Module 6.5

Why are unions important in a piping system?

• Unions permits to dismantle the circuit without having to cut a pipe.

• Union allows vent the system quickly.

Threaded piping is normally installed with at least one _________ in each circuit line. Having unions permits you to dismantle the circuit without having to cut a pipe.

• Union

•       Valves

__________ are paste or tape materials used to make threaded joints leak- proof.

• Sealants

• Solvent cement

What are sealants?

• a.       Paste or tape materials

• a.       Masking tape

1.       You use ________ tighten hexagonal components-particularly made from soft metal.

• a.       Paste or tape materials

• a.       Adjustable wrench

Pipe wrenches have ____ that bite or grip pipe to keep from sleeping.

• Teeth

• Handle

Why is a pipe wrench unsuitable for use on brass components?

• They have teeth that grip would damage “soft” brass.

• They have smooth jaws that damage the brass.

you must not use ________ on other applications, such as unions, valves, machined or hexagonal fittings, or brass components.

• Pipe wrenches

• Adjustable wrenches

____________ are specifically designed for use on threaded pipe pieces and fittings.

• Pipe wrenches

• Adjustable wrenches

While working with threaded piping, a considerable amount of work is performed using _______ because misuse of wrenches can damage the pipe and fittings.

• Heavy duty wrenches

• Box spanners