HG/T 2192-1991 Sandblasting Rubber Hose HG/T2192-1991 Standard Download Decompression Password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Sandblasting rubber hose
This standard refers to and adopts the international standard ISO3861~77 "Sandblasting rubber hose" 1. Content and scope of application
This standard specifies the model, specification, technical requirements and test methods of sandblasting rubber hose: HG 2192-91
This standard is applicable to sandblasting rubber hose (hereinafter referred to as hose) used for air pressure sandblasting to remove rust and hemp on metal surfaces. Reference standards
GB 1689
Determination of wear resistance of vulcanized rubber (using Akron abrasion machine)GB5562Physical test method for rubber hose adhesive layerGB5563
GB 5565
GB 9573
GB 9575
GB 9576
GB 9577
Hydraulic test method for hoses
Bending test method for hoses
Methods for measuring dimensions of rubber, plastic hoses and hose assembliesInner diameter dimensions and length tolerances of rubber, plastic hosesGuidelines for selection, storage, use and maintenance of rubber, plastic hoses and hose assembliesMarking, packaging and transportation specifications for rubber, plastic hoses and hose assembliesGB 11210
Determination of electrical resistance of vulcanized rubber antistatic and conductive productsHG2185Appearance quality of rubber hoses
3Product classification
3.1. Hoses are divided into two types according to use requirements. Type A ordinary type.
B Type Antistatic Type.
3.2 Product Marking
3.2.1 Marking Content
Product Name, Model, Inner Diameter, Label Number, 3.2.1.1 Marking Example:
Sandblasting Rubber Hose
3.3 Specifications, Dimensions and Deviations
HG 2192
Standard No.
Product Name
The specifications, dimensions and deviations of the hose shall comply with the provisions of Table 1. Approved by the Ministry of Chemical Industry of the People's Republic of China on December 23, 1991 and implemented on May 1, 1992bZxz.net
Nominal Foot
HG 2192 - 91
Hose thickness
Ordinary type A
Note: The length and inner diameter of the hose not listed in the specification shall be agreed upon by the supplier and the supplier. 3.4 Cutting length deviation
Hose cutting length deviation shall be implemented in accordance with the provisions of GB9575. 4 Technical requirements
4. 1 Operating temperature
The operating temperature of the hose is -20～45℃.
4.2 Hydraulic requirements
4.2.1 The maximum working pressure of the hose is 0.63 MPa, and the maximum bending pressure of the hose is less than
4.2.2 When the hose is subjected to hydraulic pressure test under two working pressures, it should not leak water, have no local bulging, no expansion and no other abnormal phenomena. The antistatic hose maintains the pressure for 1 beat, and its length change should not exceed ±8%, the outer diameter change should not exceed 10%, and the twist per meter should not exceed 60°
4.2.3 The bursting pressure of the hose should not be less than 4% of the working pressure. 4.3 Bending performance
When the hose is tested with a minimum bending radius of 10 times the nominal inner diameter, the deformation length D value should not exceed 0.8 times the outer diameter D of the hose. It is the ratio of the outer diameter before bending to the outer diameter before bending. 4.4 Conductive properties
The resistance value of the antistatic hose should not exceed 2.0M2/m.4.5 Physical and mechanical properties
4.5.1 The physical and mechanical properties of the inner and outer rubber layers of the finished hose should comply with the requirements of Table 2. Test items
Tensile strengthMPa
Batch elongation, %
Hot air aging
(70 × 72 h)
Abrasion, Cm3
HG2192-91
Not less than
Not less than!
Tensile strength change rate, %
Tear elongation change rate, %
Not more than
Adhesion strength between layers, KN/m
Not less than
Ordinary type (Type A)
Inner rubber layer
Outer rubber layer
①Hoses with an inner diameter of less than 20mm are not subject to finished product physical and mechanical performance tests (except resistance). For:
Antistatic type (Type B)
Physical indicators are determined by both parties
Outer rubber layer
③Outer rubber layer is not thin. When conducting physical and mechanical performance tests, use the inner rubber layer prepared under the vulcanization conditions of the hose. , the outer rubber carbonized test piece is tested
When doing the wear test of the inner rubber layer of the hose, the inner rubber carbonized test piece prepared under the same vulcanization conditions as the teaching hose is tested. 4.6 The appearance quality of the hose shall comply with the provisions of HG2185. 5 Test method
The hydraulic performance is tested in accordance with GB5563
5.2 The bending performance is tested in accordance with GB5565. 5.3 The resistance value of the hose is tested in accordance with GB11210. 5.4 The physical and mechanical properties of the hose rubber layer are tested in accordance with GB5562. 5.5 The wear performance is tested in accordance with GB1689
5.6 The specifications, dimensions and deviations of the hose are measured in accordance with GB 9573. 5.7 The appearance quality is checked visually and with measuring tools. 6 Acceptance rules
6,1: The appearance and dimensions of the hose shall be checked one by one. 6.2 Each batch of hoses shall not exceed 20,000m.
6.3 The hoses shall be inspected in batches by the quality inspection department of the manufacturer. Each batch of hoses must have a product quality certificate and be stamped with the seal of the inspection department before leaving the factory.
6.4 Take two hoses (any specification) from each batch of finished products and check the various properties and hydraulic and burst pressure tests at least once a month. The resistance value is checked once a quarter. 6.5 If the physical and mechanical properties and pressure tests are unqualified, double samples should be taken from the product and the unqualified items should be retested. If one item or one sample is still unqualified after the retest, the batch of products is unqualified. 7 Marking, packaging, transportation and storage
7.1 The marking, packaging and transportation of hoses shall comply with the provisions of GB9577. 7.2 The storage of hoses shall comply with the provisions of GR 9576 HG 2192-91
7.3 In compliance with Articles 7.1 and 7.2 of this standard, the manufacturer shall ensure that the performance of the product shall still comply with the provisions of this standard within a storage period of no more than 1 year from the date of manufacture. Additional notes:
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and is under the jurisdiction of the Rubber Hose Sub-Technical Committee of the National Technical Committee for Standardization of Rubber Products. This standard was drafted by the Shenyang Rubber Industry Products Research Institute of the Ministry of Chemical Industry. The main authors of this standard are Peng Shuqin, Zhong Juping, Jing Zhanzheng, and Liu Yufang. From the date of implementation of this standard, the original standard of the Ministry of Chemical Industry "HG4-1458--82 Sandblasting Hose" will be invalid.
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