Commercial Stainless Steel Waste Drain Valve for Kitchen Sink
Waste Drain Valve, Twist Handle, 3-1/2" x 2" & 1-1/2" Adapter (Replaces B-3912 & B-3916)
Waste Drain Valve is an essential plumbing component designed for efficient drainage and water flow control in commercial kitchens, sinks, wash stations, food preparation areas, and industrial applications. Manufactured using durable stainless steel or brass construction, these valves provide long-lasting performance, corrosion resistance, and leak-proof operation.

Technical Data Sheet
| Spec Drawings/Parts Explosion | Submittal Drawing | Eauip Faucet & Pre Rinse Unit Installation |
Technical Details of Waste Drain Valve:
| Model: | B-3950 |
| Feature: | with NPT adapter |
| Material: | Brass Construction |
| Opening: | 3 1/2 in Sink Hole (88.9 mm) |
| Waste Drain Flow Rate: | 8" Centers (203 mm) |
| Cartridge-Spindle: | Waste Drain Flow Rate: 17 GPM (64.35 L/min) |
| Handle: | Twist |
| Temperature Max: | 180 F (82.22℃) |
| Temperature Min: | Hose and Spring |
| Inlet: |
Application:Commercial Kitchen, Restaurants, Pub & Bar, Canteen, Food Courts, Cafeteria etc.
Waste drain valves are widely used in hotels, restaurants, cafés, hospitals, catering kitchens, and food processing units for smooth wastewater disposal and hygienic operations. Their easy open-close mechanism ensures quick drainage while maintaining reliable sealing performance.
Waste Drain Valve of Key Features:
Features & Benefits:
- Heavy-duty stainless steel construction for long-lasting durability
- Corrosion-resistant finish suitable for commercial kitchen environments
- Leak-proof drainage performance for reliable operation
- Smooth water flow for efficient waste disposal
- Easy installation and maintenance
- Suitable for commercial kitchen sinks and wash stations
- Strong sealing mechanism to prevent water leakage
- Ideal for hotels, restaurants, cafés, and food preparation areas
- Hygienic design for professional food service applications
- Compatible with various commercial sink systems
- Designed for heavy-duty daily commercial usage
- Durable and easy-to-clean surface finish
Because this item is not stocked in our warehouse, processing, transit times and stock availability will vary. If you need your items by a certain date, please contact us prior to placing your order. Expedited shipping availability may vary. We cannot guarantee that this item can be cancelled off of the order or returned once it is placed.
Note: Specifications are subject to change without prior notice due to continuous product development and images. All pictures shown are for illustration purpose only. Actual product may vary due to product enhancement.



