How to Choose the Right Size and Specification of Stainless Steel Cable Gland?

How to Choose the Right Size and Specification of Stainless Steel Cable Gland?

Stainless steel cable gland are essential components for protecting cable entry points in industrial equipment. They offer strong mechanical protection, waterproof sealing, and excellent corrosion resistance — especially in harsh and outdoor environments. But selecting the correct size and thread specification is critical to ensure safety and long-term performance.

This guide will help you quickly understand how to choose the right Stainless Steel Cable Gland for your project.


✅ What Is a Stainless Steel Cable Gland?

A stainless steel cable gland (also known as stainless steel cable connector) is designed to:

✔ Secure the cable
✔ Prevent dust, water, and oil intrusion
✔ Provide strain relief
✔ Maintain system safety in vibration and high-temperature environments

They are widely used in:

  • Electrical control panels
  • Marine and offshore equipment
  • Oil & gas and chemical processing plants
  • Automation and industrial machinery

✅ SS304 vs SS316: Which Material Should You Choose?

Stainless steel cable glands are mostly manufactured using 304 or 316 stainless steel.

MaterialCorrosion ResistanceApplicationCost
SS304GoodGeneral industriesAffordable
SS316Excellent (saltwater & chemicals)Marine / Oil & Gas / Coastal areasHigher

📌 Recommendation:
If your application involves saltwater, acids, or chemical exposure, choose SS316 Stainless Steel Cable Glands for better durability.


✅ Types of Thread Standards: How to Select the Correct One?

Choosing the correct thread type ensures full compatibility with equipment.

Thread StandardRegion / IndustryFeature
Metric (M)Europe, AsiaStraight thread
NPTUSA, CanadaTapered thread, stronger sealing
PGOlder German standardNow less common
G (BSPP)UK and Middle EastParallel thread

Tip:
📩 If you are unsure about your equipment thread, send the male/female interface info — we can match for you.


✅ Match Cable Outer Diameter (OD) — The Most Important Step

Each cable gland has a clamping range.
If the cable OD is too small — not waterproof
If too large — installation may fail or damage the cable

Example:

  • Cable OD: 10mm
  • Choose gland size ≥ 10mm and ≤ 12mm sealing range (e.g., M20)

Common industry sizes:
M12 / M16 / M20 / M25 / M32 / M40 / M50 / M63

Sealing inserts available:

  • EPDM (standard)
  • Silicone (high temperature)
  • Viton (chemical resistance)

✅ Do You Need Armored or Explosion-Proof Cable Glands?

Ask yourself two questions:

1️⃣ Is the cable armored (SWA/STA)?
✔ Choose armored cable gland

2️⃣ Is the installation area hazardous?
✔ Choose explosion proof stainless steel cable gland
✔ Certifications: ATEX / IECEx / UL


✅ Understanding IP67 / IP68 Protection Level

RatingProtection
IP67Water immersion up to 1m
IP68Long-term underwater protection, deeper conditions

For outdoor cables exposed to salt spray, sun, and rain → choose IP68 Stainless Steel Cable Glands


✅ Installation Tips: Avoid Leakage and Thread Damage

✔ Apply PTFE/Teflon tape for NPT threads
✔ Use correct tightening torque
✔ Ensure no cross-threading
✔ Keep sealing surface clean and flat

This ensures stable sealing performance and long-term reliability.


✅ Work With a Reliable Cable Gland Manufacturer

Choosing a trustworthy supplier helps you avoid quality risk in engineering projects.

We can support you with:
✅ Full range thread standards: M / NPT / G / PG
✅ SS304 / SS316 materials
✅ Bulk B2B supply for industrial projects
✅ OEM & customized marking
✅ Fast delivery & technical selection support


To choose the right Stainless Steel Cable Gland, remember these key factors:

Selection FocusDescription
Thread StandardMatch equipment port (M / NPT / PG / G)
Cable ODFit the clamping range
MaterialSS316 for harsh environment
FunctionArmored / Explosion-proof if required
Protection LevelIP68 recommended for outdoor

FAQ

How do I choose the correct size of a Stainless Steel Cable Gland?

Match the cable outer diameter (OD) with the gland’s clamping range.
If the cable OD does not fit the range, sealing performance will be reduced.

What is the difference between SS304 and SS316 cable glands?

SS316 offers better corrosion resistance against saltwater and chemicals, ideal for marine and offshore applications.
SS304 is suitable for general indoor and industrial environments.

Do you offer Armored Stainless Steel Cable Glands?

Yes. We supply glands for both armored and unarmored cables, including explosion-proof options for hazardous areas.

Can Stainless Steel Cable Glands achieve IP68 waterproof protection?

Yes. With proper installation and correct cable fit, our stainless steel cable glands can meet IP67/IP68 protection levels.

Related Posts

Understanding NPT Thread in Stainless Steel Cable Gland

Understanding NPT Thread in Stainless Steel Cable Gland

Stainless steel cable gland play a key role in cable entry protection for industrial equipment. They ensure a secure connection, seal out dust and moisture, and provide excellent strain relief. When selecting a cable gland, the thread type is one of the most important considerations — especially for markets that follow American standards. That’s where […]

Read More
What makes cable gland stainless steel special?

What makes cable gland stainless steel special?

Cable gland stainless steel is more than a protective housing for electrical cables. It represents a blend of durability, reliability, and precise engineering that keeps critical systems performing under demanding conditions. Whether you’re designing offshore equipment, mining machinery, or industrial automation, choosing the right cable gland made from stainless steel can simplify maintenance, improve safety, […]

Read More
What Is a Stainless Steel Cable Gland?

What Is a Stainless Steel Cable Gland?

Stainless steel cable gland are essential components used to securely attach and seal cables to electrical equipment. They protect cables from mechanical stress and environmental hazards such as moisture, dust, and chemical exposure. Unlike glands made from plastic or brass, stainless steel cable glands offer superior durability, corrosion resistance, and strength, making them ideal for […]

Read More