最新白菜网送彩金大全

Contact Us

Fakai Valve Factory Site: Yongxing Industrial Zone, Longwan District, Wenzhou City Tel: 0577-88767789
Fax: 0577-85983279
Mobile: 15958706338
Contact: Mr. Wang Email: 1552028357@qq.com
Website: http://klhqcm.com

HH46X / HDH48X Micro-resistance Slow-closing Butterfly Check Valve

HH46X / HDH48X Micro-resistance Slow-closing Butterfly Check Valve Structure
HH46X / HDH48X Micro-resistance Slow-closing Butterfly Check Valve Structure

Scope of application

HH46X / HDH48X micro-resistance slow-closing butterfly check valve can be used on the drainage pipes of water, sewage, seawater and other media. It can prevent the backflow of the medium and can effectively limit the destructive water hammer to ensure the safety of the pipeline. It has the characteristics of novel structure, small size, light weight, small fluid resistance, reliable sealing, stable opening and closing, wear resistance, long service life, oil pressure, slow closing not affected by media, and good energy saving effects. Adopting double-lobed butterfly structure design, the unique dual hydraulic slow-closing mechanism guarantees the reliability of slow-closing, and the rubber soft-seal valve seat guarantees excellent sealing performance, which can prevent the medium from flowing back and eliminate destructive water hammer, and can effectively reduce The water hammer pressure at which the valve is closed can ensure the safe operation of the pipe network.

Structural features

  1. Small size, light weight and structural length is only about one third of the swing check valve.
  2. The slow-closing system has excellent performance and is not affected by the medium in the pipeline. The valve flap is closed first and then closed slowly to prevent destructive water hammer.
  3. Soft rubber seal, good sealing performance, wear resistance and long service life.
  4. Rubber buffer, smooth opening and closing, no vibration, no noise.
  5. It has smaller flow resistance than the old check valve and has obvious energy saving effect.

Part material

Part Name Valve body Disc Stem, cylinder, piston spring Valve seat
material Cast iron, cast steel Carbon steel aluminum bronze stainless steel stainless steel Nitrile rubber

Performance parameter

model Nominal pressure
PN (MPa)
Strength test pressure Sealing pressure
(MPa)
proper temperature
(℃)
Applicable medium Slow closing time
HH46X
HDH48X
1.0 1.5 1.1 ≤80 Clean water sewage sea water ≤60 seconds
1.6 2.4 1.76
2.5 3.75 2.75

Dimension table

Nominal pressure
PN (MPa)
Nominal diameter
DN (mm)
Size (mm)
L H H1
1.0
1.6
2.5
40 140 200 88
50 150 215 98
65 170 225 108
80 180 235 118
100 190 280 130
125 200 290 148
150 210 310 172
200 230 350 210
250 250 415 240
300 270 450 264
350 290 480 297
400 310 550 324
450 330 585 351
500 350 640 379
600 390 720 434
700 430 780 491
800 470 840 549
900 510 990 600
1000 550 1050 655
1200 630 1210 770