Chemical Industry Standard of the People's Republic of China Glass Finned Thermometer Cover Subject Content and Scope of Application HG/T2058.2-91 This standard specifies the structure and assembly type, parameters, main dimensions and technical requirements of pond glass finned thermometer covers. This standard is applicable to finned thermometer covers for pond glass stirring vessels with nominal pressure less than or equal to 1.0MPa, medium temperature higher than -20C and lower than or equal to 200C, and equipped with paddle or impeller agitators. 2 Reference Standards GB700 Carbon Structural Steel GB5679 Mallet Cast Iron Hydraulic Pressure Test of Pond Glass Equipment Method GB7994 GB7996 Nominal volume and nominal diameter of glass containers GB8163 Seamless steel pipe for conveying fluids ZBG94004 Technical conditions for glass equipment HG2-538 Polytetrafluoroethylene plates, rods, fillers, drawing specifications and uses HG/T2050 Gaskets for glass equipment HG/T2105 Slip-on flanges for glass equipment 3 Types, basic parameters and main dimensions 3.1 The finned thermometer sleeve structure is divided into two types, Type A and Type B. Type A is a finned thermometer sleeve without an overflow measuring head device. Its basic parameters and dimensions are shown in Figure 1, Table 1, Table 2 and Table 4. Type B is a thermometer sleeve with a temperature measuring head device. Its basic parameters and dimensions are shown in Figure 2, Table 2, Table 3, and Table 4. 3.2 Marking: Standard number Thermometer sleeve length L Nominal diameter of the thermometer sleeve dN Nominal pressure of the container PN Type of the thermometer sleeve Name: Thermometer sleeve Example: Fin without temperature measuring head device Type thermometer sleeve, the nominal pressure PN of the container is 0.6MPa, the nominal diameter dN of the thermometer sleeve is 65mm, and the height H is 1350mm. Mark: Thermometer sleeve A0.6×65-1350HG/T2058.2--91. Approved by the Ministry of Chemical Industry of the People's Republic of China on July 6, 1991, and implemented on January 1, 1992 Surface sugar glass HG/T 2058.291 M27×2 HG/T2058.2-91 Surface treatment glass HG/T2050-91 HG/T2105--91 GB5782—86 GB617086 GB 97.1—85 Nominal diameter of thermometer sleeve Matched pipe port Nominal diameter HG/T2058.2—91 Loop flange Details Table 2 Size table KTH350 or Q235-A Assembly Q235-A Sugar glass See Table 2 ①A-type finned overflow gauge sleeve dN32 specification. The end reducer @25×3.5 can be cancelled, and the inner @32×4 pipe is manufactured for direct sealing, but the height H is not noted: ③B-type finned thermometer sleeve has no dN32 specification. 128 HG/T205091 HG/T2105-91 GB5782-86 GB6170-86 GB 97.1—85 GB985.1-86 GB123576 WEPM-0.18||tt ||HG/T 2058.2-- 91 Details Junction boxwwW.bzxz.Net Loop flange Wire retaining ring O-ring 28×3.5 Thermometry head sleeve Compression spring 0.8×8×30 Ceramic end face platinum resistor Assembly KTH350 or Q235-A Assembly Q235-A Spectrum glass||tt| |Q235-A Polytetrazolyl Red paper cypress Assembly See Table 2 Nominal diameter Mixed mixing vessel Volume VN Nominal diameter DN L series S series HG/T2058.2-91 Table 4 Dimension table Reference weight, kg Nominal pressure, MPa Equipped with paddle stirrer Equipped with impeller stirrer Nominal diameter Equipped mixing container Volume VN 4 Technical requirements Nominal diameter DN L series S series HG/T2058.291 Continued Table 4 4.1 The steel pipe material used for the glass casing is No. 10 steel, which is accepted according to the provisions of GB8163. 4.2 According to the technical conditions of the glass fin thermometer sleeve, the reference weight is kg and the nominal pressure is MPa . 4.3 After the B-type fin thermometer sleeve is assembled, the test pressure after the glass is weighed as specified in Table 1 of GB7994 standard is carried out together with the installed equipment for water pressure test. The test pressure is the nominal pressure of the installed container. The test result should be leak-free. The material of the temperature measuring head sleeve can be provided according to the needs of the user, but it must be resistant to corrosion by the working medium. 4.4 5 Packaging, transportation and storage 5.1 The sugar glass surface should be wrapped with soft objects and firmly fixed in a wooden box. 5.2 No collision is allowed during handling or transportation, and the packaging box shall not be inverted. 5.3 The product should be accompanied by a packing list, a certificate of conformity and an instruction manual. 5.4 The product should be stored indoors and shall not be stacked or inverted in the open air. 131 Additional Notes: HG/T2058.2—91 This standard was proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the National Standardization Technical Committee for Glass Equipment. This standard was drafted by Shanghai Industrial Glass Porcelain Factory, and the Shanghai Pharmaceutical Design Institute of the State Drug Administration participated in the drafting. The main drafter of this standard was Gu Guoyang, and the participating drafters were Bao Aiyuan and Huang Yinhua.132 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.