A48C Type Pound-Grade Full Lift Spring Loaded Safety Valve

 A48C Type Pound-Grade Full Lift Spring Loaded Safety Valve

A48C type pound-grade full lift spring loaded safety valve main property and specification


Normal 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 90%Pk
Reseating pressure Ph ≥90%Pk
Relieving pressure Pp ≤1.1Pk
Lift H (mm) ≥1/4 do
Appropriate temperature ≤350℃
Appropriate medium Steam

A48C type pound-grade full lift spring loaded safety valve code of throat diameter


Code
Diameter Code Diameter
D 10 L 50
E 13 M 55
F 16 N

A48C150
A48C300
A48C600

60
G 20.5 P 72
H 26 Q 96
J 33 R 115
K 40 T 148

A48C type pound-grade full lift spring loaded safety valve main dimension


No.
Name of part A41H-C/KA41Y-C
Materials
A41Y-P/KA41Y-P
Materials
A41Y-R/KA41Y-R
Materials
1 Body WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
2 Nozzle ZG2Cr13/1Cr18Ni9Ti ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
3 Adjusting ring ZG2Cr13/1Cr18Ni9Ti ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
4 Disc 2Cr13/1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
5 Guide sleeve ZG2Cr13/1Cr18Ni9Ti ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
6 Bonnet ZG230-450 ZG230-450 ZG230-450
7 Spring 50CrVA Coated Teflon Coated Teflon
8 Stem 2Cr13 2Cr13 1Cr18Ni12Mo2Ti
9 Adjusting bolt 45 2Cr13 2Cr13
10 Cap ZG200-400 ZG200-400 ZG200-400
Sealing surface of material D507 Depositing satellite
A48C300
Normal
Diameter
DN (in)
Dimension (mm)
do D D1 D2 b t z-¢d DN’ D’ D1’ D2’ b’ t’ z-¢d’ L L1 H
12/’’ ×3/4’’ D 95 66.5 35 15 6 4-15 20 98 70 43 14 1.6 4-15 90 90 290
3/4’’ ×1’’ D 117 82.5 43 16 10 4-19 25 105 79.5 51 15 1.6 4-15 96 92 310
1’’ ×1 1/2’’ D 124 90 51 18 7 4-19 40 127 98.5 73 18 1.6 4-15 115 105 320
1’’ ×2’’ D 124 90 51 18 6 4-19 50 152 120.5 92 18 1.6 4-19 115 105 320
1 1/2’’ ×2’’ F 156 114.5 73 20 6 4-22 50 152 120.5 92 18 1.6 4-19 121 124 350
1 1/2’’ ×2 1/2’’ F 156 114.5 73 20 9 4-22 65 178 139.5 105 20 1.6 4-19 121 124 360
1 1/2’’ ×3’’ F 156 114.5 73 20 6 4-22 80 190 152.5 127 22 1.6 4-19 124 130 360
2’’ ×2 1/2’’ H 165 127 92 22 6 8-19 65 178 139.5 105 20 1.6 4-19 124 130 380
2’’ ×3’’ H 165 127 92 22 6 8-19 80 190 152.5 127 22 1.6 4-19 124 130 380
2 1/2’’ ×4’’ J 190 149.5 105 24 7 8-22 100 229 190.5 157 24 1.6 8-19 143 137 380
3’’ ×4’’ L 210 168 127 28 10 8-22 100 229 190.5 157 24 1.6 8-19 162 156 480
4’’ ×6’’ N 254 200 157 32 12 8-22 150 279 241.5 216 26 1.6 8-22 229 181 540
6’’ ×8’’ P 318 270 216 38 10 12-22 200 343 298.5 270 29 1.6 8-22 241 240 760
8’’ ×10’’ 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
Normal
Diameter
DN (in)
Dimension (mm)
do D D1 D2 b t z-¢d DN’ D’ D1’ D2’ b’ t’ z-¢d’ L L1 H
3/4’’×1’’ D 117 82.5 43 16 10 4-19 25 108 79.5 51 15 1.6 4-15 96 92 310
1’’ ×2’’ D 124 90 51 19 6 4-19 50 152 120.5 92 18 1.6 4-19 115 105 320
1 1/2’’ ×2’’ F 156 114.5 73 22 10 4-22 50 152 120.5 92 18 1.6 4-19 152 124 360
1 1/2’’ ×2 1/2’’ F 156 114.5 73 22 9 4-22 65 178 139.5 105 20 1.6 4-19 152 214 380
1 1/2’’ ×3’’ F 156 114.5 73 22 6 4-22 80 190 152.5 127 22 1.6 4-19 152 124 380
2’’ ×2 1/2’’ H 165 127 92 26 6 8-19 65 178 139.5 105 20 1.6 4-19 162 154 410
2’’ ×3’’ H 165 127 92 26 6 8-19 80 190 152.5 127 22 1.6 4-19 162 154 410
2 1/2’’ ×4’’ K 190 149.5 105 29 7 8-22 100 229 190.5 157 24 1.6 8-19 143 165 410
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 273 215.9 157 38 12 8-25 150 279 241.5 216 26 1.6 8-22 210 200 540
6’’ ×8’’ P 292 292 216 46 10 12-28 200 343 298.5 270 29 1.6 8-22 241 240 760

Remark: 150Lb for outlet flange

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