DI103 Ductile Iron Double Regulating Balancing Valve with Test Cock PN-16 (Flanged)

DI103
  • Item Code: DI0103
  • Pressure Rating: PN-16
  • Testing Standard: BS 7350
  • Size Range: 50mm to 250mm
  • Product Standard: BS 7350

Suitable For

DI103

Material Specification

P. NO. NAME OF PART MATERIAL
1 BODY DUCTILE IRON (ASTM A395)
2 DISC D.I. (ASTM A395) + RUBBER FACING
3 DISC NUT BRASS ROD (DIN 12165 Gr. CW721R)
4 BOTTLE BRASS ROD (DIN 12165 Gr. CW721R)
5 STEM S.S. (ASTM A276 TYPE 410)
6 GASKET GRAPHITE FILLED
7 BONNET DUCTILE IRON (ASTM A395)
8 PLATE STAINLESS STEEL (TYPE 304)
9 INDICATOR CAP PLASTIC
10 POSITION INDICATOR PLASTIC
11 HAND WHEEL CAST IRON
12 ADJUSTING SCREW MILD STEEL
13 O-RING RUBBER / EPDM
14 O-RING RUBBER / EPDM
15 L-KEY BOLTS STAINLSS STEEL (TYPE 3040)
16 L-KEY BOLTS STAINLSS STEEL (TYPE 3040)
17 PLUG H.T. BRASS (DIN 12165 Gr. CW721R)
DI103

Dimensional Data

DI103
 
SIZE (mm) 50 65 80 100 125 150 200 250 300
FF±2 230 290 310 350 400 480 600 730 850±3.2
FT 20 20 22 24 26 26 30 32 32
RFH 03 03 03 03 03 03 03 03 04
∅B 50 65 80 100.5 125 150 200 250 300
∅RFD 102 122 138 158 188 212 268 320 378
∅FD 165 185 200 220 250 285 340 405 460
~H 305 330 335 340 400 410 575 615 662
∅HW 180 180 180 180 200 200 350 350 350
K 125 145 160 180 210 240 295 355 410
nx∅d 4x18 4x18 8x18 8x18 8x18 8x22 12x22 12x26 12x26

Principle Features

INTRODUCTION

Leader Static Double Regulating Balancing valves are valves designed to ensure proper flow rate is maintained to keep the Heating and cooling system within operating parameters. It equalizes system pressure, creating comfortable thermal conditions in the building while optimizing energy and operating costs. It double regulating feature create constant output from a variable input, the flow rate will be constant and predictable. There are two access points (test cock) that allow to measure the pressure before and after the valve and serve as checkpoints for either manual testing or automatic flow regulator devices.

  • Designed as per BS:7350.
  • Body & Bonnet made of sturdy construction in Ductile Iron.
  • EPDM-coated disc ensures tight sealing.
  • Oblique seat offers good adjustment precision and a resistant lower than the valves with a straight seat.
  • Head losses are small, which for the same size leads to more important flows than those borne by a straight seat valve.
  • Precise double regulation, accuracy of flow measurement is ±5% at the full open position of the valve.
  • Provided with Inlet / Outlet pressure test cocks to measure the pressure before and after the valve.
  • Hand wheel Operated.
  • Flanged ends to DIN 2533 PN16 (RF).

END CONNECTION

  • Flanges as per DIN 2533 PN16 (RF), Drilled.
  • Flange drilling as per other standards also available upon request.

UTILISATION & SERVICE

  • “LEADER” Ductile Iron Balancing Valves are suitable for above-ground installations.
  • Best suited for Water, Ethylene Glycol Mixture, HVAC application.

WORKING PRESSURE

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

TEMPERATURE LIMITS

  • 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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