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Type A44C - Safety Valve

 

Safety Valves, angle type

 

Full lift safety valve

Standard safety valve for fluids

Metal to metal seated, with lifting device,

Inlet: Flanged connection acc. to ANSI B16.5

Outlet: Flanged connection acc. to ANSI B16.5

 

Closed bonnet

 

Applications:

Provided as safety device for protection against excessive pressure in pressure vessels.

Approved for gases, vapours and fluids.

Working temperatures:

-60°C up to +200°C for stainless steel material

-29°C up to 300°C for cast steel material

 

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 150 300 600 900 150
Body strength Ps(Mpa) 3.0 7.5 15 22.5 38
Set pressure Pk(Mpa) 0.1-2 1.6-5 3.2-10 8-25 10-25
Seal pressure Pm(Mpa) 90%Pk
Reseation pressure Ph(Mpa) ≥90%Pk
Relieving Pressure Pp(Mpa) ≤1.1Pk
Lift height H(mm) ≥1/4 d0
Appropriate                 temp. C (WCB)                                                      P, R (SS304, SS316) ≤300℃                                                          ≤200℃
Appropriate       Medium C (WCB)                                                      P, R (SS304, SS316) Gsa, Liquid                                           Corrosive medium

 

Code of throat diameter

Code Diameter Code Diameter
D 10 L 20
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

 

Main Dimensions

 

A44C150
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 90 260
3/4" x 1" D 98 70 43 14 5 4-15 25 108 79.5 51 15 1.6 4-15 96 92 260
1" x 11/2" D 108 79.5 51 15 5 4-15 40 127 98.5 73 18 1.6 4-15 115 105 280
1" x 2" D 108 79.5 51 15 5 4-15 50 152 120.5 92 18 1.6 4-19 115 105 280
11/2" x 2" G 127 98.5 73 18 5 4-15 50 152 120.5 92 18 1.6 4-19 121 124 310
11/2" x 21/2" G 127 98.5 73 18 5 4-15 65 178 139.5 105 20 1.6 4-19 121 124 310
11/2" x3" G 127 98.5 73 18 5 4-15 80 190 152.5 127 22 1.6 4-19 124 130 310
2" x21/2" H 152 120.5 92 18 5 4-19 65 178 139.5 105 20 1.6 4-19 124 130 350
2" x 3" J 152 120.5 92 18 5 4-19 80 190 152.5 127 22 1.6 4-19 124 130 350
21/2" x 4" J 178 139.5 105 20 5 4-19 100 229 190.5 157 24 1.6 8-19 143 137 430
3" x 4" L 190 152.5 127 22 5 4-19 100 229 190.5 157 24 1.6 8-19 162 156 490
4" x 6" N 229 190.5 157 24 10 8-19 150 279 241.5 216 26 1.6 8-22 210 197 610
6" x 8" P 279 241.5 216 26 10 8-22 200 343 298.5 270 29 1.6 8-22 241 240 840
8" x10" R 343 298.5 270 29 10 8-22 250 406 362 324 31 1.6 12-25 279 276 990
12" x14" T 483 432 381 32 10 12-25 350 533 476 413 35 1.6 12-29 370 360 1040

Remark: 150Lb for outlet flange

 

A44C300,  A44C300R
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 90 260
3/4" x 1" D 117 82.5 43 16 5 4-19 25 108 79.5 51 15 1.6 4-15 96 92 260
1" x 11/2" D 124 89 51 18 5 4-19 40 127 98.5 73 18 1.6 4-15 115 105 280
1" x 2" D 124 89 51 18 5 4-19 50 152 120.5 92 18 1.6 4-19 115 105 295
11/2" x 2" F 156 114.5 73 20 5 4-22 50 152 120.5 92 18 1.6 4-19 121 124 310
11/2" x 21/2" F 156 114.5 73 20 5 4-22 65 178 139.5 105 20 1.6 4-19 121 124 310
11/2" x3" F 156 114.5 73 20 5 4-22 80 190 152.5 127 22 1.6 4-19 124 130 310
2" x21/2" H 165 127 92 22 5 8-19 65 178 139.5 105 20 1.6 4-19 124 130 350
2" x 3" H 165 127 92 22 5 8-19 80 190 152.5 127 22 1.6 4-19 124 130 350
21/2" x 4" J 190 149 105 24 5 8-22 100 229 190.5 157 24 1.6 8-19 143 137 430
3" x 4" L 210 168.5 127 28 5 8-22 100 229 190.5 157 24 1.6 8-19 162 156 490
4" x 6" N 254 200 157 32 10 8-22 150 279 241.5 216 26 1.6 8-22 210 197 610
6" x 8" P 318 270 216 38 10 12-22 200 343 298.5 270 29 1.6 8-22 241 240 840
8" x10" R 381 330 270 42 10 12-25 250 406 362 324 31 1.6 12-25 279 276 990
10" x12" T 445 387.5 324 46 10 16-28 350 533 476 413 35 1.6 12-28 350 330 1040

Remark: 150Lb for outlet flange

 

A44C600
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 92 280
1" x 2" D 124 89 51 19 7 4-19 50 152 120.5 92 18 1.6 4-19 115 105 300
11/2" x 2" F 156 114.5 73 22 7 4-22 50 152 120.5 92 18 1.6 4-19 152 124 300
11/2" x 21/2" F 156 114.5 73 22 7 4-22 65 178 139.5 105 20 1.6 4-19 152 124 330
11/2" x3" F 156 114.5 73 22 7 4-22 80 190 152.5 127 22 1.6 4-19 152 124 330
2" x21/2" H 165 127 92 26 7 8-19 65 178 139.5 105 20 1.6 4-19 162 154 330
2" x 3" H 165 127 92 26 7 8-19 80 190 152.5 127 22 1.6 4-19 162 154 360
21/2" x 4" K 190 149 100 29 7 8-22 100 229 190.5 157 24 1.6 8-19 143 165 360
3" x 4" K 210 168 127 32 10 8-22 100 229 190.5 157 24 1.6 8-19 162 155 440
4" x 6" N 273 216 157 38 10 8-25 150 279 241.5 216 26 1.6 8-22 210 200 610
6" x 8" P 356 292 216 46 10 12-29 200 343 298.5 270 29 1.6 8-22 241 240 625

Remark: 150Lb for outlet flange

 

Materials for main parts

 

NO Name of part Materials A44Y-C Materials A44Y-P Materials A44Y-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 "H" depositing D507,  "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

A44C

Closed bonnet with Packed Lever