Stainless Steel Round Non-Pressure Manhole
Product Description
Product Overview
Introducing our impeccably engineered stainless steel round non-pressure manhole, a marvel of safety and strength tailored for tanks, vessels, and pipelines. With a seamless, corrosion-resistant access point for inspections and maintenance, this manhole is crafted from premium 304/316 stainless steel. Experience unrivaled durability and fortitude against challenging conditions, perfect for food processing, chemical, pharmaceutical, and water treatment industries. Its circular design complies with standard atmospheric vessel requirements, ensuring a superior seal that effectively prevents leaks.
Key Features
Premium Material
- Constructed from the finest **304/316 stainless steel**, celebrated for its unparalleled corrosion resistance, outstanding high-temperature performance, and remarkable durability.
Leak-Proof Seal
- Features a precision-engineered flange with **silicone/fluororubber gaskets** and a robust multi-bolt locking system, ensuring a steadfast **zero-leak guarantee**.
Quick & Easy Operation
- Ingeniously designed lightweight structure with flexible **hinged or bolted cover options**, enabling **single-person access** and reducing operational downtime.
Safety First
- Prioritizes safety with optional **anti-fall mesh** (supporting up to 200kg) and a **non-slip surface finish**, ensuring secure operation across all conditions.
Fully Customizable
- Offered in sizes **DN400-DN800** with options for custom dimensions. Compatible with various **flange standards** (ANSI, DIN, JIS). Customize with additional **accessories** like sight glass and vent valve to suit your exact requirements.
Applications
- Oil & Gas: Ideal for storage tanks and reactors
- Food & Pharma: Perfect for hygienic vessel cleaning and inspection
- Water Treatment: Vital for sewage tanks and reservoir maintenance
- Marine & Power: Perfect for boiler maintenance and pressure vessel access
Why Choose Us
✓ Trust in our ISO-Certified manufacturing standards
✓ Gain peace of mind with our reliable 1-year warranty and lifetime support
✓ Benefit from swift delivery and comprehensive OEM/ODM solutions
✓ Access free technical consultation and accurate 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.