4.3 General Standards
4.3.1 Installation of mixers.
1 Scope of application：electrical mixers in water treatment system.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.1.
Table 4.3.1 Installation of mixers
4.3.2 Installation of corrosion resistant pumps.
1 Scope of application：fiber glass reinforced plastics pumps，plastic pumps，ceramic pumps，selfpriming pumps，and so on.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.2.
Table 4.3.2 Installation of corrosion resistant pumps
Table 4.3.2（Continued）
4.3.3 Installation of submerged vertical pumps.
1 Scope of application：installation of submerged vertical pumps for water treatment system，wastewater treatment system，etc.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.3.
Table 4.3.3 Installation of submerged vertical pumps
Table 4.3.3（Continued）
4.3.4 Installation of plunger metering pumps.
1 Scope of application：water treatment system.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.4.
Table 4.3.4 Installation of plunger metering pumps
4.3.5 Installation of diaphragm metering pumps.
1 Scope of application：water treatment system.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.5.
Table 4.3.5 Installation of diaphragm metering pumps
4.3.6 Installation of ordinary fans.
1 Scope of application：CO2 removal devices.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.6.
Table 4.3.6 Installation of ordinary fans
4.3.7 Installation of roots fans.
1 Scope of application：roots fans of various models.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.7.
Table 4.3.7 Installation of roots fans
Table 4.3.7（Continued）
4.3.8 Installation of oil free lubrication air compressors.
1 Scope of application：oil free lubrication air compressors.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.8.
Table 4.3.8 Installation of oil free lubrication air compressors
Table 4.3.8（Continued）
Table 4.3.8（Continued）
Table 4.3.8（Continued）
4.3.9 Installation of air purification devices.
1 Scope of application：air purification device.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.9.
Table 4.3.9 Installation of air purification devices
4.3.10 Installation of storage tanks.
1 Scope of application：compressed air storage tanks，hot water tanks.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.10.
Table 4.3.10 Installation of storage tanks
4.3.11 Installation of chemical dosing devices.
1 Scope of application：chemical dosing devices for coagulant，coagulant aids，flocculant，scale inhibitor，defoaming agent，germicide，algicide，acid，alkali，sodium sulfite，ammonia，hydrazine，phosphate，etc.
2 Check quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.11.
Table 4.3.11 Chemical dosing devices
Table 4.3.11（Continued）
4.3.12 Installation of lime pipes.
1 Scope of application：lime slurry pipes，magnesite slurry pipes.
2 Check quantity：check section by section according to the system.
3 Quality standards and inspection methods are as shown in Table 4.3.12.
Table 4.3.12 Installation of lime pipes
4.3.13 Installation of rubber lined pipes.
1 Scope of application：demineralized water，circulating water treatment，condensate treatment and chemical dosing systems.
2 Check quantity：check them section by section or randomly according to the system，pipes and pipe fittings of the acid system shall be checked one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.13.
Table 4.3.13 Installation of rubber lined pipes
Table 4.3.13（Continued）
4.3.14 Installation of plastic lined pipes.
1 Scope of application：demineralized water，circulating water treatment，condensate treatment and chemical dosing systems.
2 Check quantity：check them section by section or randomly according to the system.
3 Quality standards and inspection methods are as shown in Table 4.3.14.
Table 4.3.14 Installation of plastic lined pipes
Table 4.3.14（Continued）
4.3.15 Installation of fiber glass reinforced plastics pipes.
1 Scope of application：water treatment system.
2 Check quantity：check them section by section according to the system.
3 Quality standards and inspection methods are as shown in Table 4.3.15.
Table 4.3.15 Installation of fiber glass reinforced plastics pipes
4.3.16 Installation of plastic pipes.
1 Scope of application：water treatment system.
2 Inspection quantity：check them section by section according to the system.
3 Quality standards and inspection methods are as shown in Table 4.3.16.
Table 4.3.16 Installation of plastic pipes
4.3.17 Installation of composite pipes.
1 Scope of application：the composite pipes like steel framed pipes，hot melted pipes，mesh steel reinforced pipes.
2 Inspection quantity：check them section by section or randomly according to the system.
3 Quality standards and inspection methods are as shown in Table 4.3.17.
Table 4.3.17 Installation of composite pipes
4.3.18 Installation of stainless steel pipes.
1 Scope of application：water treatment and hydrogen station system.
2 Inspection quantity：check them section by section or randomly according to the system.
3 Quality standards and inspection methods are as shown in Table 4.3.18.
Table 4.3.18 Installation of stainless steel pipes
4.3.19 Installation of special valves.
1 Scope of application：various lined valves and non-metal valves.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.19.
Table 4.3.19 Installation of special valves
4.3.20 Installation of special pipe supports and hangers.
1 Scope of application：stainless steel pipes，non-metal pipes，composite pipes.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.20.
Table 4.3.20 Installation of special pipe supports and hangers
Table 4.3.20（Continued）
4.3.21 Valve adjustment.
1 Scope of application：water treatment system，electric，pneumatic valves and pressure reducing valves.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.21.
Table 4.3.21 Valve adjustment
4.3.22 Hydraulic，water filling test.
1 Scope of application：water treatment system.
2 Inspection quantity：check them item by item.
3 Quality standards and inspection methods are as shown in Table 4.3.22.
Table 4.3.22 Hydraulic，water filling test
4.3.23 Air pressure test.
1 Scope of application：water treatment and hydrogen generation equipment and system with design pressure not higher than 0.6MPa.
2 Inspection quantity：check them item by item.
3 Quality standards and inspection methods are as shown in Table 4.3.23.
Table 4.3.23 Air pressure test
4.3.24 Trial run of water pumps.
1 Scope of application：corrosion resistant pumps，submerged vertical pumps of water treatment system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.24.
Table 4.3.24 Trial run of water pumps
4.3.25 Trial run of reciprocating pumps.
1 Scope of application：plunger pumps，diaphragm pumps of water treatment system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.25.
Table 4.3.25 Trial run of plunger pumps，diaphragm pumps
4.3.26 Trial run of fans.
1 Scope of application：carbon removal fans，roots fans and air compressors.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.26.
Table 4.3.26 Trial run of fans
Table 4.3.26（Continued）
4.3.27 Trial run of self-cleaning filter.
1 Scope of application：various types of self-cleaning filters of water treatment system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.27.
Table 4.3.27 Trial run of self-cleaning filters
Table 4.3.27（Continued）
4.3.28 Trial run of mixers.
1 Scope of application：various types of mechanical mixers of water treatment system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.28.
Table 4.3.28 Trial run of mixers
4.3.29 Trial run of chemical dosing devices.
1 Scope of application：chemical dosing devices for coagulant，coagulant aids，flocculant，scale inhibitor，deforming agent，germicide，algicide，acid，alkali，sodium sulfite，ammonia，hydrazine，phosphate，etc.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.29.
Table 4.3.29 Trial run of chemical dosing devices
4.3.30 Water flushing.
1 Scope of application：water treatment system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.30.
Table 4.3.30 Water flushing
4.3.31 Air purging.
1 Scope of application：water treatment system and hydrogen station system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.31.
Table 4.3.31 Air purging
4.3.32 Steam purging.
1 Scope of application：sea water desalination system.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.3.32.
Table 4.3.32 Steam purging
