Stainless Steel Round Non-Pressure Manhole
Product Description
Product Overview
Step into the future of access solutions with our Stainless Steel Round Non-Pressure Manhole, a beacon of excellence in safety and durability for tanks, vessels, and pipelines. With a meticulous design that ensures seamless, corrosion-resistant accessibility for all your inspection and maintenance needs, this manhole is the epitome of quality. Forged from premium 304/316 stainless steel, it promises exceptional strength and resilience, even in the most challenging environments, making it the perfect choice for industries spanning food processing, chemicals, pharmaceuticals, and water treatment. Engineered to align with standard requirements for atmospheric vessels, its circular design guarantees superior sealing performance, effectively eradicating any risk of leaks.
Key Features
Premium Material
- Crafted from high-grade **304/316 stainless steel**, renowned for its superb corrosion resistance, impressive high-temperature tolerance, and enduring durability.
Leak-Proof Seal
- Equipped with a meticulously engineered flange, featuring **silicone/fluororubber gaskets** and a robust multi-bolt locking system, ensuring an unbeatable **zero-leak guarantee**.
Quick & Easy Operation
- Designed for effortless use with a lightweight structure offering flexible **hinged or bolted cover options**, facilitating **single-person access** and significantly minimizing operational disruptions.
Safety First
- Safety takes precedence with an optional **anti-fall mesh** (load capacity: 200kg) and a **secure anti-slip surface finish**, ensuring safe operations across all working conditions.
Fully Customizable
- Available in **DN400-DN800** with custom size options and compliance with various **flange standards** (ANSI, DIN, JIS). Enhance usability with additional **accessories** such as sight glasses and vent valves tailored to your specific needs.
Applications
- Oil & Gas: Perfect for storage tanks and reactor applications
- Food & Pharma: Ideal for hygienic vessel cleaning and comprehensive inspection
- Water Treatment: Crucial for the maintenance of sewage tanks and reservoirs
- Marine & Power: Indispensable for boiler maintenance and pressure vessel access
Why Choose Us
✓ Leverage our ISO-Certified manufacturing excellence for superior quality
✓ Enjoy unparalleled peace of mind with our 1-year warranty and ongoing support
✓ Benefit from swift delivery and comprehensive OEM/ODM services tailored to your needs
✓ Take advantage of free technical consultation and precise CAD drawings to optimize your project
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.