Application: used as a flexible connection between the cementing pump and maniford and cementing head for conveyance of cement slurries at high pressure. Inner tube: Moidified NItrile. 3/16" thick, black, specially compound for handling abrasion and corrosion. Cover:Moidified NItrile. Black, oilproof, Anti-abrasion, weather resistant,synthetic rubber Working pressure:69 bar Temperature range: -4~180; (-20 to +82) Type of Coupling: Swaged-7k hose assemblies with working pressures exceeding 5,000 psi, the end fitting will be butt-welded onto the hose coupling, couplings can be supplied with your hcoice of end fittings. Fittings: hammer unions, femal sub, male sub/nut. hubs, flanges Note: field welding of fittings to coupling is not recommended. Optional: safety clamps