“It’s Leaking Again” – Those Dreaded Words
Whether you’re in the water treatment, chlorine, or bottled gases industry, few words cause the same sense of dismay as those three. The natural inclination is to blame the sealant, but in many cases, the sealant is not to blame.
Fluoramics has done a fishbone analysis on the causes of leaks, and we will break down the elements in this eight-part series.
- Low-Cost, Low-Quality Fittings
- Fitting Material Selection
- Cracked Plastic Fittings
- Tape or No Tape, Type of Tape
- Cold Flow
- Repairs & Maintenance
- Gas Attack & Chemicals
- Type of Thread Sealant
Today we will be focusing on part one: Low-Cost, Low-Quality Fittings
When it comes to plumbing and piping systems, choosing the right parts is crucial for ensuring long-term reliability and performance. One often overlooked aspect is the quality of pipe thread fittings. While it might be tempting to opt for low-cost options to save money upfront, this decision can lead to significant problems down the line.
Low-cost fittings often come with less precise manufacturing standards, leading to threads that don’t fit together properly. This creates gaps or misalignments that allow fluids to leak through. The thread pattern of a fitting is crucial for creating a proper seal. Higher quality fittings typically follow higher standards, ensuring consistency and reliability.
Similarly, cheaper fittings are also often made from lower-quality materials that are more prone to corrosion, wear, and damage. Low-cost fittings may have rough or uneven surfaces that prevent the threads from mating correctly, leading to potential leak paths. They also may not be able to withstand the high pressures and stress of the systems they are installed in.
Cheap fittings may not be compatible with other components of the system, leading to improper connections and potential leaks. High-quality fittings are designed to be compatible with a wide range of components, therefore reducing the risk of leaks.
Poor Casting
Another significant factor in the quality of threaded fittings is the casting process. Low-cost fittings often have poor casting, which can lead to several issues that increase the chance of leaks.
Poorly cast fittings may have inconsistent wall thickness, leading to weak spots in the fitting. These thin sections are more prone to cracking or deforming under high pressures. Cheap casting methods often result in porous fittings, where tiny air pockets form during the manufacturing process. These pores weaken the structure and can cause leaks over time. Similarly, poor casting can lead to microcracks that may not be visible right away, but can grow over time, especially when exposed to pressure and temperature changes.
A smooth and even surface is essential for the threads to mate properly and create a leak-free seal. Low-cost fittings with poor casting may have uneven surfaces that hinder thread engagement, leading to improper sealing and leaks.
Choose Quality
While it may be tempting to save money by opting for low-cost pipe thread fittings, the potential for leaks and damage outweighs the initial savings. Investing in high-quality fittings ensures precise manufacturing, superior materials, consistent thread patterns, adequate surface finishes, and compatibility. By choosing quality, you can prevent leaks and ensure the long-term reliability of your plumbing and piping systems. So, before blaming the sealant, ask yourself if the fittings you’re using could be the culprit to your leaks.
Check for Leaks
One of the safest ways to check for leaks is to apply soapy water to the assembly and slowly pressurize. If you see soap bubbles, you know you have a leak. Examine where the bubbles are coming from. Look carefully at the piping and joints for cracks. Common problem areas are the seams, valve stems, main connections, hose connections and bleed screws, when applicable. If the bubbles appear to come from the joint, take the joint apart to make sure there is enough sealant in the threads to form a perfect seal.
Use Fluoramics Sealants
Assuming you’ve found the source of your leaks, Fluoramics’ sealants are an excellent option to ensure no further leaking.
- LOX-8 Thread Sealant is highly recommended where oxygen or harsh chemicals such as chlorine or powerful oxidizers are present. It is the product of choice in applications where critical safety and resistance to aggressive chemicals are primary requirements. Providing superior performance as a sealant and anti-galling agent, LOX-8 withstands both high extreme temperatures and high pressure.
- Formula-8 seals threads in gas, liquid and vacuum service. Oxygen-safe and NSF-approved for food processing facilities, Formula-8 is a water-based thread sealing compound compatible with hydraulic oils and systems, pvc piping, cryogenics, and high temperatures. This sealant works by wetting into and sealing threaded joints when torqued and is engineered to seal over the entire thread length for the life of the joint in liquid, gas, and vacuum service.
If you haven’t found the source of your leaks, stay tuned for the next edition of Don’t Blame the Sealant where we will be discussing Fitting Material Selection.
Shop LOX-8 Thread Sealant now> LOX-8 Thread Sealant
Shop Formula-8 Now> Formula-8
