Standard Round Manhole Cover Pressure Tank Door in 304 316L Stainless Steel

• Customization: Available
• After-sales Service: 72 Hour
• Warranty: 1 Years
• Model NO.: sysi-1006
• Customized Support: OEM, ODM, Obm
• Product Name: Tank Door Manway Cover
• Sealing Gasket Material: EPDM
• Working Temperature: -10°C-130
• Working Pressure: 2-5MPa
• Casting: Investment Casting
• Surface Polishing: Ra0.4μM
• Certificate: 3A/54-02 (1580), PED/97/23/Ec, FDA 177.2600
• Transport Package: Carton Box
• Specification: 3/4 inch -3 inch
• Trademark: Sanying
• Origin: China
• HS Code: 8481804090
• Production Capacity: 200000PCS/Year
• Package Size: 10.00cm * 12.00cm * 12.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 10 days (1 - 10 Pieces) ; To be negotiated ( > 10 Pieces)

Product Description

Sanitary Stainless Steel Manhole Covers

We provide extensive line of sanitary process valves. Including stainless steel sanitary valves includes , , ,,sanitary radial tank bottom diaphragm valve,,,,,...And other sanitary valves. They are used to open or close or control the liquid flow. 
All of our sanitary valves are food grade. Inner Ra 0.5 to meet food requirement. Surface is smooth and elegant. 
Gaskets are FDA approved. 
All valves parts are produced from CNC machines. 
Our sanitary valves are widely used for food, beverage, wine, beer, dairy, pharmacy, Bio and chemical industries. 
We provide customization for all products.
Quality guarantee of 3 years
ISO 9001, FDA, SGS approved materials
7-10 days fast delivery on urgent requirements
10 years' Rich exporting experience to make you easy and happy with custom work

	Sanitary butterfly valve	Sanitary Check valve	Sanitary diaphragm valve	Sanitary ball valve
Size	1/2"-4"	1/2"-1"	1/4"-4"	1/2"-4"
Grade	SS304, SS316L	SS304, SS316L	SS304, SS316L	SS304, SS316L
Max temperature	-10ºC-130ºC	-10ºC-130ºC	-20ºC-120ºC	-20ºC-120ºC
Max pressure	10bar	10bar	10bar	10bar
FDA approved	Yes	Yes	Yes	Yes
Inside Ra	0.8	0.8	0.4	0.8
Seal	Silicone, EPDM, FPM, PTFE	NBR,FPE,EPDM	EPDM+PTFE	PTFE

	Sanitary angle seat valve	Sanitary sample valve	Sanitary cleaning ball	Sanitary tank bottom valve
Size	1/2"-2.5"	1/2"-1"	25,45,75,28,91mm	3/4"-3"
Grade	SS304, SS316L	SS304, SS316L	SS304, SS316L	SS304, SS316L
Max temperature	-10ºC-180ºC	150ºC	120ºC	-20ºC-150ºC
Max pressure	16bar	10bar	2-4bar	10bar
FDA approved	Yes	Yes	Yes	Yes
Inside Ra	0.8	0.8	0.8	0.8
Seal	PTFE	PTFE	PTFE	EPDM+PTFE

Product Description

1. Hygienic Design
Smooth, polished surfaces (Ra ≤ 0.8 μm) prevent bacterial growth and meet FDA or 3-A sanitary standards. Easy to clean and sterilize.

2. Aesthetic & Functional
Sleek, weld-free finish maintains product integrity while ensuring no contamination risks.

3. Leak-Proof Sealing
Equipped with FDA-compliant gaskets (e.g., EPDM, silicone) for airtight/watertight sealing, critical for food, pharmaceutical, and biotech industries.

4. Easy Maintenance
Modular design with quick-release clamps or bolts allows fast disassembly for inspection or cleaning, reducing downtime.

5. Customizable
Available in various sizes, shapes (round/oval), and configurations (flanged, tri-clamp) to fit specific process needs.

6. Compliance
Meets international hygiene regulations (GMP, ASME BPE) for industries requiring sterile conditions.

Product Recommendations

Specification

Product Name	Manhole Covers
Size	Customized
Material	Stainless steel 304/316L,
Sealing Gasket Material	EPDM
Working  Temperature	-10°C-130
Working Pressure	2-5Mpa
Investment Casting	Yes
Surface Polishing	Ra0.4μm
Internal surface	Ra0.4μm
Certificate	3A/54-02 (1580), PED/97/23/EC, FDA 177.2600

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

4.How do you ensure zero dead legs in valve design?  
Our patented "Radius-Seal" diaphragm technology reduces crevices by 80% compared to traditional designs. 

5. How do you control the quality?
In quality control, the most important is to avoid material mixing. 
In our factory, 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. 
during production in different sections
the finished productions to avoid shortage, poor quality, mixing chemical...

6. If there is any quality problem, how do you solve it?
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. 
Normally replacement, or compensation, or resend goods to customers as per the condition. To be discussed as per condition. 

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

8. 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. 

9. What is the MOQ?
1PCS MOQ is welcome for starting cooperatoon
 
10. More questions are appreciated. Your kind advises,making us more professional!!!