Hebei Haihao Group

  • Types of spectacle flanges

    Types of spectacle flanges

    The spectacle blind flange(what is a spectacle flange?) is made of two pieces metal discs which are joint together by a part of steel handle.The spectacle flanges have three types in Haihao Group: Spectacle Blind Flange Drawing The most regular used specta ...
  • The advantage of pipe grooved ends joints

    The advantage of pipe grooved ends joints

    A grooved end joint is a mechanical connection,no welding,no thread.It’s fromed with a grooved-end pipes,fittings or valves,and a victualic coupling (or Equal). The advantage of pipe grooved ends joints,as follows: 1.The pipes are grooved by rolled g ...
  • The usage of pipe grooved ends joints

    The usage of pipe grooved ends joints

    A grooved end joint is a mechanical connection,which has no welding or thread.It’s fromed with a grooved-end pipes,fittings or valves,and a victualic coupling (or Equal). (The pipe end types of steel pipe and pipe fittings) The coupling comprises thr ...
  • The Meaning and Type of Steel Pipes

    The Meaning and Type of Steel Pipes

    Steel pipe is a hollow tube with round cross section for the conveyance of products. It is widely used in construction industry, a variety of manufacturing and industrial applications. In plumbing systems, steel pipe can be used to transport liquids and ga ...
  • What is a bevel end?

    What is a bevel end?

    Hebei haihao group piping solutions team can supply the steel pipes and fittings products with various ends as per your design request. Bevel end is one of the most common pipe ends for the steel pipe and pipe fittings.Bevel End is abbreviated on drawings ...
  • The pipe and fitting ends in piping system joint

    The pipe and fitting ends in piping system joint

    A pipe or fitting may have different type of ends on both ends,for example,one end is plain end and the other is threaded end, or one end is socket weld and the other end is threaded, or one end is NPT thread and another is BSPT standard thread. NPT SCHXS ...
  • The pipe end types of steel pipe and pipe fittings

    The pipe end types of steel pipe and pipe fittings

    Pipe end means the end types of steel pipes or steel pipe fittings,it decides the connection method of a steel pipe in a plumping or industry piping system. There are mainly four types of the pipe ends in Hebei Haihao Group:Plain end (PE),Beveled end (BE), ...
  • What is forged pipe fittings?

    What is forged pipe fittings?

    The forged pipe fitting is means that a pipe is through the technology of forging.Commonly the forged pipe fittings includes:socket weld pipe fittings and threaded pipe fittings. A105-Forged-Socket-Weld-Elbow Forged Pipe Fittings Standard: We supply forged ...
  • The tolerance of butt welding pipe fitting products

    The tolerance of butt welding pipe fitting products

    A butt welding pipe fitting means the pipe fitting which has the connecting end for butt welding.Commonly the butt welding pipe fitting products includes elbows,tees,reducers, caps,paddles,stub ends,crosses,hot induction bends.The butt welding pipe fitting ...
  • Application and advantage of butt welding pipe fittings

    Application and advantage of butt welding pipe fittings

    Hebei Haihao Group is one of biggest manufacturers specialized in the production of butt welding pipe fittings,forged pipe fittings,steel pipes,flanges products.Our butt welding pipe fitting products include:pipe elbow,pipe tee,pipe reducer,pipe cap,bend,c ...
  • What's the butt welding pipe fittings?

    What’s the butt welding pipe fittings?

    A pipe fitting has the connecting end for butt welding,we call it a butt welding pipe fitting. The butt welding pipe fittings are used to connect with pipes or fittings with a same size and same schedule butt welding ends. The ends of the butt welding pipe ...
  • What is butt welding mean?

    What is butt welding mean?

    The method of butt welding is a welding joint.In the process of butt welding,material together two parts in one line is parallel along the edge.Butt welded joints can be made by a large continuous or portable welding machine operation.Butt welded joint is ...
  • The 21th Iran oil show is started in Tehran

    The 21th Iran oil show is started in Tehran

    The 21th Iran oil show in Tehran is started,which held at 5-8,May,2016. Hebei haihao group bring the sample products and company catalogues to the exhibition.We are in the hall 38th, booth No. 1738-1. The-21th-Iran-oil-show-in-Tehran-is-started haihao-gr ...
  • How to choose the type of stainless steel pipe fitting?

    How to choose the type of stainless steel pipe fitting?

    Because stainless steel pipe fitting is their condition in a variety of different joint designed to work, and therefore needs to choose a suitable pipe fitting type, in order to achieve the best use of join performance. Mainly reflected in the characterist ...