316L Stainless Steel Sanitary Tri-Clamp Check Valve (Mirror Polished)
A stainless steel sanitary check valve is a specialized valve designed to prevent backflow in hygienic piping systems. It is primarily used in food, beverage, pharmaceutical, and biotech industries where cleanliness and corrosion resistance are critical. The valve ensures unidirectional flow, maintaining product purity and preventing contamination. Its smooth surface finish meets sanitary standards, making it easy to clean and sterilize. Key applications include processing lines, CIP systems, and fluid transfer systems. The durable stainless steel construction ensures longevity and compliance with strict industry regulations.
Working Principle
The stainless steel sanitary check valve operates by allowing unidirectional flow while blocking reverse flow. When fluid flows forward, the pressure lifts the valve disc or spring mechanism, opening the passage. When flow stops or reverses, the disc closes automatically due to gravity, spring force, or backpressure, preventing contamination. Its smooth, crevice-free design ensures hygiene, and the stainless steel construction resists corrosion. This mechanism is crucial in sanitary processes like food, pharma, and dairy, where backflow prevention is vital for safety.
Material: 316L/304 stainless steel (sanitary grade)
Connection: Tri-clamp, weld, flange, or threaded
Size: 1/2" to 6" (DN15 to DN150)
Temperature Range: -20°C to 150°C (higher options available)
Surface Finish: Ra ≤ 0.8 μm (electropolished)
Standards: 3-A, ASME BPE, EHEDG, FDA
Application: Food, beverage, dairy, pharmacy, chemical or any food processing industries
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
Stainless steel sanitary valves are widely used in high-cleanliness industries and have the following significant feature:
1. Spring-Loaded Disc
Features a high-precision spring for instant closure, eliminating water hammer in high-flow systems.
2. Full-Bore Design
Zero flow restriction with a smooth inner channel, preventing product buildup in viscous media.
3. Asymmetric Hinge
Self-aligning hinge mechanism reduces wear and ensures consistent sealing under pressure fluctuations.
4. Laser-Welded Joints
Seamless construction eliminates dead zones, exceeding EHEDG cleanliness standards.
5. Hybrid Seal System
Dual-material seals (FKM+PTFE) combine temperature resilience with ultra-low leakage rates.
6. Inline Maintenance
Quick-disassembly design allows sterilization without pipe disconnection, cutting downtime by 70%.
Feature
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Advantage |
Benefit |
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Electropolished 316L stainless steel construction ensures ultra-smooth surfaces (Ra ≤0.5µm) for superior hygiene and easy cleaning.
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Tri-clamp or weld ends provide secure, leak-proof connections while maintaining full CIP/SIP compatibility.
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Spring-assisted closure guarantees instant shutoff, preventing backflow even at low pressures.
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Full-bore, crevice-free design eliminates product entrapment and bacterial growth risks.
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FDA & 3-A compliant seals (EPDM/FKM) ensure food-grade safety and chemical resistance.
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Compact, lightweight design reduces installation space while maintaining high flow efficiency.
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Zero dead legs prevent contamination, exceeding EHEDG & ASME BPE standards for sanitary systems.
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Self-draining capability ensures no fluid retention, critical for sterile processes.
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Corrosion-resistant materials withstand high-temperature sterilization (up to 150°C).
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Low cracking pressure (0.1-0.3 bar) allows smooth operation in low-flow applications.
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Reduced maintenance due to wear-resistant hinges and seals for long service life.
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Quick-disassembly design enables fast cleaning without full system shutdown.
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Prevents costly contamination in pharma, dairy & biotech, ensuring product integrity.
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Minimizes downtime with easy-in-place cleaning, boosting production efficiency.
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Energy-efficient flow reduces pressure drop, saving operational costs.
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Extends equipment lifespan by preventing water hammer & backflow damage.
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Meets global regulatory standards, simplifying audits & compliance.
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Enhances process reliability with fail-safe performance in critical applications.
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Sanitary elbow, sanitary tee, sanitary reducers, sanitary unions, sanitary clamp, sanitary ferrule, sanitary pipe clamps, sanitary cleaning ball, sanitary sight glass, sanitary manway manhole cover, sanitary strainer, filters, and other sanitary pipe fittings...
Welcome to check our other products.
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 |
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.
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