The rated pressure of high-pressure indoor gas pipeline and gas burner of gas equipment shall comply with the current national standard Code for Design of Town Gas (GB 50028-2006);
1. Materials such as pipes, fittings, fittings and valves used in indoor gas pipelines shall comply with the provisions of design documents, and the inspection before installation shall be carried out according to the current national standards. Unqualified materials shall not be used.
2. Before the installation of indoor gas pipeline, the superstructure should meet the requirements of pipeline construction and installation.
3, gas pipeline installation should be according to the design and construction drawing for pipeline prefabrication and installation.
4. For pipes, fittings and fittings used in gas pipelines, if the pipe diameter is less than or equal to 50, galvanized steel pipes or copper pipes should be adopted when there is no clear stipulation in the design documents; When the pipe diameter is greater than 50 or the service pressure exceeds 10kPa, it shall meet the standards.
5, gas pipeline construction, in order to avoid the pipeline weld towards the wall, the pipeline weld is not obvious place should be marked in advance.
6, buried in the wall of copper pipe or stainless steel corrugated pipe, should use a special excavator slot. The width of the irrigation ditch should be the outer diameter of the pipeline plus 20mm, and the depth should meet the requirement that the covering thickness should not be less than10 mm. It is strictly forbidden to dig trenches on load-bearing walls, columns and beams.
2. What are the requirements for natural gas pipeline installation?
1, natural gas pipeline installation location requirements
When installing gas pipelines indoors, it is strictly forbidden to install gas pipelines and facilities in places such as bathrooms, study rooms and bedrooms where air circulation is not good enough or temporary rest. In addition, it is strictly forbidden to use the direct-row gas water heater that has been eliminated by the state, because the direct-row gas water heater directly discharges the burnt waste gas into indoor household appliances, which will cause carbon monoxide poisoning for indoor personnel.
2. Requirements for kitchen renovation
Because the kitchen has an air inlet, the position of the kitchen cannot be changed at will. If it must be changed, it must also consult the housing design unit, and the housing design unit will issue a change plan.
In addition, there must be explosion-proof system and ventilation system after kitchen decoration to prevent gas explosion or carbon monoxide poisoning. In addition, if you just want to dismantle the gas pipeline in the kitchen, you must ask professionals to operate it; Failure to operate according to the specifications or to dismantle and change the gas pipeline or replace the joint at will may cause safety hazards such as gas leakage and seriously endanger life.
3, the general provisions of the gas pipeline installation
In the process of gas pipeline laying, other pipelines may be encountered. At this time, the clear distance between pipes should be strictly controlled. Such as horizontal parallel laying, the clear distance should not be less than150 mm; ; When laying vertically and parallel, the clear distance should not be less than 100mm, and it should be located outside other pipelines; When laying crosswise, the clear distance shall not exceed 50 mm, which is to prevent the gas pipeline from leaking, and only in this way can the specification for safe gas pipeline installation be achieved.
4, gas pipeline quality requirements
Natural gas pipeline installation, natural gas instruments, valves and other gas facilities must be produced by regular manufacturers, and their air tightness and corrosion resistance must be guaranteed.
5. Requirements for gas appliances
Besides the installation of natural gas pipeline is related to the safety of kitchen gas, attention should also be paid to the use of gas appliance. No matter what kind of kitchen utensils, gas appliance should be set in a kitchen with good ventilation and exhaust conditions, and avoid being set in a rest place such as a bedroom. The clear height of the room where the gas stove is installed should not be less than 2.2m, and the clear height of the room where the gas water heater is installed should not be less than 2.4m.. ..
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