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Nova Butterfly Valve Wafar 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 D E F G FLANGE MOUNTING
(I.S.O 5211)
MM INCH
40 11/2" 36 92 52 20 65 180 15 F05
50 2" 43 103 70 28 65 180 15 F05
65 21/2" 46 110 76 48 65 180 15 F05
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 LEVER 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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