Rayphen Compression Cable Gland

Rayphen compression cable glands can be flame-proof cable glands and weather-proof cable glands. You can find from Rayphen the different parts of the compression cable gland. Depending on your specific applications, you can choose whether skid washer, armor clamping ring & armor clamping clone, washer, lock nut, nipple entry thread, and main gland body.

Rayphen compression cable gland is suitable for steel wire armored (SWA), steel wire braid (SWB), aluminum wire armored (AWA), and steel tape armored (STA). In addition to this, you can use Rayphen compression cable gland in the following applications:

• Ex d, Ex e, and Ex tb applications
• control panel & junction box
• light fixture and housing
• dust zones 21, 22 and gas zones 1,2
• heat tracing
• machine building

You can find Rayphen compression cable gland according to different sizes, types, and surface treatment. According to cable specification, We have a metric type, G type, NPT type, etc cable gland. and our compression cable gland’s design can be customized.

Whether it is a single compression cable gland or a double compression cable gland, We can accept customization. The cable gland double compression type and single compression type are suitable for unarmoured and armored cable.

As a leading compression cable gland manufacturer and supplier in China, Rayphen has more than 10 years of experience in the marketplace. Our cable gland range includes metal cable gland, compression cable gland, brass cable gland, waterproof cable gland, stainless steel cable gland, flexible cable gland, etc.

You can trust our quality because Rayphen cable glands including compression cable glands have qualified by ROHS, CE, and IP68 waterproof certifications.

Rayphen has an exceptional design team, superior die casting technology, top-class polishing technology, superb surface treatment technology, and a professional packaging team and QC inspection.

For more information about Rayphen compression cable gland, please get in touch with our sales representatives now!

The Ultimate FAQ Guide on Compression Cable Glands

The demand for compression cable glands has increased multiple folds in the last decade particularly with the tremendous advancements experienced in the electricity, mechanical and structural industries. With this demand comes the need to comprehend the structural and functional elements of the compressional cable glands.

Please read on to get a clear image of everything you MUST know about compression cable glands and their applications in diverse settings:

Q1. What Is A Compression Cable Gland?

                                                        Figure 1: A compression cable gland

A compression cable gland could simply be described as “a mechanical access device”. Putting the simple definition aside, the compression cable gland could be given the general description as a device that is used to form an attachment to the terminal of an electric cable to secure its connection to the targeted equipment.

In essence, compression cable glands are also referred to as compression cable connectors, compression strain fittings, compression cord grips, or compression cable fittings. They are majorly used in cables with diameters ranging between 1milimeter and 75 millimeters. Similarly, compression cable glands have the ability to:

• Initiate electrical connectivity to the braid and aluminum sheath of a cable
• Avail strain relief in electric cable connections
• Provide strain relief in cable-device connections

Q2. How Does A Compression Cable Gland Work?

                                                 Figure 2: The Working mechanism of a compression cable gland

It is easy to know how a compression cable gland works by understanding its structural mechanisms first. In essence, a compression cable gland is made by initiating a structural combination of a central body/enclosure that will allow the passage of the necessary cabling with a range of attachments.

A typical compression cable gland will come as a typical lock nut with washers, an attachment cone (or claw), and an outer compression (or sealing) nut. In other cases, some manufacturers will present models that come with two-part enclosures, insulation, and a tag for electrical earthing.

Looking at the parts outlined, compression cable glands may work in diverse applications for operations like:

• Electrical earthing- Your compression cable glands could be highly effective in withstanding any form of peak sort and circuit fault currents.
• Strain relief- The compression cable gland works to ensure that only the recommended level of strain is allowed.
• Additional sealing- your compression cable glands will offer an additional layer of sealing in electrical connections that need optimal ingress protections.
• Electrical grounding
• Electricity insulation
• Electricity bonding

Similarly, compression cable glands have the structural ability to repel and cushion your cables from external contaminants like electrical sparks, flames, fluids, clouds of dust, and other forms of dirt at the junction connecting the cable to the targeted electrical device.

Here’s the summary of the principal functions of compression cable glands:

• Compression cable glands may come in handy when there’s a need to fix cables in place and offer protection against mechanical twisting effects and accidental pullouts from the targeted electrical devices.
• Fortification of cables against mechanical strains
• Provision of airtight seals that will help keep out external agents like dust, moisture, water, and dust particles.
• Offering the vulnerable ends of the connected cable from damages
• In other instances, compression cable glands could be useful in operations that require earthing electrical cables and help in cutting the risks of electrocutions and electric shocks.

Ultimately, the major role of compression cable glands is to stop your cables from the pulling and twisting interferences that are manifested when individuals interact with electric devices. This is essential because of their ability to avail of a safe and stable connection between the electric device and the cable.

Q3. What Are the Different Elements of a Compression Cable Gland?

                                                             Figure 3: Elements of a compression cable gland

Here are the different elements of compression cable glands:

• A compression cable gland body
• A compression cable gland body nut
• A neoprene rubber seal that is meant to prevent the cable from oxidation, ozone action, and destructive effects associated with other petroleum derivatives
• A rubber washer prevents the distribution of vibrations from distributing from one side to the other thereby lowering noise
• A lock/ sealing nut is meant to ensure that the nut stays in place after installation.
• A flat washer – offers a flawless bearing surface.
• A compression seal fitting that used to close elements like pipe, wire, conductor, and cable
• An armor clamping ring and armor clamping cone tightens the metal to the metal surface enhancing reliability
• A sealing washer that is meant to protect the compression cable gland entry.

NOTE:  that a compression seal fitting, a sealing washer, an armor clamping ring, and an armor clamping cone are only found on a double compression cable gland.

Similarly, double compression cable glands may also come with cones and cone rings.

Q4. How Will You Differentiate Between Single and Double Compression Cable Gland?

                                                   Figure 4: Single (left) and double (right) compression cable glands

Single compression cable gland mainly offers compression at the cable armor thereby leaving scope for entry of moisture vapor and corrosives. It’s mostly used for lightly armored cables, suitable for use in an average climate, and offers a single seal at the outer sheath of the cable while double compression cable glands offer compression at both the cable armor and the inner sheath preventing entry of moisture vapor and corrosives to the cable. A double compression cable gland is consumed for heavy armored cables and is ideal for use in standard climate and offers a double seal at the cable armor and the inner sheath of the cable.

Q5. How Do I Select A Compression Cable Gland?

You needn’t go into a lot of hustles when selecting a compression cable gland that suits your needs. the market will offer you an array of compression cable glands; choosing the one that fits your application must be a major thing.

Here’s what to consider any time you want to select a compression cable gland that will meet your applications:

• The nature of the cable that your compression cable gland will be connected to
• The kind of material adopted in the manufacture of the compression cable gland
• Structural elements
  • The construction of the compression cable gland
  • The cross-sectional sizes
  • The finishing used on the compression cable gland and the cable under consideration (is your cable braided pr screened)
• The color requirements of the compression cable gland
• The intended function of the compression cable lug
  • Is it needed to offer mechanical protection?
• The desired location of the compressing cable lug
  • Are there any forms of magnetic resistances?
  • Does it present with restrictions on the installation space?
  • Are there any environmental considerations?
• Should the compression cable gland be water-resistant?
• Will it be applied in hazardous areas?
• Should the compression cable gland offer grounding or earthing properties?
• Will there be the need for the compression cable lug to be attached with a stopper plug to close off any of the unused cable entries?
• What are the size and depth metrics to be considered when buying the compression cable gland?
• How compatible is the compression cable gland with the material of the mating/housing element?
  • This plays a great role in vetting the levels of compatibility
• Will the unused cable entries make it a requirement for the installation of stopper plugs?

All these questions will act as essential guides in your pursuits of selecting a set of compression cable glands that will meet your needs and specifications. In particular, these five elements must act as irreducible minimums any time you initiate the compression cable gland selection process:

• The material used to manufacture the compression cable glands
• The type of cable to be inserted
• Size of the gland
• Thread specifications
• The level of ingress protection needed

Q6. How Many Types of Compression Cable Glands Are Available in The Market?

The engineering world has presented its customers with a multitude of compression cable gland options that allow the users to choose the kind that suits their needs. The type of compression cable gland you choose will greatly depend on the environment it needs to be installed. Here’s the list of the diverse compression cable types available in the market:

Brass indoor compression cable glands

                                                        Figure 5: Brass indoor compression cable gland

• Brass indoor compression glands are very effective for use on multiple types of cables- whether metallic, rubberized, or plastic.
• Their armor clamping comprises of a two-part armor lock
• Very effective for indoor applications particularly on all versions of SWA cables, sheathed cables, plastic, and rubber cables.
• They’re recommended for application with the shroud in cable-device connections that require ingress protection.

The brass outdoor compression cable gland

                                                        Figure 6: Brass outdoor compression cable gland

Most of the brass outdoor compression cable glands will be made from high-quality and stunning materials for application in outdoor environments and use with sheathed or unsheathed cables.

• They’re famously put to use with single wire armored
• It is recommended that the brass outdoor compression cable glands be used with PVC shroud to provide added ingress protection
• The outdoor brass compression cable gland will either be used with rubber or plastic-sheathed cables as they are highly effective in offering terminations and securing the outer seal grips and cable armoring to foster earthing continuity and effective mechanical strength.

Note: The brass outdoor compression cable gland can be used in both indoor and outdoor settings particularly with all kinds of SWA cables. The fact that these compression cable glands do not have loose parts makes it easy to initiate the installation process.

Brass straightening unarmored compression cable glands

Brass straightening unarmored compression cable glands are nickel-plated A2 type glands that may be effectively used with different types of unarmored and rubber sheathed cables. These types of glands are used alongside plastic insulated and unarmored elastomeric cables. Their sizes will range between 20 millimeters and 75 millimeters.

PG threaded compression cable glands

                                                          Figure 7: PG Threaded compression cable gland

PG Threaded compression cable glands are chrome plated and custom-made threaded for a wide range of industrial applications. They may come in round, hexagonal, or spherical shapes based on the client’s specifications.

Brass weatherproof compression cable lugs

                                                     Figure 8: Brass weatherproof compression cable gland

As opposed to the other types of compression cable glands, the brass weatherproof compression cable gland can be put to use with any type of SWA cable. It is highly famous for its ability to offer uninterrupted service after fixing the gland with the appropriate cables and cable components.

Q7. What Factors Must I Consider When Selecting A Compression Cable Gland?

You must be aware that the type of compression cable gland you choose will depend on a range of factors that may include:

• The kind of cable you desire to use with the gland
• The material used to manufacture the gland
• The gland size needed
• The thread specification of the application
• The type of ingress protection needed
• The type of environment in which the compression cable glands will be used
  • Are you going to use the compression cable glands indoors or outdoors?
  • Is the environment dusty or damp?
  • Will the compression cable gland be situated in an explosive, industrial or hazardous place?
  • Is the temperature of the area constant or does it fluctuate?
  • Are there any corrosive materials and gases near the point of installation of the compression cable glands?

Your answers will come in handy when determining the type of compression cable gland, you decide to use on your project. they will also help you decide whether you need your compression cable glands to have a special protective coating or plating.

Q8. How Do I Use A Compression Cable Gland?

You may use your compression cable glands in an array of settings (earthing, train relief, grounding, bonding, and insulation). In particular, your compression cable glands are essentially meant for use in cable management practices.  They are designed to secure and attach an electric cable with an electric device. You may also use compression cable glands to offer sealing for cables that penetrate through the bulkheads of the associated gland plates.

In some cases, compression cable glands will be used in hazardous and harsh environments to offer protection against electric sparks and repulsion of outside contaminants. In addition, these glands are very effective in offering continual performances in electric cables.

Q 9. Why Is Compression Cable Gland Earthing Required?

Have you ever suffered the effects of an electric shock when touching a connected electric device? Well, this could have been caused by a faulty electrical installation procedure that led to the exposure of a live metallic part. As such, the electric current took advantage of your body to form a path from the live area of the connection to the earthing location.

Earthing in compression cable glands offers protection against any forms of electric shocks that may result from exposures to cables. Your compression cable gland will initiate such protections by availing a path that will allow for the effective passage of fault current to earth. It may also cause the circuit breaker of the targeted electric device to switch off any electric current that is at fault.

Q10. Are Compression Cable Glands Waterproof?

                                                          Figure 9: Waterproof compression cable glands

Yes, some compression cable glands are custom-made to offer their waterproofing attributes among the targeted consumer segments. In particular, waterproof compression cable glands are meant to be used in connecting wires inside electronic enclosures that require effective maintenance of watertight seals in areas where the cable enters an insertion.

In most cases, waterproof compression cable glands will comprise a nut, a body, a cable seal, and a separate gasket. All these components are meant to be integrated into the compression cable gland’s body. In essence, a waterproof compression cable gland is assembled inside a circular cutout of the enclosure to capture the enclosure’s wall between the nut and the body. This creates a watertight sealing.

Q11. How Do I Fit A Compression Cable Gland?

You needn’t find a lot of problems the next time you want you’re sent of compression cable glands installed. The installation process is very easy and straight forward unlike other types of electric assemblies. Here’s the ten-step process that will come in handy the next time you want to install your set of compression cable glands:

Step 1: Decide on the type of steel used in the cable you want to fit.

• How many cores does the cable have?
• Have a clear determination of the exact size of the cable

Step 2: Review the gland pack

It is highly significant to check the compression cable gland packing before you start the installation process. This gives you the confidence that whatever you have is the gland that befits the cable of choice. Just ensure that the gland matches the actual cable you have adopted. Your gland pack will usually comprise of a pair of:

• Shrouds
• Earthing rings
• Locking nuts
• Gland bodies
• Gland nuts

Step 3: Get the required length of cable

Measuring the length of the cable needed for the installation process should come first before initiating the termination exercise. You’ll only need to use tape to mark the point where the cable should be cut.

Step 4: Fit the veil

This is where the real fitting process starts. It is at this point that you insert the shroud and insert it inside the end of the cable. Be keen to ensure that it is nice and firmly pulled.

Go forth and cut around the top while ensuring that the shroud maintains a proper fit with the SWA cable. Slide the gland down to the cable after initiating the cut.

Step 5:  Trim the cable

A junior hacksaw could be the best tool to use when cutting the cable at the region around the top of the tape you had used earlier. Just ensure that you follow the tape line the best you can when cutting. Do this with a lot of keenness not to damage the inside of the conductor.

Step 6: Eradicate the PVC

Use a knife to wind off the outer PVC covering by holding the cable firmly and running the knife along its length then remove it all.

Step 7: Take time to unwind all the wires outside the cable.

You may achieve this by giving the wire a gentle back and forth rock after the cord is unwound.

Step 8: Fix the gland nut

Here, you need to ensure that the threads of the gland are pointing outwards and analyze the length of the PVC that must be removed to ensure that the SWA is exposed. Be keen to ensure that only enough of the PVC is extracted and not more. Cutting about 10 centimeters below the tapped region could help.

Step 9: Insert the compression cable gland in the cable while ensuring that the serrated edge is down

You need to ensure that the thimble section of the compression cable gland drops inside the cable without moving beyond the thread then wind the body of the gland with open gland nuts. This is the time to drop the gland below the SWA. However, you need to ensure that the attachment presents a firm rotation.

Step 10: Tightening

The gland will work effectively when it is tightly fitted into the cable. You’ll only need two spanners to tighten the compression cable gland as required. The first spanner will be used on the actual nut and the other on the gland’s body.  You will get the best results by trying to back it up and twisting the gland’s nut as a way of tightening it inside the body.  Though you may use adjustable grips in this exercise, they may not avail the required results as they will shave off the parts of the body made of brass in the future.

Step 11: Remove the outer PVC on the cable and add an earthing ring to the resulting enclosure.  However, you need to be keen to ensure that none of the steel wires in the cable have crossed over or missed underneath.

The compression cable gland is now set, tight, and ready to use.

Q13. What Are the Different Types of Cables and Compression Cable Glands to Be Used?

Multiple types of cables may be applied in compression cable glands. However, the classification of these cables greatly depends on the following characteristics:

• By considering the voltage ratings
  • Cables could be classified as low, high, and extra-high voltage.
• Based on the type of conductor material used
  • They may come as copper or aluminum conductor cables.
• Either armored or unarmored cables
• By considering the type of insulating material used
  • XLPE insulated, rubber insulated or PVC insulated.
• The number of cores used
  • Single-core, multi-core, four-core, two core, three core, or three and a half cores
• The type of sheathing material used to assemble the cable
  • Aluminum sheathed, PVC sheathed, lead sheathed or rubber sheathed.
• By considering the cross-section of the conductor

Q14. What Are the Different Types of Compression Cable Gland Material?

The type of material used in the manufacture of compression cable glands acts as essential determinants of the gland’s level of performance, the environment in which it will be harbored, the type of cable to be used, and the kind of application. In particular, most of the compression cable glands will be manufactured from metals and plastics.

Metallic cable glands find a wide range of uses particularly in settings that require higher degrees of mechanical and chemical stability and across technological platforms. The advantages of metallic cable glands include:

• Their ability to remain durable over a long period
• They present with a rigid stability
• The ability to withstand wet conditions

On the other hand, plastic compression cable glands are diversely used in a range of settings based on their ability to make the gland resistant to salt water, grease, and weaker acids.

Nylon compression cable glands are widely used in instrumentations telecommunications, data cables, and electrical power.  They are highly efficient in connections that require flexible cables and higher levels of strain relief. Nylon glands may bear an IP rating of 68 which is the highest in the market.

Brass compression cable glands are diversely applied in types of machinery particularly in controlling machines, medical equipment, and measuring instruments. They are highly appreciated for their ability to resist corrosions and high-quality electrical and thermal conductivities.

Q15. What Are the Different Types of Compression Cable Gland Mountings?

Just like the materials used to make compression cable glands, the mountings also depict a wide range of variations. The mountings used in compression cable lugs may include adhesives nuts, flanged, or compounds.

The type of compression gland mounting of choice will highly depend on the type of environment that the gland will be used in. considering the environment, the mountings may be classified as:

• Waterproof
• Fire and explosion-proof
• RFI or EMI proof (for those used in areas that require shielding from radio frequency interfaces and electromagnetic radiations).

Despite the type of mounting used, most manufacturers work towards ensuring that the compression cable glands are as airtight as possible to protect the penetration of unwanted liquids like water and oil.

Q16. What Are the Safety Considerations to Embrace When Using Compression Cable Glands?

Safety must be the first thing to ring in your mind any time you go shopping for a compression cable gland. This explains why there is a universal rating system that seeks to ensure that the compression cable buyer is aware of what they are spending their hard-earned cash on. The compression cable gland you purchase will come with an Ingress Protection Marking rate which will vary depending on the degrees of efficiency and design of the gland.  Always ensure that the compression cable gland you purchase meets these ratings to be rest assured that you are secure.