Flexseal Chemical Coupler CC175G

Size Range 123mm-456mm

Flexseal Chemical Couplings provide a flexible and watertight connection on underground drainage systems that require a high chemical resistance to a wide range of chemicals.

Manufactured to meet specific site requirements, Flexseal Chemical Couplings are able to withstand the widest possible range of chemicals, due to the shear band and clamping bands encasing a high performance elastomeric sleeve with a chemically resistant one-piece Fluoropolymer (FEP) liner and expanded PTFE seals.

Flexseal Chemical Couplings are available with either Grade 1.4301 (304) or Grade 1.4401 (316) stainless steel clamp and shear bands.

Chemical Resistance

The FEP liner and PTFE seals are chemically inert and solvent resistant to most chemicals with the exception of molten alkali metals, fluorine at elevated temperatures and other complex halogenated compounds, for example, chlorine trifluoride, at elevated temperatures and pressures.

In situations of extreme temperatures, 80% sodium hydroxide, metal hydrides, aluminium chloride, ammonia and certain amonios (R-NH2) may attack the film in a manner similar to molten alkali metals.

Although special testing may be required when such extreme reducing or oxidizing conditions are evident, the FEP liner and PTFE seals exhibit a very broad range of chemical and thermal serviceability