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Nova Butterfly Valve Double Flanged Centric Disc Type

CONFORMITY TO CODES & STANDARDS

  1. General Design & Manufacture :- BS 5155 / API 609 / EN 593 / IS 13095
  2. Valve Face to Face Dimension :- BS 5155 / ISO 5752 / API 609
  3. Top Flange Drilling :- ISO 5211
  4. Valve Inspection & Testing :- BS 6755 Part-I / API 598 / EN 12266-1
  5. Flange Standard Conformity :- ANSI 150 / ANSI 125 / BS 10 TAB D & E IS 6392 NP 0.6 / 1.0 / 1.6

 

ALL DIMENSION ARE IN MM.
SIZE A B C E F G FLANGE MOUNTING
(I.S.O 5211)
MM INCH
50 2" 108 125 85 65 180 15 F05
65 21/2" 112 135 95 65 180 15 F05
80 3" 114 155 102 65 215 15 F05
100 4" 127 160 112 65 215 15 F05
125 5" 140 180 134 65 265 15 F05
150 6" 140 210 147 65 265 15 F05
200 8" 152 250 175 75 325 15 F07

NOTE:- M,N,O AS PER REQUIREMENT

M =..............................................

N =..............................................

O =..............................................

MATERIAL OF CONSTRUCTION
NO PART NAME MATERIAL
1 BODY CAST IRON/CAST STEEL/S.S.304-316
2 DISC CAST IRON/CAST STEEL/S.S.304-316
3 SPINDLE SS 410/304/316
4 BODY LINING NITRILE/E.P.D.M./SILICON/VITON/HYPALON
5 'O' RING NITRILE/E.P.D.M.
6 PIN S.S.304/316
7 HANDLE M.S.FABRICATED
SEAT TEMPERATURE RANGE
SEAT TYPE TEMPERATURE RANGE
MIN. MAX.
NITRILE -13F(-25C) 212F(120C)
EPDM -13F(-25C) 250F(120C)
SILICON -58F(-50C) 356F(180C)
VITON -23F(-5C) 392F(200C)
HYPALON -4F(-20C) 250F(120C)
TESTING
PRESSURE RATING HYDROSTATIC SHELL TEST HYDROSTATIC SEAT TEST
Kg/CM2 PSI Kg/CM2 PSI
PN16 22 310 16 225
PN10 15 210 10 140

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