Information - Inlet Valves

The induction valve is the end point of the intake system. The air-fuel mixture, necessary for the proper functioning of the engine, is pushed through the induction valve into the combustion chamber. A camshaft controls the opening and closing of the induction valve. The structure of the metal of the induction valve (especially the bottom - "the plate") differs significantly from the one of the outlet valve. This is determined by different thermal conditions of functioning.

The power of the engine is directly proportional to the amount of the combustible mixture and fuel that enters the cylinder through the inlet valve, as well as the quality of the cleaning the cylinder from smog through the outlet (exhaust) valves. In order to improve the filling of the engine, the inlet valve diameter is larger than the one of the outlet valve. During descent, the flow speed of the wasted mixture is higher than at the intake of the fresh one, due to the fact that the smog is pushed out by a piston.

The diameter of the inlet valve deals with the possibility of placing it in the cylinder head, and the piston height - with the forces of the valve mechanism performance.

But it should not be too large in order to avoid installation of too strong valve springs, because this causes a great deterioration of the cams. The main elements of the valve became the head and the rod. In order to reduce the hydraulic losses during the in- and outlet, the passage from the valve head to the rod is very smooth. Valves are also affected by corrosion. Therefore, the material must always be resistant to wear out, because lubricating it is not satisfying.

If you want to extend the service life, the valve should be exposed to additional processing. To improve the properties and wear resistance of the valve stem, it needs to be treated with nitrogen or chrome. We always have high-quality induction valves in our online store, as well as outlet valves, axial joints or mirrors, all at very affordable prices.

Intake Valves at low cost: Top Spares

Inlet Valve Aspern (TOPRAN, 205 574)
-20%
Inlet Valve | TOPRAN 205 574 Article №: 205 574
TOPRAN Inlet Valve 205 574
£ 8,49
£ 6,79
incl. 20% VAT, Shipping
Over 100 items in stock
  • Length [mm] 93,8
  • Valve stem diameter [mm] 5
  • Valve head diameter [mm] 28
  • Number of grooves 3
Details
Inlet Valve (FRECCIA, R4864/S)
-20%
Inlet Valve | FRECCIA R4864/S Article №: R4864/S
FRECCIA Inlet Valve R4864/S
£ 10,49
£ 8,39
incl. 20% VAT, Shipping
Over 100 items in stock
  • Valve head diameter [mm] 32,9
  • Valve stem diameter [mm] 6
  • Length [mm] 106
  • Valve seat angle [°] 45
  • Material Chrome-silicon-steel
  • Connector type I
Details
Inlet Valve ADR (JP GROUP, 1111301100)
-20%
Inlet Valve | JP GROUP 1111301100 Article №: 1111301100
JP GROUP Inlet Valve 1111301100
£ 4,49
£ 3,59
incl. 20% VAT, Shipping
Over 100 items in stock
  • Valve head diameter [mm] 26.9
  • Valve stem diameter [mm] 6
  • Length [mm] 105.9
  • Number of grooves 3
Details
Inlet Valve (MAHLE ORIGINAL, 021 VE 30930 000)
-20%
Inlet Valve | MAHLE ORIGINAL 021 VE 30930 000 Article №: 021 VE 30930 000
MAHLE ORIGINAL Inlet Valve 021 VE 30930 000
£ 10,99
£ 8,79
incl. 20% VAT, Shipping
Over 100 items in stock
  • Fitting Position Intake Side
  • Valve head diameter [mm] 33,5
  • Valve stem diameter [mm] 5,5
  • Length [mm] 110,05
  • Valve seat angle [°] 45
  • Valve Seat Material Chrome-silicon-steel
Details
Inlet Valve (ET ENGINETEAM, VI0134)
-20%
Inlet Valve | ET ENGINETEAM VI0134 Article №: VI0134
ET ENGINETEAM Inlet Valve VI0134
£ 9,49
£ 7,59
incl. 20% VAT, Shipping
Over 100 items in stock
  • Valve head diameter [mm] 33,9
  • Valve stem diameter [mm] 6
  • Length [mm] 104
  • Valve seat angle [°] 45
  • Material Chrome-silicon-steel
  • Supplementary Article/Info 2 Chromed valve stem
  • Connector type I
Details
Inlet Valve (MAHLE ORIGINAL, 001 VE 31388 000)
Inlet Valve | MAHLE ORIGINAL 001 VE 31388 000 Article №: 001 VE 31388 000
MAHLE ORIGINAL Inlet Valve 001 VE 31388 000
£ 7,99
incl. 20% VAT, Shipping
Over 100 items in stock
  • Fitting Position Intake Side
  • Valve head diameter [mm] 30,5
  • Valve stem diameter [mm] 6,0
  • Length [mm] 105,4
  • Valve seat angle [°] 45
  • Valve Seat Material Chrome-silicon-steel
  • Surface Chromed
Details
Inlet Valve (AE, V94498)
-20%
Inlet Valve | AE V94498 Article №: V94498
AE Inlet Valve V94498
£ 7,49
£ 5,99
incl. 20% VAT, Shipping
Over 100 items in stock
  • Length [mm] 109,200
  • Material Chrome-silicon-steel
  • Supplementary Article/Info 2 Hardened valve seat, Valve stem tip hardened
  • Valve head diameter [mm] 32,400
  • Valve stem diameter [mm] 5,500
  • Valve seat angle [°] 45
Details
Inlet Valve AHW (AE, V94116)
-20%
Inlet Valve | AE V94116 Article №: V94116
AE Inlet Valve V94116
£ 9,49
£ 7,59
incl. 20% VAT, Shipping
Over 100 items in stock
  • Length [mm] 100,900
  • Material Chrome-silicon-steel
  • Supplementary Article/Info 2 Hardened valve seat, Valve stem tip hardened
  • Valve head diameter [mm] 29,500
  • Valve stem diameter [mm] 6,000
  • Valve seat angle [°] 45
Details
  • Top PriceSparepartstore24.co.uk guarantees high-quality car parts at very attractive prices.
  • Shipping costsSave on shipping cost. Free shipping on an order over £ 140 just for UK
  • Great delivery!You will receive your autoparts order within several working days
PayPal
VISA
Mastercard
American Express
Bank Transfer