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Engine Valves

engine-valves-2 CTP Bimetallic & Trimetallic Valves
The CTP bimetallic operation for the engine valves is extremely important. The valves are welded using a friction welding machine that merges the two pieces of material (Austenitic on the head and Martensitic on the stem). The process gives the valves a higher resistance to the high temperature of the engine. This is especially necessary for the exhaust engine valves which are always stressed by higher temperatures compared to the intake valves.For the CTP trimetallic valves, Stellite (metal alloy) is welded on the seat of the valve to improve its endurance. The seat, especially on the exhaust valves, is subject to not only a chemical corrosion but to a mechanical corrosion too. The Stellite gives the seat a higher hardness (better resistance to the mechanical stress) and the type of Stellite (cobalt base Stellite) gives the seat a higher resistance to the chemical corrosion. engine-valves-3
Engine Valves
Engine Model/ Application Part No. In-Take Valve Part No. Exhaust
621 7S2514 1S2903
1673 7M7358 9M4163
3046 2335469 2335470
3054 2W6988 7W2522
3066 5I7738 5I7739
3116 1614280 1360819
3208 9L7682 9L7683
3306 1007860 1487455
3406 1152368 1152367
3408 1220322 1220321
3500 1047184 1047184
3500 1302608 1944897
3500 2102542 2102529
3500 7E4609 7E4609
1674/6 2S8143 1S2903
3054, 3056 1004626 7W4602
3054, 3056 1456855 1456857
3054, 3056 1456855 1382050
3054, 3056 1382052 1382050
3054, 416B 6I0282 7W4602
3066 MHI 320C 2128477 5I7739
3126E 1457390 1478211
3204, 910, 953 9N0180 9N0185
3208 Turbo 9L7682 9N5125
3304, 3306 1007860 1487455
3304, G3306 2W2621 8N0875
3306 Gas 7W7490 7W7491
3406E 1528380 1527585
3406E, C15/16 1537023 1537024
416C, 3054 6I1196 7W4602
977, D5 5S6452 5S7232
C10, C12 1929213 1337029
C-10, C-12 7E9578 1337029
C9 1632442 1883122
D315, D318 6H3026 4F0212
D342 1W1818 1W1819
D342 8H1993 8H1994
D343, D346 1P0407 7E7830
D353 7M7817 8N3723
D379, D398, D399 1W8606 2W3211
D6D, 14G, 120G 6N9915 1487455
G3306 4W1670 2W2877
G3406/8 1227353 1018314
G3408 4W5374 2W2443
G3408C 2120932 2120933
G399 7M7817 5S5323
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* Other part no. not included in the list are available. Please contact your sales representative if you have any questions. Part Numbers are used for reference purposes only

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