CI096 Cast Iron Butterfly Valve PN-25 (Wafer Type)

ci096
  • Item Code: CI0096
  • Disc: Ductile Iron
  • Pressure Rating: PN-25
  • Testing Standard: BSEN 12266 Part-1
  • Size Range: 40mm to 300mm
  • Product Standard: BS 5155, EN 593, API 609 CAT.A.

Suitable For

ci096

Material Specification

P. NO. NAME OF PART MATERIAL
1 GRUB SCREW MILD STEEL
2 HANDLE UP TO 6" M.S. SHEET (IS 2062) FABRICATED (POWDER COATED)
/ C.C.S. (ASTM A216 Gr. WCB)
8" TO 12"
3 L-KEY BOLT CARBON STEEL
4 INDEXING PLATE MILD STEEL (IS 2062)
5 NUT CARBON STEEL
6 BODY C.I. (EN 1561 Gr. GJL 200)
7 STEM S.S. (ASTM A276 TYPE 410) OR ITS EQ.
8 MOULDED LINER BUNA-N / EPDM (SHORE HARDNESS 70° ±4)
9 TAPER PIN HANDENED STEEL
10 DISC D.I. (ASTM A395)
11 'O' RING BUNA-N / EPDM (SHORE HARDNESS 60° ±4)
12 BUSHING PTFE
13 GRUB SCREW MILD STEEL
14 PACKING BUNA-N / EPDM (SHORE HARDNESS 60° ±4)
15 GEAR BOX ------
16 HAND WHEEL MILD STEEL (IS 2062)
ci096

Dimensional Data

ci096
SIZE (mm) 40 50 65 80 100 125 150 200 250 300
~A 212 212 212 212 212 212 260 356 406 406
~B 118 130 146 151 182 191 210 236 290 320
~C 64 70 81 81 116 142 147 171 211 248
∅D 81 95 111 120 144 175 200 255 325 374
E 33±1 43±1 46±1 46±1 52±1 56±1 56±1 60±1 68±2 78±2
~F 180 180 180 180 180 180 180 180 220 220
∅G 175 175 175 175 175 175 175 175 250 250
H~ 125 137 153 160 170 207 218 243 300 330

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 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.
  • Wafer type design makes it compact and take 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 onto 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 position in addition to open and closed position.
  • Shaft sealing is ensured by double sealing of Bush and ‘0’ ring combination.
  • Body castings made of superior GJL 200 grade cast iron to ensure additional strength.
  • Valve disc made of ductile iron offers high strength against pressure.
  • Shafts 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 BSEN 1092 PN-25.
  • Suitability for insertion between other flange standards also available upon request.

UTILISATION & SERVICE

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

WORKING PRESSURE & TEMPERATURE LIMITS

  • Maximum Working Pressure: 25 Bar.
  • Maximum Working Temperature: 120°C.
  • See Pressure / Temperature Diagram.

TEST PRESSURE (Hydrostatic)

Rating PN-25
Body (Hyd.) 37.5 Bar
Seat (Hyd.) 27.5 Bar

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