Stainless Steel Round Non-Pressure Manhole
Product Description
Product Overview
Introducing our expertly crafted Stainless Steel Round Non-Pressure Manhole, a paragon of safety and durability for tanks, vessels, and pipelines. This meticulously engineered manhole provides seamless, corrosion-resistant access tailored for inspection and maintenance tasks. Constructed with superior 304/316 stainless steel, it stands as a testament to remarkable strength and resilience, even amidst the most challenging environments. This makes it the ultimate choice for sectors such as food processing, chemicals, pharmaceuticals, and water treatment. Its design is perfectly aligned with standard requirements for atmospheric vessels, featuring a circular structure that guarantees extraordinary sealing performance, effectively eliminating any risk of leaks.
Key Features
Premium Material
- Crafted from the finest **304/316 stainless steel**, renowned for its exceptional corrosion resistance, outstanding high-temperature endurance, and lifelong durability.
Leak-Proof Seal
- Equipped with a precision-engineered flange, incorporating **silicone/fluororubber gaskets** and a robust multi-bolt locking system, ensuring a flawless **zero-leak guarantee**.
Quick & Easy Operation
- Designed with simplicity in mind, featuring a lightweight frame with versatile **hinged or bolted cover options**, allowing for **single-person access** and significantly minimizing operational disruptions.
Safety First
- Ensuring top-tier safety with an optional **anti-fall mesh** (load capacity: 200kg) and a **secure anti-slip surface finish**, promoting safe operation across all working environments.
Fully Customizable
- Available in **DN400-DN800** with customizable sizing options, compliant with various **flange standards** (ANSI, DIN, JIS). Enhance functionality with additional **accessories** like sight glasses and vent valves tailored precisely to your requirements.
Applications
- Oil & Gas: Perfect for storage tanks and reactor applications
- Food & Pharma: Ideal for hygienic vessel cleaning and thorough inspection
- Water Treatment: Critical for the maintenance of sewage tanks and reservoirs
- Marine & Power: Indispensable for boiler upkeep and pressure vessel access
Why Choose Us
✓ Benefit from our ISO-Certified manufacturing excellence
✓ Enjoy unparalleled peace of mind with our 1-year warranty and dedicated support
✓ Experience swift delivery and comprehensive OEM/ODM services tailored to your needs
✓ Receive free technical consultation and detailed CAD drawings to elevate 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.