 |
| Quantity: | |
|---|---|
DF-430-18
HEE
Details description
Core product
The circular rotating compression type quick opening hatch cover, with "fast opening and closing+reliable sealing" as its core, is suitable for the maintenance needs of low-pressure seals in multiple industries. The structure consists of a cover plate, a compression mechanism, and a sealing element. The rotating pressure rod and central screw achieve quick locking, and the rubber sealing ring ensures sealing effect.
Core application scenarios
Specializing in five major fields including ships, chemical storage and transportation, tank truck transportation, food and medicine, and special equipment, it is the core sealing and maintenance component for cargo oil tanks, storage tanks, tank truck tops, fermentation tanks, and other scenarios, meeting multiple requirements for water tightness, oil tightness, and air tightness.
Core material
Main body (cover plate/pressure rod): Carbon steel (low-cost, high-strength, suitable for ordinary working conditions), stainless steel 304/316L (corrosion-resistant, sanitary grade, suitable for chemical/marine/food scenes), aluminum alloy (lightweight, suitable for ships/special vehicles)
Seals: Nitrile rubber (oil resistant), Fluororubber (high temperature/strong corrosion resistant), Neoprene rubber (seawater/aging resistant)
Fasteners: Stainless steel/galvanized carbon steel, rust resistant
Product advantages
1. Efficient opening and closing: Rotate the pressure rod to lock/unlock without the need to tighten bolts, greatly improving maintenance and loading/unloading efficiency
2. Stable sealing: Circular rubber gasket+uniform clamping force, achieving water tightness/oil tightness/air tightness, and preventing medium leakage
3. Compact and durable: The circular design is evenly stressed, the structure is compact, and it is suitable for small spaces; Easy to replace seals and low maintenance costs
4. Safety adaptation: Some models are equipped with safety interlocks to avoid accidental opening under pressure and meet the safety requirements of multiple working conditions
Product limitations
1. Limited pressure, only suitable for medium and low pressure conditions
2. Rubber seals are prone to aging and need to be replaced regularly
3. Large caliber hatch covers require a high operating torque and are difficult to open and close, with a conventional diameter of ≤ 600mm
4. Carbon steel material is prone to rusting in strong corrosive/marine environments and requires additional anti-corrosion treatment
Applicable value
Balancing opening and closing efficiency with sealing reliability, it is a low-cost and highly adaptable sealing maintenance solution for fields such as ships, chemicals, and transportation. It can flexibly match materials according to working conditions to meet the core requirements of sealing, maintenance, and loading and unloading in different scenarios.
The following are the details of the drawings：
FLUSH WATERTIGHT T-HANDLE HATCH
MODEL NO. | ΦA | ΦB | WT.(lbs) |
| DF-430-18 | 20 3/4" | 18" | 70 |
| DF-430-24 | 26 3/4" | 24" | 120 |
| NO. | Name & Specifications | Qty | Material |
| 1 | HATCH COVER | 1 | STEEL |
| 2 | DECK RING | 1 | STEEL |
| 3 | GASKET | 1 | NEOPRENE |
| 4 | STRONGBACK | 1 | STEEL |
| 5 | TEE HANDLE | 1 | STAINLESS |
Leakage test: Pressure 0.04MPa
Other optional extras include: hot dipped galvanized, stainless steel construction, and customing heights
