Install Instructions
Table Of Contents
- ProPress stainless approved fluids
- ProPress stainless approved gases
- Dimensional data
- ½" Stainless Steel, ASTM A312 flow rate, velocity, loss
- ¾" Stainless Steel, ASTM A312 flow rate, velocity, loss
- 1" Stainless Steel, ASTM A312 flow rate, velocity, loss
- 1¼" Stainless Steel, ASTM A312 flow rate, velocity, loss
- 1½" Stainless Steel, ASTM A312 flow rate, velocity, loss
- 2" Stainless Steel, ASTM A312 flow rate, velocity, loss
- 2½" Stainless Steel, ASTM A554 flow rate, velocity, loss
- 3" Stainless Steel, ASTM A554 flow rate, velocity, loss
- 4" Stainless Steel, ASTM A554 flow rate, velocity, loss
- Fitting friction loss equivalent length of tube (feet)
- MSS SP-58 or the maximum spacing and minimum rod sizes
- Minimum distance between press fittings
- ProPress standard jaws clearance requirements
- ProPress standard jaws clearance requirements between tube, wall, and floor
- ProPress compact jaws clearance requirements
- ProPress compact jaws clearance requirements between tube, wall, and floor
- ProPress rings dimensions
- ProPress rings with V1 actuator clearance requirements
- ProPress rings with V2 actuator clearance requirements
- ProPress rings with V1 actuator clearance requirements between tube, wall, and floor
- ProPress rings with V2 actuator clearance requirements between tube, wall, and floor
- ProPress rings with C1 actuator clearance requirements between tube, wall, and floor
- ProPress XL-C rings dimensions
- ProPress XL-C rings clearance requirements
- ProPress XL-C rings clearance requirements between tube, wall, and floor
- Minimum distance between existing soldered or brazed fitting and ProPress fitting
- Minimum distance between soldered fitting and ProPress fitting
- Minimum insertion depths for ProPress Stainless ½" to 2"
- Insertion depths for ProPress Stainless ½" to 2" no-stop couplings
- Minimum insertion depths ProPress Stainless 2½" to 4"
- Insertion depths for ProPress Stainless 2½" to 4" no-stop couplings
- About this Document
- Disclaimer
- Product Information
- Handling Instructions
- Installation Instructions
- Limited warranty
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 inuences, 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 inuences, 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










