Caleffi 3/4" Sweat FlowCal Automatic Flow Balancing Valve (4.5 GPM)

Features: Maintain a fixed flow rate Patented, anti-scale, low noise polymer FlowCal cartridge. Connection Type: Sweat Connection Size: 0.75 Inches Max working pressure: 232 psi (16 bar) Temp range: 32° - 212°F (0° – 100°C) Max percentage of glycol: 50% Differential pressure control range: 2-32 psid Flow rate: 3.5 GPM Flow Accuracy: ±10% Reduction of Lead in Drinking Water Act: Compliant: 0.25% max weighted average lead content. Certified by: IAPMO R&T