High Velocity Velief Valve with nate coating
1. Application
High velocity velief valve with nate coating usually used in 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. When the ship is carrying some high-strength corrosion products, the body of the high speed air valve should be coated with the corresponding anti-corrosion material.
2. Material
valve body: stainless steel
valve seat: stainless steel 0Cr18Ni9 SUS304
flame screen: stainless steel 00Cr17Ni14Mo2 SUS316L
The material of this product can be made to order, for example: cast steel, stainless steel 304, stainless steel 316L etc.
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). The valve body shall be coated with antiseptic material.
(2). Full lifting and high flow capacity.
(3). Reliable operations reduces vapor losses.
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 |
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