Garrett 914956-0003 Blow-Off Valve GVB-50A 50 mm, Black

Garrett GVB-50A vent-to-atmosphere blow-off valve — relieves compressor surge on lift-off for smoother, more reliable boost control.

The GARRETT 914956-0003 VTA GVB-50A in black is a high-performance 50 mm blow-off valve engineered by Garrett, the creators of G-Series turbochargers and GVW wastegates.

Designed for vent-to-atmosphere operation, it ensures maximum airflow and precise boost control.

Optimized through CFD testing, this valve achieves a maximum flow of 350 CFM / 0.21 kg/s (GVB-50R) while maintaining exceptional thermal efficiency.

A Nomex-reinforced diaphragm ensures long service life, while the plated stem and bushing reduce friction and wear.

Specifications

• Type: vent to atmosphere
• Valve size: 50 mm
• Base pressure: 0.7 Bar (10 PSI)
• Spring range: 3–13 PSI
• Max flow: 350 CFM
• Colour: Black

Features

• CFD-tested design for maximum flow and thermal efficiency
• Replaceable components for extended service life
• Robust construction allows easy diaphragm replacement
• 6061 anodized aluminum actuator cover with billet-machined housing
• Maximum flow: 350 CFM / 0.21 kg/s (GVB-50R)
• Four recirculating outlet adapters available (sold separately)
• Base pressure: 0.7 Bar / 10 PSI (blue and white spring installed)
• Configurable spring settings: 3 / 4 / 6 / 7 / 9 / 10 / 12 / 13 PSI