AV-284 Cast Steel Double Post Safety ValveIBR Approved


  • AV-284 | Cast Steel Double Post Safety Valve
    Features

    High Life, Spring Loaded with S.S. Seat, S.S. Stem
    Inlet Flange to BS-10 Table ‘H’ FF (Undrilled), Outlet Flanged to BS-10 Table-D (Undrilled)

    Test Pressure
    Body : 500 Psig (Hyd.)
    Max. Working Pressure : 250 Psig (Steam)
    Max. Working Temp. : 400°C


    Suitability

    Water

    Steam

    Gas

    Oil

    Air


  • Material Combination
    P.No. Name of Part Material Specification Nos.
    1 Cap Cast Iron IBR 86 to 93 Gr.A 2
    2 Cotter Bronze IBR 282 (a) (iv) Gr.B 2
    3 Lever Cast Iron IBR 86 to 93 Gr.A 2
    4 Cover Cast Iron IBR 86 to 93 Gr.A 2
    5 Gasket C.A.F. 2
    6 Adjusting Screw Stainless Steel AISI 410 2
    7 Upper Spring Disc Cast Iron IBR 86 to 93 Gr.A 2
    8 Spring Chamber Cast Iron IBR 86 to 93 Gr.A 2
    9 Stem Stainless Steel AISI 410 2
    10 Lower Spring Disc Cast Iron IBR 86 to 93 Gr.A 2
    11 Spring Spring Steel IBR 307 2
    12 Gasket C.A.F. 2
    13 Disc Stainless Steel ASTM A217 Gr. CA15 / ASTM A276 Type 410 + Stellite 2
    14 Ring Bronze IBR 282 (a) (iv) Gr.B 2
    15 Screw Carbon Steel 2
    16 Regulating Ring Bronze IBR 282 (a) (iv) Gr.B 2
    17 Body Cast Steel IBR 73 to 80 1
    18 Body Seat Ring Stainless Steel ASTM A276 Type 410 + Stellite 2
    19 Bush Bronze IBR 282 (a) (iv) Gr.B 2
    20 Bolts and Nuts Carbon Steel
    AV-284 | Cast Steel Double Post Safety Valve
  • Dimensional Data
    Nominal Size (mm) CC ØFW ØFD FT ØFW1 ØFD1 FT1 H
    25 152.4 38.1 139.7 17.5 38.1 133.4 12.7 480
    40 165 57.2 184.2 19.1 63.5 165.1 14.3 565
    50 190.5 73 203.2 22.3 76.2 184.2 14.3 630
    AV-284 | Cast Steel Double Post Safety Valve
  • AV-284 | Cast Steel Double Post Safety Valve
    Product Inquiry
Features

High Life, Spring Loaded with S.S. Seat, S.S. Stem
Inlet Flange to BS-10 Table ‘H’ FF (Undrilled), Outlet Flanged to BS-10 Table-D (Undrilled)

Test Pressure
Body : 500 Psig (Hyd.)
Max. Working Pressure : 250 Psig (Steam)
Max. Working Temp. : 400°C

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Suitability

Water

Steam

Gas

Oil

Air


Material Combination
P.No. Name of Part Material Specification Nos.
1 Cap Cast Iron IBR 86 to 93 Gr.A 2
2 Cotter Bronze IBR 282 (a) (iv) Gr.B 2
3 Lever Cast Iron IBR 86 to 93 Gr.A 2
4 Cover Cast Iron IBR 86 to 93 Gr.A 2
5 Gasket C.A.F. 2
6 Adjusting Screw Stainless Steel AISI 410 2
7 Upper Spring Disc Cast Iron IBR 86 to 93 Gr.A 2
8 Spring Chamber Cast Iron IBR 86 to 93 Gr.A 2
9 Stem Stainless Steel AISI 410 2
10 Lower Spring Disc Cast Iron IBR 86 to 93 Gr.A 2
11 Spring Spring Steel IBR 307 2
12 Gasket C.A.F. 2
13 Disc Stainless Steel ASTM A217 Gr. CA15 / ASTM A276 Type 410 + Stellite 2
14 Ring Bronze IBR 282 (a) (iv) Gr.B 2
15 Screw Carbon Steel 2
16 Regulating Ring Bronze IBR 282 (a) (iv) Gr.B 2
17 Body Cast Steel IBR 73 to 80 1
18 Body Seat Ring Stainless Steel ASTM A276 Type 410 + Stellite 2
19 Bush Bronze IBR 282 (a) (iv) Gr.B 2
20 Bolts and Nuts Carbon Steel
Dimensional Data
Nominal Size (mm) CC ØFW ØFD FT ØFW1 ØFD1 FT1 H
25 152.4 38.1 139.7 17.5 38.1 133.4 12.7 480
40 165 57.2 184.2 19.1 63.5 165.1 14.3 565
50 190.5 73 203.2 22.3 76.2 184.2 14.3 630

Selected Product

AV-284 Cast Steel Double Post Safety Valve

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Products (By Standard)

IBR Approved

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