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Pressure Reducing Valve

Pressure Reducing Valve
Pressure Reducing Valve
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Product Code : 26
Product Description

Pressure Reducing Valve

DESCRIPTION
WJ' CAST IRON PILOT CONTROLLED METALLIC DIAPHRAGM TYPE PRESSURE REDUCING VALVE with Flanged Ends to BS-10 Table 'F' are suitable for 185 PSIG (13 Kg/
Cm2) Max. working Pressure at 428°F (220°C) Temp. and are Tested to 370 PSIG (26 Kg/Cm2) Hydrostatic. These Valves are available in three Reduced Pressure. Ranges of 5/60, 20/80 and 40/125 on the down stream side.

INSTRUCTIONS FOR INSTALLATION

  • The Valves should be installed in a horizontal pipe line.
  • Stop valves should be installed at inlet & outlet sides of reducing valve.
  • A safety valve should be installed on the down stream side of reducing valve.
  • A steam trap & a stainer should be installed on the upstream side just before the Reducing valve.
  • Clean all scale and jointing material from the pipe line before installing the reducing valve.


TESTING AND CERTIFICATION
All Reducing Valves are Tested at Double the Max. Working Pressure. Each valve is supplied with IBR Test Certificate in Form III-C issued by The Director of Boilers, Punjab.

Technical Specifications

Dimensions

Nominal Size

A

B

C

D

E

25mm (1'')

168

120.7

12.7

130

200

40mm (1 1/2'')

203

139.7

15.88

140

235

50mm (2'')

248

165.1

19.05

160

300

65mm (2 1/2'')

280

184.15

19.05

180

345

80mm (3'')

300

203.2

19.05

200

350



Materials

Name of Part

Material

Specification

Body

C.I.

IBR-86-93 Gr.A

Bonet

C.I.

IBR-86-93 Gr.A

Spring Chamber

C.I.

IBR-86-93 Gr.A

Locking Guard

C.I.

IBR-86-93 Gr.A

Diaphragm Chamber

C.I.

IBR-86-93 Gr.A

Bottom Diaphragm Chamber Cover

C.I.

IBR-86-93 Gr.A

Studs with Nuts

M.S.

----

Studs with Nuts

M.S.

----

Bolts with Nuts

M.S.

----

Gasket

C.A.F.

IS-2712 Gr. W/1

Gasket

C.A.F.

IS-2712 Gr. W/1

Lower Diaphragm

S.S.

AISI-304

Upper Diaphragm

S.S.

AISI-304

Lower Spring Disc.

S.S.

AISI-410

Upper Spring Disc.

S.S.

AISI-410

Spring

Carbon Steel

IBR-307-314

Diaphragm Disc.

Bronze

IBR-282 (a) IV Gr. B

Locking Nut

M.S.

----

Extension Stem

S.S.

AISI-410

Guide Sleeve

Bronze

IBR-282 (a) IV Gr. B

Seat Ring Guide

Bronze

IBR-282 (a) IV Gr. B

Body Seat Ring

S.S.

AISI-410

Valve Disc

S.S.

AISI-410

Disc Spring

S.S.

AISI-302

Pilot Nut

Extruded Brass Rod

----

Pilot Spring

S.S.

AISI-302

Pilot Valve

S.S.

AISI-304

Pilot Body

S.S.

AISI-410

Pilot Stem

S.S.

AISI-410

Bush

S.S.

AISI-410

Pilot Stem Cap

Bronze

IBR-282 (a) IV Gr. B

Nipple

S.S.

AISI-410

Spring Adjusting Screw

M.S.

----

Pin

M.S.

----

Locking Lever

M.S.

----

Side Plug with Copper Washer

Bronze

IBR-282 (a) IV Gr. B

Pipe Assembly

Copper

----


CAPACITIES OF 'WJ' PRESSURE REDUCING VALVES FOR STEAM IN Kg. PER HOUR

SET PRESSURE

Kg./Cm2

OUTLET PRESSURE

Kg./Cm2

VALVE SIZE

25 mm (1'')

40 mm (1 1/2'')

50 mm (2'')

65 mm (2 1/2'')

80 mm (3'')

2

0.75

190

520

920

1360

2000

4

1.5

300

820

1470

2150

3100

2.75

275

740

1290

1950

2800

6

2.0

385

1020

1850

2720

3900

3.5

350

920

1650

2420

3530

7

3.5

490

1275

2275

3365

5000

4

475

1230

2190

3280

4790

6

375

980

1750

2560

3740

9

4

600

1590

2820

4140

6140

6

555

1485

2620

3840

5650

7

465

1230

2180

3180

4770

10

5

710

1800

3250

4950

7000

7

650

1720

3035

4520

6550

9

500

1300

2550

3450

4950

13

6

850

2210

3900

5720

8230

7

810

2180

3760

5720

8000

9

715

1920

3400

5050

7230

10

550

1465

2610

3840

5480


SIZE OF VALVES

ORIFICE DIA

SET PRESSURE (Kg/Cm2)

3.5

7.0

10.54

25 mm (1'')

20 mm

600

1075

1550

40 mm (1 1/2'')

28 mm

1179

2109

3050

50 mm (2'')

38 mm

2172

3884

5618

65 mm (2 1/2'')

48 mm

3467

6198

8965

80 mm (3'')

57 mm

4889

8740

12647

100 mm (4'')

70 mm

7333

13182

19065




NETA VALVES PVT. LTD.
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NETA VALVES PVT. LTD.
A-11, Industrial Focal Point, Jalandhar - 144004, Punjab, India
Phone :+918068341392
Fax :91-181-2602458/2602457
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