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Brochures

  • Kee Klamp Components Guide
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  • Kee Klamp 623 High Capacity Railing Flange
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  • Rotech Report 265-7
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  • Meeting Every Safety Loading Standard Up To 1500 Newtons Per Metre

Kee Klamp® Tubular Fittings

A Cost Effective Alternative to Welding with Unlimited Applications

Since 1934, Kee Safety has been dedicated to providing the world with a versatile, economical, and durable method of building tubular structures. KEE KLAMP tubular fittings are available in more countries, more styles, more sizes, and more colours than any other brand of tubular fitting.

Galvanised Steel Components

Steel tube is an inherently efficient structural component. It is strong, has no sharp corners, and is readily available. The difficulty in using steel tube to form structures arises when joining. Threaded tube must be supplied in set lengths making for zero flexibility in installation. Welding is labour intensive, requires a highly skilled workforce, and specialised equipment.

The answer is KEE KLAMP fittings. The underlying principle is simple but highly effective: use slip-on fittings to create versatile and rigit tubular structures.

Features  & Benefits of the Kee Klamp® Handrail

  • Made of galvanised cast iron to BS EN ISO 1461
  • High corrosion resistance
  • Quick installation
  • No welding, so no hot work permits required
  • No threading or bolting, so no special tools required
  • A flexible system that can accommodate on site variations
  • Cost effective to install as it is quick to install and only low skilled workforce is required
  • TUV certified for strength, manufacturing quality and consistency

The Kee Klamp® Fitting

The engineering principle behind the KEE KLAMP fitting is the foundation of the most versatile tube connection system available. There are many variations of tubular fittings to suit a wide range of applications, providing the versatility to achieve any structural configuration.

KEE KLAMP tubular fittings are galvanised iron castings manufactured to the requirements of BS EN 1562 & 1563. We have engineered a range of fittings to suit different tube sizes, from 17.5mm to 60.3mm. Hexagon socket set screws firmly lock the fitting to the tube. Set screws are manufactured in case hardened steel and are protected against corrosion with KEE KOAT; alternatively, stainless steel screws are available.

A KEE KLAMP fitting (size 5 to 9) can support an axial load of 2000 lbs (900 kg). per grub screw with the grub screw tightened to a torque of 29 lbs. ft.(39 Nm); rating includes a safety factor of 2:1.

 

Affordable

Fabricating and building with KEE KLAMP tubular fittings saves time, money, and resources.

View our featured solutions below to learn more about how KEE KLAMP products can help bring your projects in on time, and under budget!

 

Contact us today with your application for a free quote

Kee Klamp® Technical Specifications

The KEE KLAMP Tubular Fittings

The simple but effective engineering principle of the KEE KLAMP tubular fittings is the foundation of the most versatile tube connection system available. There are many variations of tubular fittings to suit wide-ranging applications, providing the versatility to achieve virtually any structural configuration.

KEE KLAMP tubular fittings are generally made from cast iron* and are manufactured to the requirements of EN 1562 & EN 1563 and galvanized to the requirements of EN ISO 1461. A range of Components to suit seven sizes of tube is available. A simple hexagon key is the only tool required to create a strong, rigid joint. A recessed grub screw tightened by the hexagon key, firmly locks the tube into the Component. The grub screw is generally manufactured in case hardened steel* and benefits from Kee Koat® protection against corrosion. This combined with the ThredKoat® (patented) factory applied coating for the threaded recesses ensures that KEE KLAMP tubular fittings achieve longer life and better corrosion resistance.

A KEE KLAMP Component (size 5 to 9) can support an axial load of *900 Kg (2000 lbs) per grub screw with the grub screw tightened to a torque of 39 Nm (29 lbs. ft.).

* Materials used can vary according to application. Please refer to manufacturer for detailed specification.

Specifying KEE KLAMP Tubular Fittings

The information on tubular fittings in this site is comprehensive, and because of the coding system we have adopted, easy to use.

Diagrams are shown for each Component showing entry of tube, a table of dimensions and a definition of use adjacent to its appropriate Type number (10, 15, 20, 25 etc.).

Alongside the Type number is a code (4, 5, 6, 7, etc.) relating to the outside diameter of the tube for which the Kee Klamp tubular fitting had been designed. The relationship between the KEE KLAMP tube reference and standard tube outside diameter is explained in the aforementioned chart.

 

KEE KLAMP
tube size
Tube diameter
(mm o.d.)
Nominal bore*
(mm)
3 17.5 10
4 21.3 15
5 26.9 20
6 33.7 25
7 42.4 32
8 48.3 40
9 60.3 50

*Nominal bore is an arbitrary dimension, because the bore varies with the wall thickness of the tube.

Example: (1) A 10-7 is a Type 10 KEE KLAMP Component with both sockets designed to accept a tube that has an outside diameter of 42.4mm or 1 11/16" (1 1/4" Nominal tube Size). (2) A 25-9 is a Type 25 KEE KLAMP Component with all three sockets designed to accept a tube that has an outside diameter of 60.3mm or 2 3/8" (2" N.P.S.).

Where more than one tube reference is shown alongside a particular Type number, it indicates that the individual sockets are designed to accept different sizes of tube. In a multi-digit code number the first figure relates to the 'A' socket and the second to the 'B' socket. Example (3) A 45-76 is a Type 45 KEE KLAMP Component with 'A' socket accepting a tube that has an outside diameter of 42.4mm or 1 11/16", and a 'B' socket accepting a tube/pipe that has an outside diameter of 33.7mm or 1 11/32".

While Kee Klamp Ltd. can give a general guidance relating to the use of each KEE KLAMP Component detailed in this site, the nature of the product means that the ultimate responsibility for selecting the correct fitting for an application must lie with the customer.

The customer should also ensure that the existing structure to which the KEE KLAMP construction is being secured, is of sufficient strength to support both the self weight of the KEE KLAMP construction and the imposed loads applied, including wind loads, snow loads, and any other superimposed loads.

Metric Beam Load Table

For uneven load distributions or single spans, the required tube size must be determined by standard bending moment calculations assuming a KEE KLAMP joint to give a simply supported beam. The table shown below gives an indication only of the safe load uniformly distributed, in kg, that may be carried per shelf consisting of front and back tubes when used as continuous beams. Recommended set screw torque: 39 Nm.

At loads greater than 900 kg, consideration must be given to grub screw slip.

span (m)
Fitting Size
5 6 7 8 9
Tube Size
26.9mm x 2.6 33.7mm x 3.2 42.4mm x 3.2 48.3mm x 3.2 60.3mm x 3.6
0.5 540 1060 1750 2380 4000
0.6 435 850 1407 1870 3250
0.7 375 730 1207 1595 2760
0.8 330 645 1063 1385 2420
0.9 295 579 946 1230 2160
1.0 265 525 850 1110 1950
1.1 240 478 770 1013 1775
1.2 219 438 705 930 1625
1.3 202 403 651 858 1497
1.4 187 373 604 796 1387
1.5 175 347 564 741 1290
1.6 - 325 529 693 1205
1.7 - 306 499 650 1129
1.8 - 290 472 613 1061
1.9 - 277 448 581 999
2.0 - 268 427 553 987
2.1 - - 408 528 944
2.2 - - 391 505 855
2.3 - - 376 485 818
2.4 - - 362 467 785
2.5 - - 349 450 755
2.6 - - - 434 728
2.7 - - - 419 703
2.8 - - - 405 680
2.9 - - - - 659
3.0 - - - - 639
3.1 - - - - 620
3.2 - - - - 603
3.3 - - - - 588
3.4 - - - - 575
3.5 - - - - 564

Table reflects a safety factor of 1.67:1

Metric Upright Load Table

This table gives an indication only of the safe load, in kg., that may be carried between the above restraints by single tubes to EN 10255 when used as uprights. Loads listed under 'A' columns refer to those loads that are obtainable according to schematic 'A', and loads listed under 'B' columns refer to those loads that are obtainable according to schematic 'B'. Schematic 'B' details a racking system that is mechanically affixed to the surface on which it stands whereas schematic 'A' details a free-standing racking system. Recommended set screw torque: 39 Nm

Load table (Kg) - unfixed upright

Length (m)
Fitting Size
5 6 7 8 9
Fitting Size
26.9mm x 2.6 33.7mm x 3.2 42.4mm x 3.2 48.3mm x 3.2 60.3mm x 3.6
0.3 1860 3086 4192 4916 7250
0.4 1600 2810 3910 4638 6930
0.5 1360 2534 3628 4360 6610
0.6 1140 2258 3346 4082 6290
0.7 940 1982 3064 3804 5970
0.8 775 1706 2782 3526 5650
0.9 640 1471 2500 3384 5330
1.0 540 1269 2235 3248 5010
1.1 - 1092 1995 2970 4690
1.2 - 937 1779 2692 4370
1.3 - - 1587 2414 4050
1.4 - - 1417 2169 3730
1.5 - - 1265 1954 3410
1.6 - - 1130 1764 3130
1.7 - - - 1602 2890
1.8 - - - 1462 2680
1.9 - - - 1342 2480
2.0 - - - 1242 2300
2.1 - - - - 2120
2.2 - - - - 1950
2.3 - - - - 1800
2.4 - - - - 1650

Table reflects a safety factor of 2:1

Load table (Kg) - fixed uprights

Length (m)
Fitting Size
5 6 7 8 9
Tube Size
26.9mm x 2.6 33.7mm x 3.2 42.4mm x 3.2 48.3mm x 3.2 60.3mm x 3.6
0.3 1720 2950 4038 4783 7044
0.4 1435 2617 3703 4446 6661
0.5 1150 2284 3368 4109 6278
0.6 910 1951 3033 3772 5895
0.7 725 1618 2690 3435 5512
0.8 590 1348 2363 3098 5129
0.9 480 1128 2028 2761 4746
1.0 - 948 1752 2424 4363
1.1 - 798 1524 2134 3980
1.2 - - 1340 1884 3597
1.3 - - 1188 1668 3253
1.4 - - 1066 1484 2951
1.5 - - - 1328 2681
1.6 - - - - 2441
1.7 - - - - 2226
1.8 - - - - 2032
1.9 - - - - 1857
2.0 - - - - 1697

Table reflects a safety factor of 2:1

Vibration Test Report

TEST REPORT: Vibration of KEE KLAMP Assemblies

Exhaustive tests on samples of standard size 7 KEE KLAMP Tubular Fittings were performed by an independent research laboratory. The purpose of the test was to evaluate the use of either standard set-screws or self-locking set screws.

Test Arrangement

A "Tee" section test assembly was made using three 300mm lengths of galvanized 1 ¼" standard pipe held together by a socket Tee Component (Type 25-7). The vertical leg of the test assembly was supported in a standard railing flange (Type 62-7). The completed assembly was then rigidly attached to the vibration table.

The test assembly was initially assembled using standard grub screws and tested in the configuration. The standard grub screws were then replaced with self-locking grub screws and the tests repeated.

Test Procedure

The test was conducted on a Ling 667 Kg Electromagnetic vibration table.

The table was programmed to perform a resonance search between 25 and 350 Hz. The following table details the resonant frequencies that were recorded.

During the resonance search amplification factors, Q, were measured at each resonant frequency, the point of reference being the end of one horizontal pipe. The table was then held at one of the resonant frequencies, set in motion with a controlled acceleration level of 4g, and run for a period of six hours. This was repeated for three more resonant frequencies in descending order of "Q" factor.

Resonance
Frequencies Q Factor Running Time
74 1.27 Nil
106 1.27 Nil
158 1.53 6 hours
200 1.8 6 hours
221 5 6 hours
295 9 6 hours

During the twenty-four hours of vibration at the four resonant frequencies above no signs of loosening with either type of set screw occurred.

General Questions

In what countries are Kee Klamp components available?
Kee Klamp components are available in over 30 countries worldwide. Click here to request the contact information for your nearest distributor
What are Kee Klamp components used for?
With Kee Klamp components, you can build various tubular structures such as railing, racking, retail store fixtures, soft contained play systems, awning, fencing, machinery framework, and 1001 other applications.
What is a Kee Klamp structural tube Component?
Kee Klamp slip-on tube components are cast-iron tube components, which conform to BS EN 1562/1563, SAE J158 A grade M3210, ASTM A47-77-32510. Kee Klamp components are used in conjunction with steel tube to build structures of unlimited size and scope. Casehardened grub screws attach the fittings securely around the tube. There is no welding or drilling required when building with Kee Klamp components. Kee Klamp components are galvanised, making them ideal for indoor or outdoor use. The only tools required for building Kee Klamp structures are a tube cutter and a standard hex key.
What style or types are available?
Over sixty styles of Kee Klamp components are available to meet almost any structural tube needs. Visit our Online Catalogue to view the available styles and types.

Installation Questions

Are there Kee Klamp components available to modify or extend an existing tube structure?
Yes, Kee Safetty Ltd has designed several add-on components for retrofitting existing tubular structures. Please call or email us with your specific need.
How do I install Kee Klamp components?
Install instructions are available online.
What about the components being tampered with?
Grub screw inserts are available to deter tampering with a finished Kee Klamp structure.
What is the recommended torque for the grub screws?
When constructing with Kee Klamp components we recommend that you tighten the grub screw to 29 lbs./ft. or 39 Nm. This is approximately "hand-tight."
What size hex key is used with Kee Klamp components?
Size 4 fittings use a 3/16" (4.76mm) A.F. (Across Flat) hex key, while Sizes 5 and 6 use a ¼" (6.35mm) A.F. hex key. Sizes 7, 8, and 9 fittings use a 5/16" (7.94mm) A.F. hex key.
Will Kee Klamp components rust if used outdoors?
Kee Klamp components are galvanised to BS 729 (ISO 1461) and ASTM A153 which can last for over 30 years. Kee Klamp grub screws are treated with our Kee Koat® corrosion protection. The fitting recesses are also coated with our factory applied, ThredKoat®(patented),corrosion resistance.

Technical Questions

Are Kee Klamp components available with alternative finishes?
Besides the long lasting galvanised finish, Kee Klamp components can be powder coated to any RAL colour.
Can different sizes of tube be used when building tubular structures with Kee Klamp components?
Yes, Kee Safety Ltd. has designed several of its components with multiple sized barrels to allow for the utilisation of different sizes of tube when building tubular structures.
What are the structural design specifications when building with Kee Klamp components?
An independent laboratory has tested Kee Klamp components on terms of load capacity and vibration resistance. Using these results, we have developed a series of structural design guidelines that must be followed when building with Kee Klamp components. These can be found in the "Tech Spec" section to the left.
What quality certifications has Kee Safety Ltd attained?
Kee Safety Ltd is certified to ISO 9001, the core Kee Klamp components have attained TUV certification.
What type of tube can be used with Kee Klamp components?
Kee Klamp components are designed to suit steel tubing to BS EN 10255 (ISO 65), from 13.5mm to 60.3mm outside diameter.
Which sizes of tube can I use with Kee Klamp components?
Most styles of Kee Klamp components are available for nominal tube sizes ½" I.D. (13.5mm OD) to 2" I.D. (60.3mm OD).

Accessories

Mesh Panels

Panels in a variety of materials, sizes and finishes.

The standard 50mm x 50mm Weld Mesh is available in either Galvanised or Powder Coated finish.

Maximum panel size is 240cm x 120cm.

Smaller opening are also available (25mm x 25mm or 50mm x 50mm).

 

Toeboard

The Toeboard can be used with fitting Type 130-87 (shown on the left) or alternatively with the 69 or L69 (aluminium) Railing Flange (shown on the right).

The Toeboard is 102mm high and is made of aluminium.

A channel in the Toeboard accepts the bolt head of the mounting hardware, allowing ease of placement. It can be supplied anodised if required.

 

Self Closing Gate

Safety gates are an important part of most handrailing systems and provide safe protection to openings, for example at the top of ladders.

Kee Safety offers a wide range of self closing spring loaded safety gates. Our gates have been extensively tested and comply with the EN 13374 Class A and EN 14122 Part 3 & Part 4, and are CE certified to EN1090. To learn more about self-closing gates please vistit the Kee Gate page.

All Catalogue Items

P51 – Modified M51-8 with Offset Slots

Part Description

Designed for the secure fitting of various types of panels and flooring to tube structures ( i.e. plywood, plastic sheeting, wood planking, etc.) This fitting has two offset flanges to allow the flush attachment of panels to tube.

P51 - Modified M51-8 With Offset Slots P51 - Modified M51-8 With Offset Slots Pipe Size Diagram

Part Part Name Weight A D E F G H J K L
P51-8 Modified M51-8 with Offset Slots, 48.3mm O/D 0.59 kg 8 61 mm 81 mm 47 mm 32 mm 8 mm 10 mm 11 mm 13 mm
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