Check valve Full flow - TuunerStuudio https://tuunerstuudio.ee/en/tootekategooria/an-liited/speeding-an-liited/an-liitmikud-voolikud/an-liitmikud/uhesuunaline-klapp-taisvool/ Thu, 19 Mar 2026 16:11:46 +0000 en-US hourly 1 https://tuunerstuudio.ee/wp-content/uploads/2024/10/462539801_1749936732446472_7806435627202146352_n.png Check valve Full flow - TuunerStuudio https://tuunerstuudio.ee/en/tootekategooria/an-liited/speeding-an-liited/an-liitmikud-voolikud/an-liitmikud/uhesuunaline-klapp-taisvool/ 32 32 SPD V2 Check Valve Full flow AN6 https://tuunerstuudio.ee/en/toode/spd-v2-uhesuunaline-klapp-taisvool-an6/ Tue, 10 Feb 2026 18:53:59 +0000 https://tuunerstuudio.ee/?post_type=product&p=33262 The post SPD V2 Check Valve Full flow AN6 appeared first on TuunerStuudio.

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]]> SPD V2 Check Valve Full flow AN8 https://tuunerstuudio.ee/en/toode/spd-v2-uhesuunaline-klapp-taisvool-an8/ Tue, 10 Feb 2026 18:52:04 +0000 https://tuunerstuudio.ee/?post_type=product&p=33261 The post SPD V2 Check Valve Full flow AN8 appeared first on TuunerStuudio.

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]]> SPD V2 Check Valve Full flow AN10 https://tuunerstuudio.ee/en/toode/spd-v2-uhesuunaline-klapp-taisvool-an10/ Tue, 10 Feb 2026 18:46:37 +0000 https://tuunerstuudio.ee/?post_type=product&p=33259 Can be used for fuel, oil, water, and air systems.

Thread: AN10 on both sides
This check valve does not throttle the flow.
Opening pressure: ~0.14 bar / 2 PSI

Measurements:
Key socket: 31.5 mm
Largest diameter: 36 mm
Total length: 74 mm

Areas of use:

Staged activation of fuel pumps
When using two or more fuel pumps that do not run all the time but are activated gradually, a non-return valve is mounted to prevent fuel from being pushed back to the fuel tank, making it harder for the primary pump to maintain pressure.

Keep fuel in spreader bridge
When the engine is switched off, fuel slowly flows back to the tank, and the fuel bridge empties. This introduces air into the fuel system and makes the engine difficult to start. With a mounted non-return valve, fuel always remains, and the engine starts easily.

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]]> SPD V2 check valve full flow M12x1.5 – AN8 black https://tuunerstuudio.ee/en/toode/spd-v2-check-valve-full-flow-m12x1-5-an8-black/ Fri, 11 Oct 2024 10:52:16 +0000 https://tuunerstuudio.ee/uuswp/?post_type=product&p=22 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.

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]]> SPD V2 check valve full flow AN6 – AN8 black https://tuunerstuudio.ee/en/toode/spd-v2-check-valve-full-flow-an6-an8-black/ Fri, 11 Oct 2024 10:52:16 +0000 https://tuunerstuudio.ee/uuswp/?post_type=product&p=23 SPD V2 is the latest check valve. These check valves have a completely new construction that differs from everything else on the market. The check valve can handle very high flow and back pressure because of the design of internal components. These check valves are specially designed to handle all fuels and air. The check valve is designed to handle ethanol, so internal components have been adapted to this. This is a full flow design that does not limit flow.

SPD full flow check valve can be used where you have several parallel fuel pumps starting in a specific order.

This check valve maintains fuel pressure when the engine is turned off to shorten crank time.

AN6 - AN8 male thread.

This check valve is full flow.
This check valve makes the car easier to start as it keeps the fuel pressure when the car is switched off.

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