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Type A46C - Pilot Operated Safety Valve

 

Pilot operated safety valve, newly structured--is mainly applied to such trades as petroleum & natural gas, chemistry, electric, metallurg & burning gas. It is the best super-pressure protecting equipment on presss equipment, container or pipeline. It is mainly characteized by shifting direct function of spring to indirect function of quide valve. What's more, main valve, applying for sleeve piston & double sealed seat, is characterized by high precision of action, good recycling function, fast turning back to seat, ability to high pressure leaking, long working time and security, together with read-justment on line, automatic turning back to saet after leaking again and again, tight closure, operating and maintaining convenience.

 

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 37.5
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. ≤250℃
Appropriate       Medium Air, oil, water, 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

Size Orifice Inlet LB Outlet LB L L1 C Size Orifice Inlet LB Outlet LB L L1 C
1" X 2" D.E.F 150 150 115 105 106 2" x 3" G.H.J 150 150 130 130 457
300 150 115 105 106 300 150 130 130 457
600 150 115 105 106 600 150 130 130 457
900 300 121 125 508 900 300 167 167 559
1500 300 121 125 508 1500 300 167 167 559
2500 300 121 125 508 2500 300 178 178 559
11/2" x2" D.E.F 150 150 121 124 432 3" x4" J.K.L 150 150 156 156 483
300 150 121 124 432 300 150 156 156 483
600 150 121 124 432 600 150 162 162 483
900 300 140 149 533 900 300 190 190 610
1500 300 140 149 533 1500 300 190 190 610
2500 300 140 149 533  
11/2" x3" G.H 150 150 124 130 457 4" x 6" L.M.N.P 150 150 229 181 559
300 150 124 130 457 300 150 229 181 559
600 150 124 130 457 600 150 229 181 559
900 300 171 162 559 900 300 233 249 711
1500 300 171 162 559 1500 300 233 249 711
2500 300 171 162 559 2500 600 264 249 711
                           
6" x8" Q.R 150 150 240 240 635 8" x10" T 150 150 279 276 711
300 150 240 240 635 300 150 279 276 711
600 150 240 240 635 600 150 279 297 737

 

Materials for main parts

NO. Name of part Ax46Y/F AF46Y/F Material KAx46Y/F Material
1 Body WCB WCB
2 Disc 2Cr13/PTFE 304/PTFE
3 Guide 304 304
4 Spring 50CrVA 50CrVA
5 O type ring Viton Viton
6 Bonnet 25 25
7 Pilot valve Parts

 

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

A46C

Pilot operated type, for high back pressure fluid