Part name
材 料
LJH77X-10C、25 16、40
LJH77H-16C、40 25、64
IJH77Y25I 40I164I
LJH77W10C、25 16C、40
LJH77W-10P、25P 16P、40P
Valve body, butterfly plate
cast steel WCB
Cr Mo steel
lCrl8Ni9Ti
The stem
2Crl3
lCrl8N19Tl
20r13
Body seal pair
-
Surfacing alloy steel
Surfacing cemented carbide
Closing spring
lCrl8N19Ti
Heat-resisting alloy
1Crl8Ni9Ti
Model
Nominal pressure
Test pressure PS(MPa)
working temperature (℃)
Applicable medium
PN(MPa)
housing
Seal up
1Jl77X LJH77H LJH77Y LJll77W
1.0
1.5
1.1
Soft seal: 100~225 Hard seal 200~550
Water,
Oil,
Gas,
Nitric acid, etc.
1.6
2.4
1.76
2.5
3.75
2.75
6.0
4.4
6.4
9.6
7.0
Nominal diameter DN(mm)
L
D2
D3
Nominal diameter DN(ram)
LJH77X
LJH77H LJH77Y LJH77W
50
43
100
46
400
140
485
376
390
80
64
1 05
7l
d50
152
545
427
155
91 5
94
500
608
479
490
125
70
185
115
118
600
178
718
579
588
150
76
210
14l
145
700
229
800
675
686
200
89
265
191
241
905
774
784
250
114
320
230
900
1005
875
300
375
290
1000
lll5
974
350
127
435
340
1200
360
1325
1165
Be sure to write clearly consulted or purchase products detailed parameters and quantity.