Specifications:

• Marine weathertight single-leaf steel doors can be customizedaccording to customer's requirements.

Description:

Marine steel doors
Technical requirements
Gate material:
Part Name Materials
 Name Card number Standard No.
Door panels Structural steel forshipbuilding Q235-A GB700-88
Ribs   
Door frame   
Hand Quality carbon structural steel 25 GB699-88
Seal Packing  
Hinges Carbon Structural Steel Q235-A GB700-88
Pin Stainless steel 1Cr18Ni9Ti GB1220-84
2. Door sealing rubber filler for the oil aging, the tearing stressshould not be less than 15MPa, the aging factor of 0.8, hardness is30-40. And should have product certificate.
3. Door, door frame height, width deviation of ± 2mm, distortiondegree (diagonal midpoint of the range) deviation of not more than2mm.
4. Door, door frame straightness shall not exceed 1mm / m.
5. The door closed (rolled buckle to lease block center) door edgeshould be pressed into the filling evenly, pressing into the depthof 2mm, the continuous contact printing width B ≥ 5mm.
6. All the parts, Chun has good interchangeability.
7. Doors, door frames and accessories, does not allow burr andcrack disparity, shape should be uniform, no significant surfacedefects.
8. Doors, door frames and accessories should be rust-proof surfacetreatment (pickling, shot blasting, or manual method of rust), toremove rust and dirt oxide after treatment should meet the GB8923in ASa2.5 level requirements,  anti-rust primer and paintedonce.
9. The door assembly, the response frame contacts with theDepartment for packing density test, the inner surface after thetest should be no stains or drops of water to pass.
10. The door is made, it should ensure that the normally closed,open and flexible, without tight too loose phenomenon, someactivities require a neutral lubricant coating.
11. Every door should be fitted Φ30, L ≈ 300mm steel tube rollingbuckle handle sleeve 1, and needed to install lock.
 test methods
A, B, C Class bulkheads or doors installed in the simulation ofship, the application of the nozzle diameter is not less than12.5mm, flushing pressure of not less than 0.25MPa, flushingdistance of not more than 1.5m, door to flush. D grade doorshould be no pressure test requirements of top-down watering.
Test Specifications
1. Products before delivery should be required that the fans wereby visual inspection.
2. Manufacturer should be required on the A, B, C grade doors toflush test, water spray on the D level portal for test after testshall meet the requirements.
3. Accept the test gate, if the test failure was found to allow theamended before trial, re-testing before they can bemanufactured.
4. All products passed the inspection, shall issue certificates andship inspection certificate, together with the report of the mainmaterial of the material.