Dahl 521-23l-31 Straight Stop Valve Press Compression

Product Description

The DAHL 521-23l-31 is a lead-free straight stop valve designed for residential and light commercial plumbing supply line connections. It features a 1/2 inch ProPress inlet and a 3/8 inch OD compression outlet, making it a press-and-connect option that eliminates open-flame soldering at the valve connection point. The body is rough brass, and the handle is nickel plated brass. This stop valve meets CSA, UPC, and NSF/ANSI 61-G standards, confirming it is compliant with lead-free potable water requirements. Licensed plumbers and plumbing contractors are the primary installers of this type of valve.

This straight stop valve is suited for under-sink supply line shutoff applications in residential bathrooms and kitchens, as well as light commercial settings. The ProPress end connection is compatible with press-fit tooling systems, allowing installation without soldering on the supply side. The 3/8 inch OD compression outlet accepts standard braided or corrugated supply lines. It is commonly installed at fixture shutoffs for lavatories, kitchen sinks, and similar fixtures where a straight-run configuration is appropriate.

Key Features

• Lead-free construction compliant with NSF/ANSI 61-G for potable water service
• 1/2 inch ProPress inlet allows press-fit installation without open-flame soldering
• 3/8 inch OD compression outlet accepts standard supply line fittings
• Rough brass body for durability in rough-in plumbing applications
• Nickel plated brass handle for corrosion resistance and a clean finish
• Meets CSA (Canada and US) and UPC standards

Compatibility

Designed as an OEM-style replacement or new-installation straight stop valve for 1/2 inch ProPress copper or compatible press-fit piping systems terminating to 3/8 inch OD compression supply lines in residential and light commercial plumbing.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the main water supply and depressurize the line before beginning work. The ProPress end requires a certified press-fit tool and the correct jaw size for 1/2 inch connections. Verify the compression nut is properly seated and hand-tightened before final torque with an appropriately sized wrench to avoid overtightening the compression fitting.

Technical Specifications

• Valve Type: Straight Stop
• Nominal Size: 1/2 inch x 3/8 inch
• End Connection: ProPress x Compression
• Body Material: Rough Brass
• Handle Material: Nickel Plated Brass
• Lead-Free: Yes
• Applicable Standards: CSA (Canada and US), UPC, NSF/ANSI 61-G
• Packaging Quantity: 144 per Master Carton

Standard Information

• Brand: DAHL
• Manufacturer Part Number: 521-23l-31