dahl 1/2″ Expansion Tank-Boiler Fill Dual Shut-Off Valve


$59.95

dahl 1/2″ Expansion Tank-Boiler Fill Dual Shut-Off Valve has a 1/2″ Dual (Male NPT or Female Copper Solder Union) x 1/2″ Female NPT Connection with Drain x 1/2″ Female Solder connection


dahl 1/2″ Expansion Tank-Boiler Fill Dual Shut-Off Valve has a 1/2″ Dual (Male NPT or Female Copper Solder Union) x 1/2″ Female NPT Connection with Drain x 1/2″ Female Solder connection

 quality. This is evident in the weight of their products. They are all backed by a lifetime warranty and are manufactured in Canada using only North American materials. Dahl pioneered the mini-ball™ valve and continue to evolve with the times.


Features

A unique Dual Shut-Off assembly for separately isolating both the Auto Fill Valve and Expansion Tank on open loop heating systems.

A drain feature is available on the shut-off for the expansion tank to relieve pressure before disconnecting, if necessary.

Incorporates two valves with union connections to the tee, and a Tee Fitting with a union connection to connect to a 1/2″ FIP automatic Air Vent.

Highly versatile and easy to install & maintain.


Specifications

Material Regular Brass
Pattern Straight with metering spindle
Finish Rough Brass
Inlet Pipe Type 1/2″ Male NPT or Female Solder
2nd Inlet Size 1/2″ Female Copper Solder
Outlet Size 1/2  Female NPT with Drain


Installation Instructions

Instructions for 121BAL-13-PRPX3

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.

FEMALE SOLDER: Do not dismantle valve – solder in open position. Clean pipe and valve socket with emery cloth, & apply flux to both. Pipe must be square and bottomed in socket. DO NOT re-position valve after soldering. Clean with water and dry. Let cool before operating.

NPT THREAD: Clean pipe threads and cover them with pipe dope or PTFE tape. Tighten firmly while gripping hex on end of valve. UNION: Do not use pipe dope or PTFE tape. Tighten firmly with wrench. DO NOT OVER-TIGHTEN.

Weight .56 kg

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