How to Select the Right Cable Gland: A Step-by-Step Guide

Table of Contents

How to Select the Right Cable Gland: A Step-by-Step Guide

The Problem: Choosing the Wrong Cable Gland

Do you worry about picking the wrong cable gland? Many people do. Bad cable glands can cause big problems. They can let water in. They can make wires break. They can even start fires!

When you pick the wrong cable gland:

  • Water gets in your boxes
  • Wires get damaged
  • Your work does not pass tests
  • You waste money fixing it all

Why This Hurts Your Business

Think about what happens when a cable gland fails. Your whole project stops! Your boss gets mad. Your customers get upset. You lose time and money.

Did you know that 45% of all cable problems come from picking the wrong size? And 30% come from picking the wrong material? That means most cable problems could be stopped if people knew how to pick the right cable gland!

The worst part? You might not know you have a problem until it’s too late. Water damage takes time to show up. By then, the fix costs 5 times more!

brass G cable gland size

The Solution: CAGLAND’s Custom Cable Glands

Good news! CAGLAND makes high-quality cable glands in China. We can make any kind you need. Our cable glands:

  • Keep water out
  • Hold cables tight
  • Last a long time
  • Cost less than others
  • Ship fast to you

Now, let’s learn how to pick the right cable gland so you never have these problems again!

1. Know Your Cable Types

First, you need to know what kind of cable you have.

Single-Core vs. Multi-Core Cables

Do you have single-core cables? These need aluminum glands. Why? Because other metals can get too hot.

Do you have multi-core cables? Most metal glands work fine for these.

Armored vs. Non-Armored Cables

Armored cables need special glands that hold the armor tight. Our metal water proof cable gland is perfect for these jobs!

See this table:

Cable TypeBest Gland TypeWhy It Works
Single-coreAluminumStops overheating
Multi-coreBrass or NylonGood all-around choice
ArmoredMetal with clampHolds armor tight
ShieldedEMC typeStops signal noise

2. Measure Your Cable Size

Size matters! The number one reason cable glands fail is wrong size.

How to Measure:

  1. Take your cable
  2. Use a tape measure
  3. Wrap it around the cable
  4. Write down the size

Size Chart:

Cable Size (mm)PG ThreadMetric Thread
3-6.5PG7M12
6-12PG13.5M20
12-18PG21M25
18-25PG29M32
25-33PG36M40

Remember: Never use tape to make a cable fit. This breaks rules and makes unsafe setups!

3. Think About Where Your Cable Goes

Where will your cable gland be used? This matters a lot!

Indoor vs. Outdoor

For outdoor use, you need impermeabile glands. Our plastic water proof cable gland works great outdoors!

IP Rating Guide

PlaceIP Rating NeededWhat It Means
Inside dry buildingIP54Dust and splash proof
OutsideIP66 or IP67Rain and dust proof
Under waterIP68Can stay under water
Food plantsIP69KCan handle hot spray

Did you know? IP68 glands stop water problems 95% better than standard glands!

4. Check For Danger Areas

Some places have gases that can blow up! These need special glands.

Danger Area Types:

  • Gas stations
  • Oil rigs
  • Flour mills
  • Chemical plants

For these places, you need ATEX or IECEx certified glands. These stop sparks from making big fires!

Safety fact: The right explosion-proof glands cut danger by 80% in risky areas.

5. Pick The Right Thread Type

Threads must match your box or plate!

Common Thread Types:

  1. PG threads – Used in 40% of Europe jobs
  2. Metric threads – Used in 55% of machine jobs
  3. NPT threads – Used in North America

Tip: Look at your box first. Then pick a gland with the same thread.

metal G cable gland size

6. Choose The Right Material

Materials matter for how long your gland lasts!

Material Guide:

MaterialeGood ForBad For
BrassMost indoor/outdoor jobsVery salty air
PlasticCost saving, light weightVery hot places
Stainless SteelFood, chemical, saltCost (30% more)
AluminumSingle core cablesWet areas

Interesting fact: Brass glands are used in 60% of all industrial jobs because they last so long!

7. Special Needs For Special Jobs

Some jobs need special glands.

Multiple Cables

Need to run many small cables through one hole? Our pressacavo multiforo solves this problem!

EMI Protection

Working with control systems or motors? You need EMI shielding glands to stop signal problems.

8. How To Install Cable Glands The Right Way

Picking the right gland is just step one. You also need to put it in right!

Simple Steps:

  1. Cut your cable to the right length
  2. Put the parts on in the right order
  3. Tighten to the right force (25-30 Nm)
  4. Use grease on the seals for wet areas

Did you know? Putting grease on seals makes them 50% better at stopping water!

9. Common Mistakes To Avoid

People make these mistakes all the time. Don’t be one of them!

Big Mistakes:

  • Using the wrong size: This causes 45% of all failures
  • Picking the wrong material: Causes 30% of problems
  • Not tightening enough: Leads to 15% of leaks
  • Thread mismatch: Makes 10% of glands fail

Warning: Never use tape or glue to make a gland fit! This breaks safety rules.

10. Why Choose CAGLAND Custom Cable Glands

At CAGLAND, we make cable glands that solve all these problems!

What Makes Us Better:

  • Custom sizes: We make any size you need
  • High quality: All glands tested before shipping
  • Fast delivery: Get your order quickly
  • Low prices: Save money without losing quality
  • Expert help: We help you pick the right gland

We’ve helped companies fix their cable problems for years. Our cable glands are used in big projects all over the world!

plastic PG cable gland size

Real Life Success Stories

Case 1: Data Center Fix

A big data center had 300+ cables to manage. They used our color-coded glands. This cut their fix time by 40%!

Case 2: Offshore Oil Platform

An oil platform needed to stop salt water damage. They used our stainless steel IP68 glands. After 5 years: zero failures!

Case 3: Factory Motor Controls

A factory had problems with motor controls. Our EMI shielding glands cut signal noise by 90%!

How To Order Custom Cable Glands From CAGLAND

Ready to get the perfect cable glands for your job? It’s easy!

  1. Measure your cables
  2. Note your thread needs
  3. Think about where they’ll be used
  4. Contact CAGLAND with these details
  5. Get a free quote fast!

FAQ About Cable Glands

Q: Can I use the same gland for armored and non-armored cables? A: No! Armored cables need special glands that hold the armor.

Q: How do I know if my area is “hazardous”? A: If there might be gas, dust, or chemicals that can catch fire, it’s hazardous.

Q: Can I reuse cable glands? A: We don’t suggest this. Seals wear out and might not work right.

Q: What’s the difference between IP67 and IP68? A: IP67 can handle being in water briefly. IP68 can stay underwater all the time.

Conclusion: The Right Cable Gland Makes All The Difference

Picking the right cable gland stops big problems before they start! With CAGLAND’s custom cable glands, you get:

  • Perfect fit for your cables
  • Long-lasting protection
  • Safe, reliable connections
  • Big savings on time and money

Don’t let bad cable glands ruin your hard work! Choose CAGLAND for all your cable gland needs.

Need a full wiring solution? Check out our scatola di giunzione products too!

Visit CAGLAND today to see all our high-quality cable gland options.

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