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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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H41H / W Lifting Flange Check Valve

H41H / W Lifting Flange Check Valve Structure
H41H / W Lifting Flange Check Valve Structure

Scope of application

H41H / W lifting flange check valve is a check valve whose valve disc slides along the vertical centerline of the valve body. It can only be installed on horizontal pipelines. The high-pressure small-diameter check valve disc can be spherical, The shape of the valve body of the lift check valve is the same as that of the shut-off valve (it can be used with the shut-off valve), so its fluid resistance coefficient is larger, but the seal is better than the swing-open type. It is suitable for pipelines with various working conditions such as nominal pressure PN1.6 ~ 6.4MPa and working temperature -29 ~ 550 ℃. Applicable medium: water, oil, steam, etc.

working principle

When the medium flows into the lifting check valve body from the direction indicated by the arrow of the valve body, the pressure of the medium exerts an upward thrust on the valve disc. When the medium thrust force is greater than the gravity of the valve disc, the valve opens. When the force of the medium pressure on the disc after the lifting check valve is added and the gravity of the disc itself is greater than the force of the pressure on the disc before the valve, the valve is closed to prevent the medium from flowing backward.

Structural features

1. Exquisite selection of materials, meeting domestic and foreign relevant standards, high overall quality of materials.
2. The sealing pairing is advanced and reasonable. The sealing surfaces of the valve disc and the valve seat are made of iron-based alloy or Stellite cobalt-based hard alloy surfacing. ,long lasting.
3. The product is designed and manufactured according to national standard GB / T12235.
4. Various piping flange standards and flange seal types can be used to meet various engineering needs and user requirements.
5. The valve body has a complete variety of materials. The gasket can be reasonably selected according to the actual working conditions or user requirements, and can be applied to various pressure, temperature and medium working conditions. We can design and manufacture non-return valves with different structural forms and connection forms according to user requirements, which can be used for various equipment.

Performance specifications

Design and Manufacturing GB / T12235
Connection size Structure length GB / T12221
Flange size JB / T79
Inspection and test JB / T9092
material Carbon steel GB / T12229
stainless steel GB / T12230
alloy steel Q / ZB66
Sign GB / T12220
Supply JB / T7928

Part material

Valve body cap Disc Valve seat Applicable medium proper temperature
(≤ ℃)
WCB WCB + D507Mo WCB + D577 Water, oil, steam 425
ZG1Cr18Ni9Ti 0Cr18Ni9 +
Stellite12
0Cr18Ni9 +
Stellite6
Acid 200
ZG1Cr18Ni2Mo2Ti CF8M + Stellite12 ZG1Cr18Ni2Mo2Ti Phosphoric acid, acetic acid, mixed acid 200
ZG00Cr17Ni14Mo2 CF3M + Stellite12 CF3M + Stellite6 Urea, methylammonium solution, phosphoric acid 200
ZG1Cr5Mo ZG1Cr5Mo +
Stellite12
ZG1Cr5Mo +
Stellite6
Water, oil, steam 550

Dimension table

Nominal diameter Main dimensions and connection dimensions
L D D1 D2 b Zd H
H41H-16C H41W-16C H41W-16P H41W-16R H41W-16I
15 130 95 65 45 14 4-14 77
20 150 105 75 55 14 4-14 77
25 160 115 85 65 14 4-14 80
32 180 135 100 75 16 4-18 85
40 200 145 110 85 16 4-18 95
50 230 160 125 100 16 4-18 105
65 290 180 145 120 18 4-18 120
80 310 195 160 135 20 8-18 130
100 350 215 180 155 20 8-18 140
125 400 245 210 185 twenty two 8-18 155
150 480 280 240 210 twenty four 8-23 180
200 600 335 295 265 26 12-23 215
250 730 405 355 320 30 12-25 260
300 850 460 410 375 34 12-25 315
H41H-25 H41W-25 H41W-25P H41W-25R H41W-25I
15 130 95 65 45 16 4-14 100
20 150 105 75 55 16 4-14 105
25 160 115 85 65 16 4-14 120
32 180 135 100 78 18 4-18 130
40 200 145 110 85 18 4-18 135
50 230 160 125 100 20 4-18 149
65 290 180 145 120 twenty two 8-18 160
80 310 195 160 135 twenty two 8-18 169
100 350 230 190 160 twenty four 8-23 194
125 400 270 220 180 28 8-25 222
150 480 300 250 218 30 8-25 255
200 600 360 310 278 34 12-25 305
250 730 425 370 332 36 12-30 355
300 850 485 430 390 40 16-30 410