← Back Bergen B01051339 Valve exhaust

The code B01051339 identifies the exhaust valve. This is exactly the "mushroom-shaped" component (with the long stem and flat base) that you showed me earlier in the picture of the packaging.

The function of this valve is to open to allow the expulsion of combustion gases from the cylinder, and then close to seal the chamber for the next cycle. Because it is directly exposed to the exiting exhaust gases, it operates in an extreme environment, facing exceptionally high temperatures and highly corrosive chemical agents.

To withstand these conditions without warping, cracking, or melting, this valve is forged using high-heat-resistant "superalloys" (often nickel-based or featuring hardened Stellite coatings). During operation, the head of this valve forcefully seats and seals perfectly against the valve seat (code B01051235), dissipating a portion of its extreme heat through that physical contact.