Control valves

Pressure reducing/surplussing valves

Dimensions / weight (approximate) in mm and kg

A

Actuator type

Flanged

1

2

3

4

5

Valve

EN 1092

weight

Size

PN16andPN25

B

C

B

C

B

C

B

C

B

C

DN15

130

DN20

150

DN25

160

DN32

180

DN40

200

DN50

230

DN65

290

DN80

310

DN100

350

740

Actuator weight

488

488

497

497

511

511

588

600

250

250

250

250

250

250

250

250

423

423

432

432

446

446

523

535

168

408

143

9.4

168

408

143

10.2

168

417

143

12.0

168

417

143

16.2

168

431

143

17.4

168

431

143

19.5

168

508

143

26.8

168

520

143

32.0

668

For full details see the Installation and Maintenance Instructions (IM-P204-03) supplied

with the product.

Installation note:

4.6.119

Caution - To protect the actuator diaphragm on steam applications a WS4 series

water seal pot must be installed in the downstream pressure signal line to the

actuator. Refer to TI-S12-03 for details.

The valve should be mounted vertically downwards in a horizontal pipeline with the direction

of flow as indicated by the arrow on the valve body. For applications with downstream

temperatures below 125°C the valve can alternatively be mounted vertically upwards.

How to select a DLV direct acting pressure reducing valve:

168

45.2

304

Note: To calculate the total weight of the unit add the valve and actuator weights together.

Connection type

Valve type

Body material

Spring setting range

DN15, DN20, DN25, DN32, DN40, DN50,

DN65, DN80 and DN100

DN25

Option

Flange rating

PN16

PN25

PN25

C

12.3

6.5

3.9

2.5

2.6

Safety information, installation and maintenance

A

DLV

DLV

B

7 = SG iron

1 = DN100

2=

DN15 to DN50

DN65 to DN80

3= DN100

4=

DN15 to DN80

DN100

5= DN15 to DN80

Blank = EPDM diaphragm

0.5 - 1.5

0.2 - 1.8

0.4 - 1.8

1.0 - 4.0

1.0 - 5.5

3.5 - 13

4.0 - 13

7

bar g

bar g

bar g

bar g

2

bar g

bar g

bar g

WS4 or WS4-3 (see Safety information,

installation and maintenance above)

BSP, NPT or butt weld (BW)

Selection example: DN25 DLV 7 2

flanged

Water seal pot

Connections

WS4

BSP

PN25

plus

WS4 water seal pot having screwed

BSP connections.

How to order

Example: 1 off Spirax Sarco DN25 DLV72 direct acting pressure reducing valve having flanged PN25 connections plus WS4 water

seal pot having screwed BSP connections.

TI-P204-04 CH Issue 7

DLV7 SG Iron Pressure Reducing Valves

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