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Adjustable Opening Pressure Sanitary 316L Check Valve
**Product Specifications:**
- **Sealing Form:** Bellows Globe Valve
- **Flow Direction:** Reversing
- **Standard:** 3A
- **Application:** Dairy, Food, Beverage, Pharmacy, Cosmetic, and Liquid Industries
- **Power:** Manual
- **Connection Way:** Weld, Clamp, Thread, Union
- **Seal Material:** Silicone, FKM (Viton), EPDM
- **Standards:** SMS, 3A, DIN, IDF, RJT, ISO
- **Max. Pressure:** 10 Bar
- **Temperature of Media:** Normal Temperature
- **Surface Treatment:** Standard Finish
- **Trademark:** QM Stainless
- **Transport Package:** Bubble Pack and Carton
- **Specification:** 9mm - 200mm or DN15-DN100
- **Origin:** Wenzhou, Zhejiang, China
- **HS Code:** 8481300000
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**Product Description:**
The **Sanitary Check Valve** is a high-quality stainless steel non-return valve designed for use in food, beverage, pharmaceutical, and cosmetic industries. It ensures safe and hygienic fluid flow by preventing backflow in piping systems.
**Key Features:**
- **Material Options:** SS304 or SS316L (food-grade stainless steel)
- **Standards Compliance:** Meets international standards such as 3A, SMS, DIN, IDF, and RJT
- **Size Range:** 1/2" to 4" (DN15 to DN100)
- **Connection Types:** Available with weld, clamp, male/female, union, and flange connections
- **Seal Materials:** Silicone, EPDM, Viton, NBR – suitable for different media and environments
- **Valve Types:** Includes standard, union, and ball types for versatile applications
- **Surface Finish:** Internal surface finish ≥0.4–0.8μm, external ≥0.8–1.6μm
- **Working Pressure:** 0–10 Bar
- **Working Temperature:** -10°C to +120°C (for EPDM seals)
- **Opening Pressure:** Varies by size (0.3 Bar for DN-25, 0.2 Bar for DN-32/40, 0.1 Bar for DN-50/100)
- **Design Standards:** Complies with DIN 11851-98, SMS 3008, and ISO 2037-92
This check valve is ideal for use in stainless steel pipeline systems where contamination control and product integrity are essential. It is commonly used in dairy processing, food manufacturing, and pharmaceutical production lines.
**Packaging:**
Each valve is typically packed in bubble wrap inside a carton box or wooden crate. Custom packaging options are available upon request.
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**Image Description:**
An adjustable opening pressure sanitary 316L check valve made of stainless steel, designed for clean and hygienic environments. The image shows the valve's structure, connection types, and surface finish.