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Classification：Relief valve
Trade names：
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| High-pressure relief valve of the high temperature |
| Type of the products: YFA48Y-16C/40I/64V/100V |
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| This valve is suitable for " C type " ≤ of working temperature 425 degrees Centigrade; " I type " ≤ is 500 degrees Centigrade; " V type " ≤ is 500 degrees Centigrade; Steam,etc. medium equipment or at pipeline, as exceeding it for protector. Connect the flange standard and press JB/T 94 series 1 , series 2. |
Main spare part material :
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NO.
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Part name
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Model C material
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Model I material
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Model V material
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1
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The valve has body
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WCB
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ZG1Cr5Mo
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ZG15Cr1Mo1V
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2
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Valve seat
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2Cr13
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1Cr18Ni9Ti
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12Cr1MoVA
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3
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Regulate and enclose
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2Cr13
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1Cr18Ni9Ti
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1Cr18Ni9Ti
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4
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Valve one
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2Cr13
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17-4PH
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17-7PH
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5
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Lead set
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2Cr13
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1Cr18Ni9Ti
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1Cr18Ni9Ti
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6
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Radiator
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ZG230-450
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ZG230-450
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ZG230-450
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7
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The valve covering
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ZG230-450
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ZG230-450
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ZG230-450
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8
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Spring
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50CrVA
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50CrVA
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50CrVA
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External dimension and size of connecting :
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Type
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Nominal
Open directly
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do
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D
|
K
|
g
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g1
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b
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f
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f1
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Z-ød
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DN'
|
D1
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K1
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g3
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g2
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b1
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f'
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f1'
|
z1-ød1
|
L
|
L1
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≈ H
|
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YFA48Y-16C
YFA48Y-16I
YFA48Y-16V
|
40
|
25
|
150
|
110
|
|
85
|
18
|
3
|
|
4-18
|
50
|
165
|
125
|
|
100
|
20
|
3
|
|
4-18
|
120
|
115
|
540
|
|
50
|
32
|
165
|
125
|
|
100
|
20
|
3
|
|
4-18
|
65
|
185
|
145
|
|
120
|
20
|
3
|
|
4-18
|
135
|
120
|
618
|
|
65
|
40
|
185
|
145
|
|
120
|
20
|
3
|
|
4-18
|
80
|
200
|
160
|
|
135
|
20
|
3
|
|
8-18
|
160
|
140
|
710
|
|
80
|
50
|
200
|
160
|
|
135
|
20
|
3
|
|
8-18
|
100
|
220
|
180
|
|
155
|
22
|
3
|
|
8-18
|
160
|
150
|
730
|
|
100
|
65
|
220
|
180
|
|
155
|
20
|
3
|
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8-18
|
150
|
285
|
240
|
|
210
|
24
|
3
|
|
8-23
|
225
|
175
|
892
|
|
150
|
100
|
285
|
240
|
|
210
|
24
|
3
|
|
8-23
|
200
|
340
|
295
|
|
265
|
26
|
3
|
|
12-23
|
240
|
235
|
1135
|
|
200
|
125
|
340
|
295
|
|
265
|
26
|
3
|
|
12-23
|
250
|
405
|
355
|
|
320
|
30
|
3
|
|
12-26
|
290
|
210
|
1135
|
|
YFA48Y-40
YFA48Y-40I
YFA48Y-40V
|
25
|
16
|
115
|
85
|
58
|
65
|
16
|
2
|
4
|
4-14
|
32
|
140
|
100
|
|
78
|
18
|
2
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|
4-18
|
110
|
95
|
429
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|
32
|
20
|
140
|
100
|
66
|
78
|
18
|
2
|
4
|
4-18
|
40
|
150
|
110
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|
85
|
18
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3
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4-18
|
115
|
100
|
421
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|
40
|
25
|
150
|
110
|
76
|
85
|
18
|
3
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4
|
4-18
|
50
|
165
|
125
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|
100
|
20
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3
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4-18
|
120
|
115
|
540
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50
|
32
|
165
|
125
|
88
|
100
|
20
|
3
|
4
|
4-18
|
65
|
185
|
145
|
|
120
|
20
|
3
|
|
4-18
|
135
|
120
|
618
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|
65
|
40
|
185
|
145
|
110
|
120
|
22
|
3
|
4
|
8-18
|
80
|
200
|
160
|
|
135
|
20
|
3
|
|
8-18
|
160
|
140
|
710
|
|
80
|
50
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
100
|
220
|
180
|
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155
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22
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3
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8-18
|
160
|
150
|
730
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|
100
|
65
|
235
|
190
|
150
|
160
|
24
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3
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4.5
|
8-23
|
150
|
285
|
240
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210
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24
|
3
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|
8-23
|
225
|
175
|
892
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|
150
|
100
|
300
|
250
|
204
|
218
|
30
|
3
|
4.5
|
8-26
|
200
|
340
|
295
|
|
265
|
26
|
3
|
|
12-23
|
240
|
235
|
1135
|
|
200
|
125
|
375
|
320
|
260
|
282
|
38
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3
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4.5
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12-30
|
250
|
405
|
355
|
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320
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30
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3
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12-26
|
290
|
310
|
1135
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YFA48Y-64
YFA48SB-64
YFA48Y-64I
YFA48SB-64I
YFA48Y-64V
YFA48SB-64V
|
25
|
16
|
140
|
100
|
58
|
78
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22
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2
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4
|
4-18
|
32
|
140
|
100
|
66
|
78
|
18
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2
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4
|
4-18
|
110
|
100
|
429
|
|
32
|
20
|
155
|
110
|
66
|
82
|
24
|
2
|
4
|
4-23
|
40
|
150
|
110
|
76
|
85
|
18
|
3
|
4
|
4-18
|
130
|
110
|
421
|
|
40
|
25
|
170
|
125
|
76
|
95
|
24
|
3
|
4
|
4-23
|
50
|
165
|
125
|
88
|
100
|
20
|
3
|
4
|
4-18
|
135
|
120
|
540
|
|
50
|
32
|
180
|
135
|
88
|
105
|
26
|
3
|
4
|
4-23
|
65
|
185
|
145
|
110
|
120
|
22
|
3
|
4
|
8-18
|
160
|
130
|
618
|
|
50
|
32
|
180
|
135
|
88
|
105
|
26
|
3
|
4
|
4-23
|
80
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
160
|
145
|
710
|
|
65
|
40
|
205
|
160
|
110
|
130
|
28
|
3
|
4
|
8-23
|
80
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
175
|
160
|
710
|
|
80
|
50
|
215
|
170
|
121
|
140
|
30
|
3
|
4
|
8-23
|
100
|
235
|
190
|
150
|
160
|
24
|
3
|
4.5
|
8-23
|
175
|
160
|
730
|
|
100
|
65
|
250
|
200
|
150
|
168
|
32
|
3
|
4.5
|
8-26
|
125
|
270
|
220
|
176
|
188
|
28
|
3
|
4.5
|
8-25
|
220
|
200
|
800
|
|
100
|
65
|
250
|
200
|
150
|
168
|
32
|
3
|
4.5
|
8-26
|
150
|
300
|
250
|
204
|
218
|
30
|
3
|
4.5
|
8-26
|
220
|
200
|
892
|
|
150
|
100
|
345
|
280
|
204
|
240
|
38
|
3
|
4.5
|
8-34
|
200
|
375
|
320
|
260
|
282
|
38
|
3
|
4.5
|
12-30
|
280
|
280
|
1135
|
|
200
|
125
|
405
|
345
|
260
|
300
|
44
|
3
|
4.5
|
12-36
|
250
|
450
|
385
|
313
|
345
|
42
|
3
|
4.5
|
12-34
|
300
|
295
|
1135
|
|
YFA48Y-100
YFA48SB-100
YFA48Y-100I
YFA48SH-100I
YFA48Y-100V
YFA48SB-100V
|
25
|
16
|
140
|
100
|
58
|
78
|
24
|
2
|
4
|
4-18
|
32
|
140
|
100
|
66
|
78
|
18
|
2
|
4
|
4-18
|
110
|
100
|
429
|
|
32
|
20
|
155
|
110
|
66
|
82
|
24
|
2
|
4
|
4-23
|
40
|
150
|
110
|
76
|
85
|
18
|
3
|
4
|
4-18
|
130
|
110
|
421
|
|
40
|
25
|
170
|
125
|
76
|
95
|
26
|
3
|
4
|
4-23
|
50
|
165
|
125
|
88
|
100
|
20
|
3
|
4
|
4-18
|
135
|
120
|
540
|
|
50
|
32
|
195
|
145
|
88
|
112
|
28
|
3
|
4
|
4-26
|
65
|
185
|
145
|
110
|
120
|
22
|
3
|
4
|
8-18
|
160
|
130
|
618
|
|
50
|
32
|
195
|
145
|
88
|
112
|
28
|
3
|
4
|
4-26
|
80
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
160
|
145
|
710
|
|
65
|
32
|
220
|
170
|
110
|
138
|
32
|
3
|
4
|
8-26
|
80
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
175
|
160
|
710
|
|
80
|
40
|
230
|
180
|
121
|
148
|
34
|
3
|
4
|
8-26
|
100
|
235
|
190
|
150
|
160
|
24
|
3
|
4.5
|
8-23
|
175
|
160
|
730
|
|
100
|
50
|
265
|
210
|
150
|
172
|
38
|
3
|
4.5
|
8-30
|
125
|
270
|
220
|
176
|
188
|
28
|
3
|
4.5
|
8-25
|
220
|
200
|
800
|
|
100
|
50
|
265
|
210
|
150
|
172
|
38
|
3
|
4.5
|
8-30
|
150
|
300
|
250
|
204
|
218
|
30
|
3
|
4.5
|
8-26
|
220
|
200
|
892
|
|
150
|
80
|
355
|
290
|
204
|
250
|
46
|
3
|
4.5
|
12-34
|
200
|
375
|
320
|
260
|
282
|
38
|
3
|
4.5
|
12-30
|
280
|
280
|
1135
|
|
200
|
125
|
430
|
360
|
260
|
312
|
54
|
3
|
4.5
|
12-36
|
250
|
450
|
385
|
313
|
345
|
42
|
3
|
4.5
|
12-34
|
300
|
295
|
1135
|
|
YFA48SH-40
|
50
|
32
|
160
|
125
|
88
|
105
|
38
|
3
|
4
|
4-18
|
80
|
195
|
160
|
/
|
135
|
20
|
3
|
/
|
8-18
|
124
|
137
|
525
|
|
YA48TH-100
|
50
|
32
|
195
|
145
|
88
|
112
|
50
|
3
|
4
|
4-26
|
80
|
200
|
160
|
121
|
135
|
22
|
3
|
4.5
|
8-18
|
160
|
145
|
580
|
|
YFA48SB-160
|
80
|
40
|
260
|
205
|
121
|
168
|
65
|
15
|
4
|
8-30
|
150
|
300
|
250
|
204
|
218
|
30
|
3
|
4.5
|
8-25
|
215
|
210
|
1175
|
Note: YA48TH-100 DN50 does not take the radiator . |
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