316L Sanitary JIS 40K ANSI B24 1-5/8" RF Seal-Lok Water Treatment Female Threaded Welding Neck Flange

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Model NO.: EZO-PF3031
• Material: Stainless Steel
• Structure: Round
• Connection: Welding
• Sealing Surface: FF
• Manufacturing Way: Forging
• Body Material: SS304, SS316L
• Raw Material: Forging or Casting
• Processing Mach: LG Mazak CNC Machine
• Acting Mode: Manual or Pneumatic or Electrical
• External Surface Finish: Ra0.8
• Transport Package: Wooden Case
• Specification: 1/2"-72"
• Trademark: JONENG
• Origin: China
• HS Code: 8421219990
• Production Capacity: 5000pic/Month
• Package Size: 50.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 10.000kg

Product Description

316L Sanitary JIS 40K ANSI B24 1-5/8" RF Seal-Lok Water Treatment Female Threaded Welding Neck Flange

 

A is a precision-machined connector used in hygienic piping systems. It ensures leak-proof sealing between pipe sections, commonly found in food, beverage, and pharmaceutical industries. This flange allows easy disassembly, making maintenance and cleaning more efficient. It is typically used in CIP/SIP systems, processing lines, and fluid transfer operations. The smooth surface finish prevents contamination, while its robust mechanical strength supports high-pressure applications. With standardized dimensions, it ensures compatibility with other sanitary components.

Working Principle
The working principle of a stainless steel sanitary flange involves aligning two flange faces, inserting a gasket between them, and securing them with bolts. This process creates a tight seal, preventing leakage during fluid transfer. The gasket compresses evenly, distributing pressure across the joint. As bolts are tightened, the connection stabilizes under mechanical force. This setup withstands repeated CIP/SIP cycles, ensuring hygiene and performance. The smooth inner bore alignment reduces turbulence, while the quick assembly and disassembly aid in fast maintenance and cleaning.

Size Range: 1/2" to 12"
Connection Type: Clamp / Weld / Threaded
Seal Type: Flat gasket / O-ring groove
Surface Finish: Ra ≤ 0.8 μm (polished)
Pressure Rating: 0-10 bar (145 psi)
Temperature Range: -20°C to 180°C
Standard Compliance: DIN / ISO / 3A / SMS / ASME BPE
Material Grade: 304 / 316L
Application: CIP/SIP compatible, hygienic piping systems

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 tanks are widely used in high-cleanliness industries and have the following significant feature:
1.Integrated Precision Machining
The flange body is CNC-machined for tight tolerances, ensuring stable fitment, leak-free sealing, and system reliability in sterile environments.

2.Optimized Gasket Interface
Grooved contact face supports flat or O-ring seals, providing enhanced sealing adaptability under varying pressure or media conditions.

3.Polished Inner Contact Surface
Ra ≤ 0.8μm finish minimizes product adhesion, promotes full CIP coverage, and helps maintain hygienic standards throughout operation.

4.Reinforced Neck Design
The neck area is thickened to prevent deformation, maintaining structural integrity under high clamp force or frequent thermal cycling.

5.Multi-Standard Compatibility
Designed to meet DIN, ISO, or 3A specs, it supports global interchangeability, making system upgrades or replacements more flexible.

6.Clamp or Weld-End Options
Offered in quick-release clamp or weldable form, enabling either rapid maintenance or secure permanent installation, depending on need.

Product Parameters

Detailed Photos

FAB

Feature	Advantage	Benefit
1.Precisely machined with tight dimensional tolerances, ensuring secure and sanitary connections. This level of accuracy supports easy alignment during system assembly and reduces leakage risk. 2.Available in multiple standards like DIN, ISO, SMS, and 3A. This ensures compatibility across global markets, allowing flexible integration into existing systems. 3.Manufactured with polished inner surfaces, achieving Ra ≤ 0.8 μm. The smooth surface supports cleanability and hygienic compliance in food and pharmaceutical processes. 4.Includes varied sealing grooves, compatible with flat gaskets or O-rings. This allows custom sealing solutions for specific pressure or fluid containment needs. 5.Features robust weld or clamp connections. These options offer quick installation or permanent setups, reducing installation time and system downtime. 6.Constructed for high corrosion resistance, using 316L material. This allows long service life in aggressive CIP/SIP environments, reducing maintenance frequency.	1.Highly resistant to acid and alkali cleaning agents, offering long-term use in aggressive cleaning cycles common in sanitary applications. 2.The standardized face dimensions ensure interchangeability, which means downtime is minimized during component replacement or upgrades. 3.Supports sterile processing requirements, enabling safe handling of sensitive media without risk of contamination. 4.Mechanical strength supports both low and moderate pressure systems, which enables broad application from dairy to biotech. 5.Full traceability through material certificates and batch numbers ensures regulatory compliance and simplified quality control. 6.Can be combined with multiple gasket materials, offering media-specific sealing for steam, alcohol, or high-viscosity fluids.	1.Delivers consistent sealing performance, reducing product loss and batch contamination in sanitary processes. 2.Ensures safe and hygienic transfer, which directly improves product quality and consumer safety in end applications. 3.Allows for fast system modifications due to easy disassembly, increasing operational flexibility in dynamic production lines. 4.Minimizes downtime and maintenance, directly helping cut operational costs over the valve's service life. 5.Ensures regulatory confidence by meeting 3A, FDA, and EHEDG standards, reducing risk during audits and exports. 6.Facilitates clean-in-place efficiency, boosting overall equipment effectiveness (OEE) and plant productivity.

Product Recommendations

Company Profile

 

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Welcome to check our other products.
 

Ezo stainless steel company was started in 2007. Located in the stainless steel industry zone, Wenzhou, China.

Ezo stainless steel is the branch company of Joneng valves co.,ltd

Totally 145nos of workers and the factory Covers 6800m2. Till now, we have 50 sets of imported and local brand CNC machines ; Plus, we have 2 sets of automatic machining unit.

To assure better quality, we have the full inspecting quality control equipment: 2nos Ra roughness instrument, 3nos stainless steel spectrometer, numbers of roundness instrument, numbers of thickness instrument, numbers of radius instrument, 3 nos pressure testing center.

Ezo stainless steel services for food, beverage, dairy, chemical, bioth, pharmaceutical, chemical, oil and etc industries.

Ezo stainless steel customers are from 80 different countries.After so many years, Ezo knows more about different requirements from different countries' customers.

Ezo stainless steel believes in "What we say, what we do". We always believe honesty and responsibility is the only way leading to long term business relationship. Trying our best for customers and put ourselves into customers' shoes.

Our commitment " Never let customers leave us because our poor service".

Making business with us, making friends with us.

About us
Ezo 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.

We mainly manufacture:
Stainless steel storage tank, mixing tank, extracting tank, evaporator, concentration units, fermenting tank, plate sterilizer, CIP cleaning system, heat exchangers,offering comprehensive solutions to meet your varying operational demands.
Stainless steel sanitary manways ( Pressure type manway, non pressure manway, round manway, rectangular manway,engineered for seamless connectivity and outstanding performance.
Stainless steel sanitary filters ( Y filter, inline filter, L filter, housing filter,meticulously designed for reliability and precision in fluid filtration systems.
Stainless steel centrifugal pumps, CIP pumps, emulsifying pumps, and rotary pumps, ensuring efficient and effective fluid handling and processing across diverse industries.

 

 

Harnessing the prowess of three advanced PMI machines, we scrupulously assess the chemical composition of raw materials, semi-finished, and final products, preemptively averting potential mix-ups, thereby safeguarding quality consistency.
Leveraging an advanced roughness measuring machine, we meticulously verify the surface quality of our products, ensuring they consistently meet the pinnacle of precision and excellence in finish.

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 Ezo stainless steel 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.
Ezo 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

Our extensive inventory of manhole covers and small tanks features an array of stainless steel options: storage tank, mixing tank, extracting tank, evaporator, concentration units, fermenting tank, plate sterilizer, CIP cleaning system, heat exchangers,sanitary filters sanitary pump,sanitary manholes,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 Ezo stainless steel 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
 

Product Range	Stainless steel storage tank, mixing tank, extracting tank, evaporator, concentration units, fermenting tank, plate sterilizer, CIP cleaning system, heat exchangers stainless steel sanitary filters ( Y filter, inline filter, L filter, housing filter Stainless steel Sanitary pump ( stainless steel sanitary centrifugal pump, rotary lobe pump, CIP pump) Stainless steel sanitary manways ( Pressure type manway, non pressure manway, round manway, rectangular manway
Year Established	2007
Factory Size in Square Meters	6800M2
NO. OF TOTAL STAFF	145
Production Capital	10 000 000 USD
Detail capacity/ MONTH	TANKS	50nos
	Manhole covers	500nos
	FILTERS	600nos
	PUMPS	400nos
Investment in Manufacturing Equipment	750000usd
OUR EQUIPMENTS	29 nos of LG Mazak CNC Machines
	4 nos of local CNC machines
	2 nos of automatic CNC center
	12 nos of plain lathe
	4 nos of press
	3 nos of cutting machine
	3 nos of chamfering machine
	40 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
	2 nos of surface roughness device
Primary Competitive Advantages	Strict inspection , honest business way, fast revert on order problem
OEM Services Provided	yes
Design Service Offered	yes
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	EZO

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.