UK Product Handbook 2026 - Volume 1

Control systems Pressure reducing/surplussing valves

4

Dimensions (approximate) in millimetres

Flanged

Actuator type

EN 1092 PN25

ASME 150

Size

1

2

3

4

5 + 6

A1

A1

B

C

B

C

B

C

B

C

B

C

DN15

130

127

537

305

511

250

426

208

426

168

411

143

DN20

150

143

537

305

511

250

426

208

426

168

411

143

DN25

160

153

546

305

520

250

435

208

435

168

420

143

DN32

180

176

608

305

582

250

497

208

497

168

482

143

DN40 DN50 DN65 DN80 DN100

200

198

608

305

582

250

497

208

497

168

482

143

230

229

611

305

585

250

500

208

500

168

485

143

290

295

633

305

607

250

522

208

522

168

507

143

310

314

639

305

613

250

528

208

528

168

513

143

350

350

744

305

718

250

633

208

633

168

618

143

A1

4.6 55

B

C

DRV with flanged connections and Type 1 / 1N or 2 / 2N actuator

Type 3 / 3N or 4 / 4N actuator arrangement

Type 5 / 5N actuator arrangement

TI-P204-01 CTLS Issue 15

Page 9 of 10

DRV7 and DRV7G SG Iron Pressure Reducing Valves

Powered by