1078D Butterfly Valve (Wafer Type), PN 1.0 with Pneumatic Actuator

1078D Butterfly Valve (Wafer Type), PN 1.0 with Pneumatic Actuator

Salient Features
  • Design Standard IS 13095 / BS EN 593 (BS 5155).
  • Wafer Type.
  • Double Acting Pneumatic Actuator Operated.
  • S.G Iron construction.
  • Stainless Steel (CF8 / CF8M*) Disc which is accurately guided between the two stems.
  • Actuator is with position indicator and adjustable center stopper for both open and closed position.
  • Scotch Yoke Technology as the most suitable mechanism for valve and damper operation, producing higher torque at both end positions.
  • Actuator is without  Rack and Pinion for smooth operation and longer life.
  • 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 1.0
Test Pressure (Hydrostatic) :
  • Shell : 1.5 MPa
  • Seat : 1.1 MPa
  • Maximum Working Pressure : 1.0 MPa
  • Maximum Working Temperature : 90°C

Materials

P.No. Name of Part Material of Construction Specification Qty.
1 Pneumatic Actuator  – – –  – – – 1
2 Actuator Base Carbon Steel – – – 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 Studs for Actuator Carbon Steel IS 1367 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 L – Key Bolts & Nuts Carbon Steel IS 1367 4 Each
13 Locking Washer Spring Steel – – – 1
14 Body Lining EPDM / Nitrile IS 5192 – 1 1
15 Name Plate Aluminium – – – 4
16 Nuts Carbon Steel IS 1367 4
17 Spring Washer Spring Steel – – – 4

Material Diagram

Sizes / Dimensions

Size (Inches) Size (mm) A ±1.5 ØB C ~ D ~ E ~ Actuator Model No.
2 50 43 50 73 235 185 PD 50
2 1/2 65 46 64.5 80 247 185 PD 50
3 80 46 79 88 258 185 PD 50
4 100 52 99 110 306 250 PD 70
6 150 56 148.7 151 340 250 PD 70
8 200 60 199.6 180 445 350 PD 100