Pressure

Testing pressure at constant temperature(MPa)

Applicable temperature

Applicable medium

Shell testing

High-pressure seal

Low-pressure seal

Pound grade (Class)

150

2.94

2.16

0.60

-290----1210 or

upon the user requirement

Natural gas

liquefied gas

coal gas

oil

water

steam, etc.

300

7.67

5.62

0.60

400

10.2

7.48

0.60

600

15.3

11.23

0.60

900

23.0

16.85

0.60

1500

39.0

28.60

0.60