520/530 Series and 520/530 Series with Service Seal

Lightweight all stainless steel clamps resist corrosive atmospheres and hot soils. Available in single-section Full-Seal® style (Series 520), in two-section Xtra-Range® style (Series 530), and in Servi-Seal® style with welded-in service outlet. Servi-Seal style is available in either single-section (Styles 521-529) or two-section (Styles 531- 539). 

• 304L stainless steel “Gap Bridges” molded into gasket where the band sections join and add support to provide 360° clamping pressure 

• Tapered end gridded gasket made of specially compounded nitrile rubber has gridded pattern for positive sealing and tapered ends to make installation quick and easy 

• Stainless steel bands are machine-welded and made of 304L stainless steel 

• Bolting mechanism features a unique low profile design, which makes clamp easy to handle and easy to fit around pipe 

• The high-strength stainless steel bolts have spin-fit threads, treated with an anti-galling agent for fast installation – plus special T-heads so they drop into bolt bar slots easily yet do not turn during tightening 

• Stainless steel bolting mechanism is pre-assembled. Unique weight-saving HYMAX design features lug and bolt bars which rotate as the clamp is tightened

• Maximum working pressure (water, max. temp. 150F): 2”-4” = 300 PSI(2068 kPa); 6” = 250 PSI (1724 kPa); 8” = 200 PSI (1379 kPa); 10” = 150 PSI (1034 kPa); 12” = 100 PSI (689 kPa); greater than 12” = 60 PSI (414 kPa)