请教大神cfm56-5b 功能测试超压活门怎么做

梁二峰 · 发表于 2018-12-16 12:25:28

请教大神cfm56-5b 功能测试超压活门怎么做

UCFP:76779705-d66b-4390-9af2-da675ae3b450-1544932967026

海军1 · 发表于 2019-1-6 14:02:10

NOTE: The pressure value given in this test is applicable only to P/N 6740B01XXXX. Because the valves are interchangeable, it is necessary to do a check of the valve reference before the test. If the P/N reference is different from P/N 6740B01XXXX, refer to Para. C, D, E, F or G.
1.Pressurize the test set: · If there is a manometer in the air cylinder then the installation of the primary regulator valve is not necessary. Use the air cylinder shut off valve and the manometer to slowly pressurize the test set to 120 psig (8.27 bar rel.). · If there is no manometer in the air cylinder then the installation of primary regulator valve is mandatory. In this case the primary regulator valve will limit the pressure in the test set to 217 psig (14.96 bar rel.).

2.When you do the functional test for first time, apply a higher pressure than 110 psi (7.58 bar) to take off the clapper.

3.On the test set: · Open the shutoff valve. · Use the pressure regulator valve of the test set to slowly pressurize the system to 90 psig (6.21 bar rel.). On the overpressure valve (5HA): · The visual position indicator shows that the valve is fully closed when the pressure is more than 55 psig (3.79 bar rel.).
4.On the overpressure valve: · do a check of the electrical continuity between pin 2 and pin 3 of the electrical connector with an  OHMMETER MULTIRANGE . On the  OHMMETER MULTIRANGE : · There is electrical continuity between pin 2 and pin 3 of the electrical connector. NOTE: Electrical continuity between pin 2 and pin 3 of the electrical connector shows that the overpressure valve position agrees with the microswitch position (CLOSED).
NOTE: Read the pressure on the digital pressure gage.
5.On the test set: · Use the pressure regulator valve of the test set to slowly depressurize the system to open the overpressure valve. On the overpressure valve (5HA): · The visual position indicator shows that the overpressure valve is open when the pressure is equal to or more than 34.95 psig (2.41 bar rel.). NOTE: Read the pressure on the digital pressure gage.
6.On the overpressure valve: · do a check of the electrical continuity between pin 1 and pin 2 of the electrical connector with an  OHMMETER MULTIRANGE . On the  OHMMETER MULTIRANGE : · There is electrical continuity between pin 1 and pin 2 of the electrical connector. NOTE: Electrical continuity between pin 1 and pin 2 of the electrical connector shows that the overpressure valve position agrees with the microswitch position (OPEN).
7.On the test set: · Use the pressure regulator valve to decrease the pressure of the system to 0 psig (0.00 bar rel.). On the overpressure valve (5HA): · The visual position indicator shows that the valve is fully open.

C:\Users\Administrator\Desktop