The GV310R-15B04 is a 3-way mixing globe valve from the VG310R series, built with a bronze body (DN15, Rp internal thread) and rated PN16. It controls water or glycol mixtures up to 60% concentration in HVAC or process loops. The equal-percentage flow characteristic (Kvs 3.8) with rangeability greater than 50:1 gives it fine authority at low openings and predictable gain across the stroke. Body size is 15 mm (1/2 in) with a matching 15 mm pipe connection — this is the standard small-port size for branch circuits or zone control. The 11 mm stroke and Class III seat leakage (0.1 % across both A-AB and B-AB ports) mean it holds tight enough for most closed-loop applications without requiring a separate shutoff valve.
The Rp internal thread (ISO 7-1 parallel) mates directly to European-standard pipe fittings. Stem-up-closed action means the valve closes as the stem extends — verify actuator orientation if retrofitting a different brand. Operating fluid temperature spans -7 to 100 °C, covering chilled water through low-temperature hot water loops.