Install Instructions

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Product Information
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IM-PP 599834 0320 ProPress Stainless
Viega ProPress 304 FKM 󶈵ttings are manufactured with a high-quality,
dull black FKM (Fluoroelastomer) sealing element installed at the factory.
The molded sealing lips also seal tube surfaces with slightly uneven
surfaces. Sealing elements are inserted into the 󶈵tting using a H1 food
grade lubricant registered with NSF and the USDA, and is approved for
use under FDA 21 CFR.
FKM possesses excellent resistance to aging, ozone, sunlight,
weathering, environmental in󶈶uences, and oils and petroleum-based
additives. Its superb resistance to high temperatures and petroleum
based additives makes it ideal for seals and gaskets in solar, district
heating, low-pressure steam, and compressed air system 󶈵ttings. It can
withstand heat spikes up to 356°F.
The operating temperature of the FKM sealing element is 14° to 284°F
(-10° to 140°C).
2.4.5.3 FKM Sealing Element
2.4.5.4 EPDM Sealing Element
All Viega 󶈵ttings are designed with cylindrical guides to keep the tube
straight and protect the sealing element during assembly.
Viega ProPress 316 󶈵ttings are manufactured with a high-quality, shiny
black EPDM (Ethylene Propylene Diene Monomer) sealing element
installed at the factory. The molded sealing lips also seal tube surfaces
with slightly uneven surfaces. Sealing elements are inserted into the 󶈵tting
using a H1 food grade lubricant registered with NSF and the USDA, and is
approved for use under FDA 21 CFR.
The EPDM sealing element possesses excellent resistance to aging,
ozone, sunlight, weathering, environmental in󶈶uences, and most alkaline
solutions and chemicals used in a broad range of applications.
The operating temperature of the EPDM sealing element is 0° to 250°F
(-18° to 120°C).
2.4.5.5 Cylindrical Guides