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H44H Check Valve

Product Overview

H44H check valve is suitable for pipelines under various operating conditions, such as pressure PN1.6-42.0MPa (CL150-CL2500), operating temperature -46-570℃ in petroleum, chemical, pharmaceutical, fertilizer, power industry, etc., to prevent reverse flow of media.

Structural characteristics

Flange connection lifting check valve is suitable for nominal pressure PN1.6-42.0mpa (CL150 ~ CL2500), working temperature -46℃~550℃ petroleum, pharmaceutical, chemical fertilizer, electric power industry and other working conditions of the pipeline, to prevent the backflow of media.
Its main structural features are as follows:
1. Reasonable product structure, reliable sealing, excellent performance and beautiful appearance;
2, the surface welding Co base hard alloy, wear resistance, corrosion resistance, abrasion resistance, long service life;
3. The built-in pin shaft structure reduces the leakage point and ensures reliable use;
4. When the pressure is ≥ 16.0mpa, the valve cavity adopts self-tightening sealing structure. The higher the medium pressure is, the better the sealing performance will be.
5. The material, flange and butt welding end size of the parts can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.

Execution standard

Pressure and temperature rating: GB/T 12224
Structure length: GB/T 12221, GB/T 15188
Flange type dimensions: GB/T 9113, JB/T 79
Butt weld end connection: GB/T 12224
Inspection and test: JB/T 9092 GB/T13927

Performance parameter

Main material: carbon steel, stainless steel, alloy steel
Nominal size: NPS 2 "~ NPS 48" DN50 ~ DN1200
Pressure range: CL150 ~ CL2500 PN10 ~ PN420
Operating temperature: -196℃ ~ +600℃
Application: applicable to petroleum, chemical, pharmaceutical, chemical fertilizer, power industry, low temperature and other conditions of the pipeline.

Product Dimensions

DN(mm)

L

D

D1

D2

b

f

Z-φd

H

WT (kg)

H44H-16C       H44W-16P/R/PL/RL      H44Y-16I

50

230

165

125

102

18

3

4-18

135

21

65

290

185

145

122

18

3

8-18

142

28

80

310

200

160

138

20

3

8-18

165

38

100

350

220

180

158

20

3

8-18

180

58

125

400

250

210

188

22

3

8-18

210

92

150

480

285

240

212

22

3

8-22

233

130

200

600

340

295

268

24

3

12-22

304

210

250

730

405

355

320

26

3

12-26

348

294

300

850

460

410

378

28

4

12-26

390

367

350

980

520

470

438

30

4

16-26

430

410

400

1100

580

525

490

32

4

16-30

468

461

450

1200

640

585

550

40

4

20-30

523

570

500

1250

715

650

610

44

4

20-33

525

850

H44H-25C       H44W-25P/R/PL/RL     H44Y-25I

50

230

165

125

102

20

3

4-18

160

22

65

290

185

145

122

22

3

8-18

175

29

80

310

200

160

138

24

3

8-18

185

38

100

350

235

190

162

24

3

8-22

220

61

125

400

270

220

188

26

3

8-26

248

96

150

480

300

250

218

28

3

8-26

276

132

200

600

360

310

278

30

3

12-26

350

213

250

730

425

370

335

32

3

12-30

410

297

300

850

485

430

395

34

4

16-30

430

372

350

980

555

490

450

38

4

16-33

518

415

400

1100

620

550

505

40

4

16-36

560

480

450

1200

670

600

555

46

4

20-36

582

610

500

1250

730

660

615

48

4

20-36

618

920



DN(mm)

L

D

D1

D2

D6

b

f

F1

Z-φd

H

WT (kg)

H44H-40C       H44W-40P/R/PL/RL       H44Y-40I

50

230

165

125

102

88

20

3

4

4-18

169

22

65

290

185

145

122

110

22

3

4

8-18

173

29

80

310

200

160

138

121

24

3

4

8-18

185

38

100

350

235

190

162

150

24

3

4.5

8-22

220

61

125

400

270

220

188

176

26

3

4.5

8-26

248

96

150

480

300

250

218

204

28

3

4.5

8-26

270

132

200

600

375

320

285

260

34

3

4.5

12-30

342

213

250

730

450

385

345

313

38

3

4.5

12-33

401

297

300

850

515

450

410

364

42

4

4.5

16-33

423

372

350

980

580

510

465

422

46

4

5

16-36

455

415

400

1100

660

585

535

474

50

4

5

16-39

510

480



DN(mm)

L

D

D1

D2

D6

b

f

F1

Z-φd

H

WT (kg)

H44H-64C       H44W-64P/R/PL/RL       H44Y-64I

50

300

180

135

102

88

26

3

4

4-22

177

27

65

340

205

160

122

110

26

3

4

8-22

197

37

80

380

215

170

138

121

28

3

4

8-22

212

57

100

430

250

200

162

150

30

3

4.5

8-26

248

89

125

500

295

240

188

176

34

3

4.5

8-30

296

135

150

550

345

280

218

204

36

3

4.5

8-33

380

184

200

650

415

345

285

260

42

3

4.5

12-36

385

266

250

775

470

400

345

313

46

3

4.5

12-36

445

396

300

900

530

460

410

364

52

4

4.5

16-36

474

643

350

1025

600

525

465

422

56

4

5

16-39

514

815

400

1150

670

585

535

474

60

4

5

16-42

616

1234

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