1078I Butterfly Valve (Wafer Type), PN 2.5 with S.S 304 Disc

1078I Butterfly Valve (Wafer Type), PN 2.5 with S.S 304 Disc

Salient Features

  • Design Standard IS 13095 / BS EN 593 (BS 5155).
  • Wafer Type.
  • Gear Operated.
  • S.G Iron construction.
  • Stainless Steel (CF8 / CF8M*) Disc which is accurately guided between the two stems.
  • Integrally moulded rubber lining (EPDM / Nitrile / Neoprene* / Viton* / Silicon*) as per requirement which provides seating to the valve disc, as a primary seal to the stem and gasket joint with matching pipe flanges.
  • Two Piece Stem design which is precisely guided between the PTFE / Bronze bushes.
  • Compatible to sandwich between flanges as per BS 10 Table D, E, F,H, DIN, PN 10, PN 16, PN 25, PN 40, ASA 150, ASA 300, IS 778, IS 6392 Table 17 and IS 1538.
PN 2.5

Test Pressure (Hydrostatic) :

  • Shell : 3.75 MPa
  • Seat : 2.75 MPa
  • Maximum Working Pressure : 2.5 MPa
  • Maximum Working Temperature : 90°C

Materials

P.No. Name of Part Material of Construction Specification Qty.
1 Flow Control Lever Carbon Steel (Powder Coated) – – – 1
2 Notch Plate Carbon Steel (Powder Coated) – – – 1
3 Packing Bush PTFE / Bronze – – – / IS 318 Gr. LTB 2 1
4 Upper Stem Stainless Steel IS 6603 Gr. 12 Cr12 1
5 Body S.G Iron IS 1865 Gr. 400/15 1
6 Disc Stainless Steel IS 3444 Gr. 6 / ASTM A 351 Gr. CF8/CF8M 1
7 Name Plate Aluminium – – – 1
8 Bush PTFE / Bronze – – – / IS 318 Gr. LTB 2 1
9 Lower Stem Stainless Steel IS 6603 Gr. 12 Cr12 1
10 ‘O’ Ring Nitrile Rubber IS 5192 – 1 1
11 Dowel Pin Spring Steel – – –  1
12 C – Sunk Screw & Nuts Carbon Steel – – – 2 Each
13 Locking Washer Spring Steel – – – 2
14 Body Lining EPDM / Nitrile IS 5192 – 1 1

Material Diagram

Sizes / Dimensions

Size (Inches) Size (mm) A ±1.5 ØB C ~ D ~ E ~
1 1/2 40 33  38.5 57 113 260
2 50 43  50 73 125 260
2 1/2 65 46  64.5 80 140 260
3 80 46  79 88 145 260
4 100 52  99 110 178 260
5 125 56  124.5 122 190 260
6 150 56  148.7 151 204 260