Vacuum Relief Valve - High Velocity Relief Valve - Hi-sea

Vacuum Relief Valve

Vacuum Relief Valve

Vacuum Relief Valve

1. Application

The vacuum relief valve generally used in the relief system of the oil ship and chemical ship according to the current regulations:IMO and IBC. The purpose of the high velocity valve is to provide automatic control of pressure differentials during liquid cargo ship loading, voyage, ballasting and de-ballasting without any manual operation, also, it provides auto-protection against fire and explosions on desk.

2. Material

valve body: stainless steel

valve seat: stainless steel 0Cr18Ni9  SUS304

flame screen: stainless steel 00Cr17Ni14Mo2  SUS316L

Your special material requirement can be met, such as cast steel, stainless steel 304, stainless steel 316L etc.

3. Nominal Size & Pressure

diameterDN50—DN250

pressure: (1) oil tanker: -3.5Kpa to 14Kpa (2) chemical tanker: -3.5Kpa to 20Kpa.

4. Features

(1). Full lifting and high flow capacity.

(2). No peak pressure over opening pressure.

(3). High quality.

5. Specification(mm)

Serial No.

DN

D2

D1

D

L

H

Flange Hole

1

50

90

110

140

255

485

4xφ14

2

65

110

130

160

255

485

4xφ14

3

80

128

150

190

285

535

4xφ18

4

100

148

170

210

285

565

4xφ18

5

125

178

200

240

380

665

8xφ18

6

150

202

225

265

385

710

8xφ18

7

200

268

295

340

455

850

8xφ18

8

250

320

350

395

460

860

12xφ22

6. IACS Certificate: CCS, ABS, BV, LR, RINA


7. The product of Vacuum Relief Valve in the factory:

Vacuum Relief Valve in factory

Contact with us now

Our mail: manager@hiseamarine.com

replace