Food Grade Sanitary Quick Open Circular Type Glass Manhole Cover Without Pressure

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: Circular type manhole cover(without pressure)
• Process: CNC Machine
• Power Source: Manual
• Certification: ISO9001, FDA
• Automatic Grade: Manual
• Application: Milk, Yogurt, Milk Powder, Cheese, Food
• Customized: Customized
• Size: Customizable Size
• Material: Stainless Steel 304/316L
• Sealing Gasket Material: EPDM
• Working Temperature: -10°c-130
• Working Pressure: 2-5MPa
• Casting: Investment Casting
• Surface Polishing: Ra0.4μm
• Internal Surface: Ra0.4μm
• Certificate: 3A/54-02 (1580), PED/97/23/Ec, FDA 177.2600
• Transport Package: Carton /Wooden
• Specification: DN100-DN800
• Trademark: Sanying
• Origin: Made in China
• HS Code: 8481804090
• Production Capacity: 5000 Set / Week
• Package Size: 26.00cm * 26.00cm * 20.00cm
• Package Gross Weight: 10.000kg

Product Description

Product Description

Circular type manhole cover (without pressure)

D	H	t
150	100	2
200	100	2
250	100	2
300	100	2
350	100	2
400	100	2
430	100	2.5
450	100	2.5
500	100	3
600	100	4

 

Company Profile

Packaging & Shipping

FAQ

1. Are you a trading company or factory? 
We are a manufacturer factory and we also have our own exporting license. 

2. Do you have certificate? 
Yes, ISO, FDA,SGS certificate. We also have some patents in design(Such as 3A Certificate which is similar as BPE/ASME certificate). 

3.Do you offer customization?
Yes. We provide tailored solutions including:  
- Custom dimensions (e.g., flange face-to-face lengths as per DIN/ISO).  
- Material upgrades (e.g., Hastelloy body for highly corrosive media).  
- Laser-marked logos/batch numbers for traceability

4.Why choose your valves over competitors?
Our valves are specifically designed for pharmaceutical applications with zero dead space(per EHEDG guidelines), FDA-compliant EPDM membranes, and full traceability from raw material to delivery. 90% of clients report reduced contamination risks post-installation

5.How do you ensure zero dead legs in valve design?  
Our patented "Radius-Seal" diaphragm technology reduces crevices by 80% compared to traditional designs. View our 3D sectional drawings for details

6. How do you control the quality? 
In quality control, the most important is to avoid material mixing. 
In our factory, 3 spectro PMI and MTC machines are used in raw material warehouse, production plant, dispatch plant. 
Pressure inspecting machine, PMI and MT machines, RA roughness spector, hardness testing machine...All machines help in inspection. 
2 staff inspect during production in different sections
5 staff inspect the finished productions to avoid shortage, poor quality, mixing chemical...

7.Can you provide material traceability documentation?
Yes. Each valve comes with a Material Traceability Report (MTR)/Material Testing Certificate(MTC) including melt batch numbers and heat treatment records

8. If there is any quality problem, how do you solve it? 
We are very proud that we never make one customer leave us. We are online 24 hours (Response rate >95%)and then the clients can contact with us full time for sloving well with some quality problem. 

9. How long is your delivery time? 
For normal products in 7-10 days; For bulk order, in 15-25 days. It depends. 

10. Warranty time? 
13 monthes warranty for all of our stainless steel products. Gaskets or the easy broken/wear parts are not included due to the different application for customers.