Polyplas International are able to supply a range of Technical Services in order to provide the most effective solution for suspension and seismic bracing.
The following range of engineering services are available:
Installation Design
Polyplas International are able to provide expert advice in order to ensure the most effective installation for any application.
In order to reduce programme time and installation costs further, Gripple Catenary Systems can be employed to span structural steels and suitable building components.
Seismic Bracing Design & Specification
Gripple is a world leading provider of seismic bracing and blast protection systems. Gripple Seismic systems are fully tested and approved to OSHPD OPA-2123-10 and UL NEBS GR 63 Core Certification and has SMACNA verification, recognised as the most demanding requirement in the world.
Polyplas International Technical Services can offer:
- Engineered seismic bracing calculations based on design category, occupancy, importance and relevant site specific seismic specifications.
- Detailed engineer’s sealed drawings indicating the location of seismic bracing points and bracket type.
- Polyplas International on-site training on seismic product installation.
- Completion visit by a Polyplas International Seismic Specialist to ensure correct installation.
- Gripple Seismic Bracing products per engineering calculations, including:
- Seismic wire rope kit with End Fixing and colour coded verification tag
- Seismic component bracket
- Gripple Seismic Hanger
On-site Support
Site surveys, on-site pull testing to verify substrate suitability, progress reports and completion certificates can all be requested from Polyplas International Technical Services. Training is also available on a range of Gripple products and time saving installation methods.
Safe Working Loads
Each size range of Gripple hangers has a specification which must be adhered to in order to ensure safe operation. When suspending vertically, the maximum load rating for each size range is shown in the table below.
| Size | Safe Working Load (SWL) |
|---|---|
| No.1 | 10 kg |
| No.2 | 45 kg |
| No.3 | 90 kg |
| No.4 | 225 kg |
| No.5 | 325 kg |
Hanging at Angles
The load rating for a Gripple Hanger is based on the suspension being hung vertically. If the wire rope is at an angle, an additional sideways force is applied which increases the load on the suspension. The net effect is shown in the table below.
Wire Rope Construction & Cross Sections
The wire ropes used within our product ranges are manufactured with a galvanised coating in accordance with the norm EN 12385.
Failure to comply with these recommendations may result in product malfunction and possible damage to property or person and will invalidate the Gripple guarantee. Gripple products are guaranteed to be free from defects in materials and workmanship in accordance with our terms and conditions. No other warranty, whether express or implied, including any warranty of merchantability or fitness for purpose shall exist in connection with the sale or use of any Gripple product.
For full technical information and installation instructions please contact your local Area Manager.
Loads
Always operate the product within its stated safe working load range.
Lifting
Do not use for lifting, either by crane or as part of a pulley system.
Suspend static loads only.
Installation
Do not walk or stand on the Gripple product installation unless expressly designed for this purpose.
Painting
Do not paint the hanger prior to installation. Ensure that the hanger is in its final position prior to applying any paint to the wire rope assembly. Do not move the fastener after painting.
Lubrication
Do not apply oil or any other lubricant to the hanger or any other part of the assembly.
Joining
Never join two ends together in-line.
Wire Rope
Always use the fastener supplied and specified wire rope. Never use on coated wire rope or other rope. Trim any damaged filaments with the wire cutter before use.
Environment
Do not use in chlorinated or chemically corrosive atmospheres. Standard hangers are for use in dry and air conditioned environments only. Stainless steel hangers should be considered for high to saturated humid environments after validation by a competent person. Not suitable for Swimming pools.
Impact
If there is potential for impact on the wire rope suspension or suspended services, seek advice from Polyplas International prior to installation.
Hanging at an Angle to Vertical
Ensure that the load calculation considers the effect of ‘side load’. For example, at an angle of 60° to vertical the SWL is effectively reduced by 50%
Ducting: When installing included angle teardrop hangers on round/ spiral ducting or pipes, the final included angle of the assembly should not exceed 60°
Y-Fit: Legs on Y-Fit not to be installed greater than 60°
Gripple products have been independently tested by leading test houses around the world including Lloyd’s Register, Apave and TUV.
Testing includes:
- APAVE Certification
- CSA Certification
- INTERTEK Certification
- LLOYDS Certification
- SMACNA Certification
- TUV Certification
- UL Certification
- Load Testing
- Vibration Testing