AUTOMATIC SLUDGE-DRAINING FILTER
A. AUTOMATIC SLUDGE-DRAINING FILTER GENERAL
Model GPG filter can be used for industrial cooling with low-quality water and also for the other technological processes requiring filtering. It features by the function to get rid of foreign matters by way of rinse reversely and is generally mounted before a heat exchanger or other executive mechanism for the periodic rinse and foreign matters' removal.

B. AUTOMATIC SLUDGE-DRAINING FILTER FEATURES
  1. Model GPG-L filter can work normally under the full flow, which means to keep a high-speed flow to lower the pressure, preventing of the surface dirt due to low flow-rate.
  2. It is mounted directly in the pipe network system, no need of any support structure.
  3. Saving space.
  4. Rinsing and draining sludge automatically, installing a by-pass.

C. AUTOMATIC SLUDGE-DRAINING FILTER WORKING PRINCIPLES
In the normal conditions, the steering valve opens and the water flow is drained out from the exit after being filtered through the filter barrel. When the sludge valve opens, the total flow of the liquid passed through the filter increases and the flow-rate enlarges to have the foreign matters adhered on the pipe wall of the filter. It is impacted and then drained out from the sludge exit. When the steering valve closes and the sludge valve is opened, the water flow is forced to go into the outside of the filter barrel from the screen holes on the inlet section of the barrel, most of which flows out of the exit and the residual portion goes into the filter barrel via the screen holes. And the foreign matters collected section from outside of the barrel to form the reversed rinse onto the filter barrel to get the effect to rinse the foreign matters attached on the screen holes from outside of the filer barrel, the foreign matters are still drained out through the sludge exit.

D. AUTOMATIC SLUDGE-DRAINING FILTER BRIEF FIGURE OF STRUCTURE
AUTOMATIC SLUDGE-DRAINING FILTER
AUTOMATIC SLUDGE-DRAINING FILTER
AUTOMATIC SLUDGE-DRAINING FILTER
AUTOMATIC SLUDGE-DRAINING FILTER

E. AUTOMATIC SLUDGE-DRAINING FILTER TECHNICAL PARAMETERS
PN (MPa) 1.0 1.6 2.5
Test pressure (MPa) 1.5 2.4 3.75
Body material WCB 1Cr18Ni9Ti
material of accessories 0Cr18Ni9Ti
Suitable temperature ≥225oC

F. AUTOMATIC SLUDGE-DRAINING FILTER MAIN EXTERNAL AND CONNECTION DIMENSIONS
DN
mm
PN1.0 PN1.6 PN2.5 GPGL GPGI
D D1 Z-φd D D1 Z-φd D D1 Z-φd A B L Dg A L Dg
100 220 180 8-18 220 180 8-18 235 190 8-22 265 160 365 32 350 260 32
125 250 210 8-18 250 210 8-18 270 220 8-26 315 190 440 40 438 326 40
150 285 240 8-22 285 240 8-22 300 250 8-26 375 220 520 50 525 390 50
200 345 295 8-22 340 295 12-22 360 310 12-26 500 260 670 65 700 520 65
250 395 350 12-22 405 355 12-26 425 370 12-30 625 310 830 80 875 650 80
300 445 400 12-22 460 410 12-26 485 430 16-30 750 350 1000 100 1050 780 100
350 500 460 16-22 520 470 16-26 555 490 16-33 875 410 1180 125 1200 885 125
400 565 515 16-26 580 525 16-30 620 550 16-36 1000 470 1350 150 1400 1040 150
450 615 565 20-26 640 585 20-30 670 600 20-36 1150 510 1500 150 1500 1145 150
500 670 620 20-26 715 650 20-33 730 660 20-36 1250 550 1680 150 1700 1250 150
600 780 725 20-30 840 770 20-41 840 770 20-41 1500 650 2000 200 2000 1460 200

The technical data subject to amend without notice