Marine Manhole Cover and Frame
The ship manhole frame is a structural component that is securely installed or integrated into the ship’s structure. It is typically made of robust materials such as steel or cast iron to withstand the harsh marine environment, including exposure to seawater and heavy loads. The frame provides stability and support for the manhole cover, ensuring its proper function and longevity.
The ship manhole cover is the removable lid or top portion of the manhole assembly on a ship. It is designed to fit securely onto the manhole frame and create a watertight seal when closed. Ship manhole covers are constructed to withstand the dynamic conditions at sea, including rough waves and potential impacts. They are typically made of durable materials such as steel, cast iron, or composite materials, chosen for their strength, corrosion resistance, and ability to maintain a tight seal.
Manhole Cover For Sale
- Standard: ISO5894, CB/T 4392-2014
- Certification: CCS, Gl, Dnv, ABS
- Used for the wartertight and oiltight manhole covers
- Please contact us for all model type
- material: steel, metal, cast iron manhole cover
Marine manhole cover is designed to provide access for construction and maintenance personnel. Once the operation is completed, it is essential for the personnel to close the manhole cover before leaving.
Man Hole Cover Types
- Cast Iron Manhole Covers: Cast iron manhole covers are widely used in marine environments due to their durability, strength, and resistance to heavy loads.
- Composite Manhole Covers: Composite manhole covers, made from materials like fiberglass, resin, and other reinforcing materials.
- Steel Manhole Covers: Steel manhole covers are commonly used in marine applications due to their strength and load-bearing capacity.
- Aluminum Manhole Covers: Aluminum manhole covers are lightweight, corrosion-resistant, and commonly used in marine environments.
- Watertight Manhole Covers: Watertight manhole covers are designed specifically to provide a secure seal against water ingress.
- Quick-Opening Manhole Covers: Quick-opening manhole covers are designed for easy and rapid access to compartments.
Type A Raised Multi Bolts Manhole Cover
Type A marine manhole cover drawing
The CB/T 4392 Type A multi-bolt manhole cover with raised coaming is watertight and oiltight, meeting CB/T 4392 standards. Made of steel with stainless bolts and nuts, it offers customization options for bolt attachment.
Type A marine manhole cover parameter
Type | Nominal Size LXB | L1 | B1 | L2 | B2 | L3 | B3 | S | S1 | Fastener | Weight | |
DIA | QUT | |||||||||||
AA | 450*350 | 470 | 370 | 548 | 448 | 598 | 498 | 4 | 4 | M20 | 18 | 17.4 |
500*400 | 520 | 420 | 598 | 498 | 648 | 548 | 8 | 6 | 35.4 | |||
600*400 | 620 | 420 | 698 | 498 | 748 | 548 | 12 | 10 | 20 | 62.4 | ||
600*450 | 620 | 470 | 698 | 548 | 748 | 598 | 16 | 14 | 22 | 88.7 | ||
800*600 | 820 | 620 | 898 | 698 | 948 | 748 | 24 | 22 | 26 | 199.7 | ||
AB | 800*400 | 820 | 420 | 898 | 498 | 948 | 548 | 20 | 18 | 24 | 134.9 | |
Type B Flush Ship Manhole Cover
Type B Marine Manhole Cover Drawing
- Material: Mild Steel, Stainless Steel
- Bolt & Nut: Stainless steel, bronze, brass
- Type: BA-oblong type, BB-oval type, BC-square type, BD-round type
Type B Marine Manhole Cover Parameter
Type | Nominal Size LXB | L1 | B1 | L2 | B2 | L3 | B3 | S | Fastener | Weight | |
DIA | QUT | ||||||||||
BA | 450*350 | 470 | 370 | 530 | 430 | 590 | 490 | 4 | M20 | 16 | 23.8 |
500*400 | 520 | 420 | 580 | 480 | 640 | 540 | 10 | 18 | 40.1 | ||
800*600 | 820 | 620 | 880 | 680 | 940 | 748 | 18 | 26 | 108.1 | ||
BB | 800*400 | 820 | 420 | 880 | 480 | 940 | 540 | 20 | 26 | 88.9 | |
BC | 600*600 | 620 | 620 | 680 | 680 | 740 | 740 | 22 | 28 | 116.3 | |
Ship manhole cover type B always used as tank top cover, and bulkheads access.
Type BD Marine Manhole Cover Parameter
Type | Nominal Size LXB | D1 | D2 | D3 | S | Fastener | Weight | |
DIA | QUT | |||||||
BD | φ450 | φ470 | φ530 | φ590 | 6 | M20 | 18 | 30.3 |
14 | 47.5 | |||||||
φ600 | φ620 | φ680 | φ740 | 10 | 22 | 56.0 | ||
22 | 96.5 | |||||||
Type C Embedded Manhole Cover For Ship
- Certification: CCS, NK, RS, BV, LR, KR, ABS
- Model Number: Customized and standard
- Test: Hydraulic Pressure Test
Type C Marine Manhole Cover Parameter
Type | Nominal Size LXB | L1 | B1 | L2 | B2 | L3 | B3 | S | Fastener | Weight | |
DIA | QUT | ||||||||||
CA | 450*350 | 570 | 470 | 510 | 410 | 642 | 542 | 4 | M20 | 16 | 47.0 |
600*450 | 720 | 570 | 660 | 510 | 792 | 642 | 12 | 20 | 118.3 | ||
800*600 | 920 | 720 | 860 | 660 | 992 | 792 | 22 | 26 | 227.2 | ||
CB | 800*400 | 920 | 520 | 860 | 460 | 992 | 592 | 12 | 22 | 121.5 | |
18 | 146.7 | ||||||||||
24 | 171.9 | ||||||||||
CC | 450*350 | 560 | 460 | 510 | 410 | 602 | 502 | 6 | 16 | 47.0 | |
600*400 | 710 | 510 | 660 | 460 | 752 | 552 | 12 | 20 | 90.7 | ||
800*600 | 910 | 710 | 860 | 660 | 952 | 752 | 22 | 26 | 196.2 | ||
CD | 800*400 | 910 | 510 | 860 | 460 | 952 | 552 | 24 | 22 | 151.5 | |
Type D Recessed Multi Bolts Manhole Cover
- Type: DA, DB
- Application Type: Water-tight, Oil Tight
- Bolt & Nuts: M20, Stainless steel, bronze, brass
Type D Recessed Multi Bolts Manhole Cover Parameter
Type | Nominal Size LXB | L1 | B1 | L2 | B2 | L3 | B3 | S | Fastener | Weight | |
DIA | QUT | ||||||||||
DA | 450*350 | 570 | 470 | 520 | 420 | 622 | 522 | 4 | M20 | 16 | 27.8 |
8 | 38.0 | ||||||||||
10 | 43.2 | ||||||||||
600*400 | 720 | 520 | 670 | 470 | 772 | 572 | 8 | 20 | 49.1 | ||
16 | 77.2 | ||||||||||
600*450 | 720 | 570 | 670 | 520 | 772 | 622 | 10 | 20 | 58.9 | ||
14 | 73.8 | ||||||||||
800*600 | 920 | 720 | 870 | 670 | 972 | 772 | 12 | 26 | 95.5 | ||
22 | 152.5 | ||||||||||
DB | 800*400 | 920 | 520 | 870 | 470 | 970 | 570 | 14 | 22 | 83.6 | |
20 | 109.4 | ||||||||||
24 | 126.5 | ||||||||||
Gosea Marine offers a wide range of ship manhole covers. Contact us today to get the best price for desired cover!
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[86] 0411-8683 8503
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Address :Room A306, Building#12, Qijiang Road, Ganjingzi
Email : sales_58@goseamarine.com
