Dahl 521-23l-30 Straight Stop Valve Press Compression

Product Description

The DAHL 521-23l-30 is a lead-free straight stop valve designed for potable water supply systems in residential and light commercial plumbing applications. It features a 1/2 inch ProPress inlet connection and a 1/4 inch OD compression outlet, making it a reliable shutoff point at fixtures and appliances. The body is constructed from rough brass, and the handle is nickel plated brass. This valve meets CSA, UPC, and NSF/ANSI 61-G standards, confirming its suitability for drinking water service. Licensed plumbers and journeymen installers are the primary trades working with this fitting.

This stop valve is suited for use at the supply stub-out where a 1/2 inch ProPress connection transitions to a 1/4 inch OD compression line. Common applications include under-sink fixture supply, ice maker lines, and similar low-flow potable water connections. The ProPress end eliminates the need for soldering at the inlet, which can reduce installation time in retrofit or new construction work. The compression outlet accepts standard 1/4 inch OD tubing for a tool-free, repeatable connection.

Key Features

• Lead-free construction meets NSF/ANSI 61-G requirements for potable water contact
• ProPress x compression end connections — no soldering required at the inlet
• Rough brass body for durability in concealed or rough-in installations
• Nickel plated brass handle for corrosion resistance and ease of operation
• Certified to CSA (Canada and US) and UPC standards
• Straight configuration for straightforward in-line shutoff installations

Compatibility

Designed as an OEM-style replacement or new-installation straight stop valve for 1/2 inch ProPress supply lines transitioning to 1/4 inch OD compression tubing in residential and light commercial potable water systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the IPC. Shut off the main water supply and relieve system pressure before installing or replacing this valve. The ProPress end requires a compatible press tool and jaw set rated for the pipe material and size in use. Verify that the 1/4 inch OD compression tubing is cut clean and square, and that the compression nut and ferrule are fully seated before pressurizing the line.

Technical Specifications

• Valve Type: Supply Stop Valve, Straight
• Nominal Size: 1/2 inch x 1/4 inch
• End Connection: ProPress x Compression
• Body Material: Rough Brass
• Handle Material: Nickel Plated Brass
• Lead-Free: Yes
• 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-30