Nominal pressure

0.6

1.0

1.6

2.0

2.5

4.0

5.0

6.4

10

Shell test pressure

0.9

1.5

2.4

3.0

3.8

6.0

7.5

9.6

15

High-pressure sealing test

0.66

1.1

1.16

2.2

2.8

4.4

5.5

7.1

11

Applicable medium temperature

YSQ4FM

Water,steam,and paper pulp solution <=180o C

YSQ40Y

Natural gas,coal gas,liquefied petroleum gas,crude oil,and heavy oil<=425 o C

YSQ40YM

Solution ,slurry,alumina powder,coal powder,coal ash,dust gases,and residues.etc <=300425 o C