Garrett 914959-0001 Blow-Off Valve GVB-50R 50 mm, Red

Garrett GVB-50R recirculating blow-off valve — relieves compressor surge on lift-off for smoother, more reliable boost control.

The GARRETT 914959-0001 RCV GVB-50R in red is a high-performance 50 mm recirculating blow-off valve, developed by the same engineers behind Garrett’s G-Series turbochargers and GVW wastegates.

Optimized with advanced CFD technology, it delivers up to 350 CFM / 0.21 kg/s of airflow, ensuring precise boost control and enhanced efficiency.

The Nomex-reinforced high-temperature diaphragm provides exceptional durability and fatigue resistance, while the plated stem and bushing reduce friction and wear.

With a base pressure of 10 PSI and configurable spring settings from 3 to 13 PSI, it offers versatile tuning options.

Specifications

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

Features

• CFD-tested for maximum airflow and thermal performance
• Replaceable components extend service life
• Robust construction for 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 rates: 3 / 4 / 6 / 7 / 9 / 10 / 12 / 13 PSI