Wenzhou Starry Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of full bore safety valve in China. We are committed to providing high quality customized valves with low price. If you're going to buy bulk durable full bore safety valve, welcome to get quotation from our factory.
Features
Bellows balanced compensation structure
Built-in stainless steel bellows assembly, eliminates the influence of variable outlet back-pressure on set pressure. Protect spring and internal parts against corrosive medium, prevent medium leakage to atmosphere.
01
Closed-bonnet full-lift spring-loaded design with wrench
Full-lift structure, disc lift ≥1/4 of nozzle diameter, large discharge capacity. Equipped with lifting wrench for regular manual inspection.
02
Hard-alloy welded sealing surface
Seat & disc overlay hard alloy, anti-erosion, good sealing performance, long service life.
03
API standard design
Designed per API-526, tested per API-527; flange ASME B16.5; pressure class Class150-600.
04
Working parameters
Body WCB carbon steel; Working temperature ≤300℃; for gas, steam, liquid media.
05
Limitation：Not suitable for medium containing solid particles, which may damage bellows.
Typical Application Equipment
- Petrochemical & refining pressure vessels and process pipelines
- Boilers, heat exchangers and high-pressure separation equipment
- Toxic, harmful and flammable-medium pressure systems
- Working conditions with fluctuating outlet back-pressure
- Chemical fertilizer, power plant pressure equipment
Full bore safety valve applies for gas, steam and liquid systems with temperature ≤300℃. The built-in bellows counteracts variable back-pressure. When system pressure exceeds set value, the valve opens fully to discharge medium. When pressure drops back to allowable value, full bore safety valve closes automatically to protect equipment and pipelines. Suitable for toxic, corrosive media and conditions with fluctuating back-pressure.
Main Property and Specifiecation
|
Normal Pressure |
PN |
150 |
300 |
600 |
900 |
|
Body strangth |
Ps(MPa) |
3 |
7.5 |
15 |
22.5 |
|
Set pressure |
Pk(MPa) |
0.1-2 |
1.6-5 |
3.2-10 |
8-15 |
|
Seal pressure |
Pm(MPa) |
90%Pk |
|||
|
Reseation pressure |
Ph(MPa) |
≥90%Pk |
|||
|
Relieving pressure |
Pp(MPa) |
≤1.1Pk |
|||
|
Llift |
H(mm) |
≥1/4d0 |
|||
|
Appropriate temperature |
c |
≤300℃ |
|||
|
P,R |
≤200℃ |
||||
|
Appropriate medium |
c |
Gas,Liquid |
|||
|
P,R |
Nitric Acid,Acetic Acid,Gas,Liquid |
||||
Code Of Throat Diameter
|
Code |
Diameter |
Code |
Diameter |
|
D |
10 |
L |
50 |
|
E |
13 |
M |
55 |
|
F |
16 |
N |
60 |
|
G |
20.5 |
P |
72 |
|
H |
26 |
Q |
96 |
|
J |
33 |
R |
115 |
|
K |
40 |
T |
148 |
Full Bore Safety Valve Main Dimension
|
WA44C150,WA44C150P,WA44C150R |
|||||||||||||||||
|
Nominal |
Dimension(mm) |
||||||||||||||||
|
do |
D |
D1 |
D2 |
b |
t |
Z-φd |
DN' |
D' |
D1' |
D2' |
b' |
t' |
Z-φd |
L |
L1 |
H |
|
|
1/2"×3/4 |
D |
89 |
60.5 |
35 |
12 |
5 |
4-15 |
20 |
98 |
70 |
43 |
14 |
1.6 |
4-15 |
90 |
90 |
340 |
|
3/4"×1" |
D |
98 |
70 |
43 |
14 |
5 |
4-15 |
25 |
108 |
79.5 |
51 |
15 |
1.6 |
4-15 |
96 |
92 |
350 |
|
1"×11/2" |
D |
108 |
79.5 |
51 |
15 |
5 |
4-15 |
40 |
127 |
98.5 |
73 |
18 |
1.6 |
4-15 |
115 |
105 |
360 |
|
1"×2" |
D |
108 |
79.5 |
51 |
15 |
5 |
4-15 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
115 |
105 |
360 |
|
11/2"×2" |
G |
127 |
98.5 |
73 |
18 |
5 |
4-15 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
121 |
124 |
380 |
|
11/2×21/2" |
G |
127 |
98.5 |
73 |
18 |
5 |
4-15 |
65 |
178 |
139.5 |
105 |
20 |
1.6 |
4-19 |
121 |
124 |
390 |
|
11/2×3" |
G |
127 |
98.5 |
73 |
18 |
5 |
4-15 |
80 |
190 |
152.5 |
127 |
22 |
1.6 |
4-19 |
124 |
130 |
390 |
|
2"×21/2" |
H |
152 |
120.5 |
92 |
18 |
5 |
4-19 |
65 |
178 |
139.5 |
105 |
20 |
1.6 |
4-19 |
124 |
130 |
410 |
|
2"×3" |
J |
152 |
120.5 |
92 |
18 |
5 |
4-19 |
80 |
190 |
152.5 |
127 |
22 |
1.6 |
4-19 |
124 |
130 |
410 |
|
21/2"×4" |
J |
178 |
139.5 |
105 |
20 |
5 |
4-19 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
143 |
137 |
410 |
|
3"×4" |
L |
190 |
152.5 |
127 |
22 |
5 |
4-19 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
162 |
156 |
480 |
|
4"×6" |
N |
229 |
190.5 |
157 |
24 |
10 |
8-19 |
150 |
279 |
241.5 |
216 |
26 |
1.6 |
8-22 |
229 |
181 |
560 |
|
6"×8" |
P |
279 |
241.5 |
216 |
26 |
10 |
8-22 |
200 |
343 |
298.5 |
270 |
29 |
1.6 |
8-22 |
241 |
240 |
790 |
|
8"×10" |
R |
343 |
298.5 |
270 |
29 |
10 |
8-22 |
250 |
406 |
362 |
324 |
31 |
1.6 |
12-25 |
279 |
276 |
840 |
|
12"×14" |
T |
483 |
432 |
381 |
32 |
10 |
12-25 |
350 |
533 |
476 |
413 |
35 |
1.6 |
12-29 |
370 |
360 |
920 |
|
WA44C300,WA44C300P,WA44C300R |
|||||||||||||||||
|
Nominal |
Dimension(mm) |
||||||||||||||||
|
do |
D |
D1 |
D2 |
b |
t |
Z-φd |
DN' |
D' |
D1' |
D2' |
b' |
t' |
Z-φd |
L |
L1 |
H |
|
|
1/2"×3/4 |
D |
95 |
66.5 |
35 |
15 |
5 |
4-15 |
20 |
98 |
70 |
43 |
14 |
1.6 |
4-15 |
90 |
90 |
340 |
|
3/4"×1" |
D |
117 |
82.5 |
43 |
16 |
5 |
4-19 |
25 |
108 |
79.5 |
51 |
15 |
1.6 |
4-15 |
96 |
92 |
350 |
|
1"×11/2" |
D |
124 |
90 |
51 |
18 |
5 |
4-19 |
40 |
127 |
98.5 |
73 |
18 |
1.6 |
4-15 |
115 |
105 |
360 |
|
1"×2" |
D |
124 |
90 |
51 |
18 |
5 |
4-19 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
115 |
105 |
360 |
|
11/2"×2" |
F |
156 |
114.5 |
73 |
20 |
5 |
4-22 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
121 |
124 |
38 |
|
11/2×21/2" |
F |
156 |
114.5 |
73 |
20 |
5 |
4-22 |
65 |
178 |
139.5 |
105 |
20 |
1.6 |
4-19 |
121 |
124 |
390 |
|
11/2×3" |
F |
156 |
114.5 |
73 |
20 |
5 |
4-22 |
80 |
190 |
152.5 |
127 |
22 |
1.6 |
4-19 |
124 |
130 |
390 |
|
2"×21/2" |
H |
165 |
127 |
92 |
22 |
5 |
8-19 |
65 |
178 |
139.5 |
105 |
20 |
1.6 |
4-19 |
124 |
130 |
410 |
|
2"×3" |
H |
165 |
127 |
92 |
22 |
5 |
8-19 |
80 |
190 |
152.5 |
127 |
22 |
1.6 |
4-19 |
124 |
130 |
410 |
|
21/2"×4" |
J |
190 |
149.5 |
105 |
24 |
5 |
8-22 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
143 |
137 |
420 |
|
3"×4" |
L |
210 |
168 |
127 |
28 |
5 |
8-22 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
162 |
156 |
480 |
|
4"×6" |
N |
254 |
200 |
157 |
32 |
10 |
8-22 |
150 |
279 |
241.5 |
216 |
26 |
1.6 |
8-22 |
210 |
197 |
560 |
|
6"×8" |
P |
318 |
270 |
216 |
38 |
10 |
12-22 |
200 |
343 |
298.5 |
270 |
29 |
1.6 |
8-22 |
241 |
240 |
790 |
|
8"×10" |
R |
381 |
330 |
270 |
42 |
10 |
12-25 |
250 |
406 |
362 |
324 |
31 |
1.6 |
12-25 |
279 |
276 |
840 |
|
WA44C600,WA44C600P,WA44C600R |
|||||||||||||||||
|
Nominal |
Dimension(mm) |
||||||||||||||||
|
d0 |
D |
D1 |
D2 |
b |
t |
Z-φd |
DN' |
D' |
D1 |
D2' |
b' |
t' |
Z-φd |
L |
L1 |
H |
|
|
3/4"×1" |
D |
118 |
82.5 |
43 |
16 |
7 |
4-19 |
25 |
108 |
79.5 |
51 |
15 |
1.6 |
4-15 |
96 |
92 |
360 |
|
1"×2" |
D |
124 |
89 |
51 |
19 |
7 |
4-19 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
115 |
105 |
370 |
|
11/2"×2" |
F |
156 |
114.5 |
73 |
22 |
7 |
4-22 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
152 |
124 |
370 |
|
11/2×21/2" |
F |
156 |
114.5 |
73 |
22 |
7 |
4-22 |
65 |
178 |
139.5 |
105 |
20 |
1.6 |
4-19 |
152 |
124 |
390 |
|
11/2×3" |
F |
156 |
114.5 |
73 |
22 |
7 |
4-22 |
80 |
190 |
152.5 |
127 |
22 |
1.6 |
4-19 |
152 |
124 |
400 |
|
2"×21/2" |
H |
165 |
127 |
92 |
26 |
7 |
8-19 |
65 |
178 |
139.5 |
105 |
20 |
1.6 |
4-19 |
162 |
154 |
400 |
|
2"×3" |
H |
165 |
127 |
92 |
26 |
7 |
8-19 |
80 |
190 |
152.5 |
127 |
22 |
1.6 |
4-19 |
162 |
154 |
420 |
|
21/2"×4" |
K |
190 |
149 |
100 |
29 |
7 |
8-22 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
143 |
165 |
420 |
|
3"×4" |
K |
210 |
168 |
127 |
32 |
10 |
8-22 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
162 |
155 |
480 |
|
4"×6" |
N |
273 |
216 |
157 |
38 |
10 |
8-25 |
150 |
279 |
241.5 |
216 |
26 |
1.6 |
8-22 |
210 |
200 |
560 |
|
6"×8" |
P |
356 |
292 |
216 |
46 |
10 |
12-29 |
200 |
343 |
298.5 |
270 |
29 |
1.6 |
8-22 |
241 |
240 |
790 |
|
WA44C900,WA44C900P,WA44C900R |
|||||||||||||||||
|
Nominal |
Dimension(mm) |
||||||||||||||||
|
do |
D |
D1 |
D2 |
b |
t |
Z-φd |
DN' |
D |
D1' |
D2 |
b' |
t' |
Z-φd |
L |
L1 |
H |
|
|
11/2"×2" |
F |
178 |
123.8 |
73 |
32 |
10 |
4-29 |
50 |
152 |
120.5 |
92 |
18 |
1.6 |
4-19 |
165 |
124 |
380 |
|
2"×3" |
H |
216 |
165.1 |
92 |
38 |
10 |
8-26 |
80 |
190 |
152.5 |
129 |
22 |
1.6 |
4-19 |
162 |
154 |
42 |
|
3"×4" |
J |
241 |
190.5 |
127 |
38 |
10 |
8-25 |
100 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
181 |
184 |
480 |
|
4"×6" |
K |
292 |
234.9 |
157 |
44 |
12 |
8-32 |
150 |
279 |
241.5 |
216 |
26 |
1.6 |
8-22 |
222 |
197 |
560 |
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