Stainless Steel Sanitary Oval Storage Manhole Hatch Cover (JN-ML1002)

• Customization: Available
• Process: Mild Processing
• Power Source: Electric
• Model NO.: JN-ML 1002
• Certification: ISO9001
• Automatic Grade: Manual
• Application: Milk, Yogurt, Milk Powder, Cheese
• Customized: Customized
• Body Material: SS304, SS316L
• Sealing Material: Silicone, EPDM, Viton, PTFE, or NBR
• Qualified Certificate for Seal: FDA
• MOQ: 1PCS
• Raw Material: Forging or Casting
• Processing Machine: LG Mazak CNC Machine
• Standard: SMS, ISO, as, BS, Bpe, Rjt, 3A, Idf
• Acting Mode: Manual or Pneumatic or Electrical
• Inner Surface Finish: Ra 0.5
• External Surface Finish: Ra0.8
• Connection: Weld, Clamp, Male, Female, Union, Flange
• Transport Package: Wooden Case
• Specification: DN8-DN300, 1/4"-10"
• Trademark: JONENG
• Origin: Wenzhou, China
• HS Code: 73072900
• Production Capacity: 10000PCS/Month
• Package Size: 20.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 5.000kg

Product Description

Stainless Steel Sanitary Oval Storage Manhole Cover(JN-ML1002)

 

A is a hygienic access point designed for pressure or non-pressure tanks in clean process industries. It is commonly used in dairy, food, beverage, pharmaceutical, and biotech systems. Its purpose is to allow easy internal inspection, cleaning, and maintenance while ensuring a contamination-free seal. The smooth, crevice-free design supports hygienic compliance and CIP/SIP protocols.

Working Principle
The sanitary stainless steel circular manhole operates by forming a sealed access point on tanks or vessels. When closed, its gasket is compressed by a clamp or swing-bolt mechanism to create a leak-proof, hygienic seal. To open, the operator loosens the handle or bolts, allowing the cover to be safely lifted for inspection or cleaning. During operation, it resists internal pressure or vacuum, maintaining system integrity and CIP compatibility without contamination.

Type: Pressure / Non-pressure
Shape: Round
Opening Direction: Inward / Outward
Diameter: 200mm - 600mm
Seal: Silicone / EPDM / PTFE
Finish: Ra ≤ 0.8μm (internal)
Mounting: Welded to tank wall or top
Working Pressure: 0 - 3 bar (varies by model)
Temperature Range: -10°C to 120°C (depending on seal)
Connection: With or without hinge, handle, or safety lock
 

Quality guarantee of 3 years

ISO 9001, FDA, SGS approved materials

7-10 days fast delivery on urgent requirements

20 years' Rich exporting experience to make you easy and happy with custom work

  

Product Description

Stainless steel sanitary fittings are widely used in high cleanliness industries and have the following significant feature:

1.Deep-Drawn or Precision-Welded Shell
Minimizes weld seams for better structural integrity and easier internal cleaning, ideal for hygienic flow environments.

2.Condensate-Draining Top Head
Sloped or domed design prevents fluid accumulation and supports aseptic conditions in sterile or cleanroom applications.

3.Fully Drainable Bottom Geometry
Hemispherical or conical bottom allows complete product discharge and reduces cleaning cycles in high-purity processes.

4.Flush-Welded Sanitary Nozzles
Ports are crevice-free, angled for flow, and designed for instrumentation and CIP, ensuring zero contamination points.

5.Optional Thermal Control Jacket
Dimple or shell jacket provides uniform heating or cooling while maintaining an easy-to-clean sanitary outer surface.

6.Hygienic Support Base System
Polished, adjustable legs with open clearance support floor wash-through and vibration-free operation in critical zones.

Product Parameters

Packaging & Shipping

FAB

Feature	Advantage	Benefit
1.Round structure for uniform pressure distribution and hygienic sealing. 2.Equipped with EPDM, silicone, or FKM gaskets for CIP/SIP compatibility. 3.Quick-opening or bolt-clamped design for flexible operation. 4.Internal surface polished to Ra ≤ 0.8μm, meeting high sanitary standards. 5.Available in various pressure and vacuum ratings, suitable for multiple processes. 6.Can be installed on tanks, vessels, or pipelines, both vertically and horizontally.	1.Smooth interior finish reduces product residue and contamination risk. 2.Tool-free access (for quick-opening models) accelerates inspection and cleaning. 3.Compatible with 3-A, FDA, and EHEDG sanitary requirements. 4.Corrosion-resistant construction ensures long-term durability. 5.Pressure-resistant sealing enhances safety during operation. 6.Allows customized dimensions and materials for specific process needs.	1.Minimizes downtime during maintenance, improving overall efficiency. 2.Ensures product purity, reducing batch rejection risks. 3.Improves operator safety with secure locking and pressure relief options. 4.Enhances regulatory compliance, easing audits and certifications. 5.Reduces long-term operating costs due to durability and easy upkeep. 6.Supports process integrity, protecting brand reputation and quality control.

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Company Profile

 

 

 

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About us
JoNeng was established in July 2007, strategically situated in Wenzhou, China. Boasting a team of approximately 100 skilled workers, our expansive factory spans 6800m2, dedicated to delivering exceptional valve and pipe solutions with precision and excellence.
Under the esteemed Joneng enterprise, we proudly operate three specialized manufacturing facilities. Jiayuan excels in producing elbow, tee, and reducer fittings in both sanitary and schedule grades; Lingdong focuses on precision-engineered ferrules, unions, sight glasses, and butterfly valves using advanced CNC technology; while Ezo specializes in designing high-quality manhole covers and small tanks to meet diverse industrial needs.

Mainly manufacture
Stainless steel butterfly valves, ball valves, check valves, CPM valves, and diaphragm valves, meticulously designed for reliability and precision in fluid control systems.
Stainless steel sanitary and industrial-grade elbow, tee, reducer, ferrule, and union fittings, engineered for seamless connectivity and outstanding performance.
Stainless steel sight glass, spray ball, manhole cover, flanges, strainers, filters, and pipe clamps, offering comprehensive solutions to meet your varying operational demands.
Stainless steel centrifugal pumps, CIP pumps, emulsifying pumps, and rotary pumps, ensuring efficient and effective fluid handling and processing across diverse industries.

International standards
Our products are expertly crafted to align with SMS, DIN, AS, BS, BPE, JIS, ISO, ANSI B16.5, ASME, and other international standards. We also offer the flexibility of customized solutions. Our high-quality products have successfully reached over 100 countries, including Europe, America, the Middle East, Australia, Turkey, Iran, and Thailand, showcasing our global presence and commitment to excellence.
Wenzhou Joneng Valves Co., Limited proudly extends its reach to a diverse array of countries and regions including Europe, America, the Middle East, Australia, Turkey, Iran, Thailand, and more, amassing a remarkable presence in over 100 countries worldwide.
Joneng stands as a paragon of quality assurance, adorned with the prestigious CE, PED, and ISO 9001 certifications, which exemplify our unwavering dedication to superior quality management. Our products also adhere to FDA standards, reinforcing trust and reliability at every step.

 

 

Extensive inventory of pipe fittings

Our extensive inventory of pipe fittings features an array of stainless steel options: elbows, tees, reducers, unions, ferrules, butterfly valves, check valves, and ball valves, empowering us to deliver goods promptly and with unparalleled efficiency.

3-year guarantee and 24 hours 
concerns

Our pledge to excellence is embodied in our promise of swift 24-hour resolution for any quality complaints, nurturing customer satisfaction while driving continuous enhancement.

At Wenzhou Joneng Valves Co., Limited, we extend an unmatched 3-year guarantee on all stainless steel components, offering you peace of mind. Should any quality issues surface with our valves and fittings, please do not hesitate to contact us. We assure a swift response with action initiated within 24 hours to resolve any concerns effectively.

Welcome to the factory
√ With 17 prolific years of dedicated expertise in the industry, we embody an unwavering commitment to quality and innovative solutions.

√ Spanning an impressive 6800m2, our state-of-the-art facility is adeptly equipped to manage diverse production demands with flawless efficiency.

√ Our skilled workforce of 100 employees fuels our engine of excellence and propels our growth trajectory.

√ Thriving in over 100+ countries, our expansive global reach is a testament to the trust and satisfaction our international clientele repose in us.

√ With a formidable network of 1000+ partners worldwide, our collaborative endeavours continue to drive success and shared aspirations.

 

OUR PRODUCTION CAPACITY 

 

Production Lines	Stainless steel sanitary pipe fittings' line, machining line, sanitary manhole line,
Product Range	Sanitary butterfly Valve, sanitary diaphragm valve, sanitary pipe fittings, union, ferrule, sight glass, manhole cover, safety valve, sampling valve...
Year Established	2007
Factory Size in Square Meters	5000M2
NO. OF TOTAL STAFF	130
Production Capital	8 000 000 USD
Detail capacity	Manhole covers	12000nos
	Pipe fittings	150000nos
	Ferrules, unions, connectors	200000nos
	Diaphragm valves	15000nos
	Butterfly valves	20000nos
Investment in Manufacturing Equipment	750000USD
Details of equipment	For machining parts 29 nos of LG Mazak CNC Machines 4 nos of local CNC machines 2 nos of automatic CNC center 12 nos of plain lathe For pipe fittings 4 nos of press 3 nos of cutting machine 3 nos of chamfering machine We also have the following quipments 4 nos of polishing machine 12 nos of grinding machine 3 nos of laser marking machine 3 nos of pressure testing machine 1 nos of temperature testing machine 3 nos of spectro instrument 1 nos of surface roughness device
Primary Competitive Advantages	Strict inspection, honest business way, fast revert on order problem
Stocked materials	Big quantity for raw forging of butterfly valve, diaphragm valve, ferrule, union, adapters, pipe fittings, clamps, sight glass, safety valve, manhole cover,
OEM Services Provided	Yes
Design Service Offered	Yes
Sales Volume	6 000 000 USD
Export Percentage	80%
MAIN MARKET	USA, Germany, Hungary, Canada, Thailand, Holland, England, South Africa, Indonesia, Saudi, India, New Zealand, Australia, Middle East...
Own Brand Name	JoNeng

Certifications

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, LFGB, CE, PED certificate. We also have some patents in design. 

3. How do you control the quality? 
In quality control, the most important is to avoid material mixing. 
In our factory, 3 spectro PMI machines are used in raw material warehouse, production plant, dispatch plant. 
Pressure inspecting machine, PMI 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...

4. How many factories do you have?
Under the esteemed Joneng enterprise, we proudly operate three specialized manufacturing facilities. 
Jiayuan excels in producing elbow, tee, and reducer fittings in both sanitary and schedule grades;
Lingdong focuses on precision-engineered ferrules, unions, sight glasses, and butterfly valves using advanced CNC technology; 
while Ezo specializes in designing high-quality manhole covers and small tanks to meet diverse industrial needs.

5. 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 not 100% perfect, there is some quality problem. 
Normally replacement, or compensation, or resend goods to customers as per the condition. To be discussed as per condition. 

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

7. Warranty time? 
3 years warranty for all of our stainless steel products. Gaskets or the easy broken parts are not included due to the different application for customers. 

8. Why trust in us? 
14 years in this industry. It makes us professional. Good credit in this market. 
All of our machines are the assurance of our responsibility. 

9. Free sample? 
Free samples can be provided for first cooperation under sincere cooperation. 

10. What is the MOQ? 
1PCS MOQ is welcome for starting cooperatoon

11. Material certificate? 
Material certificaite, mill certificate, pressure testing certificate, roughness certificate, measure certificate, RT certificate, ...Can be available, please declare when inquiry us. 

12. More questions are appreciated.