstream. Use slip connections with appropriate solvent cement for PVC pipe. Test the valve by simulating backflow to confirm the flap closes fully. Follow local plumbing codes for proper venting and access.

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 drain air vents & valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
This vertical-discharge air vent automatically releases trapped air from water systems, such as hydronic heating loops or domestic water lines. It features a brass body with a 1/8 in MNPT top port and a bottom connection, rated for a maximum pressure of 150 psi and a maximum temperature of 240°F
Watts
This vertical-discharge air vent automatically releases trapped air from water systems, such as hydronic heating loops or domestic water lines. It features a brass body with a 1/8 in MNPT top port and a bottom connection, rated for a maximum pressure of 150 psi and a maximum temperature of 240°F
Brass body air vent with 1/8 in MNPT top port, designed for water systems. Automatically releases trapped air from hydronic heating loops, radiators, and hot water lines. Rated for 150 psi maximum pressure and 240°F maximum temperature
Watts
Brass body air vent with 1/8 in MNPT top port, designed for water systems. Automatically releases trapped air from hydronic heating loops, radiators, and hot water lines. Rated for 150 psi maximum pressure and 240°F maximum temperature
Digital mixing valve with 2 in press outlet and 1 1/2 in press inlet, constructed from brass. Used in hydronic systems to blend hot and cold water for precise temperature control in commercial and industrial applications
Watts
Digital mixing valve with 2 in press outlet and 1 1/2 in press inlet, constructed from brass. Used in hydronic systems to blend hot and cold water for precise temperature control in commercial and industrial applications
Double check backflow preventer with flange x flange connections and an OSY gate valve shut-off. Pipe size 8 in, overall length 49.75 in. Suitable for non-hazardous backpressure or backsiphonage conditions in water lines
Watts
Double check backflow preventer with flange x flange connections and an OSY gate valve shut-off. Pipe size 8 in, overall length 49.75 in. Suitable for non-hazardous backpressure or backsiphonage conditions in water lines
Digital mixing valve with 2 1/2 inch press x press outlet connections, constructed of brass. Used in hydronic systems to blend hot and cold water for precise temperature control in applications such as radiant heating and domestic hot water recirculation
Watts
Digital mixing valve with 2 1/2 inch press x press outlet connections, constructed of brass. Used in hydronic systems to blend hot and cold water for precise temperature control in applications such as radiant heating and domestic hot water recirculation
This horizontal-discharge air vent automatically releases trapped air from water systems to prevent air locks and reduce noise. It features a brass body with a 1/8 in MNPT side port and bottom connection, rated for water service up to 125 psi maximum pressure and 240°F maximum temperature. Suitable for installation on hydronic heating loops, radiators, and water pipelines
Watts
This horizontal-discharge air vent automatically releases trapped air from water systems to prevent air locks and reduce noise. It features a brass body with a 1/8 in MNPT side port and bottom connection, rated for water service up to 125 psi maximum pressure and 240°F maximum temperature. Suitable for installation on hydronic heating loops, radiators, and water pipelines

More from Watts

View all Watts parts →
Backwater valve constructed of stainless steel with a black finish. Features a slip connection type. Overall diameter of 3-7/8 inches and overall height of 2 inches. Used in drainage systems to prevent sewage backflow into buildings during municipal system overloads
Watts
Backwater valve constructed of stainless steel with a black finish. Features a slip connection type. Overall diameter of 3-7/8 inches and overall height of 2 inches. Used in drainage systems to prevent sewage backflow into buildings during municipal system overloads
This backwater valve from WATTS is constructed of stainless steel with a black finish. It features a slip connection type, a 1-7/8 in overall diameter, and a 2 in overall height. Designed for drain line installation, it automatically closes to prevent sewage backflow during heavy rain or system overloads, protecting lower-level plumbing from flooding and contamination
Watts
This backwater valve from WATTS is constructed of stainless steel with a black finish. It features a slip connection type, a 1-7/8 in overall diameter, and a 2 in overall height. Designed for drain line installation, it automatically closes to prevent sewage backflow during heavy rain or system overloads, protecting lower-level plumbing from flooding and contamination