Valve specs and fit
The GV210R-15B04 is a 2-way globe valve from the VG210R series, sized DN15 with a 15 mm (1/2 in) body and Rp internal thread connections. Bronze body, stainless steel trim (plug ASTM A276 Gr.316), and EPDM seat seal give it a fluid range of -7 to 100 °C with water or water-glycol mixtures up to 60 % concentration. Rated PN16 pressure class, with a flow coefficient of 3.8 kvs and equal-percentage characteristic. Seat leakage meets Class IV (0.01 % of rated flow). Stroke length is 11 mm; stem-up action opens the valve. Rangeability exceeds 50:1, meaning it holds control from low to near-full flow without losing resolution.