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 limited 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 Viega MegaPress ½" to 2" fittings are compatible with ASTM A53, A135, A106 and A795 black iron pipe. 3.2 Handling instructions Viega MegaPress components shall be free from dirt, debris or items that may interfere with the sealing element and the press connection. Pipe shall be cut using a pipe cutter or metal saw. It is not acceptable to cut the pipe with an abrasive cutting wheel or torch. 3.
3.4 Pressing requirements The following requirements must be considered when pressing Viega MegaPress fittings. Minimum distance requirements for press jaws between pipes and walls 3.4.1 Minimum distance between fittings Space between fittings must be provided for the proper operation of the press jaw or press ring. (Refer to chart below.) Failure to provide this distance may result in an improper seal. 3.4.
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 3.4 Pipe Size Minimum space requirement, amin for press tools RIDGID RP 330-B, 330-C and 340-B Press Tool (in) ½" to 1" 1½" 1¼" to 2" ⅜" Table 3.
3.4.4 Pressing with ring and actuator in tight quarters 1. Wrap the actuator ring around the press fitting with the opening facing away from you. 2. Close the actuator tight around the fitting. 3. Rotate the actuator ring until the press jaw receptacle is facing toward you. 4. Properly insert press jaws and begin the press fitting procedure. Figure 3.5 Figure 3.6 Figure 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 Deflection 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. When pressing Viega MegaPress fittings in a system, the deformation of the fitting is constant.
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3.10 Viega MegaPressG fitting system ½" to 2" installation 1 2 3 4 5 6 7A 7B 7C 8A 8B 8C Pipe Diameter d 9 10 d (in) d (mm) 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.
Notes 16 IM-MP 724992 0117
Notes IM-MP 724992 0117 17
Notes 18 IM-MP 724992 0117
4 Warranty VIEGA MEGAPRESS 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 metal press fittings (Viega Product) with application appropriate sealing element when properly installed in non-industrial and non-marine applications and under normal conditions of use shall be free from failure caused by manufacturing defects for a period of ten (10) years from date of installa
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