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Frequently Asked Questions About Blind Flanges, Paddle Blinds & Custom Machining Services

At Hydro Blind Solutions, we prioritize providing our clients with the best solutions for their pipeline needs. While this page addresses some of the most commonly asked questions about our products and services, we understand that additional inquiries may arise.

Our team of experts is committed to being available 24/7 through our call-out services to promptly address any concerns and offer guidance on topics related to flanges, paddle blinds, and more.

What Materials Can Oxyfuel Cut?

Oxyfuel will deliver a highly accurate, clean cut, but it is only suitable for use with ferrous materials, including carbon steel.

However, it is not suitable for use with stainless steel or aluminum. It can cut through materials that are a maximum of 4 inches thick.

Are Spacer Rings Custom Manufactured?

In most cases, spacer rings are custom designed and produced. Because of the unique qualities and pipe sizes, custom manufacturing ensures that gaps are properly compensated and that any misalignments are corrected.

What Is the Main Difference Between Blind Flanges and Paddle Blinds?

While both blind flanges and paddle blinds serve the purpose of blocking flow within a pipeline, they differ in their design and application. Blind flanges are solid disks with gasket sealing rings machined directly into the mating surface, providing a permanent solution.

Paddle blinds, on the other hand, are temporary solutions that can be easily inserted and removed from the pipeline as needed. Paddle blinds also come in vented versions to relieve line pressure and facilitate testing.

What Are Spectacle Blinds?

Spectacle blinds consist of two round plates connected with a steel bar in the center. The finished assembly resembles a pair of glasses, hence the name.

A solid plate is on one side of the assembly, while the other side has an opening to facilitate flow.

Can Spacers Be Removed and Replaced With Paddle Blinds?

Absolutely. When you want to shut the flow off within a pipe, spacers can be removed and replaced with a paddle blind.

How Can Vented Paddle Blinds Help My Business?

Vented paddle blinds, also commonly known as bleeder blinds, slip blinds, spade blinds, or ported blinds, are safe and reliable solutions that give you greater control over your operations.

You can use them to verify or relieve line pressure, facilitate access for hydro testing or hydrocarbon/gas testing, bleed or drain lines, and more.

How Do I Choose Between a Blind Flange and a Paddle Blind for My Application?

The choice between a blind flange and a paddle blind depends on your specific requirements and the intended use. If you need a permanent solution for sealing a pipeline, a blind flange is the ideal choice. If you require a temporary solution for isolating a section of the pipeline for maintenance, testing, or repairs, a paddle blind is the better option.

Consider factors such as the duration of the blockage, pressure requirements, and ease of installation and removal when making your decision.

What Industries Typically Use Vented Paddle Blinds?

Because of their versatility, vented paddle blinds are widely used in a variety of industries, including:

  • Refineries
  • Pipelines
  • Oilfields
  • Manufacturing facilities
  • Offshore oil drilling
  • Liquefied natural gas production
  • And more

What Are Blind Flanges?

Blind flanges consist of solid disks made of carbon steel or stainless steel that are highly effective at blocking off a pipeline. They feature gasket sealing rings that are machined directly into the mating surface.

This creates an impenetrable seal that prevents fluid from passing through, thus making blind flanges an ideal solution for blocking flow within a pipeline.

Is It Worth the Investment To Install Blind Flanges?

Blind flanges are a cost-effective method of sealing pipes. They reduce the time and resources required to perform repairs and other maintenance tasks.

They can also be used to temporarily seal a pipe until the expansion or continuation works can begin.

What Custom Machining Services Do You Offer?

We are experts at cutting through a wide range of materials for our clients. Our custom machining services include:

  • Drilling and tapping
  • Flange refacing
  • Taper boring
  • Reducing flanges
  • Custom pipe nipples
  • And more!

Do you have more questions about flanges, paddle blind rental, CNC cutting, or oxyfuel cutting?

Contact Hydro Blind Solutions online at 409-736-7665, and we will be happy to give you the answers you need to make the best decision for your business!