Original standard number GB 2552-1981 HG/T 2183-1991 Dilute acid and alkali resistant rubber hose HG/T2183-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Dilute acid and alkali resistant rubber hose
Topic and applicable scope
This standard specifies the technical requirements and test methods for dilute acid and alkali resistant rubber hoses. HG 2183-91
This standard is applicable to rubber hoses (hereinafter referred to as hoses) for conveying sulfuric acid solutions with a concentration not higher than 40% and sodium hydroxide solutions with a concentration not higher than 15% in an environment of -20 to 45℃, as well as acid and alkali solutions with a concentration equivalent to the above (except nitric acid). Cited standards
GB 528
Determination of tensile properties of vulcanized rubber
GB 1690
GB 3512
GB 5562
GB 5563
GB 5567
GB 9575
GB9576
GB9577
HG 2185
3 Product categories
Test method for liquid resistance of vulcanized rubber
Test method for hot air aging of rubber
Physical test method for rubber layer of hose
Hydraulic test method for hose
Test method for vacuum resistance of hose
Rubber. Inner diameter dimensions and length tolerances of plastic hoses Selection, storage, use and maintenance guidelines for rubber and plastic hoses and hose assemblies Marking, packaging and transportation rules for rubber and plastic hoses and hose assemblies Appearance quality of rubber hoses
Hoses are divided into three types: A, B and C according to the requirements of Table 1.
With reinforced layer
With reinforced layer and steel spiral line
3.2 Dimensions and tolerances
Transport of acid liquids
Suction of acid and alkali liquids
Discharge of alkali liquids
Using pressure, MPa
0. 3, 0. 5, 0. 7
0. 3, 0. 5, 0. 7
The dimensions and tolerances of type A hose shall comply with the provisions of Table 2; the dimensions and tolerances of type B and type C hoses shall comply with the provisions of Table 3 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 inner diameter
Nominal inner diameter
HG 2183 -.91
integral and C
rubber lip width
inner rubber distance
not less than
outer rubber layer
3.3The hose length is proposed by the user and determined by the manufacturer. 3.4The length tolerance of hoses above 10m is ±1% of the total length of the hose, and the length tolerance of hoses of 10m and below is 1.3% of the total length of the hose.
3.5Product marking
Marking content: product name, model, nominal inner diameter, working pressure, standard number. Marking example:
Dilute acid and alkali resistant hose
A16-0.3HG 2183
Standard number
Working pressure
Nominal inner diameter
Main body→melting
W.4 Technical requirements
HG 2183 — 91
4.1 The physical mechanical properties of the hose shall comply with the provisions of Table 4. Table 4
Tensile strength, MPabZxz.net
Tear elongation, %
Vegetable acid (40%). Temperature × 72 h
Hot acid (30%), room temperature × 72 h
Hydrogen aging (15%), room temperature × 72 h
Hot gas aging, 70 × 72 h
Adhesion strength kN / m
Change rate of tensile strength, %
Change rate of elongation at break, %
Change rate of tensile strength. %
Change rate of elongation at break, %
Change rate of tensile strength, %
Change rate of secondary elongation at break, %
Change rate of tensile strength. %
Change rate of elongation at break, %
Between each rubber layer and reinforcement layer
Between each reinforcement layer and reinforcement layer
Note: If the thickness of the outer rubber layer does not meet the thickness requirement, a specimen made of the manufacturing soft rubber material can be used for testing. 4.2 The pressure relief requirements for type A and type C hoses shall comply with the requirements of Table 5.5
Working force
Test force
Inner rubber layer
Outer rubber layer
-25 ~ +25
-30 ~ +10
Minimum bursting pressure
After the vacuum resistance test of C-type hose under the pressure of 80kPa (-600mmHg), the inner rubber layer should not have any abnormal phenomenon such as peeling, middle 4.3B type,
smell, etc.
4.4 The appearance quality of the hose shall comply with the provisions of HG2185. 5 Test method
5.1 The tensile strength, elongation at break of the inner and outer rubber layers of the hose and the adhesion strength between the layers shall be determined in accordance with GB528 and GB5562HG 2183 -- 91
5.2 The change rate of tensile strength and elongation at break of the inner and outer rubber layers of the hose after acid and alkali resistance shall be implemented in accordance with the provisions of GB528, GB1690 and GB5562.
5.3 The hot air aging test of the inner and outer rubber layers of the hose shall be carried out in accordance with the provisions of GB3512, GB528, and GB5562. 5.4 The hydraulic test of the hose shall be carried out in accordance with the provisions of GB5563. 5.5 The vacuum resistance test of the hose shall be carried out in accordance with the provisions of GB5567. 6 Inspection rules
61 The hose shall be inspected in batches by the inspection department of the manufacturer. The quantity of each batch shall not exceed 1,000 pieces. Each batch of products must be accompanied by a certificate of conformity before leaving the factory.
6.2 Each batch of hoses shall be inspected for specifications, dimensions, and appearance quality one by one. 6.3 For each batch of hoses, any one specification shall be selected as a representative, and any one shall be inspected for various physical and mechanical properties, vacuum resistance test, and kitchen pressure test. This shall not be less than once a month.
64 If one of the indicators in the physical and mechanical properties test or the air resistance test or pressure resistance test fails, double samples should be taken from the batch of products and the unqualified items should be retested. If one of the samples still fails to meet one indicator after the retest, the batch of products is unqualified.
7 Marking. Packaging, storage and use
7.1 The marking, packaging and transportation of hoses shall be in accordance with the provisions of GB9577.7.2 The selection, storage, use and maintenance of hoses shall be in accordance with the provisions of GB9576. Additional notes:
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 Rubber Hose Sub-Technical Committee of the National Rubber and Lemon Products Standardization Technical Committee. This standard was drafted by the Shenyang Rubber Industrial Products Research Institute of the Ministry of Chemical Industry and Qingdao Sixth Rubber Factory. The main drafters of this standard are Yan Songfeng, Wang Baozhu, Wang Weixiang, Wang Wenjie, and Wang Jianzhi.
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