SLUDGE-PREVENTING OBSTRUCTING VALVE ENHS41X
A. SLUDGE-PREVENTING OBSTRUCTING VALVE ABOUT THE PRODUCT
This valve is a new-style control valve self developed by our company, by means of introducing foreign advanced know-how. And it is used in the conditions that the water supply pipe network at present is seriously polluted due to back flow. And it is safe, reliable and able to prevent the back flow pollution of drinking water so as to make sure of both safety and sanitation of living and drinking water.

B. SLUDGE-PREVENTING OBSTRUCTING VALVE PURPOSE AND SCHEMATIC DIAGRAM OF INSTALLATION
Mainly used for the drinking water supply system of high buildings, fire-fighting water system, air-conditioning and refrigerating, the water supply pipeline in water works etc. to prevent of the water back flow inside the pipeline, causing back-flow pollution.

C. SLUDGE-PREVENTING OBSTRUCTING VALVE BRIEF FIGURE OF STRUCTURE
SLUDGE-PREVENTING OBSTRUCTING VALVE ENHS41X
SLUDGE-PREVENTING OBSTRUCTING VALVE ENHS41X
ENHS41X

D. SLUDGE-PREVENTING OBSTRUCTING VALVE MAIN PERFORMANCE PARAMETERS
PN(MPa) Seal test(water) MPa Strength test(water) MPa Working temperature Medium
1.6 1.76 2.4 ≤80℃ Clean-water

E. SLUDGE-PREVENTING OBSTRUCTING VALVE MAIN CONNECTION DIMENSIONS
DN
mm
Way of installation L(mm) L(mm) Tubular thread D(mm) D1 With sludge drain H1(mm) H(mm) Width(mm) No of bolt hole   n-φd(mm)
20 Pipe thread 260 13 /4“   130 65 208  
25 260 1“   140 80 210  
32 280 11/4“   180 90 215  
40 320 11/2“   270 150 235  
50 400 2“   280 160 250  
40 Flange 440 415 145 100 335 165 235 4-18
50 500 458 160 125 360 180 250 4-18
65 620 480 180 145 560 250 425 4-18
80 680 550 195 160 640 285 450 8-18
100 760 650 215 180 695 310 465 8-18
125 870 735 245 210 730 340 495 8-18
150 1030 790 280 240 780 390 695 8-23
200 1170 1000 335 295 895 445 730 12-23
250 1320 1185 405 355 980 530 750 12-25

F. SLUDGE-PREVENTING OBSTRUCTING VALVE SCHEMATIC DIAGRAM OF INSTALLATION
SLUDGE-PREVENTING OBSTRUCTING VALVE ENHS41X

The technical data subject to amend without notice