Buying Guide

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NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: [phone] • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: [phone]
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Press System — Frequently Asked Questions
What is the NIBCO product offering?
The NIBCO Press System features a full range of copper and copper alloy fittings, commercial valves, accessories and pressing tools,
jaws and chains for use with K, L and M copper water tube as well as 1/2", 3/4" and 1" annealed copper tubing.
What is the system temperature rating?
The NIBCO Press System is rated at 200 psiG over a temperature range of -20°F to 250°F.
What are the approved system applications?
Approved applications include residential and commercial potable, hot, chilled and process water for plumbing and HVAC systems.
The NIBCO Press System is designed for use with water glycol mixtures of ethylene or propylene glycol up to 50% at 200°F.
What was the testing protocol for the NIBCO Press System fittings and valves?
NIBCO Press System fittings and valves were subjected to a wide range of performance tests including dimensional verification,
thread end specification, hydrostatic burst strength, unrestrained pressure, static torque, bending, vacuum pressure, cyclic pres-
sure, vibration, thermo-cycling and dynamic torque. The testing protocol included testing to a 3X safety factor above the 200
psiG system rating.
NIBCO testing was witnessed and validated by the internationally recognized NSF.
Can other available pressing tools and jaws be used on the NIBCO Press System?
See our Approved Tool and Jaw Compatibility Matrix for a complete listing of approved tools and jaws.
Can a NIBCO Press System connection be re-crimped?
If for any reason the press cycle is interrupted, it is possible to re-crimp a NIBCO Press System connection. However, when
re-crimping the connection, the jaws must be properly aligned so that the crimp is performed in the same location as the original.
How long will the EPDM seal last?
Accelerated life tests show that the EPDM seals used with the NIBCO Press System fittings and valves have a life expectancy
of 50 years.
Are NIBCO Press System fittings available with solder or threaded by Press System connection?
NIBCO offers many Press System fitting combinations by soldered or threaded connection. Please note, always solder the standard
wrot connection first when possible. Prior to soldering, remove the press end EPDM o-ring, solder, allow the fitting to cool, insert
the EPDM O-ring, and then Press the connection.
Can a fitting be soldered close to a Press System connection?
NIBCO recommends soldering at least 12 inches away from the Press System connection. If this length is not possible, either solder
the joint prior to connecting the press fitting or wrap the connection with a cold wet cloth.
Is the NIBCO Press System approved for underground use?
In accordance with local plumbing codes, the NIBCO
Press System can be installed underground.
Is the NIBCO Press System compatible with standard disinfectant cleaning agents commonly utilized in a new water system?
Yes, the NIBCO Press System is typically compatible. For specific cleaning agent compatibility, contact NIBCO Technical Services at
the below noted number.
Revised 9/17/2019