Established in 1993, Guanfa Valve Manufacture Co., Ltd. is specialized China blow off valve manufacturer and distributor of valves, hoses, tubes and pipes. Our oem blow off valves are suitable for acid, alkali, water, steam, seawater, coal gas and natural gas. They are widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy. The use of specialized software of Pro/E and CAD has shorted the P&D and trial manufacture cycle, and greatly improved the service life and dependability of products. Our high-quality products have been exported to the North Amercia, UK, USA, Germany, Italy, India, France, Australia, Japan.

Twin-chamber blow-off valve utilizes a revolutionary new dual chamber engineered for high and low boost response. On turbocharged vehicles, blow-off valves release excessive boost pressure trapped inside the intake pipe when the throttle is released.This prevents the pressure from backing up into the turbine compressor housing, causing it to rapidly stop and causing potentially destructive damage to the turbo. Twin-chamber blow-off valve uses two separate chambers with an assisting pressure hose. This design allows for a short and highly sensitive spring in the first chamber that controls a piston and a valve in the secondary chamber. 3-point sound adjustment. Spring tension adjusting screw. Piston sits inside top chamber for reduced wear. Valve sits bottom chamber releasing excess pressure. Encased in high finish aluminum housing. Universal, and suitable for all types of turbochargers.

Pull-Type BOV designed to stay closed under boost
Detachable Re-Circulation Discharge and Interchangeable Flange
Includes Stainless Steel Weld-on Flange
Synapse Synchronic Blow Off Valve is the first to revolutionize the blow off valve industry. Unlike other blow off valves on the market, this BOV does not use a diaphragm which give it unparallel response and eliminates compressor surge. It features a pull type piston actuated design and poppet valve for maximum flow at initial opening. Includes stainless steel weld-on flange. Other flange available separately. For cars w/ MAF sensors discharging to atmosphere, an Anti-Stall Valve Kit is available separately. Every product is put through vigorous tests to ensure its compatibility as well as its durability. Our products have been tested from the mild to wild and have set many of the records you see in the sport compact industry. Keeping the sport compact market on its toes, we have always produced cutting edge designs, often imitated yet never duplicated.

Go to China Valve Manufacturer Catalog or China Valve Catalog to find more China Products!