F11 WAFER BUTTERFLY VALVE

Fig No.: F1125 (PN25)

FEATURES & SPECIFICATIONS

  • Higher strength for disc with pinned single shaft ensure optimal alignment.
  • Centrally mounted disc and hydrodynamic design minimize pressure loss.
  • Can be installed at horizontal or vertical pipe line.
  • Phenolic backed rubber seat is non-collapsible, stretch resistant and easily replaceable.
  • Excellent flow characteristic with flow in either direction.
  • Design conforms to BS EN 593 / BS 5155 / MSS SP-67 / API 609.
  • Precision machining of disc for low operating torque.

NSF, WRAS Approved

Categories: ,

TECHNICAL SPECIFICATIONS

Size DN50 … DN600
Body Design Wafer
Working Pressure 25bar
Shell Testing Pressure (x1.5) 37.5bar
Seat Testing Pressure (x1.1) 27.5bar
Working Temperature -20°C…110°C (EPDM Seat)
-10°C…80°C (NBR Seat)
5°C…120°C (PTFE Seat)
-10°C…135°C (FPM Seat)
Applicable Medium Water, Oil, Gas
Operator Lever, Wormgear, Electric Actuator
Connection BS 4504 PN25,
EN1092-2 PN25,
JIS B2239 20K,
ANSI Class 150
Optional Accessories Chain Wheel, Limit Switch
  • WAFER BUTTERFLY VALVE
  • Fivalco wafer

WAFER BUTTERFLY VALVE

Description

Most wafer butterfly valves are engineered with 4 holes that align with the related pipeline. | Fivalco wafer

The valve is designed to clamp among flanges on your pipework. | Fivalco wafer

Most wafer butterfly valves shape the bulk of flange standards. The rubber or EPDM valve seat creates an exceedingly robust seal among the valve and flange connection. | Fivalco wafer

Material Specification

Body Ductile Iron
Stainless Steel 304
Stainless Steel 316
Disc Ductile Iron
Aluminium Bronze
Stainless Steel 304
Stainless Steel 316
Seat EPDM / NBR / PTFE (Teflon) / FPM (Viton)
Stem Stainless Steel 410
Stainless Steel 431
Stainless Steel 316
Taper Pin Stainless Steel 316
Stainless Steel 410
O-Ring NBR
Bushing PTFE

VALVE COEFFICIENT

DN (mm)

(inch)

 50

2

 65

2 1/2

 80

3

 100

4

 125

5

 150

6

 200

8

 250

10

 300

12

350

14

 400

16

 450

18

 500

20

 500

20

600

24
Cv 135 220 302 600 1022 1579 3136 5340 8250 11917 16388 21705 27908 35170 43116

DIMENSIONS VALVE BODY

DN (mm)

(inch)

 50

2

 65

2 1/2

 80

3

 100

4

 125

5

 150

6

 200

8

 250

10

 300

12

 350

14

400

16

 450

18

 500

20

 550

22

 600

24
A 68.6 76 99 119 129 142 176 209 248.5 272 333 364 389 433 453
B 141.2 150.4 156.5 168 186.5 205.7 230.6 269.9 327.8 368 400 422 480 533 562
C 22 22 22 25 25 25 25 27 27 40 52 52 64 70 70
L 42 45 45 51 55 55 60 67 76 76 102 114 127 151 151

Note : Mono flange for DN250 … DN600.

DIMENSIONS - VALVE OPERATOR

Malleable Iron / Stainless Steel Lever.
Stainless Steel 304 Top Indicator Plate.

DN (mm)

(inch)

 50-150

2-6

 200

8
A 266 357
B 110 163

 

Cast Iron 1 – Stage Worm Gear and Handwheel
Carbon Steel Gear Box Shaft
Valve Diameter H ø  L1 L2 L3
DN40 – DN150 70 150 52 118 129
DN200 – DN250 80 280 75 191 171
DN300 – DN350 80 280 80 186 198
DN400 – DN450 99 400 125 273 280

 

Cast Iron 2 – Stage Worm Gear and Handwheel
Carbon Steel Gear Box Shaft
Valve Diameter H ø L1 L2 L3 L4
DN400 – DN500 125 285 107 260 175 107
DN600 136 385 131 285 193 131

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