Product Description
LH45X current limiting check valve supports the working point of the pump to work in the high-efficiency area, restricts the large flow of the pump, and runs at low efficiency. At the same time, when the pump is stopped by the micro-resistance slow-closing check, it is closed without water hammer phenomenon; it can also prevent the pump from overloading and exceeding the rated value. The current burns out the motor, and there is a stepless adjustment of the head function, which limits the adjustable range of the head to 0.1-0.6MPa, the pressure is set at 0.1MPa, and the temperature of the adjustable medium is between 0-150℃.
The Main Technical Parameters
DN | DN20-DN600 | |||
PN | 1.0MPa | 1.6MPa | 2.5MPa | |
Test pressure | Case | 1.5MPa | 2.4MPa | 3.75MPa |
Seal | 1.1MPa | 1.76MPa | 2.75MPa | |
Proper temperature | 0℃~80℃ | |||
lower working pressure | P1≥0.07MPa | |||
Structure length standard | Q/BYL | |||
Flange connection standard | GB/T 17241.6 | |||
Test pressure standard | GB/T 13927 API 598 |
Main External Connection Dimensions
DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
L | 150 | 160 | 180 | 200 | 203 | 216 | 241 | 270 | 292 | 330 | 400 | 480 | 550 | 622 | 685 | 750 | 811 | 935 |
H1 | 106 | 106 | 106 | 137 | 137 | 145 | 178 | 232 | 286 | 318 | 413 | 502 | 600 | 638 | 677 | 677 | 750 | 850 |