SPD V2 check valve full flow M12x1.5 – AN8 black

SPD V2 check valve full flow M12x1.5 – AN8 black. SPD V2 is the latest check valve with a completely new construction that differs from all others on the market. It is fully sealed and can withstand very high pressures and back pressures. These check valves are specially designed to handle all fuels and air. The non-return valve is developed to handle ethanol, so internal components have been adapted accordingly. This is a full-flow construction that does not restrict flow. SPD full-flow check valve. Used, among others, for Bosch 044 fuel pumps if you have several that are PWM controlled.

This check valve prevents fuel pressure backup before the second or third fuel pumps start.

M12x1.5 – AN8

This check valve does not restrict flow. It makes the car easier to start by maintaining fuel pressure when the car is turned off.

Dimensions: Key socket: 25.2mm Largest diameter: 29mm Total length: 62mm

Applications:

• Staged fuel pump activation: When using two or more fuel pumps that do not run continuously but are activated gradually, this check valve prevents fuel from being pushed back to the tank, making it harder for the primary pump to keep the pressure up.
• Fuel retention in the fuel bridge: When the engine is turned off, fuel slowly returns to the fuel tank and the fuel bridge empties. This introduces air into the fuel system, making the engine harder to start. With the check valve installed, there is always fuel left, and the engine starts easily.