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Flare Connectors

Is a dielectric union a concern for a natural gas fitting?

I am installing a new natural gas water heater in my home. The existing gas line to the old heater is black pipe to rigid copper pipe to a short piece of flexible copper tubing terminated in a 1/2″ flared connector. Can 1/2 ‘ black pipe from the new water heater be connected directly to the copper flex tube or should there be a dielectric union separating the 2 disimilar metals? Would it be better to remove all the copper pipe and tubing and just install black pipe all the way to the water heater?

A dielectric union is not an acceptable gas fitting.

Me personally? I’d go black pipe all the way with a stainless flexible appliance connector (with shut off valve) at the gas valve.

G’luck!

PS (nothing wrong with the copper though)

~+~+~+~+~+~+

On edit: Don’t forget the drip leg.


1/2FLx1/2FPT Connector


1/2FLx1/2FPT Connector


$3.12


1/2″ Flare x 1/2″ Female Pipe Thread Brass Flare Connector Bulk. Quantity 5…

10 each: Anderson Male Connector (ABU1-6A)


10 each: Anderson Male Connector (ABU1-6A)


$17.14


Sold as one unit. (1 unit = 10 each.) Yellow brass. 3/8″ Flare x 1/8″ Male Pipe Connector. Can be assembled and re-assembled, resists mechanical pull out. Compatible with copper, brass, aluminum and steel hydraulic tubing. Used on low, medium and high pressure lines. -65 to +250 Deg. F. Bagged . Manufacturer number: ABU1-6A. SKU #: 4033049. Country of origin: (TBA). Distributed by Anderson Fit…

5 each: Ace Brass Gas Appliance Connector-Male (AU3GA-10E)


5 each: Ace Brass Gas Appliance Connector-Male (AU3GA-10E)


$21.79


Sold as one unit. (1 unit = 5 each.) Yellow brass. Ace carded. 15/16″ Flare x 3/4″ FPT . Manufacturer number: AU3GA-10E. SKU #: 4049938. Country of origin: (TBA). Distributed by Anderson Fittings….

Anderson Metals 14046-1008 5/8 x 1/2 Female Flare Adapters, Brass


Anderson Metals 14046-1008 5/8 x 1/2 Female Flare Adapters, Brass


$3.64


Anderson Metals 14046-1008 5/8″ x 1/2″ Female Flare Adapters, BrassAnderson Metals 14046-1008 5/8″ x 1/2″ Female Flare Adapters, Brass Features:;Flare x FIP;5/8″ x 1/2″;10 per bag…

Brass Flare Union, 3/8


Brass Flare Union, 3/8


$1.51


Two piece construction – nut and body. Use with copper, brass, aluminum, or steel tubing. -65 degrees F. to +250 degrees F. temperature range. Resists mechanical pullout. Easy to disassemble and can be re-assembled many times with no effect on the seal.no flaring tool required. Primary uses fuel equipment, plumbing, gases refrigeration, and vacuum….

10 each: Anderson Swivel Flare Connector (ABUS4-4)


10 each: Anderson Swivel Flare Connector (ABUS4-4)


$34.49


Sold as one unit. (1 unit = 10 each.) Yellow brass. 1/4″ Flare x 1/4″ Flare. Can be assembled and re- assembled, resists mechanical pull out. Compatible with copper, brass aluminum and steel hydraulic tubing. Used on low, medium and high pressure lines. -65 to +250 Deg. F. Bagged . Manufacturer number: ABUS4-4. SKU #: 47210. Country of origin: (TBA). Distributed by Anderson Fittings….

IMPERIAL 90020 INVERTED FLARE MALE CONNECTOR 1/4X1/8


IMPERIAL 90020 INVERTED FLARE MALE CONNECTOR 1/4X1/8


$7.99


IMPERIAL SUPPLIES” CONNECTOR

Inverted Flare Tube Male Connector Fitting.
Inverted Flare Tube Fittings conform to ASA, ASME, SAE, and Mil. specifications.
This short-bodied fitting fits in tighter places than other styles of fittings.
Particularly well-suited for hydraulic brake systems, fuel equipment, and refrigeration applications.
Seats and threads are recessed and protected. Short nuts af…


IMPERIAL 90024 INVERTED FLARE MALE CONNECTOR 3/8X1/8X5/8-18


IMPERIAL 90024 INVERTED FLARE MALE CONNECTOR 3/8X1/8X5/8-18


$23.99


“IMPERIAL SUPPLIES” CONNECTOR

Inverted Flare Tube Male Connector Fitting.
Inverted Flare Tube Fittings conform to ASA, ASME, SAE, and Mil. specifications.
This short-bodied fitting fits in tighter places than other styles of fittings.
Particularly well-suited for hydraulic brake systems, fuel equipment, and refrigeration applications.
Seats and threads are recessed and protected. Short nuts a…


IMPERIAL 90026 INVERTED FLARE MALE CONNECTOR 1/2X3/8


IMPERIAL 90026 INVERTED FLARE MALE CONNECTOR 1/2X3/8


$31.99


“IMPERIAL SUPPLIES” CONNECTOR

Inverted Flare Tube Male Connector Fitting.
Inverted Flare Tube Fittings conform to ASA, ASME, SAE, and Mil. specifications.
This short-bodied fitting fits in tighter places than other styles of fittings.
Particularly well-suited for hydraulic brake systems, fuel equipment, and refrigeration applications.
Seats and threads are recessed and protected. Short nuts a…


4 x 5 Flared Flare Turbo Pipe Connector Cummins 250


4 x 5 Flared Flare Turbo Pipe Connector Cummins 250


$22.00


Aluminized Steel Flared Turbo Pipe Connector45 Degree Flare4″ O.D.5″ LengthCummins 250 Application…


Flare


Flare


$18.75


Flare

Colombia And Ecuador Nelles Map (nelles Maps)


Colombia And Ecuador Nelles Map (nelles Maps)


$46.95


Colombia And Ecuador Nelles Map (nelles Maps)

The Connectors


The Connectors


$17.21


The Connectors

No Flare Squares


No Flare Squares


$35


No Flare Squares

Totems Flare


Totems Flare


$16.99


Totems Flare

Nelles New Zealand Travel Map


Nelles New Zealand Travel Map


$6.37


Nelles New Zealand Travel Map

Senritsu No Flare


Senritsu No Flare


$41.99


Senritsu No Flare

Quick Connectors


Quick Connectors


$28.21


Quick Connectors

Reusable Connectors


Reusable Connectors


$5.46


Reusable Connectors

Power Connectors


Power Connectors


$27.76


Power Connectors

Dinse Connectors


Dinse Connectors


$41.87


Dinse Connectors

Terminal Connectors


Terminal Connectors


$16.64


Terminal Connectors

Cable Connectors


Cable Connectors


$4.82


Cable Connectors


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