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Viega LLC

585 Interlocken Blvd.

Broomfield, CO 80021

Phone (800) 976-9819

www.viega.us

Product Instructions

Viega PureFlow

®

 Crimp Tool

Model XXXX.XX

PI-PF 530552 1119 PureFlow Crimp Tool (EN ES FR)

EN

Product Instructions

PureFlow Crimp Tool

This document is subject to updates. For the most current Viega 

technical literature please visit www.viega.us.

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EN

Making Viega PureFlow Crimp 

Connections

Viega products are designed to be 

installed by licensed and trained plumbing 

and mechanical professionals who are 

familiar with Viega products and their installation.

 

Installation by non-professionals may void 

Viega LLC’s warranty.

Crimp outside diameters should fall within 

the dimensions listed in the table below 

when measured with a micrometer or caliper. 

Zero Lead identifies Viega

®

 products 

meeting the lead free requirements of NSF 

61-G through testing under NSF/ANSI 372 

(0.25% or less maximum weighted average lead 

content).

1

  The tubing should be cut squarely and evenly 

without burrs. Uneven, jagged or irregular cuts will 

produce unsatisfactory connections.

2

  The diagram shows a correctly cut tube compared 

with an incorrectly cut tube.

3

  Slide the crimp ring onto the tubing and insert the 

fitting into the tube to the shoulder or tube stop.

4

  Position the ring 

" to ¼" from the end of the 

tubing. 

5

  The ring must be attached straight. Center the 

crimping tool jaws exactly over the ring. Keep the 

tool at 90° and close the handles until it stops.

6

  When checking crimp connections with a 

caliper (GO/NO GO gauge), push the gauge 

STRAIGHT DOWN over the crimped ring. 

NEVER slide the gauge in from the side. Do not 

attempt to gauge the crimp at the jaw overlap 

area. The overlap area is indicated by a slight 

removal of the blackening treatment. A 

crimp 

is acceptable

 if the GO gauge fits the ring and 

the NO GO does not. A 

crimp is unacceptable

 

if the GO gauge does not fit the ring or the 

NO GO gauge does fit. An incorrect crimp must 

be cut out of the tubing and replaced. If you 

check the crimp connections with a micrometer or 

caliper, use the dimensions shown in the table.

1

3

CAUTION!

 

Do not crimp twice!

Crimp Diameter Dimensions

Ring Size (in)

Minimum (in)

Maximum (in)

0.580

0.595

½

0.700

0.715

¾

0.945

0.96

1

1.175

1.19

Adjustment Procedure

This tool is adjusted at the factory and no further 

adjustment should be required before first use.

7

  Should the tools, through extended use, require 

adjustment, follow these instructions:

 

Close tool handles until pre-load is reached (this is 

the point at which jaws meet).

 

Measure the distance between dots on the handle 

ends as shown. The correct distance is 8" to 8¾"

 

To increase the pre-load setting, remove the #6-32 

eccentric lock screw (A) and push up eccentric 

from back to disengage. Rotate counter-clockwise 

to increase the handle pre-load and clockwise to 

decrease handle pre-load. Push down eccentric 

and re-install the #6-32 lock screw (A) in the 

appropriate hole which most closely yields the 

desired handle dimension.

 

Recheck the set distance after making three 

crimps.

 

Check the crimps with the Go/No-Go gauge 

provided. If crimps do not pass testing, the tool is 

likely worn and should be replaced.

Tool Maintenance

 

Check tool calibration at least daily. It is 

recommended that at least the first and last crimp 

of the day are tested.

 

Never exceed the specified handle distance when 

adjusting your crimp tool. Premature wear will 

result.

 

Lubricate pins and linkages on a regular basis to 

maximize tool life.

UP煍

UP煍

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ES

Instrucciones del producto

Herramienta de prensado PureFlow

Este documento está sujeto a actualizaciones. Para obtener la 

documentación técnica más reciente de Viega, visite www.viega.us.

FR

Instructions produit

Outil de sertissage PureFlow Crimp

Le présent document est soumis à des mises à jour. Pour 

consulter les manuels techniques Viega les plus récents, veuillez 

visiter www.viega.us.

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