Description CFD tested for maximum flow and thermal efficiency Optimized actuation stability and temperature resistance for superior durability Replaceable valve and bushing components to increase service life Robust design for easy diaphragm replacement Liquid-cooled actuator ports for use on severe applications (up to 52% reduction in body temp) Anodized aluminum actuator cover Four Colors: Red | Blue | Black | Silver Three Sizes: 40mm | 45mm | 50mm Springs | Fittings | Flanges | V-bands included Standard Base Pressure: 1 Bar | 14.5 PSI Maximum Base Pressure: GVW40: 25 PSI | 1.7 Bar GVW45 | GVW50: 23 PSI | 1.6 Bar Minimum Base Pressure: 3 PSI | 0.2 Bar