DI058 Ductile Iron Gate Valve PN-20 (Flanged)

di058
  • Item Code: DI0058
  • Pressure Rating: PN-20
  • Testing Standard: As per IS 14846
  • Size Range: 50mm to 300mm
  • Product Standard: As per IS 14846

Suitable For

di058

Material Specification

P. NO. NAME OF PART MATERIAL SPECIFICATION
1 KEY CARBON STEEL --------
2 HAND WHEEL RETAINING NUT CARBON STEEL IS 2062 Gr. A
3 HAND WHEEL CAST IRON IS 210 Gr. FG 200
4 YOKE SLEEVE RETAINING NUT LEADED TIN BRONZE IS 318 Gr. LTB2
5 YOKE SLEEVE LEADED TIN BRONZE IS 318 Gr. LTB2
6 STEM STAINLESS STEEL ASTM A276 TYPE 410
7 GLAND T-HEAD BOLTS CARBON STEEL IS 1363
8 GLAND NUTS CARBON STEEL IS 1363
9 GLAND FLANGE DUCTILE IRON ASTM A395
10 GLAND FOLLOWER CAST IRON ASTM A276 TYPE 410
11 BONNET DUCTILE IRON ASTM A395
12 GLAND PACKING TO SUIT SERVICE CONDITIONS  
13 BACK SEAT BUSHING STAINLESS STEEL ASTM A395
14 GASKET C.N.A.F. --------
15 BOLTS & NUTS CARBON STEEL IS 1363
16 BODY DUCTILE IRON ASTM A395
17 WEDGE DUCTILE IRON ASTM A395
18 WEDGE RING LEADED TIN BRONZE IS 318 Gr. LTB2
19 BODY SEAT RING LEADED TIN BRONZE IS 318 Gr. LTB2
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Dimensional Data

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SIZE (mm) 50 65 80 100 125 150 200 250 300
L±2 178 190 203 229 254 267 292 330 356
T 16.3 17.9 19.5 24.3 24.3 25.9 29 30.6 32.2
∅b 50 65 80 100 125 150 200 250 300
K 120.7 139.7 152.4 190.5 215.9 241.3 298.5 362 431.8
∅D 150 180 190 230 255 280 345 405 485
~H 338 419 466 499 571 649 802 1020 1060
∅HW±5 280 280 280 360 360 360 450 640 640
n 4 4 4 8 8 8 8 12 12
∅d 19 19 19 19 22.2 22.2 22.2 25.4 25.4

Principle Features

INTRODUCTION

Leader Ductile Iron Gate Valves (Rising Spindle) are best suited for services that require infrequent valve operation, and where the wedge is kept either fully opened or fully closed. It offers the ultimate dependable service wherever minimum pressure drop is important. Outside screw and yoke (OS&Y) feature offer quick visual indicator of open/closed position is required. The OS&Y configuration protects the stem.

  • Designed as per 1S:14846.
  • Bolted Bonnet, Outside screw & Yoke type, Rising Stem.
  • Solid Wedge, Metal to Metal seating.
  • Body & Bonnet castings made of superior Ductile Iron ASTM A395 grade to ensure additional strength.
  • Gun Metal Body & Wedge rings, Stainless Steel Stem.
  • Compact & rigid structure.
  • Provided full flow with minimal pressure drop.
  • Small opening and closing torque.
  • Outside Screw & Yoke configuration protects the stem & offer quick visual indicator of open/closed position.
  • Using Non-Asbestos packing, reliable sealing, light and flexible operation.
  • Robust construction of hand wheel in open spoke design.
  • Provision for re-packing under pressure in the installed condition.
  • Easy visual control of open/closed position marked on the hand wheel.
  • Operation mode manual, gear, electric, pneumatic.
  • Available with open-shut indicator & locking arrangement on request.
  • Flanged ends as per ASME B16.5 CL-150 (FF).
  • Widely applied for low-pressure and ambient-temperature utility services such as water supply, power plants, sewage treatment, gas supply, district heating piping, irrigation projects, air conditioning systems, as well as food processing industry, chemical and petrochemical industry, pharmaceutical and powder industry for access or cut off the medium pipeline opening and closing devices.

END CONNECTION

  • Flanges as per ASME B16.5 CL-150 (FF), Drilled.
  • Flange drilling as per other standards also available upon request.

UTILISATION & SERVICE

  • Best suited for potable water, treated fresh water, neutral liquids & some gases.

WORKING PRESSURE

  • Maximum Working Pressure: 20 Bar.
  • See Pressure / Temperature Diagram.

TEMPERATURE LIMITS

  • Maximum Working Temperature: 220°C.
  • See Pressure / Temperature Diagram.

TEST PRESSURE (Hydrostatic)

Rating PN-20
Body (Hyd.) 30 Bar
Seat (Hyd.) 22 Bar

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