Install Instructions

Installation Instructions
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IM-PP 599834 0320 ProPress Stainless
4.2 Installing and Mounting the Tube
Observe the general rules of hanging and mounting:
■ Fixed tube should not be used as support for other tubing and
components.
■ Do not use pipe hooks.
■ Observe distance between 󶈵ttings and mounting points.
■ Observe the expansion direction – plan 󶈵xed and sliding mounts.
4.2.1 Pipe Hangers and Supports
Pipe supports perform two functions:
■ To provide support for the tube.
■ To guide the tube during thermal expansion and contraction.
Fittings must not be used as support
■ System malfunction may result from additional stress and
strain put on the 󶈵tting.
■ At no point in the system should a 󶈵tting be the sole means
of support. For example, when installing a tee, both the
branch and the trunk must be properly supported.
Industry standard practices and guidelines shall be used for tube layout
and support. Viega press connections require no special consideration for
support.
Hangers and supports must conform to the local code requirements. In the
absence of local code requirements, hangers and supports should conform
to ANSI/MSS SP 58 Pipe Hangers and Supports - Materials, Design,
Manufacture, Selection, Application and Installation. For extinguishing
systems per NFPA 17A and the system manufacturer's installation,
operation, and maintenance manual, the maximum spacing is 10 feet.
4.3 Space Requirements and Intervals
Not enough space
Malfunctions may arise from improper technique.
■ Adhere to minimum space requirements.
■ Make sure that the space required for pressing tools is
available if 󶈵ttings will be pressed immediately upstream or
downstream from wall or ceiling penetrations.
■ Take the minimum required distances into consideration
during the planning phase of the project whenever possible.