Romac Industries RG-PVC Installation Manual

INSTALLATION INSTRUCTIONS

ROMAC
INDUSTRIES,
INC.

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Read installation instructions rst before installing. Check parts to ensure that no damage has occurred during transit and that no

parts are missing. Also check the diameter of the pipe and the range marked on the restrainer to ensure you have the proper size.

Style RG-PVC Mechanical Joint Retainer

FOR PVC PIPE 3" - 12" DO NOT USE ON HDPE, DUCTILE IRON OR STEEL PIPE.

Document #5-9-0009 05/06/2009

Step 1 • Identify the pipe. The RG-PVC is for use with

C-900 and IPS PVC pipe. Check the compatibility chart on
the back to make sure the pipe you are using is listed.

Step 2 • Check the parts to insure that no damage has

occurred in transit and that no parts are missing.

Step 3 • Clean and lubricate the pipe end and gasket

with soapy water or other
approved pipe lubricant per
ANSI/AWWA C111/A21.11.
Place the RG-PVC on the
pipe with the nose extension
towards the plain end. Place
the gasket over the pipe so

the at side is toward the

RG-PVC.

Note: Make sure the correct gasket is being
used. The Romac DI/IPS combination gasket can
be used on both C-900 and IPS pipe.
A standard MJ gasket can be used on C-900 pipe
and an MJ x IPS transition gasket on IPS pipe

.

Step 4 • Insert the pipe into the mechanical joint tting

and press the gasket rmly into the gasket recess. Keep the

joint straight during assembly.

Step 5 • Slide the gland toward the joint until the nose

of the gland touches the gasket. Insert the T-bolts and hand
tighten the nuts.
Make any deec­ti on after hand
tightening the T­bolt nuts but before
tightening them to
the proper torque

specications (5º

maximum).

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

Step 6 • Tighten T-bolts

to the torque recommended
in AWWA C111. Maintain the

same overall gap between the
RG-PVC and the MJ bell face
by tightening the T-bolts in a

uniform criss-cross pattern (12

o’clock, 6 o’clock, 3 o’clock,
9 o’clock) until proper torque
is achieved. Using a torque
wrench is highly recommended. For best results, wait 10
minutes and retighten bolts to proper torque.

RECOMMENDED TORQUE FOR T-BOLTS

3" RG-PVC 45 - 65 ft-lbs.
4 - 12" RG-PVC 75 - 90 ft-lbs.
Thin Wall PVC 40 - 50 ft-lbs.

Note:

90 ft-lbs. torque = 12" wrench w/90 lbs. force

Step 7 • Tighten the restraining bolts until all the lugs just

touch the pipe. Then, tighten each bolt, alternating between
bolts in a uniform criss-cross
pattern until the heads break
off.

Note: On thin wall D.I. size
PVC pipe such as C909,
Class 100 C900 and IPS
PVC less than Class 160,
torque the restraining bolts

to 30-40 ft-lbs. (In this case,

the torque off bolts may not
break off.)

Step 8 • Pressure test for leaks before backlling.

Note: In the event you need to remove the RG-PVC
restrainer, be sure the pipe is not pressurized. To loosen
the restraining bolts, use a 5/8” hex wrench or socket.

To reassemble, follow the above procedure and tighten the

restraining bolts using a 5/8" wrench to 30 - 40 ft-lbs.

ROMAC
INDUSTRIES,
INC.

INSTALLATION INSTRUCTIONS

Style RG-PVC Mechanical Joint Retainer

FOR PVC PIPE 3" - 12" DO NOT USE ON HDPE, DUCTILE IRON OR STEEL PIPE.

RG for PVC PIPE MATERIAL COMPATIBILITY CHART

Pipe Material Pipe Size Working Pressure Comments

PVC - D.I. Size (C900) 4" - 12" Rating of pipe All Classes
PVC - “Class Pipe” (IPS Size) 3" - 12" Rating of pipe ASTM D 2241. Class 160 & 200
PVC - Sched. 40 & 80 3" - 12" Rating of pipe ASTM D 1785
PVC - D.I. Size (C909) 4" - 12" Rating of pipe AWWA C909 DI size
Ductile Iron - - RG-PVC not for use on ductile iron
Steel - - RG-PVC not for use on steel
Asbestos Cement - - RG-PVC
Fiberglass - - RG-PVC not for use on berglass
HDPE - - RG-PVC not for use on HDPE

May be used on thin wall DI size PVC such as C909, Class 100 C900 and IPS PVC less than Class 160 with special torque requirements, see Steps 6 & 7.
NOTE: Angular deection of up to 5º is allowable between the pipe and tting for RG-PVC sizes 3"-12".

PRECAUTIONS

1. Make sure the correct gasket is being used. The Romac DI/IPS combination gasket can be used on both C-900 and IPS pipe.

A standard MJ gasket can be used on C-900 pipe and an MJ x IPS transition gasket on IPS pipe.

2. Check diameter of pipe to make sure you are using the correct size RomaGrip; also check gasket to make sure it is the size you think it is.

3. Be sure to clean pipe of as much dirt and corrosion as possible in the area that the gasket will seal.

4. Lubrication both the gasket and the pipe end with soapy water or approved pipe lubricant per ANSI/AWWA C111/A21.11.

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

6. Avoid loose tting wrenches, or wrenches too short to achieve proper torque.

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

8. Take extra care to follow proper bolt tightening procedures and torque recommendations. Bolts are often not tightened enough when a
torque wrench is not used.

9. Be sure that the RG-PVC is centered around the pipe.

10. Pressure test for leaks before backlling.

11. Backll and compact carefully around pipe and ttings.

not for use on asbestos cement

COMMON INSTALLATION PROBLEMS

1. T-Bolts are not tightened to the proper torque.

2. Rocks or debris between pipe and gasket.

3. Dirt or debris between pipe and restraining pad.

4. Dirt on threads of bolts or nuts.

5. Not enough pipe inserted into bell.

6. Not using a Romac DI/IPS combination gasket or MJ x IPS transition gasket when using the RG-PVC on IPS size PVC pipe.

7. Using the RG-PVC on IPS PVC pipe with wall thickness thinner than Schedule 40 PVC pipe.

8. Using the RG-PVC on the wrong pipe.

IF RESTRAINER MUST BE REMOVED Rocks or debris between pipe and gasket.

1. Make sure pipe is not pressurized. Removing the restrainer could cause the pipe joint to separate.

2. To remove the RG-PVC use a 5/8" hex wrench or socket.

3. To reassemble, follow installation procedures and tighten the restraining bolts using a 5/8" hex wrench to 30-40 ft-lbs.

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