Marine Cast Steel High Velocity Relief Valve - High Velocity Relief Valve - Hi-sea

Marine Cast Steel High Velocity Relief Valve

Marine Cast Steel High Velocity Relief Valve

Marine Cast Steel High Velocity Relief Valve

1. Application

Marine cast steel high velocity relief valve is generally used in the relief system of the oil tanker and chemical tanker. 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 deck.

2. Material

valve body: cast steel

valve seat: stainless steel 0Cr18Ni9  SUS304

flame screen: stainless steel 00Cr17Ni14Mo2  SU316L

remarks: The materials mentioned before are basic materials, ship-owners can choose better materials, such as SUS304, SUS304L, SUS316L.

3. Nominal Size & Pressure

diameter: DN50—DN250

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

4. Features:

(1). No peak pressure over opening pressure.

(2). Full lifting and high flow capacity.

(3). High quality.

5. Specification(mm)

DN

D2

D1

D

L

H

Flange Hole

250

320

350

395

460

860

12 x φ22

200

268

295

340

455

850

8 x φ18

150

202

225

265

385

710

8 x φ18

125

178

200

240

380

665

8 x φ18

100

148

170

210

285

565

4 x φ18

80

128

150

190

285

535

4 x φ18

65

110

130

160

255

485

4 x φ14

50

90

110

140

255

485

4 x φ14

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


7. Marine Cast Steel High Velocity Relief Valve in factory:

Marine Cast Steel High Velocity Relief Valve in factory

Contact with us now

Our mail: manager@hiseamarine.com

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