Are there any requirements for the installation of strainers and pressure relief valves? What are the requirements for the straight pipe sections immediately before and after?

This post was last edited by goldliyang on 2017-6-20 at 11:24. 1. Before installing the steam trap, it is necessary to purge the pipeline with pressurized steam in order to remove any debris from within it. 2. A filter should be installed in front of the steam trap to prevent it from being clogged by debris in the pipes, and the filter should be cleaned regularly. 3. Valves should be installed before and after the steam trap to facilitate its maintenance at any time. 4. The direction of the condensed water flow must be consistent with the arrow indicator on the installation of the steam trap. 5. The drain valve should be installed at the lowest point of the equipment outlet to discharge condensate in a timely manner and prevent vapor lock in the pipes. 6. If there is no space at the lowest point of the equipment to install a steam trap, a check valve (condensate lift fitting) should be installed at the lowest outlet point to raise the condensate level before installing the steam trap, thereby preventing vapor lock. 7. The outlet pipe of the steam trap should not be submerged in water. (If submerged in water, a hole should be drilled at the bend to break the vacuum and prevent sand from being sucked back in.) ) 8. Mechanical steam traps should be installed horizontally. 9. Steam traps should not be installed in series. 10. Each piece of equipment should be equipped with its own drain valve. 11. A supercooled pipe without insulation of more than one meter is required in front of thermostatic steam traps; other types of steam traps should be placed as close as possible to the equipment. 12. When selecting a steam trap for drum-type drying (with siphon tube) equipment, please specify that a steam trap equipped with an anti-steam-locking device should be used to prevent steam locking in the equipment. 13. If there is a system for recovering condensed water after the steam trap, the outlet pipe of the steam trap should be connected to the main pipeline above the recovery main pipe, in order to reduce backpressure and prevent backflow. 14. If condensate is to be recovered after the steam trap, pipelines of different pressure levels should be separated for recovery. 15. The main condensate recovery pipe downstream of the steam trap must not have a slope, as this will increase the back pressure on the steam trap. 16. A steam trap should be installed before the condensed water enters the main recovery pipe, behind the steam trap, to prevent backflow of the condensed water. 17. Install steam traps on the steam pipes; a condensate collection tank should be provided on the main pipe, with its size being close to the radius of the main pipe, and then small pipes should be used to lead the condensate to the steam traps. 18. When a mechanical drain valve is not in use for an extended period of time, the drain screw should be removed to release the water inside, thereby preventing freezing. 19. If it is detected that the steam trap is leaking steam, it is necessary to drain waste water and clean the filter screen promptly. Regular inspections should be carried out based on actual usage conditions, and any faults should be repaired immediately. It should be inspected at least once a year to remove impurities from inside. The installation of steam traps shall meet the following requirements: a) Thermodynamic steam traps should be installed on horizontal pipes; b) Float-type steam traps must be installed horizontally, and when placed outdoors, necessary anti-freezing measures shall be taken; c) Bimetallic steam traps can be installed either horizontally or vertically; d) Pulse-type steam traps are generally installed on horizontal pipes with the valve cover facing upward; e) Inverted bucket-type steam traps must be installed horizontally without any tilt, and water can be filled into them before operation, or the inlet valve of the steam trap can be opened, allowing condensate to fill it before the steam trap is activated.