Tanhov Industrial Co., Ltd.

Tanhov Industrial Co., Ltd.

A48C Open Bonnet Plain Lever Type Safety Valve

Tel:+0086-577-21828858 Fax:+0086-577-21828855
+Add:Sanqiao Industrial Zone,Oubei,Wenzhou,Zhejiang,China
A48C Open Bonnet Plain Lever Type Safety Valve  Series:Steam Safety Valve

A48C Open Bonnet Plain Lever Tpye Safety Valve

 

Safety Valves/pressure safety valves, angle type

Full lift safety valve
Standard safety valve for boiler, open bonnet,
metal to metal seated, with plain type lifting device,
Inlet: Flanged connection acc. to ANSI B16.5
Outlet: Flanged connection acc. to ANSI B16.5

 

Applications
Provided as safety device for protection against excessive pressure in pressure vessels.
Approved for gases, vapours and fluids
Working temperatures: Lower than 300°C

 

Standards Compliance
Design and Manufacture: API RP 520
Face to Face(end to end): API 526
Test and Inspection: API 527

 

 

Main property specifiecation

 

Mormal Pressure PN 150 300 600
Body strength Ps(Mpa) 3.0 7.5 15
Set pressure Pk(Mpa) 0.1-2 1.6-5 3.2-10
Seal pressure Pm(Mpa) 90%Pk
Reseation pressure Ph(Mpa) ≥90%Pk
Relieving Pressure Pp(Mpa) ≤1.03Pk
Lift height H(mm) ≥1/4 d0
Appropriate  temp. ≤300℃
Appropriate Medium Fluids, Steam

 

 

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

 

 

Materials for main parts

NO Name of part Materials A48Y-C Materials A48Y-P Materials A48Y-R
1 Body WCB 304 316
2 Nozzle 2Cr13/ 304 304 316
3 Adjusting Ring 2Cr13/ 304 304 316
4 Disc 2Cr13/ 304 304 316
5 Guide sleeve 2Cr13/ 304 304 316
6 Bonnet ZG230-450 ZG230-450 ZG230-450
7 Spring 50CrVA 50CrVA coated teflon 50CrVA coated teflon
8 Stem 2Cr13 304 316
9 Adjusting bolt 45 2Cr13 2Cr13
10 Cap ZG200-400 ZG200-400 ZG200-400
Sealing surface of material "Y" depositing stellite

 

 

Essential:
Valves are delivered at a set pressure, therefore when ordering
please confirm set pressure, medium and temperature

 

TS
Safety accessory and Safety protection device Manufacture License of Special Equipment, People's republic of China

 

Main Dimensions

A48C150
Nominal Diameter (in) Dimensions(mm) Inlet flange  150Lb
d0 D D1 D2 b t Z-Φd DN' D' D1' D2' b' t Z'-Φd' L L1 H
1/2" x 3/4" D 89 60.5 35 12 5 4-15 20 98 70 43 14 1.6 4-15 90 90 290
3/4" x 1" D 98 70 43 14 5 4-15 25 108 79.5 51 15 1.6 4-15 96 92 310
1" x 11/2" D 108 79.5 51 15 5 4-15 40 127 98.5 73 18 1.6 4-15 115 105 320
1" x 2" D 108 79.5 51 15 5 4-15 50 152 120.5 92 18 1.6 4-19 115 105 320
11/2" x 2" G 127 98.5 73 18 5 4-15 50 152 120.5 92 18 1.6 4-19 121 124 350
11/2" x 21/2" G 127 98.5 73 18 5 4-15 65 178 139.5 105 20 1.6 4-19 121 124 360
11/2" x3" G 127 98.5 73 18 5 4-15 80 190 152.5 127 22 1.6 4-19 124 130 360
2" x21/2" H 152 120.5 92 18 5 4-19 65 178 139.5 105 20 1.6 4-19 124 130 380
2" x 3" J 152 120.5 92 18 5 4-19 80 190 152.5 127 22 1.6 4-19 124 130 380
21/2" x 4" J 178 139.5 105 20 5 4-19 100 229 190.5 157 24 1.6 8-19 143 137 380
3" x 4" L 190 152.5 127 22 5 4-19 100 229 190.5 157 24 1.6 8-19 162 156 480
4" x 6" N 229 190.5 157 24 10 8-19 150 279 241.5 216 26 1.6 8-22 210 197 540
6" x 8" P 279 241.5 216 26 10 8-22 200 343 298.5 270 29 1.6 8-22 241 240 760
8" x10" R 343 298.5 270 29 10 8-22 250 406 362 324 31 1.6 12-25 279 276 830
12" x14" T 483 432 381 32 10 12-25 350 533 476 413 35 1.6 12-29 370 360 890
Remark: 150Lb for outlet flange

 

 

 

A48C300
Nominal Diameter (in) Dimensions(mm) Inlet flange  300Lb
d0 D D1 D2 b t Z-Φd DN' D' D1' D2' b' t Z'-Φd' L L1 H
1/2" x 3/4" D 95 66.5 35 15 5 4-15 20 98 70 43 14 1.6 4-15 90 90 290
3/4" x 1" D 117 82.5 43 16 5 4-19 25 108 79.5 51 15 1.6 4-15 96 92 310
1" x 11/2" D 124 89 51 18 5 4-19 40 127 98.5 73 18 1.6 4-15 115 105 320
1" x 2" D 124 89 51 18 5 4-19 50 152 120.5 92 18 1.6 4-19 115 105 320
11/2" x 2" F 156 114.5 73 20 5 4-22 50 152 120.5 92 18 1.6 4-19 121 124 350
11/2" x 21/2" F 156 114.5 73 20 5 4-22 65 178 139.5 105 20 1.6 4-19 121 124 360
11/2" x3" F 156 114.5 73 20 5 4-22 80 190 152.5 127 22 1.6 4-19 124 130 360
2" x21/2" H 165 127 92 22 5 8-19 65 178 139.5 105 20 1.6 4-19 124 130 380
2" x 3" H 165 127 92 22 5 8-19 80 190 152.5 127 22 1.6 4-19 124 130 380
21/2" x 4" J 190 149 105 24 5 8-22 100 229 190.5 157 24 1.6 8-19 143 137 380
3" x 4" L 210 168.5 127 28 5 8-22 100 229 190.5 157 24 1.6 8-19 162 156 480
4" x 6" N 254 200 157 32 10 8-22 150 279 241.5 216 26 1.6 8-22 210 197 540
6" x 8" P 318 270 216 38 10 12-22 200 343 298.5 270 29 1.6 8-22 241 240 760
8" x10" R 381 330 270 42 10 12-25 250 406 362 324 31 1.6 12-25 279 276 830
Remark: 150Lb for outlet flange

 

 

 

A48C600
Nominal Diameter (in) Dimensions(mm)  Inlet flange 600Lb
d0 D D1 D2 b t Z-Φd DN' D' D1' D2' b' t Z'-Φd' L L1 H
3/4" x 1" D 118 82.5 43 16 7 4-19 25 108 79.5 51 15 1.6 4-15 96 92 230
1" x 2" D 124 89 51 19 7 4-19 50 152 120.5 92 18 1.6 4-19 115 105 320
11/2" x 2" F 156 114.5 73 22 7 4-22 50 152 120.5 92 18 1.6 4-19 152 124 360
11/2" x 21/2" F 156 114.5 73 22 7 4-22 65 178 139.5 105 20 1.6 4-19 152 124 380
11/2" x3" F 156 114.5 73 22 7 4-22 80 190 152.5 127 22 1.6 4-19 152 124 380
2" x21/2" H 165 127 92 26 7 8-19 65 178 139.5 105 20 1.6 4-19 162 154 410
2" x 3" H 165 127 92 26 7 8-19 80 190 152.5 127 22 1.6 4-19 162 154 410
21/2" x 4" K 190 149 100 29 7 8-22 100 229 190.5 157 24 1.6 8-19 143 165 410
3" x 4" K 210 168 127 32 10 8-22 100 229 190.5 157 24 1.6 8-19 162 155 480
4" x 6" N 273 216 157 38 10 8-25 150 279 241.5 216 26 1.6 8-22 210 200 540
6" x 8" P 356 292 216 46 10 12-29 200 343 298.5 270 29 1.6 8-22 241 240 760
Remark: 150Lb for outlet flange

 

 

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