POL-TU-08 Sleeve for valve seats (49.50/35.50x120mm), id: 5566

Material for valve seats for use in engines powered by: Gas (LPG) Diesel gasoline Hardness: 36HRC - 40HRC Dimensional tolerance: internal diameter -0.50mm external diameter +/-0.30mm length -15.00mm To meet the expectations of our customers, we offer a new product "Bushings "for valve seats" in the form of semi-finished products intended for the production of professional valve seats that meet all operational standards. Due to its properties, the offered material is particularly recommended for use in the heads of diesel engines and LPG-powered engines. The material is made by precision casting, and in order to obtain perfect axiality, the sleeves are pre-turned to the dimensions given in the catalogue. The quality of valve seats and their operational durability depends on: - the chemical composition of the material, taking into account the optimal content of chromium, nickel, tungsten and vanadium, among other elements, - production technology using precision casting to prepare the initial product from which the valve seats are made, - processing thermal insulation, ensuring operational stability at high temperatures and resistance to thermal fatigue of valve seats.

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•POLOK Sp. z o. o