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A48SC High Temperature and High Pressure With Radiator Safety Valve

Full lift safety valve for high temperture and high pressure condition, metal to metal seated, with plain type lever, Inlet: Flanged connection acc. to ANSI B16.5Outlet: Flanged connection acc. to ANSI B16.5Open bonnet, with radiator

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Type A48SC - Safety Valve


Safety Valves/pressure safety valves, angle type

Full lift safety valve for high temperture and high pressure condition, metal to metal seated, with plain type lever, 
Inlet: Flanged connection acc. to ANSI B16.5
Outlet: Flanged connection acc. to ANSI B16.5
Open bonnet, with radiator


Applications

Provided as safety device for protection excessive pressure in pressure vessels. Approved for gases, vapours and fluids in high temperature and high pressure condition.


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 1500 2500
Body strength Ps(Mpa) 3.0 7.5 15 22.5 38.0 63
Set pressure Pk(Mpa) 0.1-2 1.6-5 3.2-10 8-15 10-25 16-40
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. C ≤420℃
I ≤500℃
V ≤540℃
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 A48SY-C Materials A48SY-I Materials A48SY-V
1 Body WCB WC6 WC9
2 Nozzle WCB+STL WC6+STL WC9+STL
3 Adjusting Ring 420 304 304
4 Disc 17-4PH 304 304
5 Guide sleeve 420 304 304
6 Bonnet WCB WCB WCB
7 Spring ASTM6150 ASTM6150 ASTM6150
8 Stem F6a F6a F6a
9 Adjusting bolt 1045 2Cr13 2Cr13
10 Cap WCB WCB WCB
11 Radiator WCB WC6 WC9
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



Remark: 150Lb for outlet flange



Remark: 150Lb for outlet flange
 



Remark: 150Lb for outlet flange
 



Remark: 150Lb for outlet flange
 



Remark: 300Lb for outlet flange
 



Remark: 300Lb for outlet flange









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