Product Details

Location:Home >> Safety valve

A42Y spring Kai closed valve

hit:
A42Y spring Kai closed valve

 

Kai closed valve spring A42Y-C is suitable for the equipment and pipeline operating temperature ≤300 ℃ air, liquefied petroleum gas, liquid and other media. A42Y-P-type and A42Y-R is suitable for operating temperatures ≤200 ℃ corrosive media equipment and piping, as overpressure protection device. Flange standard according to JB / T ...... -94 Series 1. ≥6.4MPa by JB / T ...... -94 Series 2.
Series Model

A42Y-16C
A42Y-16P
A42Y-16R
KA42Y-16
DA42Y-16C/P
A42Y-25
A42Y-25P
A42Y-25R
KA42Y-25(P)
DA42Y-25P
A42Y-40
A42Y-40P
A42Y-40R
KA42Y-40
DA42Y-40P
A42Y-64
A42Y-64P
A42Y-64R
KA42Y-64
DA42Y-64P
A42Y-100
A42Y-100
PA42Y-100R
KA42Y-100
DA42Y-100P
 
 

Main parts and materials

NO.
Part Name
A42Y-C/KA42Y-CMaterials
A42Y-P/KA42Y-PMaterials
A42Y-RMaterials
DA42Y-PMaterials
1
Seat
2Cr13/1Cr18Ni9Ti
ZG1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti
ZG1Cr18Ni9Ti
2
Body
WCB
ZG1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti
LCB/ZG1Cr18Ni9Ti
3
Adjusting ring
2Cr13/1Cr18Ni9Ti
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti
1Cr18Ni9Ti
4
Recoil plate
2Cr13/1Cr18Ni9Ti
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti
1Cr18Ni9Ti
5
Valve
2Cr13/1Cr18Ni9Ti
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti
1Cr18Ni9Ti
6
Guide sleeve
2Cr13/1Cr18Ni9Ti
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti
1Cr18Ni9Ti
7
Bonnet
ZG230-450
ZG230-450
ZG230-450
ZG1Cr18Ni9Ti
8
Spring
50CrVA
50CrVAFluorine plastic-coated
50CrVAFluorine plastic-coated
50CrVA
9
Stem
2Cr13
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
1Cr18Ni9Ti
10
Adjustment screw
45
2Cr13
2Cr13
2Cr13
11
Bonnet
ZG200-400
ZG200-400
ZG200-400
ZG230-450
 
Sealing surface material
Co-based alloy surfacing

The main dimensions

Model
DN
do
D
K
g
g1
b
f
f1
Z-ød
DN'
D1
K1
g3
g2
b1
f'
f1'
Z1-ød1
L
L1
≈H
A42Y-16C 
A42Y-16P
A42Y-16R
KA42Y-16C
DA42Y-16C(P)
20
15
105
75
 
55
16
2
 
4-14
25
115
85
 
65
16
2
 
4-14
110
95
378
25
16
115
85
 
65
16
2
 
4-14
32
140
100
 
78
18
2
 
4-18
110
95
378
32
20
140
100
 
78
18
2
 
4-18
40
150
110
 
85
18
3
 
4-18
115
100
378
40
25
150
110
 
85
18
3
 
4-18
50
165
125
 
100
20
3
 
4-18
120
110
406
50
32
165
125
 
100
20
3
 
4-18
65
185
145
 
120
20
3
 
4-18
135
120
450
65
40
185
145
 
120
20
3
 
4-18
80
200
160
 
135
20
3
 
8-18
160
140
520
80
50
200
160
 
135
20
3
 
8-18
100
220
180
 
155
22
3
 
8-18
170
135
525
100
65
220
180
 
155
22
3
 
8-18
125
250
210
 
185
22
3
 
8-18
195
175
690
125
80
250
210
 
185
22
3
 
8-18
150
285
240
 
210
24
3
 
8-23
210
190
780
150
100
285
240
 
210
24
3
 
8-23
175
310
270
 
240
26
3
 
8-23
255
230
838
200
125
340
295
 
265
26
3
 
12-23
250
405
355
 
320
30
3
 
12-26
300
260
992
250
150
405
355
 
320
30
3
 
12-26
300
460
410
 
375
30
4
 
12-26
350
320
1266
300
220
460
410
 
375
30
4
 
12-26
400
580
525
 
485
36
4
 
16-30
370
350
1283
350
250
520
470
 
435
34
4
 
16-26
500
715
650
 
608
44
4
 
20-34
500
450
1520
400
280
580
525
 
485
36
4
 
16-30
500
715
650
 
608
44
4
 
20-34
500
450
1530

The last:The next:[Safety valve ]Come back