TEST PRESSURE | |||
Size | Test Pressure | Working Pressure | |
Of | HGF / CM2 | HGF / CM2 | |
Valve | Body | Seat | |
50 to 125 | 24 | 16 | 16 |
150 to 300 | 15 | 10 | 10 |
350 to 600 | 9 | 6 | 6 |
LEGEND | |||
SL No | Component | Sl No. | Component |
1 | Body | 6 | Hinge Pin |
2 | Cover | 7 | Bolts & Nut |
3 | Door | 8 | Gasket |
4 | Door face Disk | 9 | By Pass Arrangement |
5 | Hinge | 10 | Plug |
DIMENSION (in mm) | ||||||||||||||
Nominal Bore | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
Face to face | 200 | 240 | 260 | 300 | 350 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1300 |
Hinge Pin Dia (Min) | 10 | 10 | 10 | 12 | 12 | 16 | 20 | 22 | 25 | 25 | 32 | 32 | 38 | 38 |
thickness of Flange | 16 | 16 | 21 | 22 | 22.5 | 23 | 24.5 | 26 | 29 | 29 | 30 | 32 | 33 | 36 |
Flange Dia | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 395 | 445 | 505 | 565 | 615 | 670 | 780 |
Number of Holes | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 12 | 16 | 16 | 16 | 20 | 20 | 20 |
Dia of Bolt Holes | 19 | 19 | 19 | 19 | 19 | 23 | 23 | 23 | 23 | 23 | 28 | 28 | 28 | 31 |
Dia of Bolt Circle | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 350 | 400 | 460 | 515 | 565 | 620 | 725 |
BY PASS ARRANGEMENT | ||||||||||||||
Size of valve, mm | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
Size of-pass arrangements, Min mm | 10 | 10 | 10 | 10 | 15 | 15 | 25 | 25 | 40 | 40 | 40 | 50 | 50 | 50 |
Bill of Materials | |||||||
SL NO | COMPONENT | BASIC | ALTERNATIVE | ||||
Material | Ref. To Is | Grade or Designation | Material | Ref. to IS | Grade or Designation | ||
1 | Body, Cover, Door, bearing holder and door face disc | Gray cast iron | 210 - 1979 | FG 200 | - | - | - |
2 | Hinges | gray cast Iron | 210 - 1979 | FG 200 | Cast Steel Mild Steel |
IS:1030 - 1974 IS: 226-1975 |
Fe 410 s |
3 | Hinge pin door pin and door Suspensions | High tensile brass | 320 -1980 6912 | HT 2 FHTB 2 | - | - | - |
4 | Bolts | Carbon Steel | 1363 - 1967 | Class 4.6 | - | - | - |
5 | Nuts, nuts for hinge pins | Carbon Steel | 1363 - 1967 | Class4 | - | - | - |
6 | Bearing bushes | Leaded tin bronze | 318 - 1981 | LTB2 | Austenitic | 2749-1974 | ASG M 20 Cr2 |
7 | Body rings | Leaded tin bronze | 318 - 1981 | LTB2 | Austenitic Stainless Steel SG iron | 6603-1972 1865-1974 |
o4 Cr 17 Ni Mo2and o4 Cr 18 Ni 10 500/7 |
8 | Door faces | Natural rubber / synthetic rubber | Specific gravity 2.20± 0.05; Shore hardness 70 + 5; ultimate tensile stength (minimum) 10 MPal - 100 kg/cm2 | Leaded tin bronze | 318-1981 | LTB 2 | |
9 | Flange jointing material | Compressed fibre board | 2712-1971 | C | Rubber | 638-1979 | Type B |
10 | Plugs for hinge pins, air release plug | Galavanized malleable | - | - | i ) Carbon Steel ii ) Galavanized SG iron iii ) Leaded tin bronze |
7283-1974 1865-1974 318-1981 |
- 500/7 LTB 2 |
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