Romac Industries MACRO HP Installation Manual

INSTALLATION INSTRUCTIONS

ROMAC
INDUSTRIES,
INC.

For more information, contact Romac Industries, Inc.

STAINLESS STEEL

ARMOR

BOLT GUIDES

Read installation instructions rst before installing. Check parts to ensure that no damage has occurred during transit, the bolt guides are

aligned with the axis of the pipe, and that no parts are missing. Check the diameter of the pipe and conrm you have the proper size coupling.

™

MACRO HP

Two-Bolt Extended Range Coupling

Sizes: 4" - 12"

Step 1 • Clean the pipe surfaces wherever the gas-

kets will come in contact with the pipe, and check to see
that the pipe surface is smooth (no dents, projections,
gouges, etc.) where the gaskets seal against the pipe.

Step 2 • MACRO couplings are assembled with

Wide-Range Gaskets (see table below). If you're
coupling pipe ODs that fall within this gasket's range,
skip ahead to Step 3.

If one pipe OD falls only within the A/C Gasket's Range,
replace the Wide Range Gasket with A/C Gasket (included).

MACRO WIDE

COUPLING RANGE

4.40 - 5.60 4.40 - 5.05 4.95 - 5.60

6.60 - 7.60 6.60 - 7.15 7.10 - 7.60

8.60 - 9.75 8.60 - 9.30 9.10 - 9.75

10.70 - 11.90 10.70 - 11.30 11.25 - 11.90

11.00 - 12.20 11.00 - 11.65 11.55 - 12.20

12.70 - 13.80 12.70 - 13.30 13.15 - 13.80

13.15 - 14.40 13.15 - 13.80 13.75 - 14.40

RANGE GASKET

factory preassembled

A/C GASKET

included

Step 3 • Lubricate the gasket and pipe surface with a

suitable gasket lubricant.

Step 4a • With the bolts in the extended position,

place the coupling onto one pipe end, bring the other
pipe into position and slide coupling over the gap.

Step 4b • Bring the other pipe into position and slide

coupling over the gap. There should be a minimum of 2
inches of pipe insertion per coupling end. Conrm proper
alignment between pipes and maintain the recommend­ed gap between pipe ends (1/4” - 1/2”).

4b

Keep stainless steel armors centered
under the gap in the end rings.

Check that Bolt Guides
are positioned properly
before bolt tightening.

Step 5 • Tighten each bolt until the gasket contacts

the pipe and the coupling is snugly held in place. This
should happen at approximately 10 - 20 ft-lbs.

Step 6 • With the coupling properly located, tighten

the bolts to 65 ft-lbs.

• Connector for cathodic protection.

Available as an option. Not included on all MACRO couplings.

Document #'20-9-0036 03/25/2019

Note: Flexible Couplings do not provide protection against possible pullout of pipe ends in unrestrained conditions.

21919 20th Avenue SE • Suite 100 • Bothell, WA 98021 • Phone [phone] • 1-800-426-9341 • Fax [phone]

4a

NOTE: For cold weather conditions (below 40 deg F),
performance can be improved by warming up the
coupling and gasket.

Wait 10 minutes and
retighten to account for
settling of the gasket.

Step 7 • Conrm proper installation by pressurizing

the line and checking for leaks.

ROMAC
INDUSTRIES,
INC.

INSTALLATION INSTRUCTIONS

™

MACRO HP

Sizes: 4" - 12"

Two-Bolt Extended Range Coupling

PRECAUTIONS

1. Check diameter of pipe to make sure the correct sized coupling has been selected.

2. Conrm the pipe is round. The coupling may not t or function on pipe that is too far out of round.

3. Clean pipe to remove dirt and corrosion from pipe surface. Lubrication and additional cleaning should be
provided by brushing both the gasket and plain pipe end with soapy water or approved pipe lubricant per ANSI/
AWWA C111/A21.11.

4. Make sure no foreign materials lodge between gasket and pipe.

5. Avoid loose tting wrenches, or wrenches too short to achieve proper torque.

6. Keep threads free of foreign material to allow proper tightening.

7. Make sure the stainless steel armors are centered under the gap in the end rings.

8. Take care to follow proper bolt tightening procedures and torque recommendations. Do not overtorque.

9. Pressure test for leaks before backlling.

10. Backll and compact carefully around pipe and ttings.

11. Couplings on different pipe diameters have the potential to migrate. In these instances some form of restraint is
required.

12. Do not strike or pry on the coupling with hammers, shovels or other equipment

13. When reinstalling parts with stainless steel hardware there may be a loss in pressure holding ability due to worn
or damaged threads during the original installation.

COMMON INSTALLATION PROBLEMS

1. Pipe not inserted into the coupling far enough.

2. Too much pipe deection.

3. End rings not concentric on center ring.

4. Gasket re-installed backwards.

5. Not waiting ten minutes and retorquing to 65 ft-lbs.

21919 20th Avenue SE • Suite 100 • Bothell, WA 98021 • Phone [phone] • 1-800-426-9341 • Fax [phone]