High-Performance Sanitation Welding Check Valve for Clean Systems

• Customization: Available
• Temperature: Ordinary Temperature
• Material: Stainless Steel
• Connection Form: Welding
• Structure: Butterfly
• Pressure: Low Pressure
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Bellows Globe Valve
• Flow Direction: Bidirectional
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Package Size: 110.00cm * 110.00cm * 90.00cm
• Package Gross Weight: 500.000kg
• Transport Package: Carton, Wooden Case
• Specification: DN25-150/1"-6′
• Trademark: ShangBaoLuo
• Origin: Jiangsu, China
• HS Code: 8481804090
• Production Capacity: 100, 000, 000 Sets/Year

Product Description

SANITATION WELDING TYPE CHECKVALVE
Material:SUS304,SUS316L
Pipe size:DN25-150 and 1"-6'
 

SANITATION WELDING TYPE CHECK VALVE (SUS304/SUS316L)
Hygienic Process Safety with Unidirectional Flow Control

Product Features & Applications

1. Hygienic Design:
   • Butt-weld ends eliminate crevices, ensuring zero-dead-leg operation (3A Standard compliant).
   • Ideal for high-purity processes in food, beverage, dairy, bio-pharmaceutical, and CIP/SIP systems.
2. Leak-Free Operation:
   • Spring-loaded disc mechanism guarantees bubble-tight sealing under bidirectional pressure.
   • No external gaskets reduce contamination risks and simplify maintenance.
3. Corrosion Resistance:
   • SUS304/SUS316L body withstands harsh chemicals, steam, and high-temperature fluids.
   • Electropolished surface (Ra ≤0.5μm) resists corrosion and microbial adhesion.

Technical Specifications

 

Parameter	Details
Body Material	SUS304 (AISI 304) / SUS316L (AISI 316L)
Pipe Size Range	DN25-150 (1" to 6")
Connection Type	Butt-weld (BPE-compliant) / Sanitary flange
Pressure Rating	PN10-PN40 (150-580psi)
Temperature Range	-40°C to 260°C (PTFE seal); -20°C to 180°C (EPDM)
Disc Material	SUS304/SUS316L (same as body)
Spring Material	AISI 316 (standard) / Hastelloy C276 (optional)
Surface Finish	Electropolished (Ra ≤0.5μm) / Mechanical polish

Quality & Compliance

• Certifications:
  • 3A Sanitary Standard (Class II, No. 74-05).
  • ASME BPE compliant for biopharmaceutical applications.
  • FDA 21 CFR 177.2600 compliant for food contact.
  • PED 2014/68/EU for pressure equipment.
• Testing Protocols:
  • Helium leak detection at 10^-9mbar·L/s.
  • Cycle testing: 1,000,000 cycles without performance degradation.
  • Material verification via XRF + 3.1B material certificate.

Product Advantages

1. Optimized Flow Path:
   • Streamlined disc design minimizes pressure drop (<0.5bar at max flow).
   • Full-port bore matches pipe diameter for unrestricted flow.
2. Material Flexibility:
   • SUS304: Economic choice for neutral media (water, air, steam).
   • SUS316L: Superior resistance to chloride stress corrosion (e.g., seawater rinse).
3. Custom Solutions:
   • Seal upgrades: PTFE/FDA silicone for high-temperature or chemical resistance.
   • Actuation options: Pneumatic/electric actuators for automated systems.

Keywords: Sanitary Weld Check Valve, Hygienic Backflow Preventer, SUS316L Check Valve, Butt-Weld Check Valve, Zero-Dead-Leg Valve, High-Purity Check Valve.