Garrett GVB-50MM Blow-Off Valve (Vent To Atmosphere)

Garrett Vent | Blow-Off Valve GVB-50mm Vent To Atmosphere

Garrett Vent | Blow-Off Valves release excess boost pressure from the charge pipe when the throttle is closed, preventing damage to the turbocharger and other engine components, ensuring smooth operation and prolonging the turbo’s lifespan. Garrett Vent | Blow-Off Valves are created by the engineers that designed G-Series turbochargers and GVW Wastegates. GVB-50 is a high-flowing BOV with a 50mm valve, available in four striking color combinations: Red | Blue | Black | Silver. Select between vent to atmosphere (VTA) and recirculating (RCV) housing options. Delivering a maximum flow up to 350 CFM | .21kg/s (RCV) as a result of advanced CFD design software used to simulate, visualize, and quantify airflow before manufacturing started (GVB-50R RCV). The proprietary designed, high-temperature Nomex reinforced elastomer diaphragm ensures unmatched durability and fatigue resistance. A plated stem and bushing lower friction and improve wear resistance.

GVB Blow-Off Valves are set to 10 PSI of base pressure and offer configurable rates from 0.2 Bar | 3 PSI – 0.9 Bar | 13 PSI. Unlike the other products on the market, Garrett includes five springs enabling fine tuning of the pressure setting to optimize BOV performance, and therefore overall turbo system performance. The single vacuum port streamlines functionality. Every kit contains- all fasteners, springs, fittings, V-bands, clamps, and flanges.

Key Features

• CFD tested for maximum flow and thermal efficiency
• Replaceable components to increase service life
• Robust design for easy diaphragm replacement
• 6061 Anodized aluminum actuator cover and fully-machined billet housing
• Maximum flow 350 CFM | .21kg/s for GVB-50R
• Four outlet adapters for the recirculating valve. Adapters sold separately
• Base pressure 0.7 Bar | 10 PSI (blue and white spring installed)
• Configurable springs settings include: 3 | 4 | 6 | 7 | 9 | 10 | 12 | 13 PSI
• Wrought Aluminum Alloy Weld Flange
• 17/7 PH Stainless Steel Springs
• Plated stem and bushing for lowered friction and wear resistance
• High temp nomex reinforced diaphragm
• Stainless steel fittings and fasteners
• BOV flange dimensions interchangeable with Tial Q and QR!

Kit Contents

• Springs (Installed: blue, white, Spare: red, green, brown)
• V-Band Assembly: (V-Band, bolt, nut)
• Inlet Flange and O-Ring
• Air Fitting Hardware (nuts, bolts, washers, banjo fitting)

Part Numbers

• 914956-0001 – Garrett Vent GVB-50 Blow-Off Valve – VTA 50mm Red
• 914956-0002 – Garrett Vent GVB-50 Blow-Off Valve – VTA 50mm Blue
• 914956-0003 – Garrett Vent GVB-50 Blow-Off Valve – VTA 50mm Black
• 914956-0004 – Garrett Vent GVB-50 Blow-Off Valve – VTA 50mm Silver

Additional Info

• Spring Chart 
• Flange Diagrams