全焊接的负球阀的碳钢的

TOPMOST full bore welded ball valve of carbon steel:all welded ball valve is used for pipelines of heat supply systems.compressed air pipes and oil-pipelines etc. industries pipe line.Configuration:Valve makes up of full welded valve body and teflon seal. Under the impact of impurity and chemistry, it can word long life. Skiving elaborateStainless steel ball can ensure open and close freely. Adopting floating ball structure, Hardened steel for springs manufacturing. Bevel washer makes seal pressing on ball tightly. Even when the pressure is not stable. Valve can be compactness.Peculiarity:1).No need for maintenance,adjustment and lubrication. It's easy fixing. It's works safely and long-term under low cost.2). We can do longer valve stem, it helps keeping warm.3). Operation handle can be dismantled and fixed on other side.4). Valve body doesn't contain heaviness and fallibility casting.5). It's very easy for fixed adjustable structure. Material list NONAME OF PARTSMATERIAL1BodyCarbon steelST37.82Stem bushCarbon steelFe52DP3BallStainless steelAISI3044StemStainless steelAISI3035SealingTeflonPTFE6Bevel washerHardened steel for springs manufacturing7Support ringStainless steel8Fixing screwSteel9O-ball seatVitonFPM10WasherTeflonPTFE11Thrust washerCarbon steel12HandleGalvanized steel Parameters(mm) DNPNLDD1D2AHBH1Weight(kg)Torque(N.m)15402101521.742.7129.01036422-3-420402302027.248.0159.01187623-5-725402602534.060.0159.01218534-8-1132402603242.776.0230.01209533-12-1840403004048.689.0230.012710043-25-3250403005060.5114.0300.017015944-38-4565253006576.3140.0300.018517071-55-6580253008089.1165.0400.021019277-110-12010025325100114.3216.0400.0253208102-200-25012525350125139.8219.0450.0273241101-300-34015025490150165.2355.0450.0300280107-450-48020025580200216.3356.0252.0345500123-750-80025025550250267.4457236572500122-900-95030025630300318.5508.0331.0697600155-1200-130035025762337355.6559331764600187-1900-200040025840387406.4660360810700221--500251010489508.0812413973800211-- Note: When the valve is equal to or greater than 125mm diameter, we suggest using gear operator.when lengthen stem,buried ball valve or valve installation is not at the direct operating place, you can eduip lengthen stem and pipe,according to your required size.