Stainless Steel Round Non-Pressure Manhole
Product Description
Product Overview
Introducing the Wenzhou Safety Stainless Steel Co., Ltd.'s masterfully engineered stainless steel round non-pressure manhole, a pinnacle of safety and robust durability for tanks, vessels, and pipelines. Meticulously crafted to offer a flawless, corrosion-resistant access point for inspection and maintenance, this manhole is built from the premium 304/316 stainless steel. Experience its exceptional strength and resilience in even the harshest environments, making it the optimal choice for industries including food processing, chemicals, pharmaceuticals, and water treatment. Designed in accordance with standard atmospheric vessel requirements, its circular structure promises superior sealing performance, effectively eliminating any potential for leaks.
Key Features
Premium Material
- Manufactured from top-tier **304/316 stainless steel**, celebrated for its outstanding resistance to corrosion, impressive high-temperature endurance, and remarkable longevity.
Leak-Proof Seal
- Outfitted with a meticulously crafted flange, incorporating **silicone/fluororubber gaskets** alongside a sturdy multi-bolt locking system, guaranteeing an unequivocal **zero-leak assurance**.
Quick & Easy Operation
- Elegantly designed with a lightweight construction featuring flexible **hinged or bolted cover options**, allowing for **single-person access** and significantly reducing operational downtime.
Safety First
- Promotes safety with an optional **anti-fall mesh** (supporting up to 200kg) and a secure **anti-slip surface finish**, ensuring safe operation across all environments.
Fully Customizable
- Ranging from **DN400-DN800** with provisions for custom sizes, compatible with various **flange standards** (ANSI, DIN, JIS). Tailor it with additional **accessories** such as sight glass and vent valve to precisely meet your requirements.
Applications
- Oil & Gas: Perfectly suited for storage tanks and reactors
- Food & Pharma: Ideal for hygienic vessel cleaning and inspection
- Water Treatment: Indispensable for sewage tanks and reservoir upkeep
- Marine & Power: Optimal for boiler maintenance and pressure vessel access
Why Choose Us
✓ Benefit from our stringent ISO-Certified manufacturing processes
✓ Secure peace of mind with our 1-year warranty and lifelong support
✓ Experience rapid delivery coupled with extensive OEM/ODM services
✓ Obtain complimentary technical consultation and precise CAD drawings
Product Parameters
Material: 304/316 SS (other grades available) |
Size Range: DN400-DN800 (customizable) |
Pressure Rating: Non-pressure (Atmospheric, -0.02MPa to 0.02MPa) |
Sealing Standard: GB/T compliant, leak-tested |
Temperature Range: -20°C to +300°C (gasket material options) |
Detailed Photos






About US






FAQ
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.