Safety valve inspection
Thread Content
I would like to ask everyone: does the safety valve that comes standard with plunger-type high-pressure pumps need to be inspected? The company’s equipment department says it isn’t necessary, but the equipment manufacturer states that some owners do conduct inspections. However, since there is no nameplate for such inspections, the various parameters are not available.
Firstly, the safety valve built into the equipment does not meet the specifications. According to the provisions on markings in Article B3.4.1 of the \"Safety Technical Inspection Regulations for Safety Valves\", the nameplate of the safety valve or its outer surface must bear clear markings of at least the following information; among these, the product number should be a permanent marking on the valve body: 1. The manufacturing license number and markings for the safety valve； 2. Name of the manufacturing unit ； 3. Safety valve model ； 4. Manufacturing date and product number ； 5. Nominal pressure ； 6. Nominal diameter ； 7. Channel diameter or channel area ； 8. Setting pressure ； 9. Valve body material ； 10. Rated displacement coefficient or the rated displacement guaranteed for a certain fluid. In accordance with the provisions of B4.3 on pre-installation inspections in the \"Safety Regulations for Safety Valves,\" before installing a safety valve, a visual inspection, a setting pressure test, and a sealing test must be carried out; when special requirements apply, other performance tests shall also be conducted.
Inspection shall be carried out in accordance with the \"Safety Technical Inspection Regulations for Safety Valves TSGZF001-2006\"
Inspections shall be carried out in accordance with the \"Safety Technical Inspection Regulations for Safety Valves TSGZF001-2006\", once a year.
Safety valves must be inspected once a year
Safety valves are considered special equipment; they must be calibrated by a qualified testing institution before being sealed with a seal, and this calibration must be carried out annually!