Wenzhou Starry Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of high temperature relief valve in China. We are committed to providing high quality customized valves with low price. If you're going to buy bulk durable high temperature relief valve, welcome to get quotation from our factory.
Features
1.Equipped with heat radiator structure, effectively isolate high-temperature medium from spring components, protecting spring from high-temperature damage for stable performance under high-temperature service.
2.Full-lift structure provides large discharge capacity, fast opening and quick pressure relief when overpressure occurs.
3.Sealing surface hard-faced with cobalt-based alloy, excellent wear-resistance, erosion-resistance and high-temperature resistance, low leakage rate and long service life.
4.Adjustable nozzle ring, convenient to modify blow-down pressure to satisfy different process requirements.
5.Optional lifting lever for regular on-site functional inspection.
6.Strictly manufactured per API standards, stable reseating performance after pressure drops back to normal.
Applications
High temperature relief valve serves as over-pressure protection for high-temperature equipment and pipelines. It opens automatically to release excess medium under over-pressure condition and closes automatically as pressure returns to safe level, preventing equipment and piping from over-pressure damage. Widely used in power-plant boilers, superheated steam headers, thermal-oil systems, heat exchangers, reactors, petrochemical process units, high-temperature gas pipelines and high-temperature pressure vessels. Suitable media: superheated steam, thermal oil, high-temperature hot gas, high-temperature process fluid. Ideal for international EPC projects following API & ASME standards.
High temperature relief valve are used for the equipment and pipeline of the steam, etc. medium what the working temperature with C Type are less than 425°C and l fype are less than 500'C and V Type are less them 550°C. Take for extra pressure protection devices.
Materials For Main Parts
|
NO. |
Name of part |
C Materials |
I Materials |
V Materials |
|
1 |
Body |
WCB |
WC6 |
WC9 |
|
2 |
Seat |
20Cr13 |
304 |
12Cr1MoVA |
|
3 |
Adjusting ring |
20Cr13 |
304 |
304 |
|
4 |
Disc |
20Cr13 |
17-4PH |
17-7PH |
|
5 |
Guide sleeve |
20Cr13 |
304 |
304 |
|
6 |
Radiator |
ZG230-450 |
ZG230-450 |
ZG230-450 |
|
7 |
Bonnet |
ZG230-450 |
ZG230-450 |
ZG230-450 |
|
8 |
Spring |
50CrVA |
50CrVA |
50CrVA |
High Temperature Relief Valve Dimensions(mm)
|
Type |
DN |
do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-φd |
DN |
D1 |
K1 |
g3 |
g2 |
b1 |
f |
f1' |
Z-φd1 |
L |
LI |
~H |
|
A48Y-16C |
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 |
|
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 |
113 |
|
|
200 |
125 |
340 |
295 |
|
265 |
26 |
3 |
|
12-23 |
250 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
290 |
210 |
113 |
|
|
A48Y-40 |
25 |
16 |
115 |
85 |
58 |
65 |
16 |
2 |
4 |
4-14 |
32 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
110 |
95 |
429 |
|
32 |
20 |
140 |
100 |
66 |
78 |
18 |
2 |
4 |
4-18 |
40 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
115 |
100 |
42 |
|
|
40 |
25 |
150 |
110 |
76 |
85 |
18 |
3 |
4 |
4-18 |
50 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
120 |
115 |
540 |
|
|
50 |
32 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
4-18 |
65 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
135 |
120 |
618 |
|
|
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 |
|
155 |
22 |
3 |
|
8-18 |
160 |
150 |
730 |
|
|
100 |
65 |
235 |
190 |
150 |
160 |
24 |
3 |
4.5 |
8-23 |
150 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
225 |
175 |
892 |
|
|
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 |
3 |
4.5 |
12-30 |
250 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
290 |
310 |
113 |
|
|
A48Y-64 |
25 |
16 |
140 |
100 |
58 |
78 |
22 |
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 |
42 |
|
|
40 |
25 |
170 |
125 |
76 |
95 |
24 |
3 |
4 |
4-23 |
50 |
165 |
125 |
88 |
00 |
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 |
818 |
160 |
130 |
68 |
|
|
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 |
35 |
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 |
24 |
218 |
30 |
3 |
4.5 |
8-26 |
220 |
200 |
82 |
|
|
150 |
100 |
345 |
280 |
204 |
240 |
38 |
3 |
4.5 |
8-34 |
200 |
375 |
320 |
260 |
22 |
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 |
|
|
A48Y-100 |
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 |
1 |
3 |
4 |
4-18 |
130 |
110 |
42 |
|
|
40 |
25 |
170 |
125 |
76 |
95 |
26 |
3 |
4 |
4-23 |
50 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
418 |
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 |
12 |
135 |
22 |
3 |
4 |
8-18 |
160 |
145 |
710 |
|
|
65 |
40 |
220 |
170 |
110 |
138 |
32 |
3 |
4 |
8-26 |
80 |
200 |
160 |
121 |
135 |
22 |
3 |
4 |
8-8 |
175 |
160 |
70 |
|
|
80 |
50 |
230 |
180 |
121 |
148 |
34 |
3 |
4 |
8-26 |
100 |
235 |
190 |
150 |
60 |
24 |
3 |
4.5 |
8-23 |
175 |
160 |
730 |
|
|
100 |
65 |
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 |
65 |
265 |
210 |
150 |
172 |
38 |
3 |
4.5 |
8-30 |
150 |
300 |
250 |
204 |
28 |
30 |
3 |
4.5 |
8-26 |
220 |
200 |
892 |
|
|
150 |
100 |
355 |
290 |
204 |
250 |
46 |
3 |
45 |
2-34 |
200 |
375 |
320 |
260 |
282 |
38 |
3 |
4.5 |
12-30 |
280 |
280 |
113 |
|
|
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 |
113 |
|
|
A48SH-40 |
50 |
32 |
160 |
125 |
88 |
105 |
38 |
3 |
4 |
4-18 |
80 |
195 |
160 |
/ |
135 |
20 |
3 |
/ |
8-18 |
124 |
137 |
525 |
|
A48SH-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 |
|
A48SB-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 |
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