DN1000 Nova Siria S.r.l. double bolts straight coupling installations in Russia. Installation of the first batch for a total of 38 DN1000 couplings. Nova Siria S.r.l. coupling feathers are: 30mm or 50mm tolerance range on pipe external diameters. Suitable for all pipe materials. Straight, flange adaptor and stepped configurations available. +/- 3 degrees angular deflection before and after installation. Certification of the welding process according to Uni EN ISO 15614-1 Welding checks and tests with qualified personnel according to the standard UNI EN 9712 Internal sandblasting and coating process (with 250microns standard configuration up to 450microns RILSAN anti-corrosion coating thickness for specific projects ).   Thanks to our Russian colleagues and friends at Hawle Russia for the great job, once again.