Sanitary Round Manhole Cover (Manway)
KINGMAN Sanitary Round Manhole Cover is an atmospheric hygienic circular manway designed for non-pressure sanitary tanks. Manufactured from high-grade stainless steel with mirror finish, it uses a hinged flip-top design with a single cross bar quick clamping mechanism for simple opening and closing. It provides easy access for tank inspection, cleaning and manual operations. Ideal for atmospheric storage tanks in food, beverage and pharmaceutical hygienic process systems.
Specifications
| Parameter | Value |
|---|---|
| Product Type | Sanitary Round Manhole Cover (Manway) |
| Size Range | 200mm–800mm |
| Material | 304 / 316L stainless steel |
| Seal Material | EPDM / FKM (Viton) / Silicon / NBR |
| Surface | Inner surface: Ra ≤0.5μm , Outer surface:Ra ≤0.8μm Pressure rating 0 ~ 6 bar available Shape type Round, Square and Elliptical available |
| OEM | any special OEM services |
| Certification | ISO 9001, 3A,CE,EAC,health wading license |
Dimensions
| Size | OD | H | t | t1 |
|---|---|---|---|---|
| 250X350 | 250X350 | 100 | 2.5 | 2 |
| 300X420 | 300X420 | 100 | 3 | 2 |
| 330X430 | 330X430 | 100 | 3 | 2 |
| 350X450 | 350X450 | 100 | 3 | 2.5 |
| 430X530 | 430X530 | 100 | 3 | 2.5 |
Features
- 1. Specially designed for atmospheric sanitary tanks, adopting hinged flip cover and cross-bar quick-lock structure for tool-free fast opening and closing, ideal for frequent inspection and maintenance.
- 2. High-precision mirror polishing creates a flat, smooth and dead-zone-free inner cavity, minimizing material adhesion and bacterial growth to maintain high-purity sanitary environment.
- 3. Flexible sanitary gasket features excellent fitting and elasticity, providing stable and tight sealing under atmospheric pressure to isolate external dust, moisture and contamination.
- 4. Compact and lightweight structure with small installation space, suitable for top mounting and side mounting on various atmospheric storage tanks, mixing tanks and batching tanks.
- 5. Excellent resistance to acid, alkali and cleaning solvents, compatible with long-term CIP online cleaning to sustain tank sanitation.
- 6. Easy disassembly and maintenance with low operating cost, convenient for gasket replacement and routine upkeep, perfectly adapting to continuous hygienic production lines.
Working Principle
Sanitary Round Manhole Cover tightly presses the hinged cover against the tank flange through cross-bar quick-lock mechanism, evenly compressing the sanitary gasket to form a closed hygienic sealing interface and preventing external impurities, moisture and dust from contaminating internal materials. For cleaning, inspection and internal operation, release the cross bar to flip open the cover and open the tank access quickly. After operation, close and lock the cover to maintain a closed, clean and hygienic tank environment for continuous atmospheric sanitary production.
Why Choose KINGMAN
Start with Samples
Sample and small-quantity orders are available, giving tank builders and project buyers a lower-risk way to confirm dimensions and workmanship first.
Standard Orders Move Faster
Available standard sanitary components can be prepared in about 7 working days when replacement or project schedules call for quicker delivery.
Covered After Delivery
KINGMAN provides a 1-year international warranty and lifetime technical support, with replacement or spare-part support for qualifying non-human damage.
