久久av高潮av_欧美日韩xxxxx_四虎影视一区二区精品_东北老头嫖妓猛对白精彩_亚洲日本久久久_免费看黑人强伦姧人妻

Body：

type ： forge angle, 
DN ：DN25, DN32, DN40, DN50
Nominal pressure：ANSI 1500, ANSI2500 or PN25MPa, PN32MPa
Connection Type：BW weld( or following your demands)
Materials：20#Forged Steel

Normal temperature≤420℃

cap form: bolt Clamp
Packing： nickel wire winded graphite packing.

valve spool type ： valve spool
Flow characteristics: similar to characteristic curve shown below:
Medium flow: high-low
Materials：Stainless Steel nitriding

Performance：

Permissible pressure difference：25M pa
Leakage：ANSI B16.104-1976IV

Power-driven actuator

DN

25

32

40

50

Nominal pressure 
PN (MPa)

ANSI1500, 2500 or PN25, 32MPa

Kv value

2.0 2.5
3.0 4.0
5.0 5.5
6.0 6.6

6.8
8.0
9.5

10
12
14
16

18
21
25

Rated stroke (mm)

20

25

No.

Name

Materials

No.

Name

Materials

No.

Name

Materials

1

Short pieces

20# forge

6

round pin

316

11

pressing sheet

20

2

valve spool jacket

9Cr18MoV nitriding

7

packing baffle ring

304

12

Stud

35CrMo

3

valve spool

9Cr18MoV nitriding

8

packing

JM397

13

hexagonal nuts

35

4

Joint pipe

20# forge

9

valve handle

2Cr13 nitriding

5

Body

20# forge

10

packing cap

304