EZ-PURGE BLIND PRODUCT SPECIFICATIONS:
- Line sizes: 1/2" - 96"
- Flange Pressure Rating Classes: 150#, 300#, 600#, 900#, 1500#, 2500#
- Standard blind is 1/2" thick with a 1/4" deep channel, available in widths of 3/4", 1", or 1 1/2", depending on the size of the blind
- Stocked metals: 516 - Gr70 carbon steel and 304/316 stainless steels; can supply any alloy
- Carbon steel blinds are painted black and labeled with size and rating for quick identification
- The ratio of the area covered by the gasket to the purge area is about 50%, ensuring proper sealing.
- Easy to recognize unique "P" handle shape and color coding
- Custom configurations are offered to match specific purge flow requirements
- In-stock orders ship same day, and same day local delivery available in Texas and Lousiana
WHY YOU NEED TO USE A PURGE BLIND
USA Industries offers the The EZ Purge slip blind is a safe and modern alternative to the outdated line purging practices involving a slip blind and spacers, which poses safety risks and equipment damage. The EZ Purge slip blind creates a "standoff" area at the flange site for line purging. It seals evenly, preventing damage to flange gasket surfaces caused by wedges, tubing, or other metals used to create space.
- Safety is enhanced by a purge blind, which minimizes the risk of accidents or environmental hazards during maintenance or repair activities by isolating sections of the pipeline. It helps control the release of hazardous substances or gases, reducing the potential for leaks or spills.
- During maintenance, repairs, or modifications of piping systems, a purge blind prevents contamination by sealing off sections of the piping where work is being done. This ensures that foreign materials such as dirt, debris, or contaminants do not enter the system.
- Facilitating welding operations, a purge blind creates a controlled environment during welding or fabrication processes by sealing off the section of the pipeline where welding is taking place. This allows for the purging of the pipe with inert gases such as argon to prevent oxidation and ensure high-quality welds.
- Maintaining system integrity, a purge blind isolates specific sections for inspection, testing, or repair without affecting the rest of the system. This is particularly crucial in industries where pipeline integrity is critical, such as oil and gas, chemical processing, and pharmaceuticals.
- During pressure testing procedures, a purge blind is used to isolate sections of the piping system for testing purposes. By sealing off the area being tested, it ensures accurate pressure readings and prevents leaks or pressure loss from affecting the results.
- To comply with regulations, many industries adhere to strict regulations governing the maintenance, repair, and testing of piping systems. Using a purge blind as part of these processes helps ensure compliance with regulatory requirements and industry standards for safety and environmental protection.
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Frequently Asked Questions
Our standard thickness is 1/2" with 1/4" milled slots.
We can manufacture hydrotest EZ Purge blinds that will withstand hydrotesting, but our standard blinds are designed for isolation only. Please let us know at the time you're ordering, and we can increase the thickness of the non-purged side to withstand hydrotesting.
Yes, but if you want them much deeper, we will suggest the total thickness of the blind to be increased.
Yes, what you're asking for is our EZ Vent-Purge® blind that combines both the EZ Vent and EZ Purge benefits into one specialty blind.
Carbon steel blind handles are painted to match the standard flange rating colors. All of our slip blinds are indent marked and polished to smooth edges.
We have designed our EZ Purge blind to have an effective purge area of 50% to prevent damage of the gasket surface.
Yes. Our proprietary design allows you use this blind with or without a gasket on the purge side. This will not affect the amount of purge flow.
Yes. We can do both machined 125-250 rms finishes and RTJ male or female surfaces upon request.