NORMACLAMP® S/SP

Sealing clamps (NORMACLAMP® S) to DIN 3017
Retaining clamps (NORMACLAMP® SP) to DIN 3016

Thanks to their robust clamping brackets with metric bolts the clamping force offered by NORMACLAMP® S/SP is very high. We recommend the two-part version for applications submitted to extreme pressure and tensile loads. Starting from 9mm band width all clamps can be supplied with an additional vibration damping rubber profile (GU) which also protects the joint against creeping water (NORMACLAMP® SPGU).

Materials

W1* W2 W3 W4 W5
X X** X

*No Chromium VI for surface treatment

**For band width 30 on demand

 

Bolts

  Zy 

  Sz

 Sk 

Band width 5

X

Band width 7

X

Band width 9

X

Band width 12

X

Band width 15

X

Band width 20

X

Band width 25

X

Band width 30

X

 Clamp S/SP Gummiprofil_1

Rubber profiles

For the profile type (a or b) and the material (Silicone or EPDM) available for each clamp please refer to the table giving a summary of sizes for "clamps with rubber profile".

 Clamp S/SP Gummiprofil_2

B = Width of clamp

b1= Width in mm

S2 = Material thickness in mm

Rubber Materials

Properties Polychloropren Silicon EPDM
Tensile strenght N/mm² 10 8,5 7
Breaking elongation in % 200 420 350
Shore Hardness A 70 +- 5 70 +- 5 70 +- 5
Temperature - °C -35° to +100° -60° to +170° -40° to +120°
Resistance to weather & ozon very good good very good
Resistance to ageing & sund cracks very good very good very good
Resistance :
Petrol adequate average not resistant
Oils & greases good good not resistant
Acids good good good
Alkalis good mäßig good
Alkalien good mäßig good

 

 

Corrosion resistance of TORRO® materials

Material Corrosion resistance in salt spray testing
W1 Min. 144 h
W4 Min. 240 h
W5 Min. 400 h

* Max. 10% corrosion of base material admissible, however min. 144 h without Fe corrosion required