CLEANED AND BAGGED PRESS FITTINGS FOR HIGH-PURITY SYSTEMS
Viega Cleaned and Bagged system supports customers requiring cleaned-and-bagged components for controlled environments, like pharmaceutical manufacturing, automotive and specialty paints, research labs, industrial gas distribution, precision manufacturing etc. – while maintaining the speed, consistency, and confidence of press technology.
Confidence backed by Viega.
One of the only press manufacturers to offer a warrantied Cleaned and Bagged offering, supported by Viega’s industrial warranty.
Installation-ready right out of the bag.
Precision-cleaned and individually bagged to help prevent contamination before installation even begins. No field cleaning required.
Proven press technology elevated for clean environments.
Standard Viega press procedures, allowing crews to install quickly while meeting demanding cleanliness requirements – no hot work, no flame, no purge gas.
Backed by Viega engineering and industrial warranty.
Specify with confidence. Engineered for ultra-high purity applications, Viega Cleaned and Bagged fittings and valves deliver the reliability and warranty backing that high-performance projects demand.
Gas purity support – up to 99.9999% purity gas systems
Cleaning performed in ISO Class 8 cleanroom or better
Industry standards supporting high-purity system design and installation, including ASTM G93 and CGA G-4.1.
Not for use with: Medical gas systems (NFPA 99) | FDA food-contact applications
LEARN MORE ABOUT CLEANED AND BAGGED
WHY VIEGA CLEANED AND BAGGED?
Purity Protected from Day One
System cleanliness begins the moment components arrive on site. Precision-cleaned and individually bagged to help prevent contamination before installation even begins – without any additional steps.
Faster, Cleaner Installs
Get your crew in and out faster. Reduced field cleaning and preparation steps. Press connections eliminate hot work – no flame, no permits, no delay.
Warranty-Backed Confidence
Backed by Viega engineering expertise and industrial warranty support across the entire Cleaned and Bagged system.
One System, One Manufacturer
The only press manufacturer with a cleaned and bagged portfolio under a single system and installation method.
HIGH-PURITY SYSTEMS REQUIRE MORE THAN JUST CLEAN PARTS.
Designed for up to 6N purity gas systems
Components cleaned to remove oils, particulates, VOCs, hydrocarbons, silicone, salts, chlorides, fibers, and corrosion products to specific levels.
Sealed from cleanroom to jobsite
Individually packaged after cleaning to maintain cleanliness through transport and jobsite handling. Fittings retain their cleanliness for in the bag, providing scheduling flexibility without compromising system integrity.
Compatible with existing Viega press tools
Installation follows standard Viega press procedures. Same tools, same crew, same confidence – in even the most demanding environments.
DESIGNED FOR HIGH-PURITY INDUSTRIES
Cleaned and Bagged supports applications where system cleanliness helps preserve gas purity and operational reliability.
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Pharmaceutical Manufacturing
(cGMP-regulated facilities)
Utility and process gas systems supporting cGMP facility requirements
Automotive & Specialty Paint
High-purity gas systems for precision coating and manufacturing environments
Research Laboratories
High-purity gas supply, analytical systems
Advanced & Precision Manufacturing
Controlled environments, process piping
Industrial Gas Distribution
High-purity gas delivery, oxygen-enriched systems
Any 6N Purity System
Any system requiring up to 99.9999% gas purity
Not for use with: Medical gas systems (NFPA 99) | FDA food-contact applications
PROVEN PRESS TECHNOLOGY. ELEVATED FOR CLEAN APPLICATIONS.
Every Viega Cleaned and Bagged fitting and valve follows a controlled, repeatable process – from cleaning through delivery.
01 - Controlled Cleaning
Cleaned in an ISO Class 8 cleanroom or better under documented Viega requirements and controls. Removes contaminants to specific, verified levels.
ASTM G93 – Cleaning methods & cleanliness levels
CGA G-4.1 – Oxygen system cleaning practices
CGA G-7.1 – Commodity Specification for Breathing Air
MSS SP-138 – Guidance for valves & fittings
ISO 8573 – Compressed air contaminants & purity
02 - Inspection & Sealed Packaging
Each fitting is individually inspected and bagged after cleaning to prevent contamination during transport and jobsite handling.
- Maintains cleanliness until installation
- Reduces jobsite preparation time
- Supports controlled installation workflows
- Orders palletized with sealed bags maintained
03 - Press, Test & Go
Installation follows standard Viega press procedures using existing tools. No flame, no hot work. Consistent, repeatable connections in even the most demanding environments.
- No flame or hot work required
- Reliable, consistent press connections
- Compatible with existing Viega press tools*
- Reduces installation preparation steps
PART OF THE COMPLETE VIEGA PRESS SYSTEM
ProPress Cleaned and Bagged products integrate with the Viega press portfolio, allowing contractors and engineers to standardize on one installation method across applications.
ProPress® Fittings
ProPress copper ½" – 4" fittings
Expanded Portfolio – Multiple materials & valve types
- ProPress 316 Stainless Steel fittings
MegaPress 304 FKM Stainless Steel fittings
ProPress 3pc Valves
FREQUENTLY ASKED QUESTIONS ABOUT CLEANED AND BAGGED
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What are Viega Cleaned and Bagged fittings, and how do they relate to CFOS?
Viega Cleaned and Bagged fittings are precision-cleaned press fittings that are individually packaged after cleaning to protect them from contamination during transportation, storage, and jobsite handling – arriving ready to install without any field cleaning required. Cleaned and Bagged and Cleaned for Oxygen Service (CFOS) refer to the same category of precision-cleaned components. Viega uses “Cleaned and Bagged” as its primary designation because the cleaning standards apply across a broad range of high-purity industrial applications – not exclusively oxygen service. Cleaning is tested to ASTM G93 and CGA G-4.1, the recognized standards for high-purity and oxygen-service cleaning. Viega Cleaned and Bagged fittings are not approved for medical gas applications governed by NFPA 99 or for FDA food-contact applications.
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What applications and purity levels are Viega Cleaned and Bagged fittings designed for?
Viega Cleaned and Bagged fittings are designed for high-purity and controlled-environment applications where system cleanliness directly impacts safety, product quality, and long-term reliability. Supported industries include pharmaceutical manufacturing, automotive and specialty paint facilities, research laboratories, battery manufacturing, semiconductor manufacturing, advanced and precision manufacturing, and industrial gas distribution. Cleaned and Bagged components are designed to support gas systems requiring purity levels up to 99.9999%, or 6N purity, depending on the application and system requirements. Cleaning is tested to ASTM G93 and CGA G-4.1 as the primary cleaning standards, with CGA G-7.1, MSS SP-138, and ISO 8573 referenced as additional industry standards. All cleaning is performed in an ISO Class 8 cleanroom or better.
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What Cleaned and Bagged products are available and how do they install?
Viega’s Cleaned and Bagged portfolio includes select ProPress copper and stainless steel fittings and valves, with additional products being added as the portfolio expands. For current availability, reference Viega’s product documentation or connect with a Viega representative. Installation follows standard Viega press procedures and is compatible with existing Viega press tools where specified, allowing crews to work with familiar equipment and methods – no special tooling required. Fittings arrive precision-cleaned and individually bagged, eliminating the need for field cleaning. Components should remain in their protective packaging until installation, and all work should follow Viega’s applicable installation instructions for the specific product and size.
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Are Viega Cleaned and Bagged fittings approved for medical gas systems?
No. Viega Cleaned and Bagged fittings are not intended for medical gas systems governed by NFPA 99 and are not approved for FDA food-contact applications. Cleaned and Bagged fittings are engineered for industrial and other qualifying high-purity applications.
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