non return valve for water tank
non return valve for water tank
non return valve for water tank
non return valve for water tank
non return valve for water tank

Stainless Steel shower Air Pump Non return Valve for water tank

JN-NRVSB-23-1001-27
Size: DN15–DN300
Grade: SS304 / SS316L
Standard: DIN, ANSI, GB, JIS
Working pressure: 1.0–1.6 MPa
Test pressure: 1.5× working pressure
Temperature Range: -20℃ to +180℃
PTFE seals: High corrosion & high temperature resistance
Viton seals: Excellent oil resistance, aging resistance & durability
Quantity:
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Stainless Steel Fuel Line Sewer Pipe Air Pump Non return Valve
 
Stainless Steel Fuel Line Sewer Pipe Air Pump Non return Valve are sanitary valves made of 304/316L stainless steel, featuring a wafer-type check structure and welded interfaces at both ends. They have a mirror-polished inner and outer surface, are easy to clean with no dead corners, and meet FDA and 3A standards. They are typically installed in clean fluid pipelines in the food, pharmaceutical, and beverage industries to prevent backflow and ensure production safety. Based on the connection method, they can be divided into welded and quick-connect types, and the sealing materials include EPDM and FKM. This valve effectively avoids cross-contamination caused by media backflow, ensuring the safe and efficient delivery of clean fluids.

The difference between Stainless Steel fuel non return valve and ordinary check valves is that the Stainless Steel Fuel Line Sewer Pipe Air Pump Non return Valve uses 304/316L stainless steel with a mirror-polished surface, making it easy to clean with no dead corners and meeting FDA and 3A sanitary standards. It is specifically designed for clean fluids, while ordinary check valves are mostly made of industrial-grade materials, which are prone to residue and difficult to clean. Our company's products surpass those of our competitors in welding technology, sealing reliability, and backflow prevention performance. We also support customized connections and material options, providing customers with safer and more efficient fluid transport solutions, thus giving us a competitive edge.

 Working Principle
The sanitary stainless steel non return valve for water tank consists of a valve body, valve disc, spring, sealing ring, and quick-connect clamps. It connects to the pipeline via welded interfaces at both ends or can be detachably connected using quick-connect clamps. After installation, it effectively prevents backflow of the medium, ensuring pipeline safety. Its working steps are as follows: when the medium flows in the forward direction, it pushes open the valve disc; when it flows in the reverse direction, the valve disc automatically closes under the pressure of the spring and the medium, blocking backflow. This valve has an automatic structure, requiring no manual, pneumatic, or electric drive. Welded or quick-connect connection methods can be selected according to requirements.
 

Accessories

 Component & Material Table
  • Valve body: Stainless steel SUS (304 / 316L)
  • Valve disc (check valve core): Stainless steel SUS (304 / 316L)
  • Spring:Stainless steel (316L), Hastelloy
  • Sealing ring: EPDM, silicone rubber, FKM (fluororubber), PTFE
  • Quick-release clamp (optional): Stainless steel SUS (304)
  • Gasket:EPDM, PTFE
  • Fasteners:Stainless steel SUS (304)
Product Parameter Details
  • Structural Form: Sanitary stainless steel welded check valve, wafer-type check structure, welded interfaces at both ends, quick-release clamp optional, no external drive unit.
  • Pressure Range: 0.1~1.6MPa (depending on specifications and materials, including atmospheric to medium pressure clean fluid conditions).
  • Main Functions: Automatically prevents backflow of media, ensuring pipeline safety and cleanliness, and avoiding cross-contamination caused by media backflow.
  • Applicable Levels: Sanitary / Clean (aseptic polishing and certification can be customized).
  • Specifications:ISO, ASME, GB/T, 3A, Enterprise Standards
  • Hygiene and Safety Rating: SUS 304/SUS 316L stainless steel, internal and external mirror polishing, seals comply with FDA, RoHS, and 3A hygiene standards.
  • Installation Direction: Can be installed horizontally or vertically (pump outlet or key nodes in the main pipeline), some models can be installed at an angle.
  • Customization:Diameter, material, sealing material, connection method (welding / quick-release / flange) can all be customized.

Digital advantages

  • Intelligent Backflow Warning:An integrated pressure monitoring module detects pipeline pressure fluctuations in real time. When a backflow trend is observed, an audible and visual warning is automatically triggered, preventing cross-contamination caused by backflow. Compared to traditional check valves, this reduces production safety risks by 60%.
  • Traceable Operational Data: An integrated IoT module automatically records valve opening frequency, response time, and seal wear data, generating electronic logs compliant with FDA 21 CFR Part 11 requirements. This enables full lifecycle data traceability, helping export companies meet international compliance reviews.
  • Flow Status Visualization:An optional flow monitoring module collects media velocity and flow data in real time and transmits it wirelessly to the central control system. This provides fully transparent monitoring of fluid transport status, precisely adapting to digital production lines in the pharmaceutical and food industries.
  • Remote Health Diagnosis:Supports remote status monitoring and fault diagnosis. Valve health can be assessed without on-site inspections, allowing for early prediction of issues such as seal aging and spring fatigue, improving maintenance efficiency by 70%.
  • Intelligent maintenance reminders: The built-in algorithm automatically generates maintenance plans and pushes reminders based on runtime and frequency of use, avoiding over-maintenance or under-maintenance and reducing the total lifecycle maintenance cost by approximately 25%.
Stainless Steel Fuel Line Sewer Pipe Air Pump Non return Valve
 
Feature (F)、Advantage (A)、Benefit (B)
  1. Raw Material:
  • F:Valve body, valve disc, and other components in contact with the media are all made of SUS 316L ultra-low carbon austenitic stainless steel. Springs are made of 316L stainless steel or Hastelloy. All metal parts meet ASTM A270 and EN 10204 3.1 certification standards.
  • A:316L stainless steel possesses excellent corrosion resistance and resistance to intergranular corrosion. It is non-magnetic and easy to clean, and can withstand acidic and alkaline media and high-temperature steam during CIP/SIP cleaning.
  • B:Ensures long-term stable operation of the product under harsh conditions such as in the food and pharmaceutical industries, avoiding media contamination caused by material precipitation or corrosion, and reducing production interruptions and compliance risks caused by material issues.
  1. Processing Technology:
  • F:Employs precision forging technology, ensuring the valve body is free of casting defects; the inner surface undergoes electrolytic polishing + mechanical fine polishing treatment, Ra... Value ≤0.4μm; outer surface can be mirror polished or matte finished; all welds undergo non-destructive testing and passivation treatment.
  • A:The forged structure eliminates the risks of sand holes and leakage associated with traditional cast valve bodies. The mirror-polished inner surface is free of dead corners and material residues, and passivation treatment further enhances corrosion resistance.
  • B:Completely eliminates sanitary dead corners, meeting the highest sanitary standards such as FDA, EHEDG, and 3A, significantly reducing CIP (Clean Air Intake) Cleaning time and consumable costs are reduced while simultaneously improving product lifespan and reliability.
  1. Structure Feature:
  • F:Employs a clamp-type check valve structure with a streamlined, dead-angle-free flow channel; both ends are welded joints, secured in the middle by quick-release clamps for easy disassembly, cleaning, and maintenance; the valve disc uses a bottom-mounted structure to eliminate the risk of external leakage.
  • A:The clamp-type structure is compact and occupies little space; the streamlined flow channel optimizes media flow and reduces pressure loss; the quick-release clamps facilitate quick assembly and disassembly, and the bottom-mounted valve disc enhances sealing safety.
  • B:Simplifies pipeline design, saves installation space and costs, avoids cross-contamination caused by media residue, fundamentally eliminates media leakage, and ensures production continuity.
  1. Core Accessory Feature:
  • F: The valve disc is integrally forged from 316L stainless steel, surface hardened, and precision ground, achieving an IT5 level fit with the valve seat; the spring is made of 316L stainless steel or Hastelloy, offering excellent fatigue resistance; the quick-release clamp is made of SUS304. Stainless steel, quick-lock design, easy disassembly and assembly
  • A:High-precision valve disc ensures zero leakage, hardening treatment improves wear resistance; high fatigue-resistant spring ensures rapid valve response, quick-lock clamp facilitates disassembly and cleaning
  • B:Significantly improves valve sealing reliability and service life, reduces the frequency of replacement of vulnerable parts, lowers total life-cycle maintenance costs, while ensuring safety and convenience during operation
  1. Seal Ring Feature:
  • F:The main seal uses an integrated EPDM/FKM/PTFE sanitary sealing ring, compliant with FDA 21CFR 177.2600 standards; the sealing ring adopts a dovetail embedded structure, with no adhesion and no risk of detachment; the check valve disc sealing gasket uses PTFE-coated EPDM composite material
  • A:The integrated sealing ring has no splicing gaps, the embedded structure ensures precise sealing position, and the composite seal has both temperature resistance and corrosion resistance, and is compatible with - Operating temperature range: 20℃~200℃
  • B:Completely eliminates the risk of leakage caused by seal failure, adaptable to various media and temperature conditions, eliminating the need for frequent seal replacements, ensuring production continuity and product purity.
 
Stainless Steel Fuel Line Sewer Pipe Air Pump Non return Valve
 
Maximum Flow Rate：0.8 – 150 m³/h
Maximum Pressure：PN16 – PN40 (16 – 40 bar)
Body Material：AISI 304 (1.4301), AISI 316L (1.4404)
Body Types：Sanitary Stainless Steel Welded Check Valve
Sealing Element：PTFE, EPDM, FKM, Metal-to-Metal (high purity, corrosion-resistant)
Actuation Type：Automatic (spring-loaded); no actuation required
Motor Brand：NA (Not Applicable)
Inlet & Outlet Sizes：1/2"– 4"(DN15 – DN100)
Max Temperature：-40°C (-40°F) to 232°C (450°F) (depends on seal material)
Surface Treatment：Ra ≤ 0.4 μm (mechanically polished as standard; electro-polished available
Certification：Ra ≤ 0.4 μm (mechanically polished as standard; electro-polished available
Connection type：Butt Weld End (primary), Tri-Clamp, Flanged available on request
Pressure Range：Butt Weld End (primary), Tri-Clamp, Flanged available on request
 
 
 
 

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