DYK 2019-006
By Chad Koens

Did you know that gas flames produce infrared radiation?

Gas flames produce infrared radiation, which may have a harmful effect on the skin and especially on the eyes. Proper eye protection is vital to prevent permanent retinal damage.

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solder image
By Christen Foltz

Did you know that you can solder an HVAC connection?

Did you know low-temperature tin/silver solders have higher strength and ductility than typical plumbing solders? This makes them suitable for most residential HVAC connections.

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Hose blog image
By Doug Perry

What is the difference between A, B and C welding hoses?

This blog looks at the difference between welding hose - hose size, connection size, and gas usage.

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Cutting with a Harris torch
By Harris Products Group

Will a Check Valve stop a Flashback?

A flashback is an uncontrolled flame that recesses back into your oxy-fuel gas equipment, upstream of the location where the gas is designed to mix. In order to have a flashback you must have oxygen and fuel mixed together.

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Harris two-stage regulator
By Harris Products Group

Two-Stage Regulators

The basic function of a gas pressure regulator is to reduce unusable high pressure from the source to a lower usable delivery pressure. Two-stage regulators are designed to lower the high pressure in two stages. They require less readjustment and provide a more constant delivery pressure despite changes in inlet pressure. They are exceptionally well suited for high pressure cylinder applications.

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Pipeline regulator with gas cutting torch
By Harris Products Group

What's the Difference between a Pipeline and Station Regulator?

There is little difference between a pipeline regulator and station regulator other than the inlet fitting. Learn the reasons why this change was implemented, and how it keeps you safe.

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Applying brazing flux
By Bob Henson

Five misconceptions about flux

At The Harris Products Group, we sell a lot of brazing and soldering alloys. Over the years we’ve noticed some misunderstandings about the importance of flux in producing a quality brazed joint. This blog entry explores the five most common misconceptions about flux.

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How Brazing Works
By Bob Henson

How Brazing Works - Capillary Action

One of brazing's attributes is the ability of melted filler metal to flow between parts to produce a strong, leak-proof connection. This effect, capillary action, enables braze penetration between two surfaces. It makes it possible to join pipe or tube in the horizontal position and, despite gravity, in the vertical "up" position.

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Harris Bridgit solder image
By Bob Henson

When Lead Went Dead

The use of lead to convey drinking water dates to the Roman Empire (the word plumber comes from the Latin name for lead- "plumbum", hence its chemical symbol – Pb). Not surprisingly, the use of lead bearing solders to join copper water lines was the accepted approach for decades. By far the most common lead-bearing plumbing solder was 50/50 (nominally 50% tin and 50% lead).

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