CI029 Cast Iron Butterfly Valve PN-16 (Wafer Type)

ci029
  • Item Code: CI0029
  • Disc: Ductile Iron
  • Pressure Rating: PN-16
  • Testing Standard: BSEN 12266 Part-1
  • Size Range: 40mm to 400mm
  • Product Standard: BS 5155, EN 593, API 609 CAT.A.

Suitable For

ci095a

Material Specification

P. NO. NAME OF PART MATERIAL
1 LEVER 1-1/2" TO 6" M.S. SHEET (IS 2062) / C.C.S. (ASTM A216 Gr. WCB)
/ NODULAR IRON (B.S. 2789 Gr. 500/7)
8" TO 12"
2 SPRING WASHER CARBON STEEL
3 COVER PLATE M.S. SHEET
4 NUTS C.S. (BS 4190) / ALLOY STEEL (ASTM A194 Gr.2H)
5 BOLTS C.S. (BS 4190) / ALLOY STEEL (ASTM A193 Gr.B7)
6 BODY C.I. (EN 1561 Gr. GJL 200)
7 UPPER STEM S.S. (ASTM A276 TYPE 410) OR ITS EQ.
8 'O' RING BUNA-N / EPDM (SHORE HARDNESS 60° ±4)
9 MOULDED LINER BUNA-N / EPDM (SHORE HARDNESS 70° ±4)
10 LOWER STEM S.S. (ASTM A276 TYPE 410) OR ITS EQ.
11 BUSHING HEAVY DUTY CORROSION RESISTANT TO ABSORB SIDE THRUST
12 WASHER BUNA-N / EPDM (SHORE HARDNESS 60° ±4)
13 GRUB SCREW MILD STEEL
14 DISC D.I. (ASTM A395)
15 BUSH PH. BRONZE / PTFE
16 TAPER PIN STEEL (HARDENED)
17 GEAR BOX C.I. (EN 1561 Gr. GJL 200)
18 HAND WHEEL C.I. (EN 1561 Gr. GJL 200) / M.S. (IS 2062 Gr.B)
ci029
ci029

Dimensional Data

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SIZE (mm) 40 50 65 80 100 125 150 200 250 300 350 400
~A 260 260 260 260 260 260 260 356 406 406 - -
B~ 120 133 150 153 210 200 237 235 290 330 - -
C~ 64 75 96 100 120 140 147 178 214 260 281 315
E 33±1 43±1 46±1 46±1 52±1 56±1 56±1 60±2 68±2 78±2 92±2 102±2
∅F 15.8 19 19 19 19 22.3 22.3 22.3 25.4 25.4 28.6 28.6
G 98.5 120.6 139.7 152.4 190.5 215.9 241.3 298.4 361.9 431.8 476.2 539.8
I~ - - - - - - 240 240 290 330 340 412
∅J - - - - - - 200 200 250 250 300 500
N 4 4 4 4 8 8 8 8 12 12 12 12

Principle Features

INTRODUCTION
Leader Butterfly Valves are designed to meet the flow control requirement of plumbing, fire-fighting and HVAC application. The body seat is vulcanised in-situ onto the body and offers 100% bi-directional sealing. The lugged wafer-style body has universal design to fit between flanges of all almost all standards.

  • Design Standard: BS 5155, EN 593, API 609 CAT. A.
  • Lugged Wafer type design makes it compact and takes lesser space.
  • Dynamic sealing of concentric disc is obtained with vulcanised rubber seat at very low torque.
  • High-precision disc external profile for smooth operation & tight shut-off sealing with low operating torque.
  • Moulded rubber body seat extending on to the contact faces ensures perfect sealing and eliminates the need for separate flange gaskets.
  • Notch plate ensures the locking of the hand lever at different positions in addition to open and closed positions.
  • Shaft sealing is ensured by double sealing of Bush and ’0’ ring combination.
  • Body castings made of superior FG 260 grade cast iron to ensure additional strength.
  • Valve disc made of ductile iron with epoxy coating offers high strength against pressure.
  • Shaft made of martensitic stainless steel to ensure maximum strength and torsional rigidity.
  • Two-piece stem design which is precisely guided between the PTFE bush & Rubber ‘0’ Rings to prevent leakage, corrosion, and stem seizure.
  • Taper disc holder pins to ensure shockproof shaft to disc connection & suitability of replacement at field.
  • Easy visual control of open/closed position marked on the notch plate.
  • Operation mode manual, gear, electric, pneumatic.
  • Available with locking arrangement on request.
  • Temper Switch / supervisory limit switches option available on request.
  • Top flange as per ISO 5211 to suit F Series flanges of Gears and Actuators.

END CONNECTION

  • Suitable for Clamping between flanges as per ASME B16.1 Class-125, ASME B16.5 Class-150, IS 6392, Table 17, IS 1538, BSEN 1092 PN25, BS:10 Table D, E, F, H.

UTILISATION & SERVICE

  • Best suited for water, HVAC, fire-fighting service.

WORKING PRESSURE & TEMPERATURE LIMITS

  • Maximum Working Pressure: 16 Bar.
  • Maximum Working Temperature: 120°C.
  • See Pressure / Temperature Diagram.

TEST PRESSURE (Hydrostatic)

Rating PN-16
Body (Hyd.) 24 Bar
Seat (Hyd.) 17.6 Bar

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