1.The requirements of molecular sieve adsorber, electric heater and other equipment in place are the same as those of air cooling columnof pre cooling system.
2.Process piping shall be constructed in strict accordance with relevant specifications and design and construction drawings.
3.The air tightness test shall be conducted before the valve is installed, and the test pressure and inspection standard shall be carried out according to the technical requirements of corresponding valves.
4.Pay attention to the direction of switch valve installation. V1201, V1202, V1207 and V1208 are front mounted valves, while V1203, V1204, V1205 and V1206 are reverse mounted valves. When the switch valve is installed, its shaft should be in a horizontal position, and the flange bolts should be evenly cross tightened.
5.The pipeline of pressureequalizing valveV1209 should have compensating bend.
