Viega 90355 Megapress SS316 Press Reducer 3/4 X 1/2 in

Product Description

The VIEGA 90355 is a 316 stainless steel press-by-fitting reducer designed for use in MegaPress piping systems. It transitions from a 3/4-inch press connection to a 1/2-inch fitting end, allowing technicians to reduce pipe size within a press-fit assembly without soldering, threading, or open flame. The EPDM sealing element is factory-installed, making the fitting ready to press on contact. Licensed plumbers and pipefitters working on hydronic, potable water, and light commercial mechanical systems are the primary installers of this component.

This reducer is suited for residential and light commercial piping applications where stainless steel construction is required for corrosion resistance or system compatibility. The MegaPress system is commonly used in hydronic heating, cooling distribution, and domestic water supply installations where quick, reliable press connections reduce labor time and eliminate the need for a torch. The 3/4-inch-by-1/2-inch size transition is a common reduction in branch line and fixture supply scenarios.

Key Features

• 316 stainless steel body provides strong corrosion resistance in demanding piping environments
• Press-by-fitting end configuration allows integration into existing MegaPress assemblies
• EPDM sealing element is factory-installed for consistent, reliable seals
• No solder, flux, or open flame required — press tool only
• 3/4-inch-by-1/2-inch size handles common branch and supply line reductions

Compatibility

Designed for use in VIEGA MegaPress 5115.1 press-fit piping systems with compatible press jaws and tools. Intended for use with stainless steel press piping in MegaPress-compatible assemblies.

Installation Notes

Installation requires a VIEGA-compatible press tool fitted with the correct jaw size for each connection end. Shut off and depressurize the system before cutting into existing pipe. Inspect the pipe end for roundness and clean cuts before inserting into the fitting. This work is typically performed by a licensed plumber in accordance with applicable local plumbing codes.

Technical Specifications

• Fitting Size: 3/4 inches x 1/2 inches
• Connection Type: Press x Fitting
• Fitting Material: Stainless Steel 316
• Seal Material: EPDM
• Press System: MegaPress
• Weight: 0.13 pounds

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 90355