HG 3039-1988 Rubber hose for coastal oil transportation

HG 3039-1988 Rubber hose for coastal oil transportation HG3039-1988 standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Rubber hose for coastal oil transportation
Kubber hose - On shore oil discharge hnise - SpecificaticonUINC621.643.3
:622.692.4
H (G/T 3039 - 1988 (1997)
Replaces GB 9570-88
This standard refers to and adopts 1SO/DP1823/2-1985 "Rubber hose specification for coastal oil transportation"), 1 Subject content and scope
This standard specifies the technical requirements for two types of rubber hoses for coastal oil transportation. This standard applies to rubber hoses used for transporting crude oil, gasoline, kerosene, diesel and other mineral oils on tankers and terminals. The applicable temperature is -20-- +80℃.
This standard does not apply to hose assemblies made of soft metal or rubber hoses for offshore applications. 2 Reference standards
GB527 General requirements for physical test methods for vulcanized rubber 528 Determination of tensile properties of vulcanized rubber
GR 532 Determination of adhesion strength of vulcanized rubber to fabrics Test method for liquid resistance of vulcanized rubber
GB 1690
GB 2941
GB 5562 Standard push temperature and peeling time for parking and testing of rubber specimens Physical test method for rubber layer of hose
GB 5563 Hydraulic test method for hose
Low temperature bending test method for hose
GB 5564
GB 9571 Evaluation of ozone resistance of rubber and plastic hoses under static conditions Determination of electrical resistance of rubber, plastic hoses and hose joints GB 9572
GB9576 Guide to the selection, storage, use and maintenance of rubber, plastic hoses and hose assemblies GB9577 Specifications for the marking, packaging, transportation and acceptance of rubber, plastic hoses and hose assemblies 3 Product structure, classification, size and product marking 3.1 Structure
The hose is composed of an inner rubber layer, a reinforcement layer, an outer rubber layer and a metal joint. The relevant metal joints are pre-processed or assembled, which can be resolved according to the agreement between the supply and demand parties. 3.2 Classification and working pressure level
3.2.1 Category
Class 1 is suitable for conveying petroleum and gasoline (aromatic hydrocarbon content does not exceed 50%), and Class 2 is suitable for conveying aromatic hydrocarbon media (aromatic hydrocarbon content reaches 100%). 3.2.2 Working pressure level (see Table 1)
Ministry of Chemical Industry of the People's Republic of China 1988-04-0820
Approved and implemented on 198902-01
3.3 Size and tolerance
1039 1988 (107)
3.3.1 The inner diameter size and tolerance shall comply with the provisions of Table 2. 2
Nominal inner diameter
Maximum working force, MFa
Maximum allowable tolerance
The hose length shall be proposed by the user and agreed upon by the supply and demand parties; the length tolerance is +1.5% of the total length of the hose (including the metal joint at the pipe end) 3.4 Product marking
Marking content: name, specification, category, grade, standard bow. Marking example:
Rubber hose for coastal oil transportation
4 Technical requirements
4.1 Hydraulic properties of hoses
GB9570
Standard number
4.1.1 The hose should be free of leakage and bubbling when it is kept at the specified maximum working pressure for 10min. 4.1.2 The bursting pressure of the hose is four times the maximum working pressure. The temporary elongation and permanent elongation of the hose should comply with the provisions of Table 3 when it is kept at the maximum working pressure for 10min. 4.1.31
Performance items
Temporary elongation, %
Permanent elongation, %
4.2 Conductive properties of hoses
Not more than
Not more than
The continuous conductivity between the two ends of the hose is less than 2×10\Q/m. Refers to
4.3 low overflow transformer
H7 3034) 1088 17:
Use the rubber and fabric used in the production of faster pipes, the same manufacturing process and the same fluidizing conditions to manufacture the trial product (the soft drop radius is 2+1.2mml, the minimum bending radius is 150mm). Place at -25℃ for 5h, after the change, the inner and outer rubber layers of the sample should have no cracking phenomenon: 4.4 Adhesion strength
The rubber material and fabric used in the production of hoses are made of the same manufacturing process and the same vulcanization conditions. The soft sample with an inner diameter of 25u (large size 25mm) and a length of 300±5num is tested. 4.4.1 Initial adhesion strength
The adhesion strength between the rubber layer and the reinforcement layer, and between the reinforcement layer and the reinforcement layer is not less than 3kN/m: 4.4.2 Adhesion strength after filling
Cut a soft sample with a length of 300±5mm, fill it with the specified test liquid, and stand it for 48 under standard test conditions; then pour out the liquid and test it again. The requirements should meet the requirements of Table 4. Table 4
Performance Index
Adhesion after filling
Not less than
4.5 Liquid resistance
The liquid resistance test of the rubber used to manufacture the hose shall comply with the provisions of Table 5.
Ozone resistance
No. 3 standard oil
Between rubber layer and reinforcing layer
Between reinforcing layer and reinforcing layer
Volume expansion rate, %
Not more
Use the outer rubber (rubber) sample used to produce the hose to stretch it by 12.5%, keep it in the test box with ozone concentration of 50±5pphrn and temperature of 40 for 72 hours, and check the surface with a 2x magnifying glass. There should be no cracking phenomenon. 4.7 Minimum bending radius
When the hose works under working pressure, its minimum bending radius shall not be less than that specified in Table 6. Table 6bzxz.net
Nominal inner diameter
Note: The bending radius specified for the hose is for user reference. 22,
Minimum bending
5 Test method
11 3039 - 1985 (1547:
Hose dimensions are checked with a vernier caliper or appropriate measuring tool, and the length is measured with a meter ruler. 5.1
Hose liquid test is carried out in accordance with (G5563. The temporary elongation and permanent elongation tests of the hose are in accordance with Appendix A. 5.3
Hose conductivity test is carried out in accordance with GB 9572. 5.41
Hose low temperature bending test is carried out in accordance with GB 5564. 5.5
Hose adhesion strength test is carried out in accordance with (GB5562. 5.6
Hose liquid resistance test is carried out in accordance with GB5562. 5.7
5.8 Hose ozone resistance test is carried out in accordance with GR 9571 Regulations. 6 Inspection rules
6.1 The hoses shall be inspected in batches by the manufacturing technical inspection department, with the quantity of each batch not exceeding 200, and each batch of products shall be accompanied by a product certificate before leaving the factory.
6.2 The specifications and dimensions of the hoses shall be inspected one by one. 6.3 The hoses shall be inspected one by one by a non-destructive (constant pressure) test. 6.4 Select any one specification from the same batch of hoses as a representative, and select any one of them to check the physical and mechanical properties. 6.5 The hose bursting pressure, low temperature bending, and ozone aging performance tests shall be carried out every six months. Temporary elongation, permanent elongation, electrical conductivity, and adhesion strength tests of the hoses shall be carried out once every six months. 6.7 Routine inspection is not required for the minimum bending radius specified for hoses. 6.8 Liquid resistance test of rubber materials used to make hoses is conducted once a month. 6.9 If one of the indicators in the physical and mechanical performance inspection fails, double the number of samples should be taken from the same batch of products and the unqualified items should be retested. If one indicator still fails after the retest, the batch of products is unqualified. 7 Marking, packaging, transportation, storage and use If the user has no special requirements, follow the provisions of GR9577 and GB9576. 23
Test procedure
Put the hose straight.
F/7: 3039 -- 1988 (1997)
Appendix A
Test method for temporary and permanent elongation of hose (supplement)
Remove the air from the hose and pressurize it to 0.07 MPa and keep it for 1 minute. Measure the total length of the hose (L).
Increase the pressure from 0.07 MPa to the working pressure and keep it for 10 minutes. Check that the hose should not leak. Measure the total length of the hose (L) before releasing the pressure.
Reduced the pressure to 0.
After an interval of at least 15 minutes, increased the pressure to 0.07MPa, measure the full length of the hose (L). Test results and expressions
Temporary elongation is calculated according to (A1):
Temporary elongation (%)
A2.2Permanent elongation is calculated according to formula (A2): Permanent elongation (%)
Attached period description:
Lz- Lo × 100
This standard is under the jurisdiction of the Rubber Hose Sub-Technical Committee of the National Rubber and Rubber Products Standardization Technical Committee. This standard was funded by Shanghai Rubber Factory and Shenyang Rubber Industrial Products Research Institute of the Ministry of Chemical Industry. The main drafters of this standard are Tuo Anfu, Zhao Zucheng, Wang Baozhu, Yan Songfeng, and Wang Weixiang. 24
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