How do I ensure a leak-proof installation in a threaded port

What does the blue sleeve on the 49L86 indicate

the Conbraco 13-211-B15 is specifically engineered and certified for low-pressure steam service only

The adjustable port opening allows for "fast venting" settings

it is rated for AC voltage and can be used in 120V setups provided the amperage does not exceed the unit’s maximum rating

Maxitrol R600S-1 Regulator Els PW 17895 How do I ensure aThe Maxitrol R600S 1 is a high performance gas pressure regulator engineered for precision in both main burner and pilot load applications. Featuring a 1" NPT connection, this appliance regulator utilizes a double diaphragm balanced valve design to maintain a rock steady outlet pressure, even when subjected to widely varying inlet pressures. Its rugged aluminum die cast housing and corrosion resistant internal components make it a field proven choice