AV-271A Cast Carbon Steel Piston Valve, Flanged Ends, Class-150IBR Approved


  • AV-271A | Cast Carbon Steel Piston Valve, Flanged Ends, Class-150
    Features

    Product Standard

    ASME B16.34

    Testing Standard

    API-598

    Pressure / Class Rating

    Class-150

    Body Material Cum Standard

    Cast Carbon Steel (ASTM A216 Gr. WCB)

    Product Description

    Bolted Bonnet, Rising Stem, Handwheel Operated

    Type of Seat

    Renewable Seat

    Type of Disc

    Renewable Piston

    Trim

    Valve Rings: Atam Standard, Spacer & Piston: 13% Cr. (SS 410)

    End Details

    Flanged Ends as per ASME B16.5 Class-150 Raised Face (Drilled)

    Test Pressure

    Body: 30 Bar (Hyd.), Seat: 22 Bar (Hyd.), Seat: 7 Bar (Air)

    Max. Working Temperature

    425°C

    Application Medium

    Super Heated Steam, Condensate, Thermic Fluids, Hydro Carbons, Chemicals

    Notes

    Test Certificate in Form III-C as per IBR is furnished with every supply.
    Balanced piston arrangement is available in sizes 65mm & above, to address high torque.
    Contact for other service applications.


    Suitability

    Water

    Steam

    Gas

    Oil

    Air


  • Material Combination
    S.No Description No. Material Specifications
    1 Body 1 Cast Steel ASTM A 216 Gr. WCB
    2 Lower Valve Ring 1 Atam Standard S.S. Re-inforced Graphite
    3 Spacer 1 Stainless Steel ASTM A 217 Gr. CA 15
    4 Upper Valve Ring 1 Atam Standard S.S. Re-inforced Graphite
    5 Piston* 1 Stainless Steel ASTM A 276 TP 410
    6 Bonnet 1 Cast Steel ASTM A 216 Gr. WCB
    7 Stem Nut 1 Aluminium Bronze BS 1982 Gr. CC 331G
    8 Handwheel 1 Cast Iron / Mild Iron GG 20/FG 200/MI
    9 Handwheel Nut 1 Carbon Steel
    10 Stem 1 Stainless Steel ASTM A 276 TP 410
    11 Nut 4 Carbon Steel ASTM A 194 Gr. 2H
    12 Belleville Washers 4 Carbon Steel
    13 Stud & Nut 4 Alloy Steel & H.T. Steel ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H
    AV-271A | Cast Carbon Steel Piston Valve, Flanged Ends, Class-150
  • Dimensional Data
    øDN FF H øHW øFD FT RFD RFH øK n ød
    25 127 154 140 110 9.6 51 2 79.4 4 16
    40 165 185 200 125 12.7 73 2 98.4 4 16
    50 203 210 200 150 14.3 92 2 121 4 19
    65 216 320 250 180 15.9 105 2 139.7 4 19
    80 241 330 250 190 17.5 127 2 152.4 4 19
    100 292 390 280 230 22.3 157.2 2 190.5 8 19
  • AV-271A | Cast Carbon Steel Piston Valve, Flanged Ends, Class-150
    Product Inquiry
Features

Product Standard

ASME B16.34

Testing Standard

API-598

Pressure / Class Rating

Class-150

Body Material Cum Standard

Cast Carbon Steel (ASTM A216 Gr. WCB)

Product Description

Bolted Bonnet, Rising Stem, Handwheel Operated

Type of Seat

Renewable Seat

Type of Disc

Renewable Piston

Trim

Valve Rings: Atam Standard, Spacer & Piston: 13% Cr. (SS 410)

End Details

Flanged Ends as per ASME B16.5 Class-150 Raised Face (Drilled)

Test Pressure

Body: 30 Bar (Hyd.), Seat: 22 Bar (Hyd.), Seat: 7 Bar (Air)

Max. Working Temperature

425°C

Application Medium

Super Heated Steam, Condensate, Thermic Fluids, Hydro Carbons, Chemicals

Notes

Test Certificate in Form III-C as per IBR is furnished with every supply.
Balanced piston arrangement is available in sizes 65mm & above, to address high torque.
Contact for other service applications.

Download PDF

Suitability

Water

Steam

Gas

Oil

Air


Material Combination
S.No Description No. Material Specifications
1 Body 1 Cast Steel ASTM A 216 Gr. WCB
2 Lower Valve Ring 1 Atam Standard S.S. Re-inforced Graphite
3 Spacer 1 Stainless Steel ASTM A 217 Gr. CA 15
4 Upper Valve Ring 1 Atam Standard S.S. Re-inforced Graphite
5 Piston* 1 Stainless Steel ASTM A 276 TP 410
6 Bonnet 1 Cast Steel ASTM A 216 Gr. WCB
7 Stem Nut 1 Aluminium Bronze BS 1982 Gr. CC 331G
8 Handwheel 1 Cast Iron / Mild Iron GG 20/FG 200/MI
9 Handwheel Nut 1 Carbon Steel
10 Stem 1 Stainless Steel ASTM A 276 TP 410
11 Nut 4 Carbon Steel ASTM A 194 Gr. 2H
12 Belleville Washers 4 Carbon Steel
13 Stud & Nut 4 Alloy Steel & H.T. Steel ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H
Dimensional Data
øDN FF H øHW øFD FT RFD RFH øK n ød
25 127 154 140 110 9.6 51 2 79.4 4 16
40 165 185 200 125 12.7 73 2 98.4 4 16
50 203 210 200 150 14.3 92 2 121 4 19
65 216 320 250 180 15.9 105 2 139.7 4 19
80 241 330 250 190 17.5 127 2 152.4 4 19
100 292 390 280 230 22.3 157.2 2 190.5 8 19

Selected Product

AV-271A Cast Carbon Steel Piston Valve, Flanged Ends, Class-150

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