This standard specifies the definition, symbols, materials, product classification, requirements, test methods, inspection rules and markings, transportation and storage of rigid polyvinyl chloride double-wall corrugated pipes (hereinafter referred to as "pipes") made of polyvinyl chloride resin as the main raw material and extruded. This standard is applicable to pipes for drainage of municipal buildings, drainage outside buildings, and drainage of farmland. It can also be used for pipes such as communication cable threading and low-pressure water supply (≤0.2MPa). Considering the chemical resistance and temperature resistance of the material, it can also be used for industrial sewage pipes. QB/T 1916-2004 Rigid polyvinyl chloride (PVC-U) double-wall corrugated pipes QB/T1916-2004 Standard download decompression password: www.bzxz.net

TC.S 83.140.30
Classification number: G33Www.bzxZ.net
Supervision number: 15125-2005
Light Industry Standard of the People's Republic of China
QB/T 1916-2004
Replacement of B/196-1993
Unplasticized poly vinyl chloride (PVC-U) double wall corrugated pipes2004-12-14 Issued
2005-06-01 Implementation
National Development and Reform Commission of the People's Republic of China: Issued Foreword
QB/T18162004
This standard refers to the European standard PrFN.134761:2001 "Thermoplastic plastics piping systems for non-pressure water and sewage treatment - Structural wall pipe systems of rigid polyvinyl chloride (PVC-L), polypropylene (PP) and polyethylene (PE) - Part 1: Specifications for pipes, fittings and systems" on polyvinyl chloride structural pipes, and is formulated in accordance with the actual production chain in my country. This standard is a revision of QB/T1916-1993 "PVC-L" double-wall corrugated pipe village. Compared with 0B/T1916-193, this standard has ten major changes: - added "definition, symbol" (see Chapter 3); added inner diameter series (see 7.3.2); added layer stop and inner wall requirements (see 7.3.2); added baking test requirements (see 7.4); added environmental flexibility requirements (see 7.4):
Xie Guang pipe small force grade regulations <see Section 1]: This standard is proposed by the China Light Industry Federation. This standard is divided into plastic materials, driving parts and The standard is under the jurisdiction of the Technical Committee (TC48/S3). The main drafters of this standard are: Huang Jian, Zhang Jianjun, Shunli, Qin Chuang, and Wei Zuoyou. The standard is implemented by the Ministry of Industry and the light industry standard QBT196-1993 Rigid Polyvinyl Chloride (PVC-L) Double Wall Corrugated Pipe.
1 Scope
Rigid Polyvinyl Chloride (PVC-U) Double Wall Corrugated Pipe QB/T 1916-2004
Technical standard stipulates the definition, name, material, product classification, requirements, test methods, inspection rules and signs, transportation and storage of double-wall corrugated pipes (hereinafter referred to as "corrugated pipes") made of soft vinyl resin as the main raw material and extruded. This standard is applicable to urban construction and residential drainage, building drainage, farmland drainage, and can also be used for communication cable threading and low-length drainage pipes (%0.2MP>). Considering the chemical resistance and temperature resistance of the material, it can also be used as industrial sewage pipes. 2 Normative reference documents
The following clauses are significant The clauses become clauses of this standard through reference in this standard. For the applicable documents with marked date, all the subsequent amendments (excluding errors) or revised versions are not applicable to this standard. However, the parties who reach an agreement based on this standard shall study whether the latest version of this document can be produced. For the referenced documents without date, the latest version shall be used in this standard. Sampling procedures for attributes Part 1: Sampling plan for batch inspection based on acceptance test (AQ) GU/T2828.1-2003
(ISO28591:1999, IDT)
GB/T G11
Test method for heat-resistant plastic pipes for light transport (ISO1167: 1996, TDT) 203
GB/T 8802-2001
Determination of melting point of heat-resistant plastic pipes and fittings (ISO2507: 1995) GE/T 8806-1998
Measurement method for dimensions of plastic pipes (ISO9969: 1994, TDT) GB/T 964T2003
GB/T 14152—2001
Test method for external impact resistance of heat-resistant plastic pipes (cqv1S03127:1994) Test method for heat-resistant plastic pipes (ISO9967:1994) GE/T[8042—2000
Spectrum and definitions of heat-resistant plastic pipes, fittings and valves GH/T 192782(03
3 Definitions and symbols
D/T19278-2003 and the following definitions apply to this standard. 3.1 Definitions
Nominal size DN/OD
The nominal size related to the outside diameter is millimeters (mm). 3.1.2
Nominal dimension DN/ID
is the dimension related to the internal diameter, in millimeters (mm). 3.1.3
is the external diameter measured at the pipe end or at the end of the pipe, in millimeters (mm). QB/T1916-2034
Average outer diameter
Measured at a certain point on the pipe or the outer circumference divided by the unit (43.142): The first position is meter (m3. t. 5.
Average inner diameter
The average value of the inner diameter of the pipe at a certain point, the unit is millimeter (m) 3.1.6
The minimum allowable value of the average inner diameter of the pipe at the same time, the unit is meter (mm): 3.1.7
Laminated wall thickness
The thickness of the pipe at any point, the unit is meter (mm) 3.1.8
Inner wall thickness
The thickness of the inner wall at any point in the pipe is shown in Figure 1>, the unit is mm3. 1. 2
Minimum socket length
Connection rate judgment The minimum allowable value of the socket length is shown in Figure 2, the unit is m: 3.2 Symbol
GB/T19278-2003 gives the standard socket length with the number + as the standard length
4 Material
Dimensions related to the outer diameter
Nominal length related to the inner diameter
Average outer diameter|| tt||Average name
Minimum inner diameter of socket
Morning mountain and house
Inner cover
Effective length of saving money
New material of core pipe should be polyvinyl chloride (PVC) resin, and additives can be added to improve the quality of the pipe: it is allowed to use materials that meet the requirements of this standard! Clean and recyclable materials. 5 Product classification and labeling
5.1 Classification||t t||Pipes are classified by environmental risk, as shown in Table 1
: m500m medium V2 grade
5.2 Certification
Double-wave pipe
Nominal environmental rigidity grade
QB/T19~6-2004
5.3 Marking example
Nominal internal energy mM, different degrees of light W&PVCU double-drop grade pipe PVCU number of whole pool pipe V/4005 V8QB/T191620045 Pipe structure and connection
The reduction of the curved shape to the [show.
Wide range of components
Tube structure diagram
QB/T1916—2004
Medium step loss per technique
This standard number
Ring grade
Nominal size!
Company code
QB/T 1918—2004
6.2 Connection
West zero porcelain
For pipes without ports
Figure 1
The pipes can be connected by pressure elastic sealing ring type, or by other connection methods. A typical elastic sealing connection method is shown in Figure 2. Figure 2 Schematic diagram of typical elastic sealing connection
7 Requirements
7.1 Color
The inner and outer layers of the pipe should be evenly colored. The color shall be determined by negotiation between the supplier and the supplier. 2 Appearance
QB/T 1916--2004
The inner and outer layers of the pipe should not have air marks, cracks, decomposition discoloration lines, obvious quality and irregular effects. The inner wall of the material should be smooth, the end surface should be smooth and the pipe wave capacity area should be tightly welded, and there should be no disconnection. 7.3 Specifications and dimensions The length of the pipe (see figure) is 6m, and the actual length is determined by the supplier and the buyer. The pipe length is not limited. 7.3. 1
7.3.2 Pipe specifications Nominal size DN/D or public displacement size DW/01 (see Table 2, Table 3). The size of the inner diameter series pipe shall meet the requirements of Table 2, and the minimum average inner diameter H shall not be less than the maximum average outer weight of the pipe. The size of the outer diameter series pipe shall meet the requirements of Table 3, and the minimum average diameter H of the socket shall not be less than the maximum average outer weight of the pipe. Table 2 Size of inner diameter series pipe
Nominal inner diameter/
Public diameter
Minimum average inner diameter. Product
Minimum average outer diameter
Minimum inner wall thickness
Outer diameter series pipe size
Start small average inner
Good small music medical
Unit is An
Minimum bearing capacity 4
Production process is meter
Minimum inner step
Product small bearing factory connection seat
QH/T1916—2004
Nominal outer diameter
Expanded flat is outer diameter
XIF? 4
Table 3 (continued
Small average diameter
Small average diameter
Small average diameter
The value of the outer diameter of the small pipe shall comply with the formula calculated in the following formula, tig. 0. 994 d.
d1.00? d.
4. It is the outer diameter specified by the pipe manufacturer. The calculated result shall be rounded to the decimal place.
7.4 Physical and mechanical properties
The physical and mechanical properties of the pipe shall comply with those of Table 1. Table 4 Physical and mechanical properties of pipes
Ring/, the test length is 2m: drop quality and impact depth see Table 5
Table 5 Drop quality and impact height
External weight d/mm
>1F--125
> [25--160
Fall quality g
8.4.2 Test sample after impact, the test is qualified after the impact is slightly broken. Impact
QB/T 1916—2004
8.5 Ring flexibility
GB/T964720Q3 Test is carried out at the specified time, the test speed is determined according to the outer space of the pipe, and the sample is subjected to at least 30% radial deformation. Then test whether it can slide, whether there is reverse bending, whether it is broken, and whether the two walls are separated. 8. White oven test
8. 6. 1 Sample
Take 3 sections of (30020>mm) material, the outer diameter of the pipe is not more than 400um, cut into four small samples along the direction: the outer diameter is 4, the pipe is 400mm, cut into four small samples along the direction, 8. Day. 2 Test steps
The temperature of the supply box is set to (150°C + 2°C). After the temperature reaches 150°C, place the sample in the box and make sure that the sample is not in contact with the box wall. After 30 minutes of placement at (150°C + 2°C), take it out. The sample should not be deformed when taking it out. After the sample cools to room temperature, observe that there is no delamination or cracking.
8.7 Spiral ratio
Test in accordance with GB/T18042-2000.
B. Sealing test of joints
Perform the test in accordance with GB/T6111-2003. The sample contains at least one elastic sealing joint. When the test pressure is 0.3M or the test time is 1h, observe that the sample has no cracks, ruptures, or failures. 8. 9 Swelling filter pressure test
G Japan/6111-2003 stipulates that 3 test samples should be selected for testing. The test temperature is (202)℃, the test pressure is 4 working pressure, and this pressure is maintained. Check for large acid cracks and concentrated loads: Inspection regulations
9.1 Products can only be produced after passing the quality inspection of the manufacturer and accompanied by a certificate of conformity: 9.2 Group
The same raw materials, chemical methods and processes are continuously produced in the same batch. When the diameter is greater than 400mm, the number of pipes is not more than 30. If the product is of good quality, the production capacity is not less than 30t. The output is: individual inspection Batch: When the diameter is greater than 400mm, the production volume is: 1 delivery inspection batch. 9.3 Factory inspection
9.3.1 Factory inspection item 1 is the ring stiffness, ring rotation and drying test in 7.17.2, 7.3 and Table 4. This pipe is used for low-pressure water transmission and static pressure test should also be carried out.
9.3.27.1, 7.2 and 7.3 are selected according to CB/T2828.1-20M3. The normal inspection is adopted once the sampling plan is adopted. The acceptance inspection level and acceptance quantity (AO1.>6.5, the sampling plan is shown in Table 6 Table 6 Sampling plan
:5: -- 280
281--50
5n1·~1200
120:3 200
310000
Medical text reform Ae
Unit is root
Rejection number Re
QB/T19162004
9.3.3 Randomly select samples from the samples that have passed the sampling inspection in accordance with 9.3.2 to verify the ring stiffness, ring resistance and oven test in 17.4, 9.4 Type inspection
9.4. Type inspection is the seventh standard for all technical requirements. Under normal circumstances, the standard shall be carried out every two years. If there is any of the following conditions, a type inspection should also be conducted. 9.4.2
After formal production, if there are major changes in the material and process that may affect product performance: s)
When production is stopped for more than one year for any reason and then resumed; b?
The results of the factory inspection station are quite different from those of the last type inspection; e
) When the national quality supervision agency conducts type inspections. 9.5 Judgment rules
When any of the items in 7.1, 7.2 and 7.3 does not meet the requirements of Table 6, it shall be judged as unqualified. If there is any item in 7.4 that cannot be marked, the double-barred products collected from 9.3.2 shall be re-inspected. If the re-inspected products are qualified, the batch shall be judged to be changed to a qualified batch: 10 Marking, transportation , Storage
10.1 Marking
10.1.1 The material should have permanent markings, and the distance between the markings should not exceed 2m. The markings should not cause any damage to the material. The markings should at least include the following contents:
a) Marks specified in 5.2:
b) Manufacturer name and/or trademark;
10.1.2 When the pipe is used for low-pressure water supply, it should have "DS××\" mark. Note: "××" is used for low-pressure water supply, and the unit is a.10.2 Transportation
When loading and transporting products, do not consider the ground, its bed and the distance between the markings. 10.3 Storage
The ground for pipe storage should be flat, the stacking height should not exceed 2m.
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