Copro Frequently Asked Questions


Q: What material are COPRO® fittings made of?

A: The fittings are a forged brass (ASTM B-283), the gripping ring is made of 316 stainless steel, and the o-ring is EPDM pre-lubed with an NSF-61 approved lubricant.

Joining Tubing

Q: Do I need to prep the ends differently than a solder joint?

A: As with sweat copper fittings, the tube must be chamfered, deburred and reamed. COPRO® recommends the Quick Fitting® , Inc. Prep Tool to chamfer, deburr and ream tube ends. These steps are essential to ensure the proper connection of your COPRO® push-to-connect system. Also, be sure to draw an inspector’s mark on the tube to let the installer know when the tube has been inserted far enough.

Q: What types of tubing can COPRO® be used on?

A: COPRO® is ideal for use with copper and stainless steel. Consult factory for use with CPVC and PEX.

Installing, Testing and Flushing Your COPRO® System

Q: What have COPRO® fittings been tested to?

A: COPRO® fittings have been tested to 900 psi at 200 °F, giving it a safety factor of over 4 to 1. The burst pressure is over 1,500 psi.

Q: What support hanger spacing must I use with my COPRO® System?

A: Support is identical to a sweat system and should adhere to local codes. Always fully support heavy loads on your COPRO® System.

Q: How do I test my COPRO® System?

A: Pressure-test the same as you would with a copper sweat system. Normal testing at 1 ½ times is permitted even up to 300 psi.

Q: Do I need to lubricate the joint when installing?

A: No. Engineered seals come factory-lubricated with an NSF-61 approved lubricant.

Q: Do I still have to flush my system?

A: Yes, but the system will be cleaner and faster to flush since there is no solder or flux.

Q: Is testing of my COPRO® System the same as testing a copper system?

A: Yes, COPRO® is tested the same way as a sweat copper system.

Adapting Your COPRO® System to Other Systems

Q: Are valves and specialty items available for my COPRO® push-to-connect System?

A: Yes, please see our product catalog for more information.

Q: Can I use my own valves?

A: Yes, with two COPRO® male threaded connectors.

Q: Can my COPRO® System connect with existing threaded systems?.

A: Yes, with the use of a COPRO® male threaded connector

Q: Can I solder directly into a COPRO® push-to-connect fitting or valve?

A: No

COPRO® Standards and Approvals

Q: Is the COPRO® System NSF-61 approved?

A: Yes.

Q: What approvals does COPRO® have?

A: Manufactured by the world’s originator and largest producer of push-to-connect fittings, COPRO® is certified to NSF-61. Additional certifications include: British: BS EN 1294/BS 864 Part 2: Copper and copper alloys: Copper fittings, British: WRAS approval, Netherlands: NF-EN 1254-1, German: DVGW GW 8.

COPRO® Uses and Restrictions

Q: Are “pressure drops” and “friction loss” the same for a COPRO® System and a copper sweat system?

A: COPRO® fittings are full bore fittings offering superior flow characteristics. The pressure drops and friction loss are very similar to sweat copper fittings.

Q: Can I rotate my COPRO® push-to-connect fittings?

A: Yes, the fittings can be rotated 360 degrees while the system is not under pressure.

Q: Can my COPRO® System be installed on wet or dry tube?

A: Yes. COPRO® fittings install on wet or dry tube. However, you should always depressurize your system before installing COPRO® products.

COPRO® Temperature and Pressure Ratings

Q: What working temperature/pressure is the COPRO® System rated for?

A: 180 °F and 200 PSI