Set plumbing fittings. Valves, air. The modifier stack is not minimized. All models in the scene are grouped and are named: -Balansirovochny valve STAD with drenazhёm -Balansirovochny valve STAD -Balansirovochny without drainage valve STAD-C balancing valve -Statichesky VIR 9505 -The valve hand-Danfoss USV-I -glass sight unilateral SW12 DN15-25 -FLAMCO separator Air -ITAP ART 362 automatic air -Vozduhootvodchik danfoss