How does the check valve operate?

The valve opens when fluid pressure exceeds spring pressure and closes when pressures equalize or counter-pressure increases, preventing backflow.

What industries can use this sanitary check valve?

It is widely used in food processing, beverage, wine, oil, cosmetics, pharmaceutical, and chemical industries.

Us 3A Sanitary Middle Clamp Stainless Steel Check Valve

Name: Us 3A Sanitary Middle Clamp Stainless Steel Check Valve
Brand: Donjoy Technology Co., Ltd.
SKU: 792921352

Zhejiang, ChinaDonjoy Technology Co., Ltd.

US$25.00-125.00

1 Piece

Product profile

Customization

Available

Media

Flow Control

Material

Stainless Steel 304, 316L

Pressure

Low Pressure

Polish

Internal 0.5 Micrometer

Gasket

PTFE/NBR/FPM

Connection Type

Weld, Clamp, Thread, Flange

Max Pressure

10bar

Product Name

3A Hygienic Butt-Weld Ends Reflux Valve

Max Temperature

-10~120 Degree Centigrade

Transport Package

Carton/Plywood Case

Specification

CE, 3A, FDA, ISO

Trademark

DONJOY

Origin

Wenzhou, Zhejiang, China

HS Code

8481804090

Production Capacity

100, 000PCS/Year

Key features

Multi-Material Options: Available in SS304 or 316L with EPDM, Silicone, or FPM seat options.

Wide Industry Application: Suitable for food, beverage, pharmaceutical, and chemical industries.

Flexible Connections: Supports butt-weld, tri-clamp, threaded, and flanged end connections.

Certified Quality: Holds 3A, CE, FDA certifications and ISO9001-2008 management.

Customization Available: Offers full, minor, and flexible customization from samples or designs.

Competitive Pricing: 20+ years manufacturing experience with competitive factory prices.

Low MOQ: Minimum Order Quantity is just 1 piece for easy trial orders.

Company profile

Years of Export ExperienceQuality AssuranceProduct Certification

Donjoy Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤5.12h

AI-Powered supplier vetting

SummaryDonjoy demonstrates broad manufacturing, customization, OEM/ODM, and R&D capabilities. It operates eight production lines, reports annual sanitary butterfly valve output of 200,000 pieces, and has eight quality inspectors. The supplier indicates ISO, environmental, occupational safety, CE, PED, MD, 3A, TS, ASME BPE, EHEDG, and FDA-related compliance or certification experience. It reports overseas agents or branches, export markets across multiple regions, and proximity to Ningbo and Shanghai ports. However, it has no stated in-stock capacity, overseas warehouse, overseas showroom, valid manufacturing-capacity contract with associated subcontractors, or offline trade-show participation. Financial evidence is limited to referenced years and does not provide sufficient information to assess credibility. Customer-case evidence is also insufficient because OEM service is stated without named customers or documented cases.

Supplier typeThe supplier presents itself as a manufacturer with machining, polishing, welding, blasting, ultrasonic cleaning, assembly, and CNC capabilities, while also offering OEM, ODM, and R&D services. Its product and process information supports classification as a manufacturing supplier rather than only a trading intermediary.

CertificationsThe company description cites production according to ASME BPE, EHEDG, FDA, and 3A standards, plus PED, MD, 3A, TS, and ISO9001:2008 credentials. Additional records identify ISO9001:2015, ISO14001, ISO45001:2018, and CE certification capability, providing explicit evidence of multiple quality, environmental, safety, and product-compliance credentials.

R&D capabilityThe supplier reports new products during the past year, ODM service, an R&D center, high-tech and innovative-enterprise recognition, and patent-model-enterprise status. It also uses an ERP system for digitized production, procurement, quality, and logistics management, although no SDK is available.

Production capacityProduction evidence includes eight production lines, eight quality inspectors, annual sanitary butterfly valve output of 200,000 pieces, one-month stated lead times, 30 qualified service-capability suppliers, and access to Ningbo and Shanghai ports. Nevertheless, the supplier reports no valid manufacturing-capacity contract with associated subcontractors, so capacity strength is supported but not fully risk-free.

Customization capabilityBoth R&D and design-capability records explicitly list customization from samples, customization from designs, full customization, minor customization, and flexible customization. The supplier also reports ODM capability and recent new-product development, directly supporting broad customization capability.