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VALVES Cast Iron Reflux Valves (Swing Type)

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Reflux Valves

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Application

Reflux valves are used in pipe lines to reduce water hammer and to prevent back flow of water to the pumps from rising mains.

These valves are suitable for handling clear water having turbidity of 3000 ppm maximum within the limits of the working pressure mentioned overleaf suitable for temperature up to 50oC.


Accessories Available

Dashpot Arrangement

Scour Plate

Counter Weight arrangement

Drain Plug

Bypass Arrangement

Bill of Material
 

Item No.

Item Qty.

Name of Component

Material

Specification

Component
Drg. No.

1.

1

Body

G. Cast Iron

IS:210 FG 200

VV/CH/BD/

2.

2

Body Ring

Leaded Tin Bronze

IS:318 LT B2

VV/CH/BR/

3.

2

Flap Ring

Leaded Tin Bronze

IS:318 LT B2

VV/CH/FR/

4.

1

Flap

G. Cast Iron

IS:210 FG 200

VV/CH/F/

5.

1

Flap Pin

Stainless Steel

IS:1570 PARTV

VV/CH/FP/

6.

1

Hinge

G. Cast Iron

IS:210 FG 200

VV/CH/H/

7.

As Rqd.

Bolt With Net

Carbon Steel

IS:1367 CL-4

STD

8.

1

Hinge Pin

Stainless Steel

IS:1570 PARTV

VV/CH/HP/

9.

1

Flap Retaining Nut

Stainless Steel

IS:1570 PARTV

STD

10.

1+1

Gasket

Rubber

IS:638 TYPE B

VV/CH/HP/

11.

1

Cover

G. Cast Iron

IS:210FG 200

STD

12.

1

Hing Pin Retaining Plug

Carbon Steel/Leaded Tin Br.

IS:7274/IS:318LTB2

STD

13.

1

Air Release Plug

Carbon Steel/Leaded Tin Br.

IS:7274/IS:318LTB2

STD

14.

2

Packing

Rubber

IS:638 TYPE B

STD

15.

1

Split Pin

Stainless Steel

IS:1570 PARTV

STD

Salient Feature

Bronze / Stainless Steel Trim

Rubber Faced Flap

Compact Design

Renewable Parts

Body Seat Ring Sleeve Type

Perfect Interchangeability of components

Seat Taper Type

Spares Available

 

Dimension Table

Size

ΦB
1.0

L
2.0

ΦD
2.0

T
+2.0
-0.0

Drilling Detail

PCD
1.0

X
(Size x Length)

Y
(NO)

ΦA
2.0

ΦE
5.0

ΦF
5.0

ΦH
5.0

ΦM
0.5

N

ΦP(PCD)
1.0

50

50

200

165

16

19

4

125

130

1/2"x2"

6

158

10

10

163

65

65

240

185

16

19

4

145

139

1/2"x2"

6

165

10

10

170

80

80

260

200

21

19

4

160

164

1/2"x2"

6

191

10

10

180

100

100

300

220

22

19

4

180

204

1/2"x2"

8

232

12

10

220

125

125

350

250

22.5

19

8

210

209

1/2"x2"

8

235

12

10

235

150

150

400

285

23

23

8

240

251

5/8"x3"

10

287

16

12

275

200

200

500

340

24.5

23

8

295

306

5/8"x3"

10

340

20

16

320

250

250

600

395

26

23

12

350

361

5/8"x3"

14

395

22

16

300

300

700

445

27.5

23

12

400

411

5/8"x3"

14

445

25

16

 

Test Pressure Table

PN Rating

Valve Shell Test

Valve Seat Test

Pressure
(KG/CM)

Duration
(Minute)

Pressure
(KG/CM)

Duration
(Minute)

PN 1.0

15

5

10

2

PN 1.6

24

5

16

2

 

Notes

All Dimensions are in MM Except hardware.

Tolerance in height 5.0MM.

Flanges details are as per IS : 1538 Flanges drilling as per other std can be provided.

Valves are designed as per IS : 5312 Part l Hydrostatic Pressure Table as per IS : 5312.

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