Original standard number GB 1187-1981 HG/T 2184-1991 General purpose rubber hose for water supply HG/T2184-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of ChinabZxz.net
Water delivery, general purpose rubber hose
This standard refers to the international standard IS01403-1986 "Water delivery, general purpose rubber hose". 1 Subject content and scope of application
HG 2184-91
This standard specifies the model level, specification size, technical requirements, test methods and inspection rules of rubber hoses for water delivery. This standard applies to rubber hoses for conveying domestic water and industrial water below 60°C. This standard does not apply to rubber soft arms for conveying drinking water. 2 Reference standards
GB 528
GB 3512
GB5562
GB5553
GB 9571
GB 9574
GB 9575
GB 9576
GB 9577
Preferred number and superior light number system
Determination of tensile properties of vulcanized rubber
Test method for hot air aging of rubber
Physical test method for rubber layer of hose
Hydraulic test method for hose
Evaluation of ozone resistance of rubber and plastic hoses under static conditions Ratio of test pressure, bursting pressure and design working pressure of rubber, plastic hoses and hose assemblies Small diameter and length tolerance of rubber and plastic hoses Guide to storage, selection, use and maintenance of rubber, plastic hoses and hose assemblies Marking, packaging and transportation rules for rubber, plastic hoses and hose assemblies HG 2185
3 Product classification
3.1 Model level
Appearance quality of rubber hose
Hoses are divided into three types: 1, 2, and 3 according to the working pressure, and five levels: a, h, c, d, and e according to the working pressure. Type 1: low pressure type.
Working pressure ≤0.3MPa;
Working pressure 0.5MPa;
Working pressure 0.7MPa, hose with inner diameter of 10, 12.5.**.100mm. Type 2: medium pressure type.
Working pressure ≤1. 0MPa, inner diameter 50 (including 50) mm or less. Type 3
High pressure type.
E-level working pressure ≤ 2.5MPa, inner diameter 25 (including 25) mm or less. 3.2 Structure
The hose should be composed of a rubber inner layer, a natural or synthetic fiber reinforcement layer, and a rubber outer layer. 3.3 Specifications and dimensions
The inner diameter size and tolerance of the hose should meet the requirements 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, 1992
Nominal size is
HG 2184 91
Inner rubber layer
Outer rubber layer
Jiang: In case of special requirements for other dimensions, the supplier and the supplier shall negotiate and resolve the issue. For product dimensions not specified in Table 1, they shall be selected from the R20 series in GB 321, and the tolerance shall be determined according to the tolerance of the next larger size; for product dimensions larger or smaller than those in Table 1, they shall be selected from the R10 series in GB 321, and the tolerance shall comply with the provisions of GB 9575.
3.4 ​​Length
The cut length of the hose shall comply with the provisions of GB9575. 3.5 Product marking
Marking content, product name, model, level, specification, standard number, marking example:
1-b-40HG 2184
Water supply hose
Standard number
-Level
-Product name
4 Technical requirements
4.1 The performance indicators of the hose rubber material shall meet the requirements of Table 2. Tensile strength, MP
Elongation at break.%
Type 1, 2
Heat aging performance (70=1℃.72h)
Tensile strength change rate, road
Elongation at break change rate, %
HG 2184—91
4.2 The hydraulic performance of the hose shall meet the requirements of Tables 3 and 4. 3
Comparative pipe type
In the test force
Length change density, %
Outer diameter change rate. Road
Working pressure
Energy items:
Note: 1) Both are applicable to braided hoses. 4.3 The adhesion strength between each layer of the hose shall not be less than 1.5kV/mTable 4
Inner rubber layer
--30--10
Test pressure
Outer rubber layer
--30-10
Explosion pressure
4.41.2, 3 type hoses shall not crack after the ozone resistance test at 40±2℃, 72-2h, but this performance requirement shall be determined by negotiation between the supply and demand parties.
4.5 The appearance quality of the hose shall meet the requirements of HG2185. 5 Test methods
5.1 The physical properties of the inner and outer rubber layers of the hose shall be measured in accordance with GB528 and GB5562. Free download of customer standard industry data HG 2184-91
5.2 The thermal aging properties of the inner and outer rubber layers of the hose shall be measured in accordance with GB3512 and GB55G2. 5.3 The hydraulic performance test of the hose and the determination of the length and outer diameter change rate under the test pressure shall be carried out in accordance with GB5563. 5.4 The adhesion strength between the layers of the hose shall be measured in accordance with GB5562. 5.5 The static ozone resistance of the hose shall be measured in accordance with G 9571. 6 Inspection rules
6. 1 The appearance and size of the hoses should be checked one by one. 6.2 The hoses should be inspected in batches by the manufacturer's inspection department. The number of hoses of the same model should not exceed 3,000 per batch, and each batch of products must be accompanied by a quality certificate before leaving the factory.
6.3 For the same model hose, any one specification can be selected as a representative, and any one can be checked for various physical and mechanical properties, and a hydraulic test can be carried out. 6.4 If one of the physical and mechanical properties or the pressure test fails, double the number of samples from the batch of products should be taken for retesting the unqualified items. If one of the samples still fails to meet one of the indicators after the retest, the batch of products shall be deemed unqualified. 7 Marking, packaging, transportation, storage, selection, use and maintenance 7.1 Except for hoses marked as suitable for non-drinking water and with an inner diameter of 80mm and below, which can be coiled into coils, the inner diameter of the coil shall not be less than 15 times the inner diameter of the hose: the inner diameter of 80mm or below Iit1 and above should be flat and self-packed. Other signs, packaging and transportation should comply with the requirements of GB9677:
7.2 The storage, selection, use and maintenance of hoses should comply with the requirements of GR 9576. 7.3 The hoses shall not be stored for more than 1 year under the conditions specified in this standard and CB9577 and GR9576. Additional remarks:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Rubber and Rubber Products Standardization, such as the Rubber Hose Sub-Technical Committee. This standard was drafted by the Shenyang Rubber Industry Products Research Institute of the Ministry of Chemical Industry and the Sixth Rubber Factory of Beidao. The main drafters of this standard are Xia Baozhu, Yan Songfeng, Tu Weixiang, Tu Wenjie and Tu Jianzhi.
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