Watts BV-1004 Internal Backwater Valve 4 in
Prevents sewage backflow in floor drains with a stainless-steel spring-loaded float and neoprene seal, meeting ASME A 112.14.1 and UPC standards
- Product typeDrain Components
- Prevents sewage backflow with stainless steel spring closure
- Meets ASME A112.14.1, UPC and IPC standards
- Bronze compression plates and neoprene gasket ensure tight seal
- Includes mounting bolts for direct floor drain installation
- Durable stainless steel body resists corrosion in drainage systems
Watts BV-1004 Backwater Valve
The Watts BV-1004 is a new internal backwater valve designed for 4 inch pipe diameter floor drains. It features a round stainless steel body with bronze compression plates, a neoprene gasket, a sealing float and a stainless steel light tension closure spring. The unit includes mounting bolts and meets ASME A 112.14.1, UPC and IPC standards. It prevents reverse flow in drainage systems.
Suitable Installations and Limitations
This valve suits plumbers and contractors installing backflow prevention in compatible floor drains requiring a 4 inch connection. It is not for buyers who need a different pipe diameter, an external valve configuration or a valve without the specified stainless steel spring and bronze plate assembly. The included bolts fit the standard mounting pattern for this model.
Critical Sizing Specification
The decisive specification is the 4 inch pipe diameter designation for the drain connection. The overall diameter measures 3 7/8 inches to fit inside the pipe. Verify the existing drain pipe size and internal dimensions match this requirement before purchase to ensure proper seating and sealing.
How it compares
Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.
- Price $39.99
- Pricier than about 56% of the 4,240 comparable items (median $31.99).
Specifications
| Product | |
|---|---|
| Brand name | Watts |
| Model name | BV-1004 |
| Product type | Drain Components |
Questions about this item
What size floor drain opening does the BV-1004 backwater valve fit?
The valve has an overall diameter of 3 7/8 inches and is designed for a 4 inch pipe diameter, so it installs inside a standard 4 inch floor drain body.
Can the BV-1004 be used with existing cast iron or PVC drain piping?
Yes, the bronze compression plates and neoprene gasket create a seal against both cast iron and PVC pipe interiors without requiring special adapters.
How can I verify the BV-1004 is sealing properly after installation?
Pour water into the floor drain; the stainless steel float should rise and the light tension spring should close the gate, stopping backflow while allowing normal drainage.
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