A double compression cable gland is a tool used to connect and protect electrical cables. It helps stop water, dust, or gas from entering the equipment where the cable is connected. These glands are used for both armored (metal-covered) and unarmored cables.
The name “double compression” comes from the two layers of sealing:
- Outer compression on the cable’s outer covering (sheath)
- Inner compression on the cable’s inside insulation
This double layer of protection makes the connection stronger, safer, and suitable for rough conditions like outdoor areas or factories.
Double Compression Cable Gland Size Chart
Choosing the correct size is important. Below is a size chart to help you match your cable with the correct gland:
| Cable Dia From (mm) | Cable Dia To (mm) | Thread Size | Product Code |
|---|---|---|---|
| 16.50 | 18.50 | M20x1.5 | HCGW-01 |
| 18.50 | 20.00 | M25x1.5 | HCGW-02 |
| 20.00 | 23.00 | M25x1.5 | HCGW-03 |
| 23.00 | 26.00 | M32x1.5 | HCGW-04A |
| 26.00 | 30.00 | M32x1.5 | HCGW-05 |
| 30.00 | 33.00 | M40x1.5 | HCGW-06 |
| 33.00 | 37.00 | M40x1.5 | HCGW-07 |
| 41.00 | 46.00 | M50x1.5 | HCGW-09 |
Double Compression Cable Gland Parts Name
To fully understand how a double compression cable gland works, it’s helpful to know each part and what it does. Below is a simple breakdown of all the important components, explained in plain language:
Brass Check Nut :
This is the first locking part that holds the gland in place once it’s inserted into a panel or equipment. It prevents the gland from loosening or turning during cable movement
Rubber Washer :
This small, flexible ring acts as a barrier against dust, dirt, and moisture. It adds an extra layer of protection between the gland and the surface it is installed on.
Brass Gland Body :
This is the main outer housing of the cable gland. It supports all the other parts and serves as the body that threads into the electrical enclosure. It is built from brass for strength and corrosion resistance.
Rubber Inner Seal :
Located inside the gland, the inner seal compresses around the inner insulation of the cable when the gland is tightened. This prevents any gaps inside the cable and blocks entry of moisture or gases.
Brass Armour Clamping Cone :
This cone-shaped part is specifically used for armored cables. It helps spread the metal armor wires evenly around the gland to ensure proper contact and strong holding.
Brass Armour Clamping Ring :
The clamping ring fits over the armor cone and presses the armored wires into place when the gland is tightened. This ensures that the armor doesn’t slip and that electrical continuity is maintained.
Brass Armour Clamping Nut :
This nut tightens over the clamping ring to lock the armored wires securely into the gland. It also ensures a strong mechanical grip and electrical connection for earthing purposes.
Rubber Outer Seal :
This seal compresses around the outer sheath of the cable. It provides weatherproofing and prevents moisture, dust, or chemicals from entering the gland body.
Brass Compression Nut :
This is the final part you tighten during installation. When rotated, it applies pressure to all internal parts and ensures a secure, double-layered compression on the cable.
Advantages of Double Compression Cable Glands
Explosion Safety :
These glands help stop sparks or flames from escaping. That’s important in places where gas or flammable materials are present.
Water and Dust Resistance :
The double seal keeps water, dust, and other dirt out. This protects the equipment and cable from damage.
Strong Grip :
Because the gland holds the cable from both outside and inside, it stays firmly in place even in high vibration areas.
Long Life :
Made from high-quality brass and coated with nickel, these glands don’t rust easily and work well for years.
Earthing Support :
If you’re using armored cables, these glands also help connect the cable safely to the grounding system.
Saves Money :
By protecting your system from damage, you reduce repair costs and downtime.
Features of Our Weatherproof Double Compression Cable Glands
Here are the key features of the glands we manufacture:
Double Sealing Mechanism :
Our glands apply compression to both the outer sheath and the inner core of the cable. This double-layered sealing helps keep moisture, dirt, oil, and gas away from sensitive electrical connections.
Made from High-Quality Brass :
We use brass with nickel plating for durability. This prevents corrosion and ensures your gland lasts for years even in harsh climates. We also offer SS 304 and SS 316 options for marine-grade use.
IP67 Ingress Protection :
Rated IP67, our glands provide complete protection against dust and can withstand immersion in water up to 1 meter for short periods — making them ideal for outdoor panels and junction boxes.
Easy to Install and Remove :
The clamping cone and armor grip are designed for quick installation and easy maintenance. This saves time during installation and future servicing.
Suitable for Armoured and Unarmoured Cables :
Whether you’re working with armored cables (SWA, STA) or standard unarmored cables, our glands can handle both with ease. We manufacture all major thread types Metric, PG, NPT, ET, and BSP.
Range of Sizes Available :
We offer a complete size range from 16 mm to 100 mm+ with customized solutions available for large orders or project-specific requirements.
Environment-Ready :
They perform reliably in environments with humidity, salinity, acid fumes, oil mist, and extreme temperatures helping you maintain uptime and safety standards.
Why Choose Exgrip as Your Cable Gland Manufacturer?
As a leading cable gland manufacturer in India, we understand that quality, consistency, and delivery matter. Here’s what sets us apart:
- In-House Manufacturing using CNC machines for precision
- Bulk production capability with custom labeling and export packaging
- Customization options for thread type, seal material, or finishes
- Strict quality control checks before dispatch
- Serving global markets in the Middle East, Africa, Europe & Asia
We work with OEMs, contractors, solar EPC companies, panel builders, and resellers to supply cable glands that meet both technical and commercial expectations.
Final Thoughts
When it comes to securing cables in industrial or outdoor setups, double compression cable glands offer unbeatable protection. From mechanical strength to sealing efficiency, they’re the go-to choice for professionals in power, oil, manufacturing, solar, and construction industries.
Whether you’re wiring a small outdoor unit or a large substation, choosing the right gland isn’t just about size it’s about reliability, durability, and long-term safety.
At Exgrip, we don’t just sell products we build trust. With our weatherproof double compression cable glands, you get tested performance, high-quality materials, and expert support every time.
|📞 Need Help?
Contact us today for bulk orders, technical queries, or to request samples.
👉 Visit: www.exgrip.com
📧 Email: Info@exgrip.com
📞 Phone: +91 9537118899 / +91 9537228899
Frequently Asked Questions (FAQs)
1. What is a double compression cable gland?
Answer: A double compression cable gland provides sealing at both the inner and outer cable sheath, offering better grip and safety for armoured cables.
2. What are the parts of a double compression gland?
Answer: The main parts include the gland body, compression nut, cone, armour ring, washer, rubber seal, and entry threads.
3. Where are double compression cable glands used?
Answer: They’re used in outdoor and hazardous environments, ideal for industries like oil, gas, power, and chemical plants.
4. What is the size chart for double compression cable glands?
Answer: The double compression cable gland size chart shows gland types, thread sizes, cable range, and dimensions for correct selection.
5. How do I match cable size with a double compression gland?
Answer: Refer to our double compression cable gland size chart with cable size to find the right gland for your cable’s outer diameter.
6. Are double compression glands only for armoured cables?
Answer: Yes, double compression cable glands are made for armoured cables, providing mechanical grip and flameproof sealing.
7. What is the benefit of using a double compression gland?
Answer: It offers higher sealing strength, better environmental protection, and is safer for hazardous area installations.
8. What sizes do double compression cable glands come in?
Answer: Sizes range from M16 to M100 or more, covering cable diameters from around 6 mm up to 90 mm depending on the type.
9. Is there a standard for double compression gland parts?
Answer: Yes, the parts follow IS/IEC standards and are typically made from brass, stainless steel, or aluminum depending on application.
10. Where can I download the full double compression gland size chart?
Answer: You can view or download the complete double compression gland size chart with dimensions and cable size from our blog page.
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