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 PartMaterial of ConstructionSpecificationQty.
1Pneumatic Actuator – – – – – –1
2Actuator BaseCarbon Steel– – –1
3Packing BushPTFE / Bronze– – – / IS 318 Gr. LTB 21
4Upper StemStainless SteelIS 6603 Gr. 12 Cr121
5BodyS.G IronIS 1865 Gr. 400/151
6DiscStainless SteelIS 3444 Gr. 6 / ASTM A 351 Gr. CF8/CF8M1
7Studs for ActuatorCarbon SteelIS 13671
8BushPTFE / Bronze– – – / IS 318 Gr. LTB 21
9Lower StemStainless SteelIS 6603 Gr. 12 Cr121
10‘O’ RingNitrile RubberIS 5192 – 11
11Dowel PinSpring Steel– – –1
12L – Key Bolts & NutsCarbon SteelIS 13674 Each
13Locking WasherSpring Steel– – –1
14Body LiningEPDM / NitrileIS 5192 – 11
15Name PlateAluminium– – –4
16NutsCarbon SteelIS 13674
17Spring WasherSpring Steel– – –4

Material Diagram

Sizes / Dimensions

Size (Inches)Size (mm)A ±1.5ØBC ~D ~E ~Actuator Model No.
250435073235185PD 50
2 1/2654664.580247185PD 50
380467988258185PD 50
41005299110306250PD 70
615056148.7151340250PD 70
820060199.6180445350PD 100