Sanitary High Purity Stainless Steel Food Grade Pneumatic Diaphragm Valve

Product Description

Straight Stainless Steel Food Grade Direct-Way Membrane Valve with Hand Wheel

The Stainless Steel Diaphragm Valve is designed for precise fluid control in hygienic processing systems. It utilizes a flexible diaphragm pressed against a weir to regulate flow, while the pneumatic actuation and plastic handle allow for both automated and manual operation. The three-way configuration enables efficient diversion or mixing of media, minimizing dead zones to ensure hygienic performance. This makes it ideal for aseptic and high-purity applications in food, beverage, and pharmaceutical industries.

Working Principle
The valve regulates flow by lifting or lowering the diaphragm against the weir, directing liquid between multiple pathways. The pneumatic actuator provides automatic switching, while the ergonomic plastic handle ensures manual control when required. Its sanitary weld-on design reduces leakage risks and ensures long-term durability in demanding sterile environments.

Technical Specifications

• Material: Sanitary-grade stainless steel with PTFE diaphragm

• Size Range: 1/2" to 4" (customizable)

• Pressure Rating: Up to 145 PSI (varies by model)

• Temperature Range: -20°C to 180°C (-4°F to 356°F)

• Connection Type: Weld-on sanitary ends

• Surface Finish: Polished Ra ≤ 0.8 μm for hygienic performance

• Compliance: FDA, 3A, ISO 9001 standards

Quality & Service

• 3 years quality guarantee

• Certified materials: ISO 9001, FDA, SGS

• Fast delivery: 7-10 days for urgent orders

• 20 years of global exporting experience for reliable and tailored solutions

Product Description

Straight Stainless Steel Food Grade Direct-Way Membrane Valve with Hand Wheel:

• Accurate Flow Diversion
  The 3-way weir-type design ensures precise media switching and diversion across multiple flow paths.

• Enhanced Hygiene
  The polished weld-on body provides a crevice-free structure, fully compatible with CIP/SIP cleaning.

• Dual Control Options
  Equipped with a pneumatic actuator for automation and a plastic handle for manual operation flexibility.

 

• Reliable Sealing
  The PTFE-lined diaphragm delivers excellent chemical resistance and a tight, contamination-free seal.

• Dead-Zone Minimization
  The optimized weir structure reduces dead zones, ensuring hygienic operation in aseptic systems.

• Versatile Applications
  Widely used in food, beverage, dairy, and pharmaceutical industries, supporting high-purity processes.

Product Parameters

Packaging & Shipping

FAB

Feature	Advantage	Benefit
1.3-way flow configuration allows for fluid diversion, mixing, or shut-off 2.U-type body design provides compact structure and enhanced flow control 3.PTFE lined inner surface offers excellent corrosion and chemical resistance 4.Weir-type diaphragm structure ensures low dead-leg and hygienic sealing 5.Available in multiple actuation modes: pneumatic, electric, and manual 6.Sanitary-grade stainless steel housing (SS316L), suitable for aseptic applications	1.Multi-directional flow path reduces the need for extra valves and fittings 2.PTFE lining provides excellent durability with aggressive media 3.Diaphragm separation eliminates contact between actuator and fluid 4.Low maintenance requirements, suitable for continuous operation 5.Smooth internal finish minimizes product retention and contamination risks 6.Ideal for sterile and aseptic applications, especially in biotech and pharma	1.Enhances process flexibility, allowing flow switching in compact systems 2.Extends equipment life, reducing replacement frequency and downtime 3.Protects product integrity, critical in sensitive liquid processes 4.Reduces contamination risks, ensuring compliance with GMP and FDA standards 5.Improves cleaning efficiency, saving water, chemicals, and cleaning time 6.Simplifies system design, minimizing installation space and cost

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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.