mini-ball™ Valves

Instructions for 521-23-30

Turn off water supply. Install product. Turn on water supply, check for leaks. dahl assumes no responsibility for failure due to improper installation. Abide by local plumbing codes. Do not expose to corrosive agents.

MALE SOLDER: Do not dismantle valve – solder in open position. Clean mating part and valve end with emery cloth & apply flux to both. Valve must be bottomed in mating part. DO NOT re-position valve after soldering. Clean with water and dry. Let cool before operating.

COMPRESSION ON COPPER PIPE: Do not use pipe dope or PTFE tape. Pipe must be clean, de-burred, round, & cut square. Slide nut, then ring, then valve onto pipe. Tighten firmly with small wrench. DO NOT OVER-TIGHTEN. Compression on plastic tube: Follow tube manufacturer's instructions; Special ring, nut, or insert may be required.

Features and Benefits

In-Line Stop with Drain Screw and O-ring seal.

Hundreds of models available.

Every valve is tested before leaving our factory.

They may build them with something else, but they fix them with these.