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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.