viega ESMP 123 MegaPress to 2 Fitting System User Manual
- June 15, 2024
- viega
Table of Contents
Engineering Specifications
Viega MegaPress® ½” to 2″ Fitting System
This document is subject to updates. For the most current Viega technical
literature please visit www.viega.us.
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.Part 1: General
Part 1: General
1.1 Summary
MegaPress is a Cold Press Mechanical Joint Fitting System utilizing standard
Schedule 5 to Schedule 40 Carbon Steel Pipe.
1.2 Definitions
ASME: American Society of Mechanical Engineers
ASTM: American Society for Testing and Materials
CRN: Canadian Registration Number
CSA: Canadian Standards Association
EPDM: Ethylene Propylene Diene Monomer
FM: Factory Mutual
IACS: International Association of Classification Societies
IAPMO: International Association of Plumbing & Mechanical Officials
ICC: International Code Council
MSS: Manufacturers Standardization Society
NACE International: National Association of Corrosion Engineers
NFPA: National Fire Protection Association
UL: Underwriters Laboratory
1.3 References
ASME A13.1 Scheme for the Identification of Piping Systems
ASME B1.20.1 Pipe Threads, General Purpose (inch)
ASME B16.3 Malleable Iron Threaded Fittings
ASME B16.9 Factory Made Wrought Steel Butt Welding Fittings
ASME B31.1 Power Piping
ASME B31.3 Process Piping
ASME B31.9 Building Piping Systems
ASME B36.10 Welded and Seamless Wrought Steel Pipe
ASTM A106 Specification for Seamless Carbon Steel Pipe – High Temperature
Service
ASTM A135 Specification for Electric-Resistance-Welded Steel Pipe
ASTM A420 Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low
Temperature Service
ASTM A53 Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated,
Welded and Seamless Pipe
ASTM A795 Specification for Black and Hot-Dipped Zinc-Coated (Galvanized)
Welded and Seamless Steel Pipe for Fire Protection Use
ASTM D2000 Classification System for Rubber Products in Automotive
Applications
ASTM F1476 Performance of Gasketed Mechanical Couplings for Use in Piping
Applications
ASTM F3226 Standard Specification for Metallic Press-Connect Fittings for
Piping and Tubing Systems
IACS Requirements concerning Pipes And Pressure Vessels
IAPMO Uniform Mechanical Code
IAPMO Uniform Plumbing Code
IAPMO Z1117 Press and Nail Connections
ICC International Mechanical Code
ICC International Plumbing Code
NACE RP 0169 Control of External Corrosion on Underground or Submerged
Metallic Piping Systems
MSS SP 58 Pipe Hangers and Supports Materials, Design and Manufacturer
NFPA13 Standard for the Installation of Sprinkler Systems
NFPA13D Standard for the Installation of Sprinkler Systems in One/Two Family
Dwellings and Mobile Homes
NFPA13R Standard for the Installation of Sprinkler Systems for Residential
Occupancies up to and including Four Stories in Height
NFPA14 Standard for the Installation of Standpipe and Hose Systems
1.4 Quality Assurance
A. Installer shall be qualified, licensed within the jurisdiction, and
familiar with the installation of cold press mechanical joint systems.
B. MegaPress press fittings shall be installed using the proper tool,
actuator, jaws and rings as instructed by the press fitting manufacturer.
C. The installation of carbon steel pipe in sprinkler or standpipe systems
shall conform to NFPA13, 13D, 13R and 14.
D. The installation of carbon steel pipe in Hydronic systems shall conform to
the requirements of the ICC International Mechanical Code or the IAPMO Uniform
Mechanical Code.
E. Compliance to ASME B31.9 for building services piping valves.
1.5 Delivery, Storage And Handling
A. Carbon steel pipe shall be shipped to the job site in such a manner to
protect the pipe. The pipe and fittings shall not be roughly handled during
shipment. Pipe and fittings shall be unloaded with reasonable care.
B. Protect the stored product from moisture and dirt. Elevate above grade.
When stored inside, do not exceed the structural capacity of the floor.
C. Protect fittings and piping specialties from moisture and dirt.
1.6 Project Conditions
Verify length of pipe required by field measurements.
1.7 Warranty
A. Viega LLC (Viega) warrants to end users, installers and distribution houses
that its Viega metal press products (MegaPress) when properly installed shall
be free from failure caused by manufacturing defects. Refer to Viega
warranties for specific information.
B. Viega LLC (Viega) manufacturer of the fittings shall not be responsible for
the improper use, handling or installation of the product.
Part 2: Products
2.1 Manufacturer
Viega LLC
585 Interlocken Blvd.
Broomfield CO, 80021
Phone: 800-976-9819
www.viega.us
2.2 Material
A. Pipe: Carbon steel pipe shall conform to ASTM A53, A106, A135 or A795. Pipe
schedule (pipe wall thickness) shall conform to the standard referenced
dimensions for Schedule 5 to 40.
B. Fittings: Cold Press Mechanical Joint Fitting shall conform to material
requirements of ASTM A420 or ASME B16.3 and performance criteria of IAPMO
Z1117 and ASTM F3226. Sealing elements for press fittings shall be EPDM.
Sealing elements shall be factory installed or an alternative supplied by
fitting manufacturer. Press ends shall have Smart Connect® technology design
(leakage path). MegaPress fittings with the Smart Connect technology assure
leakage of liquids and/or gases from inside the system past the sealing
element of an unpressed connection. The function of this feature is to provide
the installer quick and easy identification of connections which have not been
pressed prior to putting the system into operation.
C. Pipe Thread: Pipe Threads shall conform to ASTM B1.20.1.
D. Hangers and supports: Hangers and supports shall conform to MSS SP 58.
E. Hanger spacing: In accordance with ASME B 31.1, NFPA54, UPC, IMC other
National or local codes.
2.3 Source Quality Control
A. Fittings shall be listed & approved for their intended application.
B. All fittings used in Fire Sprinkler Applications shall be UL listed.
C. All fittings used in Fire Sprinkler Applications shall be FM listed.
Part 3: Execution
3.1 Examination
A. The installing contractor shall examine the pipe and fittings for defects,
sand holes or cracks. There shall be no defects of the pipe or fittings. Any
damaged pipe or fittings shall be rejected.
B. The installing contractor shall insure that internal components of the cold
press mechanical joint press fitting are properly in place and free from
damage. This is to include sealing elements, grip ring & separator rings.
3.2 Preparation
A. Carbon steel pipe shall be cut with an approved pipe cutting tool. The pipe
shall be cut square to permit proper joining with the fittings.
B. Remove scale, slag, dirt and debris from inside and outside of pipe and
fittings before assembly. The protective coating shall be removed from the
outside of the pipe end and shall be wiped clean and dry. The burrs on the
pipe shall be reamed with a deburring or reaming tool.
3.3 Installation General Locations
Plans indicate general location and arrangement of piping systems. Identified
locations and arrangements are used to size pipe and calculate friction loss,
expansion, pump sizing and other design considerations. Install piping as
indicated, except where deviations to layout are approved on coordination
drawings.
3.4 Installation
A. Pressure ratings: Components shall have a pressure rating equal to or
greater than the system operating pressure.
B. Install piping free of sags, bends and kinks.
C. Change of Direction: Fittings shall be used for changes in direction and
branch connections.
D. Threaded Joints: Threaded joints shall have pipe joint compound or teflon
tape applied to the male threads only.
Tighten joint with a wrench and backup wrench as required.
E. Press Fittings: MegaPress Cold Press Mechanical Joint Fittings shall be
installed in accordance with the manufacturer’s installation instructions. The
protective corrosion coating shall be removed from the outside of the pipe
end. The pipe shall be fully inserted into the fitting and the pipe marked at
the shoulder of the fitting. The fitting alignment shall be checked against
the mark on the pipe to assure the pipe is fully engaged (inserted) in the
fitting. The joints shall be pressed using the tool(s) approved by the
manufacturer.
F. Pipe Protection: Pipe shall be protected against abrasion where pipe is in
contact with other building members by an approved tape, pipe insulation or
otherwise suitable method of isolation.
G. Penetration Protection: Provide allowance for thermal expansion and
contraction of pipe passing through a wall, floor, ceiling or partition by
wrapping with an approved tape or pipe insulation or by installing through an
appropriately sized sleeve. Penetrations for fire resistant rated assemblies
shall maintain the rating of the assembly.
H. Backfill Material: Backfill material shall not include any ashes, cinders,
refuse, stones, boulders or other materials which can damage or break the
piping or promote corrosive action in any trench or excavation in which piping
is installed.
I. Horizontal Support: Install hangers for horizontal piping in accordance
with MSS SP 58.
J. Vertical Support: Pipe shall be supported at each floor.
K. Galvanic Corrosion: Hangers and supports shall be applicable to prevent
galvanic corrosion between the system and the supporting members.
L. Seismic Restraint: In areas where seismic conditions exist, the system
shall be installed per the applicable seismic recommendations.
M. Pipe Identification: Systems shall be identified in accordance with the
requirements of ASME A13.1.
3.5 Field Quality Control
A. All piping systems shall be tested per applicable local codes for joint
tightness & leak detection prior to being placed in service.
B. Water Testing: The piping system shall be water tested for joint tightness.
The piping system shall be filled with water. The system shall be pressurized
to the maximum pressure and length of time required by the code or standard.
The system shall have no leaks at the rated pressure.
C. Air Testing: The piping system shall be air tested for joint tightness. The
piping system shall be pressurized with air to the maximum pressure of the
system or to the code or standard required minimum for the required length of
time. The system shall have no leaks at the rated pressure.
Viega LLC
585 Interlocken Blvd.
Broomfield, CO 80021
Phone800-976-9819
www.viega.us
ES-MP 1023 MegaPress ½ to 2 Fitting System
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