Product details：
NB / T47017 selection of pressure vessel mirrors:
According to the actual use of pressure vessels, appropriate pressure vessel mirrors shall be selected respectively. The main factors are the corrosivity of the medium, the service pressure and temperature of the vessel.
(1) Liquefied gas pressure vessels containing flammable, highly toxic and highly hazardous media shall adopt small-diameter container mirrors with high temperature and high pressure, and shall be equipped with protective devices to prevent leakage.
(2) The low-pressure container adopts the low-pressure mirror, and the diameter can be larger.
(3) For containers used outdoors in cold areas, or due to the large difference between medium temperature and ambient temperature, window materials with high sudden change temperature shall be selected. For example, tempered borosilicate glass, high borosilicate glass and quartz glass
(4) The pressure vessel mirror also has the option of lamp mirror. In the position of the vessel with insufficient light, the corresponding explosion-proof lamp pressure vessel mirror can be selected according to the specific explosion-proof grade.
Product introduction:
Mobile phone / Wechat: 18695915113
Tel: 0373-581 6003
QQ: 1513823724
[name]: flange mirror
[introduction]:
Flange sight glass is also called flat welding flange sight glass. Flat welding sight glass is one of the main accessories on industrial equipment. In the containers of industrial production devices such as petroleum, chemical industry, medicine and food, the sight glass can observe the flow and reaction of liquid, gas, steam and other media in the containers at any time, so as to monitor production and avoid accidents in the production process.
[shell material]:
Carbon steel WCB, 20# carbon steel, Q235, stainless steel 304, 201, 316, 316L
[Specification]
DN50 / 2 ", DN65 / 2.5", DN80 / 3 ", DN100 / 4", DN125 / 5 ", DN150 / 6"
DN200 / 8 ", DN250 / 10", DN300 / 12 ".
[instructions for use]
When ordering, you must communicate with the customer service about the specification, model, working pressure, temperature, material and special requirements. It can be processed with drawings and customized without standards. Note; Customized products are not refundable.
Nb / T47017 pressure vessel mirror standard was issued by the National Energy Administration on July 1, 2011 and implemented on October 1 of the same year
Nb / T47017 pressure vessel mirror standard has finally combined hgj51-502-1986 pressure vessel mirror, Hg / t21575-1994 illuminated mirror, Hg / t21505-1992 combined mirror and other styles into one style. Great improvements have been made and DN200 mirror specifications have been added; The use pressure of some mirrors is increased; The mirror flushing hole is cancelled and the flushing device is adopted with reference to foreign standards; The specification of mirror with spotlight is added; Requirements for mirror marking and transportation packaging are added.
Nb / T47017 main technical parameters of pressure vessel mirror:
Main material: carbon steel WCB, stainless steel 304, 321, 316, 316L.
Window material: tempered glass, tempered borosilicate glass and quartz glass.
Sealing material: nitrile rubber, polytetrafluoroethylene.
Working pressure (MPA): ≤ 2.5
Operating temperature (℃): 0 ~ 200 ℃ - 1300 ℃