Products




Flare Nuts

Flare Nuts

Applications

Brass flare fittings are designed for higher pressure applications. And they are commonly used for refrigeration, air conditioning, gasoline, grease, oil, air lines, and natural gas. We can offer brass flare fittings including standard 45° and inverted 45°.

Brass flare fittings are recommended for use with copper tubing, brass tubing, aluminum tubing which can be flared. Polybutylene or soft plastic tubing is not recommended.


Specifications

Temperature: -65°F to 250°F

Working Pressure:

copper tube OD

copper tube wall thickness

brass flare fitting working pressure

psi

1/4”

0.030”

1400

3/8”

0.032”

900

1/2”

0.032”

700

5/8”

0.035”

640

3/4”

0.035”

550

7/8”

0.045”

450

The above is based on 70°F with copper tube

Temperature and type of tubing must be considered for proper fitting selection.


Installation Instruction

Cut the copper tube square and put nut onto the copper tube. Flare copper tubing with 45° flaring tool and hand tighten nut over flare and onto fitting body. Then tighten it with wrench for positive metal-to-metal seal. Do not over tighten.


Specifications

Model

Size

ZR-NT04

1/4”

ZR-NT06

3/8”

ZR-NT08

1/2”

ZR-NT10

5/8”

ZR-NT12

3/4”

ZR-NT14

7/8”


 
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