HG/T 3124-1998 Technical requirements for mechanical seals for welded metal bellows kettles HG/T3124-1998 Standard download decompression password: www.bzxz.net

ICs71.120,21.140
Record number 1983-1998
Chemical Industry Standard of the People's Republic of China
HG/T 3724—1998
Welded Metal Bellows Mechanical Seal for Agitators
Technical Conditions
Specifications of welede metal bellowsmechanical seal for agitators1998-03-17 Issued
1998-10-01 Implementation
The Ministry of Chemical Industry of the People's Republic of China issued WHG/T3124—1998
The structural type of this standard product mainly refers to the structural type of mechanical seal for agitators of BURGMANN, Germany. The main dimensions of the product are based on DIN28138-83 (Part 1) "Working Parameters and Assembly Dimensions of Carbon Steel and Stainless Steel Agitator Shaft End Seals", with 6 additional specifications and 1 modified specification. This standard is proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the Chemical Industry Ministry's Special Chemical Seals Standardization Technical Committee. Drafting units of this standard: Shanghai Bokman Co., Ltd., Shazhou Institute of Technology Mechanical Seals General Factory. The main drafters of this standard: Yu Longhai, Jiang Yunfei, Sheng Jianhua. W.bzsosocom Customer Standard Industry Data Free Download 1 Fan Dou
Chemical Industry Standard of the People's Republic of China
Technical Conditions of Welede Metal Bellows Mechanical Seals for AgftatorsHG/T 3124-1998
This standard specifies the classification, requirements, inspection rules and delivery preparation of mechanical seals for welded metal bellows. This standard is applicable to various steel vertical reaction agitator shafts and similar rotary pumping mechanical seals. The sealing medium is various fluids without solid particles. The working parameters are: individual pressure is divided into -1~1.6MPa (gauge pressure) (single-layer wave plate) and 0~2.5MPa (gauge pressure) (double-layer liquid sheet): medium humidity is -200~300℃; the outer diameter of the shaft (or rotating sleeve) of the sealed part of the liquid sealing machine is 30~160mm, and the axis speed of the rotating shaft is not more than 5m/s. Reference documents
The following standards contain provisions that constitute the provisions of this standard by citing them. When this standard was published, the versions shown were all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest version of the following standards: HG 2099--91
HG 21563-95
HG/T 2122—91
HG/T 226992
JB/T 6373—92
JB/JQ 22401-B8
3 Classification
3.1 Type
a) Type 231
b) Type 232
Test specification for mechanical seals for kettles
Combination, selection and technical requirements for agitator transmission system
Auxiliary devices for mechanical seals
Technical conditions for mechanical seals for peripheral use
Technical conditions for mechanical seals for welded gold screen bellowsQuality classification of medium and light mechanical sealsSingle seal
Double seal
3.2 Structure and main dimensions
Single seal for inner day bearing.
Double seal for inner love bearing.
The seal used in this standard is a top dynamic mounting structure, balanced type, and can rotate in both directions. The structure type is shown in Figure 2 and Figure 3, and the main dimensions are shown in Table 1.
The end seal of this standard does not necessarily have to be consistent with the diagram, but the dimensions given must be followed. The end drive method of Chang Jun is shown in Figure 1.
Approved by the Ministry of Chemical Industry of the People's Republic of China on March 17, 1998 and implemented on October 1, 1998
Type 231
HG/T3124-1998
Common top drive
Figure 2 Single end seal device
Type 231L
Wu Various American standard industry information Free download of materials 232 type
HG/I3124-1998
Figure 3 Double end face sealing device
232L type
M. Nominal
4 Requirements
HG/T3124-1998
Main overall dimensions
Not greater than
Not greater than
Not greater than
Not less than
4.1 The technical requirements for welded metal bellows mechanical seals for the medium end shall comply with 4.1 and 4.2 of J3/T6373-92. 4.2 Technical requirements for mechanical seals for atmospheric end use shall be in accordance with 4.2 of HG/T2269-92. 4.3 Performance requirements
4.3.1 Leakage
a) When the sealed medium is liquid, the average leakage of field use and operation test shall be in accordance with the provisions of Table 2. ml/h
Shaft (or sleeve) outer diameter
b) There should be no leakage in the static pressure test.
4.3.2 Wear
Average wear
Operation test
Field use
Liquid sealing interface
G1/2"
G1/2"
The wear of the end face of the mechanical seal shall meet the requirements of the service life of the mechanical seal. When tested with clean water, the wear of the end face of any sealing ring shall not exceed 0.02mm after 100h of operation. 4.3.3 Service life
According to 5.3 of HG/T2269-92.
4.4 Installation and use requirements
The stirring transmission device shall comply with the provisions of HG21563. Other requirements shall comply with Chapter 7 of HG/T2269-92. When the temperature of the conveying medium is too high or too low or contains impurities or flammable and explosive gases and other special working conditions, corresponding blocking, flushing, cooling, filtering and other measures must be adopted. 4
W. The specific requirements shall comply with HQ/T2212.
4.5 Product marking and packaging requirements
HG/T 3124-1998
4.5.1 The manufacturer or trademark mark of the product shall be printed in an obvious position that does not affect installation and use. 4.5.2 Each set of products in the packing box (box) should have a certificate of conformity, which should include the product model, specifications, quantity, manufacturer name, signature and date of the inspection department and inspector. wwW.bzxz.Net
4.5.3 Each set of products in the packing box (box) should have technical documents such as instruction manual, packing list, spare parts list, etc. The words "handle with care" should be marked on the outside of the box.
4.5.4 The product should be packaged in soft packaging, such as sponge, foam plastic and other materials to prevent damage during transportation. 5 Inspection rules
5.1 Sampling regulations for quality inspection
a) The inspection items of products and the number of inspected products shall be as specified in Table 3. 6) The number of samples for each batch of products during sampling shall be as specified in Table 4. Table 3 Inspection items and number of inspected products serial number
Inspection Inspection items
Disassembly inspection
Static pressure test
Operation test
Marking and packaging
Table 4 Number of product samples
Product category
Single-end welded metal bellows mechanical seal Double-end welded metal bellows mechanical seal 5.2 Inspection method
Number of products per test
Number of product samples
5.2.1 Inspection of welded metal bellows components
|tt||According to the provisions of 5.2 of B/T6373-92, the results shall comply with the provisions of 3.1 5.2.2 Inspection of main parts
According to the provisions of Appendix Table A1 of JB/JQ22401-88, the disassembly test items and requirements for each set of medium-sized mechanical seals, the qualified rate shall meet the requirements of Table 5.
Main items
Key items
Table 5 Disassembly test corresponding level items qualified rate qualified rate
No Qualified items should not affect product performance
5.2.3 Product inspection
Product inspection includes type inspection and factory inspection. Type inspection and factory inspection should include partial pressure test and operation test. The test content, test conditions, test equipment, test instruments and meters should be carried out in accordance with HG2099 requirements. The product inspection results should meet the requirements of 4.3.［ and 4.3.2. 6 Delivery preparation
6.1 Packaging
6.1.1. The markings on the packaging box shall include the following: a) Product name, model, quantity:
b) Contract number;
) Total weight:
HG/T3124—1998
d) Detailed address, postal code, and full name of the consignee; e) Manufacturer’s name:
f) Moisture-proof, Handle with care, etc.
6.1.2 The markings on the packaging box shall include:
a) Product name, model, quantity,
b) Identification mark;
c) Factory date, manufacturer’s name,
6.1.3 Products shall be cleaned, dried, and rust-proofed before packaging 6.1.4 Products or spare parts shall be placed in a packaging box with a moisture-proof layer and in soft packaging, which shall be able to prevent deformation, damage, rust, and loss during transportation, storage, and handling.
6.1.5 The packaging box should be firm and reliable.
6.2 Delivery technical documents
6.2.1 The packaging box should be accompanied by a product certificate. 6.2.2 The packaging box should be accompanied by a packing list and product instructions (which should be packed in a moisture-proof bag). People's Republic of China
Chemical Industry Standard
Mechanical Seal Technical Parts for Welded Metal Bellows Kettles HG/T3124—1998
Editor China National Chemical Equipment Corporation
Postal Code 100011
Printer Beijing University of Chemical Technology Printing Factory
All rights reserved. No reproduction allowed
Format 880×[230
1/16 Printing Sheet 0.75 Words 13.5 Words
First Edition September 1998
First Printing September 1998
Print Quantity 1→150
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