Viega MegaPress System Installation Manual The global leader in plumbing, heating and pipe joining systems
Heritage of quality, vision for the future Viega’s heritage of superiority demands nothing but the best for our customers. Engineered to be efficient, Viega products perform at the highest possible level, providing confidence and peace of mind. Viega is the only manufacturer to offer press systems in multiple pipe joining materials.
Contents 1 System Description 1.1 Viega MegaPress. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1.1 Approvals and certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1.2 Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Viega MegaPressG . . . . . . . . . . .
1 System Description The Viega MegaPress fitting system is a state-of-the-art IPS press fitting system that provides an economical and reliable installation of schedule 5 to schedule 40 ASTM A53, A106, A135 and A795 steel pipes. Viega MegaPress fittings are available in sizes ranging from ½" to 2" and provide a fast, reliable, consistent joining method. Our products are the result of decades of experience in manufacturing press fittings.
1.3.1 Viega Smart Connect feature Viega MegaPress system sizes ½" to 2" incorporate the Viega Smart Connect feature, which assures 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 that have not been pressed prior to putting the system into operation.
1.3.
2 Tools 2.1 Tools Viega recommends RIDGID press tools, Viega MegaPress jaws and ring sets and RIDGID pipe preparation tools manufactured and sold by Ridge Tool Company for use with Viega Systems. Viega MegaPress products carry a warranty against defects in material and workmanship. The RIDGID lifetime warranty applies to tools, jaws and press rings from The Ridge Tool Company. For more information, contact Ridge Tool Company at 1-888-743-4333 or visit www.RIDGID.com. 2.
3 General Installation Instructions 3.1 Pipe selection 3.2 Handling instructions Viega MegaPress sealing elements, separator rings and grip rings are to be visually inspected prior to installation to ensure the seal is intact and properly located within the fitting. See “1.3 Fitting description” on Page 4 for more information. Viega MegaPress sealing elements may not be removed or replaced.
Minimum distance requirements for press jaws between pipes and walls 3.4.3 Minimum space requirements for the press fitting process in front of and behind components Ensure that the space required for Viega system pressing tools is available if press fittings will be executed immediately upstream and downstream from wall or ceiling penetrations. Figure 3.2 A minimum B minimum in in ½" 1 2⅝ ¾" 1¼ 3⅛ 1" 1¾ 3⅝ Pipe Diameter Figure 3.4 Table 3.
3.4.4 Pressing with ring and actuator in tight quarters 2 1 3 Rotate the actuator ring until the press jaw receptacle is facing toward you. 4 Figure 3.5 Figure 3.6 Figure 3.7 Pipe Diameter A in B in C in Pipe Diameter A in B in Pipe Diameter A in B in C in 1¼" 6 6¼ 2½ 1¼" 3¾ 4⅞ 1¼" 3¾ 3 4⅞ 1½" 6 6¾ 2⅝ 1½" 4 5⅛ 1½" 4 4 5⅛ 2" 6 6⅞ 2½ 2" 4 5⅜ 2" 4 4 5⅜ Table 3.6 10 Table 3.7 Table 3.
3.5 Welding requirements 3.6.3 Piping exposed to freezing temperatures The following requirements must be considered when welding in the same vicinity as Viega MegaPress fittings. In the Viega MegaPress system, the EPDM sealing element can be installed in ambient temperatures down to 0°F. The HNBR sealing element available with Viega MegaPressG fittings can be installed in ambient temperatures down to -40°F.
3.6.9 Pipe hangers 3.7 Viega MegaPress installation requirements Hangers and supports must conform to the requirements of ANSI/MSS SP 58, Pipe Hangers and Supports, Materials, Design, Manufacture, Selection, Application and Installation. Supports, hangers and anchors are to be installed in a manner that does not interfere with the free expansion and contraction of the piping. The following are special requirements to consider when installing the Viega MegaPress fitting system.
3.
MegaPressG® 1 3 2 4 5 6 7A 7B 7C 8A 8B 8C Pipe Diameter (mm) d 9 10 d d (in) ½" 3 ⁄16 5 ¾" 3 ⁄16 5 1" 3 ⁄16 5 1¼" ⅜ 10 1½" ⅜ 10 2" ⅜ 10 1. Cut piping at right angles using displacement type cutter. 2. Keep end of piping a minimum of 4" away from the contact area of the vise to prevent possible damage to the piping in the press area. See MegaPress Manual for minimum clearance required for prep tools. 3.
4 Warranty VIEGA MEGAPRESS® SYSTEMS LIMITED WARRANTY Subject to the conditions and limitations in this Limited Warranty, Viega LLC (Viega) warrants to end users, installers, and distribution houses that its Viega MEGAPRESS and Viega MEGAPRESSG metal press fittings (Viega Product) with application appropriate sealing element when properly installed shall be free from failure caused by manufacturing defects for a period of ten (10) years from date of installation in Viega MEGAPRESS Approved Applications for f
This document subject to updates. For the most current Viega technical literature please visit www.viega.us. Click Services -> Click Electronic Literature Downloads -> Select Product Line -> Select Desired Document Viega 301 N. Main, 9th Floor Wichita, KS 67202 Phone: 1-800-976-9819 Fax: 1-316-425-7618 www.viega.us ©2014, FostaPEX®, MegaPress®, MegaPress®G, ProPress®, ProPress®G, ProGeo®, SeaPress® and Viega® are registered trademarks of Viega GmbH & Co.
