GB/T 33572-2017 in English
VALIDManual hinged watertight door
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 33572-2017 |
| Document status: | VALID |
| Title in English: | Manual hinged watertight door |
| Title in Chinese: | 手动铰链式耐压水密门 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-05-12 |
| Implemented on: | 2017-12-01 |
| ICS Classification: | 47.020.50-Deck equipment and installations |
| Chinese Classification: | U26-Deck fittings |
| Professional Classification: | GB-National Standard |
| Related Keywords: | pressure-resistant watertight door
pressure-resistant watertight door gb/t watertight door system watertight door introduction manually tightness test watertight doors |
| Related Topics: | watertight door
Manually hinged pressure-resistant watertight door withstand voltage hinge Hinge GB/T 33572-2017 GBT33572 GB/T 33572-2017 cabinet door hinges Watertight pressure chamber test |
《GB/T 33572-2017手动铰链式耐压水密门》由TC129（全国船舶舾装标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Manually hinged pressure-resistant watertight door GB/T 33572—2017 Standard Interpretation
1. Background and significance of standard formulation
GB/T 33572—2017 "Manually hinged pressure-resistant watertight door" standard is to standardize the design, manufacturing and acceptance requirements of watertight doors used in marine engineering, special ships and other fields. With the development of the shipbuilding industry, the requirements for watertight performance are increasing day by day. The formulation of this standard provides an important basis for ensuring the safety of ships.
2. Classification and structural type of watertight doors
Watertight doors are divided into right-opening type (R type) and left-opening type (L type) according to the opening direction, which are suitable for different installation requirements. Its typical structure includes key components such as door frame, door panel, locking mechanism, and sealing strip.
| Item | Right-opening (R type) | Left-opening (L type) |
|---|---|---|
| Opening direction | Seeing from the outside, the hinge is on the right | Seeing from the outside, the hinge is on the left |
| Installation requirements | Applicable to right-side channel requirements | Applicable to left-side channel requirements |
3. Materials and manufacturing requirements
The main materials of watertight doors include low-alloy structural steel, high-quality carbon structural steel and stainless steel, etc., to ensure their strength and pressure resistance. Table 2 lists the material requirements and standards for key components.
4. Strength and tightness test
Watertight doors must pass strength and tightness tests. The strength test requires that they remain free of deformation for 15 minutes at the maximum hydrostatic working pressure plus 0.05 MPa, while the tightness test requires that they remain free of leakage within 3 minutes at a pressure of no less than 0.2 MPa.
5. Implementation suggestions and precautions
Case analysis: an example of an offshore engineering application
In actual applications, an offshore platform uses a watertight door system that complies with the GB/T 33572-2017 standard. Its pressure resistance and reliability are ensured by strictly controlling material selection and manufacturing processes.
Implementation suggestions
- Select materials and manufacture in strict accordance with standard requirements
- Regularly check the wear of sealing strips and hinges
- Carry out comprehensive tests before installation to ensure that they meet the requirements of tightness and strength
- Acceptance shall be carried out in accordance with CB/T4000—2005 quality standards
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