Pressure rating ceiling values

Temperature

Working Pressure

(F)

Class 150

Class 300

Class 400

Class 600

Class 900

Class 1500

Class 2500

-20 to 100

290

750

1000

1500

2250

3750

6250

200

260

750

1000

1500

2250

3750

6250

300

230

730

970

1455

2185

3640

6070

400

200

705

940

1410

2115

3530

5880

500

170

665

885

1330

1995

3325

5540

600

140

605

805

1210

1815

3025

5040

650

125

590

785

1175

1765

2940

4905

700

110

570

755

1135

1705

2840

4730

750

95

530

710

1065

1595

2660

4430

800

80

510

675

1015

1525

2540

4230

850

65

485

650

975

1460

2435

4060

900

50

450

600

900

1350

2245

3745

950

35

385

515

775

1160

1930

3220

1000

20

365

485

725

1090

1820

3030

1050

20(1)

360

480

720

1080

1800

3000

1100

20(1)

325

430

645

965

1610

2685

1150

20(1)

275

365

550

825

1370

2285

1200

20(1)

205

275

410

620

1030

1715

1250

20(1)

180

245

365

545

910

1515

1300

20(1)

140

185

275

410

685

1145

1350

20(1)

105

140

205

310

515

860

1400

20(1)

75

100

150

225

380

630

1450

20(1)

60

80

115

175

290

485

1500

15(1)

40

55

85

125

205

345

 

Pressure is given in psig
(1) For butt welding ends valves only. Flange ratings end at 1000F
Warning These data are given for information, we do not assume any responsibility on designs or others that will be figured out of them. For further information please refer on your valve manufacturer's design data sheets.