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Wenzhou ZN Machinery Co., Ltd – 20+ years focused on purity. AS, BS, DIN, 3A specialized manufacturer of high-quality sanitary valves, fittings, filters, and manways for pharmaceutical, food, dairy, and beverage processing industries.
20+
Years Experience
1000+
Workers
20,000㎡
Factory Area
For two decades, Wenzhou ZN Machinery Co., Ltd has been a leading manufacturer of high-quality sanitary valves, fittings, filters, and manways. We specialize in providing comprehensive solutions for industries where hygiene is paramount.
With 20 years of manufacturing expertise, we’re committed to delivering products that meet the most stringent industry standards, including 3-A and GMP (Good Manufacturing Practices). Our extensive experience ensures that every component is designed and produced with precision, durability, and ultimate hygiene in mind.
3-A Compliant
GMP Certified
AS / BS Standards
DIN 11850/11864
All products undergo rigorous quality control and are traceable to ensure compliance with international hygiene standards.
Explore our comprehensive selection of sanitary valves, fittings, strainers, gaskets, and tank accessories engineered for maximum hygiene, durability, and performance.
Manual and pneumatic models with high-precision casting. Ideal for sterile environments.
3-piece design with pneumatic actuation. Food-grade stainless steel construction.
Tri-clamp, weld end, and pneumatic options. Leak-proof sealing for critical processes.
Tees, elbows, reducers, unions, and tri-clamps. Precision-welded for seamless flow.
Bag, lenticular, and cartridge filter housings. Mobile skid systems available.
EPDM, silicone, and PTFE options. High-temperature resistant and FDA compliant.
Round and elliptical pressure manways. Safe access for tanks and vessels.
Hygienic stainless steel design with tempered glass. Full visibility for process monitoring.
Over two decades of excellence in sanitary component manufacturing.
Founded in 2003, we’ve built a reputation for reliability and innovation.
CE, 3-A, GMP, and DIN compliant products trusted worldwide.
20,000㎡ facility with precision CNC and automated welding systems.
Dedicated team ensuring quality at every stage of production.
20,000+
Square Meters Factory
1,000+
Skilled Employees
135+
Products Available
100+
Global Clients
Find answers to common inquiries about our products and services.
Our valves are manufactured from high-grade 304 and 316L stainless steel, ensuring corrosion resistance, durability, and compliance with food and pharmaceutical standards.
Yes, all our sanitary components are designed and manufactured to meet 3-A and GMP standards, with full documentation and traceability available upon request.
Yes, we provide custom manufacturing services including design, prototyping, and bulk production based on client specifications and drawings.
Standard products ship within 7–15 days. Custom orders may take 20–30 days depending on complexity. We offer expedited options upon request.
Visit our official website or contact our sales team directly via WhatsApp or email with your product specifications and quantity requirements.
We’d love to speak with you. Reach out for quotes, technical support, or custom solutions.
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