Stainless Steel Round Non-Pressure Manhole
Product Description
Product Overview
Introducing our expertly manufactured stainless steel round non-pressure manhole, a symbol of the highest standards in safety and durability for tanks, vessels, and pipelines. This meticulously designed manhole delivers seamless, corrosion-resistant access for inspection and maintenance needs. Constructed from top-tier 304/316 stainless steel, it boasts remarkable strength and resilience even in the harshest conditions. This makes it the ideal solution for industries such as food processing, chemicals, pharmaceuticals, and water treatment. The design is aligned with standard requirements for atmospheric vessels and features a circular structure that ensures unparalleled sealing performance, effectively eliminating any risk of leaks.
Key Features
Premium Material
- Created from the finest **304/316 stainless steel**, celebrated for its outstanding corrosion resistance, remarkable high-temperature endurance, and lasting durability.
Leak-Proof Seal
- Outfitted with a precision-engineered flange, incorporating **silicone/fluororubber gaskets** and a sturdy multi-bolt locking system, guaranteeing an absolute **zero-leak promise**.
Quick & Easy Operation
- Designed for simplicity with a lightweight build offering versatile **hinged or bolted cover options**, allowing for **single-person access** and greatly reducing operational interruptions.
Safety First
- Prioritizing safety with an optional **anti-fall mesh** (load capacity: 200kg) and a **secure anti-slip surface finish**, ensuring safe operation in all working environments.
Fully Customizable
- Offered in **DN400-DN800** with options for custom sizes, adhering to various **flange standards** (ANSI, DIN, JIS). Enhance functionality with additional **accessories** like sight glasses and vent valves tailored to your specific requirements.
Applications
- Oil & Gas: Ideal for storage tanks and reactor applications
- Food & Pharma: Perfect for hygienic vessel cleaning and thorough inspection
- Water Treatment: Vital for the upkeep of sewage tanks and reservoirs
- Marine & Power: Essential for boiler upkeep and pressure vessel access
Why Choose Us
✓ Take advantage of our ISO-Certified manufacturing excellence
✓ Enjoy unmatched peace of mind with our 1-year warranty and enduring support
✓ Experience rapid delivery and comprehensive OEM/ODM services for all your needs
✓ Benefit from free technical consultation and precise CAD drawings to enhance 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.