HEAVY DUTY CLAMPS IHCT

Construction
Special bolt design has the spacer integrated - no more lost bolts Reinforced loops allow significantly higher tightening torques Mechanically locked closure eliminates welds and their associated contact corrosion Optimal hose protection through the float

Application

• Pirtek heavy duty clamps are particularly designed for sealing suction and pressure hoses that incorporate plastic or steel reinforcements and high Shore hardness values
• Bands can withstand extremely high tensile forces
• Suited to assembly using manual, pneumatic or electric tools
• Especially suited for use on commercial, automotive and industrial mobile equipment

Materials and Specifications
All Pirtek / Norma heavy duty clamps conform to DIN 3017 Type W2: (Product Code IHCTG) 1.4016 (AISI Grade 430) Stainless Steel band Zinc plated steel clamping head (CrVI free) 72 hour corrosion resistance in salt spray test Type W4: (Product Code IHCTS) A

Terminology Used
The tightening torque describes the recommended torque that is applied in order to tighten a hose clamp. It is largely defined in the DIN 3017 Standard and is measured by means of a torque wrench. However, better clamp designs incorporate design features that best convert the tightening torque into band tension, and so increase the tightness of a joint. Measurement of band tension (which is not covered in the Standard) provides the best objective measurement of clamping performance. Pirtek clamping systems are manufactured in Germany by Norma®, who routinely conduct band tension measurements as part of their design and manufacturing processes. Fracture torque indicates what tightening torque will result in destruction of a clamp, and provides a guide to the overall robustness of a clamp. Field servicing of mobile equipment in the absence of torque wrenches often results in manually applied tightening torques that exceed recommended tightening torques. Quoted test torques are generally 30% above recommended tightening torques, and represent the maximum value at which no permanent damage to a clamp will occur through over-tightening. No-load torque defines the torque needed to turn the screw without generating any clamping force. Low no-load torques with negligible deviations typify clamps that will perform well during assembly.

Notes
* Empty Merchandiser Product Code: IHCMERT-EMPTY

Material
Steel