News

You are here: Home » Products » Marine Ventilation System » Marine Mushroom Ventilators » Marine Mushroom Ventilators for Axial Fan Type C CB/T 295-2000 and CB/T 4444-2017

Product

Share to:

Marine Mushroom Ventilators for Axial Fan Type C CB/T 295-2000 and CB/T 4444-2017

Brand: DEYUAN MARINE
Type: Mushroom
Standard: CB/T 295 or CB/T 4444
Model: Type C
Purpose: Cabin ventilating
Operating type: Top outside above axial fan
Nominal Diameter: 250~1500
Vent Head: Grade A marine steel
Vent Pipe: Carbon steel Q235A
Availability:

Product Description

Marine Mushroom Ventilators for Axial Fan Type C CB/T 295-2000 and CB/T 4444-2017


Mushroom Ventilator is installed on deck for natural ventilation or mechanical ventilation devices .

CB/T295 Mushroom Ventilation is generally used for kitchen and accommodation of ventilator regulating screw, simply turn adjusting handwheel indoors can reach the purpose of adjusting the opening size.

CB/T 4444-2017 is a new edition of CB/T 295-2000, main difference of them are weight of each model.


Process requirements

1. Surface: should be flat and smooth, without sharp edges, distortion, or skew.

2. Size error:  ±3mm, and the deviation of the verticality is 2/h1000 (h is the height of the ventilator cylinder)

3. The welding surface: free of cracks, slag inclusions, burn-through, and unfused defects.

4. The opening of the weather-tight cover of the fungus-shaped ventilator for ships should be flexible, and the movable part should be coated with neutral lubricating grease.

5. Derusting: the internal and external surfaces of the steel parts of the fungus-shaped ventilating cap should reach the Sa2 level or St2 level specified in GB/T8923, and then two antirust primers.

Type C CBT 295-2000 Mushroom ventilator-DEYUAN MARINE_00

Fig.1 CB/T 295-2000 Type C


Type C CBT 4444-2017 Mushroom ventilator-DEYUAN MARINE

Fig.2 CB/T 4444-2017 Type C


Note: the height of air pipe is decided by customer.


Obviously, type C mushroom ventilator's opening & closing is operating from top outside and will be installed above an axial fan(flange matched).


Type C CB/T 295-2000 Models:


Nominal Diameter
DN
D1 D2 H H1 H2 d t Weight
kg
250 440 200 220 90 210 Tr24x5-LH 6 62
300 530 265 77
350 620 310 Tr30x6-LH 96
400 710 290 345 105 230 118
450 800 375 8 147
500 890 320 405 Tr40x7-LH 179
550 980 435 207
600 1050 470 120 270 223
650 1160 500 249
700 1240 520 274
750 1320 540 309
800 1410 560 140 320 359
850 1500 580 408
900 1580 360 600 Tr46x8-LH 434
950 1670 620 455
1000 1760 640 530
1100 1930 680 601
1200 2100 720 689
1300 2270 760 761
1400 2440 400 800 350 939
Note:the weight is of the ventilator only, not including air pipe


Type C CB/T 4444-2017 Models:

Nominal Diameter
DN
D1 D2 H H2 d t Weight
kg
250 440 200 220 90 Tr30x6-LH 9 35
300 530 265 49
350 620 310 Tr36x6-LH 67
400 710 290 345 105 10 88
450 800 375 111
500 890 320 405 Tr40x7-LH 136
550 980 435 163
600 1050 470 120 192
650 1160 500 223
700 1240 520 256
750 1320 540 291
800 1410 560 140 328
850 1500 580 367
900 1580 360 600 Tr46x8-LH 408
950 1670 620 451
1000 1760 640 496
1100 1930 680 592
1200 2100 720 691
1300 2270 760 493
1400 2440 400 800 896
1500 2630 840 160 Tr50x8-LH
998
Note:the weight is of the ventilator only, not including air pipe

For more types and models of marine ventilators, pls do not hesitate to contact us in any way.

Previous: 
Next: 
Product Inquiry

Products

Call Us
+86-756-8301004