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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
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H74X / H Thin Wafer Swing Check Valve

H74X / H Thin Wafer Swing Check Valve Structure
H74X / H Thin Wafer Swing Check Valve Structure

Structural features

H74X / HH74X / H thin wafer swing check valve design uses wafer connection, straight through single-valve swing-open automatic valve, the sealing surface of the valve body and valve disc can be made of stainless steel or Stellite. The pipe is used as a device to prevent the medium from flowing backward. It belongs to the ultra-thin check valve. It has the advantages of simple structure, beautiful appearance, light weight, and convenient installation. It is suitable for water supply systems, petroleum, chemical, metallurgical and other industrial sectors. Restricted places are most applicable.

Part material

Part Name Valve body, valve disc Sealing ring
material Carbon steel, stainless steel, copper Nitrile rubber, ternary acrylic rubber, polytetrafluoroethylene

Performance parameter

model Nominal pressure (MPa) Test pressure (MPa) Applicable temperature (℃) Applicable medium
case seal Hard seal Soft seal
H74X / H-10 1.0 1.5 1.1 ≤400 ≤120
Up to 250
Water, oil, acid and alkali
H74X / H-16 1.6 2.4 1.76
H74X / H-25 2.5 3.75 2.75
H74X / H-40 4.0 6.0 4.4

Dimensions

Nominal diameter D L D
Type I Type II PN1.0 PN1.6 PN2.5 PN4.0
50 25 15 twenty two 109 109 109 109
65 38 15 twenty two 129 129 129 129
80 46 15 twenty two 144 144 144 144
100 72 15 twenty four 164 164 170 170
125 95 16 26 186 186 194 194
150 114 19 29 221 221 226 226
200 140 29 43 275 275 283 293
250 188 29 43 330 331 343 355
300 216 38 50 380 386 403 420
350 263 41 52 440 446 460 477
400 305 51 62 491 498 517 549
450 356 51 62 541 558 567 574
500 406 65 80 596 620 627 631
600 482 70 90 698 737 734 750

Note: (1) Flange connection size: According to GB / T9113.1-2000 standard. (2) Type I is used for stable flow conditions; type II adds a spring device on the basis of type I.