Skip to content

Garrett GVW-45 Vent Wastegate

by Garrett

Garrett GVW-45 Vent Wastegate

The brand new V-Band water-cooled Garrett external GVW45 Wastegate

CFD optimized, high-temp. stainless body, anodized top cover, V-Band flange

Garrett Vent | External Wastegates regulate turbocharger shaft speed by venting exhaust gas around the turbine stage of the turbocharger. CFD optimized design maximizes flow and delivers optimum boost control. Advanced thermal optimization increases durability of the diaphragm. The cap design makes spring changes and serviceability of the entire GVW lineup easier and more reliable to perform.

Garrett external Wastegates features:

  • 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 available: Red, blue, black and silver
  • Three sizes available: 40mm, 45mm and 50mm
  • Springs, fittings, flanges and V-Bands included
  • Standard base pressure: 1,0 Bar (14.5 psi)
  • Maximum base pressure: GVW40: 23psi (1,6 Bar), GVW45 and GVW50: 23 psi (1,6 Bar)
  • Minimum base pressure: 3 psi (0,2 Bar)
Material Data: The valve housing is cast from high temp stainless steel and rated for exhaust temperatures up to 1050°C. CFD optimized for maximum flow and thermal efficiency.
  • Valve Housing: High temp stainless steel rated up to 1050°C
  • Diaphragm: High temp Nomex reinforced elastomer
  • Actuator cover: Fully-machined anodized 6061 aluminum
  • Valve guide, bushing: Nitronic 60
  • Valve: High temp stainless steel with plated stem
  • V-Band: CNC machined 304 stainless steel
  • Flanges: Fully-machined 304 stainless steel
  • Springs: 17/7 PH stainless steel
Mechanical Data: Garrett Vent | External Wastegates are created by the engineers that designed G-Series and GTX Gen II turbochargers. Available in three sizes: 40mm, 45mm and 50mm.
  • Valve diameter: 45mm
  • Valve mass: 1,47kg (52oz)
  • Max spring base pressure: 1,6 bar (23 psi) 1:1 backpressure ratio
  • Minimum spring base pressure: 0,2 bar (3 psi) 1:1 backpressure ratio
  • Port fitting | air: M10x1,0 to hose barb (hose ID 6mm / 0.25")
  • Port fitting | water: M8x1,0 to AN-3
  • Max thermal stress (non-cooled): 270°C actuator body temp during thermal cycle test
  • Max thermal stress (liquid-cooled): 130°C actuator body temp during thermal cycle test
  • Max exhaust temp | peak: Up to 1050°C
Wastegate springs: GVW45 wastegates are set to 1,0 Bar (14.5 psi) of base pressure and can be configured from 0,2 Bar (2.9 psi) up to 1,6 Bar (23 psi), considering 1:1 backpressure. Use the chart to reference wastegate size and spring color to identify Garrett GVW wastegate spring pressures.

Wastegate Flange Specs: GVW-45 Wastegate flanges can be referenced:
  • GVW-45: Inlet OD 63.5mm (2.50in), Outlet OD 55.4mm (2.18"), interchangeable with Tial MV-R
Package contect:
  • Springs
  • V-Band: inlet and outlet clamps
  • Outlet flange
  • Inlet flange
  • Valve Seat
  • Washers: M8 | M10
  • Water fittings
  • Banjo bolt and banjo fittings
  • Air plugs