1 Scope
This document specifies the terms and definitions of intelligent plastic pipes, fittings and valves in the intelligent pipe network equipment layer. Classification. General provisions, requirements, test methods, inspection rules, marking, packaging, transportation and storage.
This document applies to water supply, drainage, gas, heat and other intelligent pipe network system.
2 normative reference documents
The following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the referenced documents, only the date of the corresponding version applies to this document; not note 8 period of referenced documents, the latest version (including all the revision of the list) applies to this document.
GB/T 2918 plastic specimen condition adjustment and test standard environment
GB/T 5836 (all parts) rigid polyvinyl chloride (PVC-U) for building drainage
GB/T 10002 (all parts) water supply rigid polyvinyl chloride (PVC-U)
GB/T 13663 (all parts) water supply with polyethylene (PE) piping system
GB/T 1558 (all parts) buried polyethylene (PE) piping system for gas
GB/T 18742 (all parts) polypropylene piping system for hot and cold water
GB/T 18993 (all parts) hot and cold water with chlorinated polyvinyl chloride (PVC-C) piping system
GB/T 19472 (all parts) buried with polyethylene (PE) structural wall piping system
GB/T 19473 (all parts) hot and cold water with polybutylene (PB) piping system
GB/T 28270 intelligent valve electric device
GB/T 28799 (all parts) heat-resistant polyethylene (PE RT) piping system for hot and cold water
GB/T 35451 (all parts) buried drainage sewage polypropylene (PP) structural wall piping system
GB/T 41004.1- 2021 Intelligent pipe network system Part 1: General provisions
3 Terms and definitions.
The following terms and definitions apply to this document.
3.1
Intelligent plastic pipe inelligent plastic pipes
Plastic pipe as a substrate, combined with sensing equipment, etc., can collect, transfer, trace and other data information to the system platform of the pipe.
3.2
Intelligent plastic pipe fittingsintelligent plastice fitings
Plastic pipe fittings as the substrate, combined with sensing equipment, etc., can collect. Transmitting. Data information such as traceability, real-time parameters are collected and transmitted to the system platform.
3.3
Itelligent valves
Valves for plastic piping as a substrate, combined with components such as controllers, positioners, or sensing devices, can transmit information in both directions through digital communication technology, and can execute the control instructions that come from the valve.
4 Classification
According to the combination of mechanical connection and embedded intelligent plastic pipes, fittings and valves.
5 General Provisions
5.1 Intelligent plastic pipe. Fittings and valves should be consistent with the provisions of GB/T 41004.1 - 2021 in Chapter 6 and Chapter 7.
5.2 The combination of sensing equipment, etc. should comply with the provisions of the corresponding documents and / or specifications, the combination of sensing equipment, etc. should not be pipe. The combination of sensing equipment should not adversely affect the performance and service life of pipes and valves. The manufacturer should give specific documentation in the relevant technical documents.
5.3 intelligent valve electric device should comply with the provisions of GB / T 28270, the installation of electric devices should not adversely affect the life and performance of the valve.
5.4 The manufacturer of intelligent plastic pipe, fittings and valves should provide information about their products, see Appendix A.
6 Requirements
6.1 Smart plastic pipe. Pipe and valve substrate should comply with the provisions of the corresponding documents in Table 1. According to the actual needs, the combination of sensing equipment parts of the adaptive design, but should not affect the overall requirements of the substrate.
7 Test methods
7.1 Specimen state conditioning and test the standard environment
Unless otherwise specified, the specimen in accordance with the provisions of GB/T 2918, at a temperature of (23 to 2) C . Relative humidity of (50 Shi 10)% conditions for at least 24 hours of state conditioning, and under these conditions for testing.
7.2 Environmental stability
7.2.1 Specimen
The specimen should contain at least one complete intelligent plastic pipe/intelligent plastic pipe fittings/intelligent valve products. The length of the specimen shall not exceed 1 m.
7.2.2 High temperature resistance
The specimen is placed in a high-temperature chamber without electricity, heated to (50 Shi 2) C, held for (120 Shi 2) min and then removed and cooled to room temperature. The cooled to room temperature sample crystals will be assembled into a small pipe test system, the sample into the medium, such as water natural gas, etc.. If necessary, the test system is sealed for testing (e.g., gas concentration test), and the combined sensing device is energized to determine if it can display/transmit data information. Small pipe test system assembly drawings provided by the manufacturer, the test temperature can also be provided by the manufacturer, but need to be described in the corresponding technical documents.
7.2.3 Low temperature resistance
The specimen is placed in the cryostat without electricity, cooled to (- 20 Shi 2) C, held for (120 Shi 2) min and then removed and brought to room temperature. The sample will be warmed to room temperature and assembled into a small pipeline test system, the sample into the medium, such as water, natural gas, etc.. If necessary, the test system is sealed for testing (e.g., gas concentration test), and the combined sensing device is energized to determine if it can display/transmit data. Small pipe test system assembly drawings provided by the manufacturer, the test temperature can also be provided by the manufacturer, but need to be described in the corresponding technical documents.
7.2.4 Free fall
At room temperature, the specimen shall be dropped from a height of (1.00-0.05) m onto the concrete floor. Side up, the number of drops of the same specimen is 3 times. After the fall, the sample is assembled into a small pipe test system, the sample through the medium, such as water. Natural gas, etc., if necessary, the test system needs to be sealed for testing (such as gas concentration test), in the power state, to determine whether its combination of sensing equipment part can display / transmit data information. Small pipe test system assembly drawings provided by the manufacturer, the free fall height can also be provided by the manufacturer, but need to be stated in the corresponding technical documents.
7.3 Other tests
Test according to the provisions of the corresponding product documentation.
8 Test rules
8.1 Inspection classification
The inspection is divided into factory inspection and type inspection.
8.2 Group batch
The group of products should be in accordance with the provisions of the corresponding documents in Table 1.
8.3 Factory inspection
In addition to the factory inspection of the product in accordance with the provisions of the corresponding documents in Table 1, should also include 6.2 in the high and low temperature test.
8.4 Type inspection
8.4.1 Type inspection items for all technical requirements of Chapter 6. According to the provisions of the corresponding product standards for inspection, in the inspection of qualified samples. Randomly take enough samples of the other tests.
8.4.2 In general, every three years for a type test. If one of the following circumstances, the type test should be carried out:
a) new products or old products transferred to the production of prototype identification;
b) structure. Materials. Process has a large change may affect the performance of the product;
c) more than a year out of production when resuming production;
d) the factory test results and the last type test results have significant differences.
8.5 Judgment rules
In addition to the provisions of the crystal corresponding to the determination of qualified, one or more of the other properties fail to meet the requirements, the batch of two randomly selected samples of the crystal for the re-test of the failure, such as still failing items, is judged to be unqualified batch.
9 mark packaging. Transportation and storage
9.1 Logo
9.1.1 Intelligent plastic pipe should have at least the following signs:
a) the manufacturer's name (or abbreviation) and trademark;
b) Product name, should be indicated: intelligent;
c) product specifications:
9.2 Packaging
The product should be packaged, and the packaging method can be determined by mutual agreement between the supply and demand.
9.3 Transportation
Product crystal in handling and transportation, should not be hit, exposure. Throwing and heavy pressure.
9.4 Storage
The products should be stored in the warehouse, reasonably placed, away from heat sources.
