J41H Forged Steel Globe Valve

One. Structure and characteristics

1. The stop valve should be used on the pipeline or device of high temperature and high pressure medium. Such as thermal power plants, nuclear power plants, high-temperature and high-pressure pipelines of petrochemical systems.

2. On pipelines that do not require strict convection resistance. That is, where the pressure loss is not considered.

3. For small valves, needle valves, instrument valves, sampling valves, pressure gauge valves, etc. can be used.

4. There is flow adjustment or pressure adjustment, but the adjustment accuracy is not high, and the diameter of the pipeline is relatively small, such as on a pipeline with a nominal passage of ≤50mm.

5. Small fertilizers and large fertilizers in synthetic industrial production should use high pressure angle stop valves or high pressure angle throttle valves with a nominal pressure of PN160 and a nominal pressure of 16MPa or PN320 and a nominal pressure of 32MPa.

6. In the desiliconization workshop of the alumina Bayer process and the pipelines that are prone to coking, it is easy to choose a direct-flow stop valve or direct-flow throttle valve with a separate valve body, a removable valve seat, and a cemented carbide sealing pair.

7. For water supply and heating projects in urban construction, smaller pipelines are nominally passed through, and cut-off, balance valves or plunger valves can be selected, such as pipelines with a nominal diameter of less than 150mm.

Two, standard specifications

Design and manufacturing standards: GB/T12235, APl602, BS5352, ASME B16.34.

Structure length standard: GB/T 12221-2005

Connection end standard: socket end meets ASME B16.11, threaded end meets ASME B1.20.1

Pressure temperature rating: GB/T 12224-2005

Test inspection standard: GB/T 13927-2008, APl598