Nuus

Nuus

  • Company introduction

    Hebei Liyong Flowtech Co., Ltd. is a leading manufacturer and exporter of valves, fittings, flanges, pipes and other piping products. Our company is located in the North China Plain of China, which is rich in resources and rich in industrial heritage. We specialize in the manufacture of a wide ra...
    Lees meer
  • kleppe

    A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an...
    Lees meer
  • Gietmateriaal van kleppe

    Casting Materials of Valves ASTM Casting Materials Material ASTM Casting SPEC Service Carbon Steel ASTM A216 Grade WCB Non-corrosive applications including water, oil and gases at temperatures between -20°F (-30°C) and +800°F (+425°C) Low Temp Carbon Steel ASTM A352 Grade LCB Low temperatu...
    Lees meer
  • Ou en nuwe DIN -benamings

    Ou en nuwe DIN -benamings Deur die jare heen is baie DIN -standaarde geïntegreer in die ISO -standaarde, en dus ook deel van die EN -standaarde. Tydens die hersiening van die Europese standaarde is verskeie DIN -standaarde teruggetrek en vervang deur DIN ISO EN en EN. Die standaarde wat gebruik word ...
    Lees meer
  • Inleiding tot klepaktueerders

    Inleiding tot klepaktuators Klepaktuators Klepaktuators word gekies op grond van 'n aantal faktore, insluitende wringkrag wat nodig is om die klep te bedryf en die behoefte aan outomatiese aandrywing. Tipes aktueerders sluit in handwiel, handhefboom, elektriese motor, pneumatiese, solenoïde, hidro...
    Lees meer
  • Generiese merkstandaarde en -vereistes vir kleppe, toebehore, flense

    Generic Marking Standards and Requirements Component Identification The ASME B31.3 Code requires random examination of materials and components to ensure conformance to listed specifications and standards. B31.3 also requires these materials to be free from defects. Component standards and spec...
    Lees meer
  • Wringkragaandraai vir flens

    Torque Tightening To obtain a leak-free flange connection, a proper gasket installation is needed, the bolts must be assign on the correct bolt tension, and the total bolt strength must be evenly divided over the whole flange face. With Torque Tightening (the application of preload to a fasten...
    Lees meer
  • Flense Gaskets & Boute

    Flanges Gaskets & Bolts Gaskets To realize a leak-free flange connection gaskets are necessary. Gaskets are compressible sheets or rings used to make a fluid-resistant seal between two surfaces. Gaskets are built to operate under extreme temperature and pressures and are available in a wide ...
    Lees meer
  • Flens Gesig Afwerking

    Flange Face Finish Flange face finish The ASME B16.5 code requires that the flange face (raised face and flat face) has a specific roughness to ensure that this surface be compatible with the gasket and provide a high quality seal. A serrated finish, either concentric or spiral, is required wi...
    Lees meer
  • Flensvlakke

    Flange Faces What is a Flange face? Different types of flange faces are used as the contact surfaces to seat the sealing gasket material. ASME B16.5 and B16.47 define various types of flange facings, including the raised face, the large male and female facings which have identical dimensions to...
    Lees meer
  • Tipes flense

    Types of Flanges Flange types As already described before, the most used flange types ASME B16.5 are: Welding Neck, Slip On, Socket Weld, Lap Joint, Threaded and Blind flange. Below you will find a short description and definition of each type, completed with an detailed image. Most common flang...
    Lees meer
  • Drukklasse van flense

    Pressure Classes of Flanges Forged steel flanges ASME B16.5 are made in seven primary Pressure Classes: 150 300 400 600 900 1500 2500 The concept of flange ratings likes clearly. A Class 300 flange can handle more pressure than a Class 150 flange, because a Class 300 flange are co...
    Lees meer
123Volgende> >> Bladsy 1 / 3