Supapă cu glob Hastelloy C276, 150 LB, 2 inch, capăt RF
Hastelloy alloy globe valve is a type of nickel based alloy, currently mainly divided into three series: B, C, and G. It is mainly used in strong corrosive media such as iron-based Cr-NI or Cr-Ni-Mo stainless steel, non-metallic materials, etc. It has been widely used in many fields such as petroleum, chemical, and environmental protection abroad.
Standard de proiectare: ASME B16.34
Evaluări presiune-temperatura: ASME B16.34
Interval de dimensiuni: de la 2” la 48”
Interval de presiune: Clasa 150 până la 2500
Conexiuni la capăt: RF cu flanșă, RTJ, sudare cap la cap
Dimensiuni de capăt cu flanșă: ASME B16.5 (≤24”), ASME B16.47 Seria A sau B (>24”)
Dimensiuni capăt de sudare cap la cap: ASME B16.25 față în față
Dimensiuni față în față: ASME B16.10
Inspecție și testare: API 598
Materiale caroserie: ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M, ASTM A351 CF8C
CN3MN, CK3MCUN, CN7M, ASTM A890 4A(CD3MN), ASTM A890 5A(CE3MN),
ASTM A890 6A(CD3MWCuN)
ASTM B148 C95800, ASTM B148 C95500.
Materiale de ambalare: Ptfe, PPL, grafit, grafit cu sârmă inconel
Hastelloy alloy globe valves are currently mainly divided into three series: B, C, and G. They are mainly used in strong corrosive media such as iron-based Cr Ni or Cr Ni Mo stainless steel, non-metallic materials, etc. that cannot be used. In order to improve the corrosion resistance and cold and hot working performance of Hastelloy alloy, Hastelloy alloy has undergone three major improvements, and its development process is as follows: B series: B → B-2 (00Ni70Mo28) → B-3
C series: C → C-276 (00Cr16M016W4) → C-4 (00Cr16M016) → C-22 (00Cr22M013W3) – C-2000 (00Cr20M016) G series: GG-3 (00Cr22Ni48Mo7Cu) G-30 (00Cr30Ni48Mo7Cu) Previously used * Widely used are second-generation materials N10665 (B-2), N10276 (C-276), N06022 (C-22), N06455 (C-4), and N06985 (G-3). Hastelloy has excellent corrosion resistance for globe valves. A N-MO alloy with extremely low carbon and brick content, which reduces the precipitation of carbides and other phases in the weld and heat affected zone, ensuring good corrosion resistance even in the welded state. As is well known, Hastelloy alloys have excellent corrosion resistance in various reducing media, and can withstand corrosion by hydrochloric acid at any temperature and concentration under normal pressure. It has excellent corrosion resistance in non inflating medium concentration non oxidizing sulfuric acid, various concentrations of phosphoric acid, high-temperature acetic acid, formic acid and other organic acids, bromic acid, and hydrogen chloride gas. At the same time, it is also resistant to the corrosion of halogenated catalysts. Therefore, Hastelloy B-2 alloy is commonly used in various harsh petroleum and chemical processes, such as distillation and concentration of hydrochloric acid; In the production process of alkylation of ethylbenzene and low-pressure carbonylation synthesis of acetic acid.
