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Profiled, smooth or with insert – why DIN 3015 clamp bodies are available in different versions

Product Specialist for Fastening Technology

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Block-type clamp bodies in the Standard Series (according to DIN 3015, part1), in the Heavy Series (according to DIN 3015, part 2) and in the Twin Series (according to DIN 3015, part 3) are available in three different versions as standard.

This page explains the main differences between the three versions and their areas of application.

Profiled Version

  • Clamp body with profiled inside surface with tension clearance
  • Recommended for the safe installation of rigid pipes or tubes
  • To be used as fixed point clamp preventing the line from sliding
  • Outside diameter of the line is identical to the internal diameter indicated in the product catalogue and on the clamp body itself
  • Clearance between the clamp halves provides tension of the tube or pipe
  • Tightening Torques for Bolts and Maximum Loads in Pipe Direction must be observed
  • Available from STAUFF for all commonly used outside diameters and nominal sizes

Smooth Version (Type H)

  • Clamp body with smooth inside surface without tension clearance
  • Recommended for the safe installation of hoses or cables
  • Smooth inside surface and chamfered edges avoid damaging of the hose or cable
  • Outside diameter of the line is identical to the internal diameter indicated in the product catalogue and on the clamp body itself
  • Use it as a longitudinal guide by choosing the internal diameter of the clamp body slightly larger (in accordance to your specific requirements) than the outside diameter of the pipe, tube, hose or cable in order to allow the line to slide
  • Available from STAUFF for all commonly used outside diameters and nominal sizes

Version with Elastomer Insert (Type R)

  • Recommended for the extra-gentle installation of pipes, tubes, hoses or cables
  • Available for all commonly used outside diameters and nominal sizes
  • Standardised clamp body profile as a matching counterpart for an elastomer insert (type RI) made of Thermoplastic Elastomer, typically with a hardness between 55 Shore A and 87 Shore A
  • Available from STAUFF for all commonly used outside diameters and nominal sizes

Original STAUFF Clamps

For more than 50 years, STAUFF Clamps in the Standard. Heavy and Twin Series according to DIN 3015 symbolise quick and easy as well as secure installation of pipes, tubes, hoses, cables and other flexible and rigid components with outside diameters up to 450 mm.

Their vibration and noise reducing features are appreciated as being an important contribution to environmental protection and occupational health and safety

The processing of fire-proof clamp body materials, tested and approved according to several international fire-protection standards (such as BS 6853, EN 45545-2, UL 94) is only one of the many particular strengths of STAUFF

STAUFF guarantees prompt service, even for customised solutions according to customer’s specifications or based on our in-house development.

For selected types and series, independent certificates and approvals can be provided:

  • American Bureau of Shipping (ABS) 
  • Bureau Veritas (BV) 
  • Det Norske Veritas / Germanischer Lloyd (DNV-GL)
  • Lloyd's Register (LR) 
  • Department of the Navy 
  • Registro Italiano Navale (RINA) 
  • Russian Maritime Register of Shipping (RS) 
  • Technischer Überwachungsverein (TÜV) for the Standard Series
  • Technischer Überwachungsverein (TÜV) for the Heavy Series
  • United States Coast Guard (USCG) 

For the finishing of the range of pipe, tube, hose and cable clamps as well as metal hardware in carbon steel, STAUFF relies on the STAUFF Zinc/Nickel surface coating which has proven successful for many years. It provides reliable surface protection – even after transport, handling and assembly – and meets all current legal requirements.

Versions in stainless steel V2A and V4A are generally available from stock. Alternative materials and surfaces are available on request.

Selected Clamp Bodies in the Shop

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