570/572 • Gasket

• Doby Verrolec

• Provides for rapid assembly of cross joints, minimising fabrication time.
• Mounted between two duct flanges to seal joint.

• Permanently flexible non-toxic sealant injected into the profile during manufacture, will not harden and crack post installation.
  
• Available in standard metric sizes of 20mm, 30mm and 40mm.
  
• Fully conforms to UK, HVCA specification DW144.
  
• No need to switch flange regardless of joint rating and pressure class.
  
• Full range of accessories to suit all sizes of flange.
  
• Tested and certified by BSRIA in accordance with the B&ES (formally HVCA) test procedures DW/TM1.
  
• Suitable for B&ES specification DW/144 for Joint Ratings up to J5 and pressure classes A, B and C.

• Duct Mounted Flange section.

https://www.sksales.co.uk/pdf/UK/DS/UK-EN-D01.111.4-570_572.pdf