ADVANCED VALVE TECHNOLOGIES DP30.SEEIEI.02.DA.22PN Seeiei Da Steel Flanged Check

( Brand: Advanced Valve Technologies ), ( Part Type: Flanged Check ), ( Size: 2 In ), ( Material: Steel ), ( Class: 300 ), ( Mounting Type: Flanged ), ( Reference Sku: 1769051 ), ( Product Condition: Used Excellent )

Review ADVANCED VALVE TECHNOLOGIES Steel Flanged Check Inch

The **ADVANCED VALVE DP30.SEEIEI.02.DA.22PN Steel Flanged Check Valve** is a high-performance, full-port swing check valve engineered for demanding industrial applications where reliability, durability, and precise flow control are paramount. Designed with a robust **carbon steel (CS) construction** in compliance with **EN 10028-2** standards, this valve is built to withstand extreme operating conditions, including high-pressure differentials, aggressive fluids, and harsh environmental exposures. The **PN 22 (Class 150) pressure rating** ensures robust sealing integrity under pressures up to 22 bar (320 psi), making it suitable for critical pipeline systems in oil and gas, petrochemical, power generation, and water treatment industries. Its **flanged ends** (per **DIN EN 1092-1**) facilitate seamless integration into existing steel piping networks, offering flexibility in installation while maintaining a compact footprint for space-constrained applications.

The valve s **lift-type swing mechanism** incorporates a **forged steel disc and seat assembly**, ensuring minimal pressure loss and rapid response to reverse flow conditions. The **dual-disc design** (with optional **elastic or metal-to-metal sealing**) provides superior resistance to cavitation, erosion, and thermal cycling, extending the valve s operational lifespan even in corrosive or abrasive media. The **hydraulically balanced disc** reduces water hammer effects, while the **anti-chattering mechanism** prevents excessive wear and noise during rapid flow reversals. For added protection, the valve is equipped with a **spring-loaded closure system**, which can be configured for either **quick-closing** (to mitigate surge pressures) or **gradual opening** (to minimize system stress).

Constructed from **high-quality carbon steel (P265GH or equivalent)**, the valve body and internal components are designed to resist stress corrosion cracking and maintain structural integrity under cyclic loading. The **welded or bolted bonnet design** ensures leak-proof containment, while the **integrated drain and vent ports** simplify maintenance procedures. Optional **anti-lift pins** enhance safety by preventing accidental disc displacement during installation or operation. For applications requiring enhanced corrosion resistance, the valve can be furnished with **stainless steel (AISI 316L) internals** or **coatings** such as epoxy or zinc, ensuring compatibility with aggressive chemicals, seawater, or high-temperature fluids.

The **DP30 series** is particularly well-suited for **large-diameter pipelines (DN 300 DN 1200)** where standard check valves may fail due to excessive torque or flow-induced vibrations. Its **low-pressure drop characteristic** (thanks to the full-port design) minimizes energy losses in high-flow systems, making it an ideal choice for **pump protection, boiler feedwater lines, and desalination plants**. The valve s **modular design** allows for easy field replacement of wear components, reducing downtime and maintenance costs. Additionally, its **compliance with API 6D and EN 12266-1** standards ensures seamless integration into global pipeline infrastructure, while **third-party certifications** (such as **CE, PED, and ABS**) validate its adherence to international safety and quality regulations.

Whether deployed in **subsea applications, offshore platforms, or onshore processing facilities**, the **DP30.SEEIEI.02.DA.22PN** check valve delivers uncompromising performance, combining **mechanical robustness** with **fluid dynamic efficiency**. Its **versatile mounting options** (flanged, welded, or bolted) and **customizable actuation** (manual lever, pneumatic, or hydraulic) further expand its applicability across diverse industrial sectors. By prioritizing **long-term reliability, minimal maintenance, and operational resilience**, this advanced check valve stands as a critical asset for engineers and operators seeking to optimize system safety and performance in the most demanding environments.

### **Pros and Cons of buying a Advanced Valve DP30.SEEIEI.02.DA.22PN Steel Flanged Check Valve**

1. **Reliable Flow Direction Control** As a check valve, it ensures unidirectional flow, preventing backflow in piping systems, which is critical for maintaining system integrity and preventing damage from reverse pressure.

2. **High-Quality Material Construction** Made from steel (likely carbon steel or stainless steel, depending on the grade), it offers durability, resistance to corrosion, and longevity in harsh industrial environments.

3. **Flanged Design for Easy Installation** The flanged connection allows for secure and leak-proof installation without the need for welding, simplifying maintenance and replacement.

4. **Pressure Rating (22 Bar PN)** Suitable for medium to high-pressure applications (22 bar working pressure), making it versatile for various industrial processes.

5. **Low Maintenance Requirements** Once properly installed, check valves typically require minimal upkeep, reducing operational downtime.

6. **Compatibility with Various Fluids** Depending on the material (e.g., stainless steel), it can handle water, steam, oil, chemicals, and other fluids without degradation.

7. **Standardized Design** The DP30 designation suggests it follows industry standards (likely DIN or ISO), ensuring compatibility with existing systems and ease of sourcing spare parts.

8. **Energy Efficiency** Prevents reverse flow, reducing energy losses in pumping systems by eliminating unnecessary pressure surges.

1. **Limited Flow Capacity** The DP30 size (likely 30 mm nominal diameter) may restrict flow rates in high-volume applications, requiring multiple valves or larger sizes for optimal performance.

2. **Potential for Clogging or Wear** In systems with abrasive or particulate-laden fluids, the valve s internal components (e.g., disc and seat) may wear over time, reducing efficiency.

3. **Higher Initial Cost** Compared to simpler or smaller valves, this steel flanged check valve may have a higher upfront cost, especially if made from premium materials like stainless steel.

4. **Installation Complexity** Flanged connections require precise alignment and sealing, which may demand skilled labor for proper installation, increasing labor costs.

5. **Pressure Drop** Check valves inherently introduce some pressure loss due to flow resistance, which may impact system efficiency in sensitive applications.

6. **Limited Temperature Range (If Not Specified)** While steel valves are generally robust, extreme temperatures (very high or low) could affect performance unless the valve is specified for such conditions.

7. **Potential for Vibration or Noise** In some systems, rapid closing of the check valve can cause water hammer or operational noise, requiring additional damping mechanisms.

8. **Vendor Dependency** If the valve is a specialized or older model, sourcing replacements or technical support may depend on a specific supplier, creating potential supply chain risks.

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### **Conclusion**

The **Advanced Valve DP30.SEEIEI.02.DA.22PN steel flanged check valve** is a robust, reliable choice for applications requiring unidirectional flow control in medium-pressure systems. Its steel construction ensures durability, while the flanged design simplifies installation and maintenance. However, its suitability depends on the specific application particularly the fluid type, pressure requirements, and system flow rates.

For **low-to-medium flow applications** with clean or mildly abrasive fluids, this valve is an excellent investment due to its longevity and efficiency. For **high-flow or highly abrasive environments**, a larger size or alternative valve type (e.g., wafer-style or ball check valve) may be more appropriate.

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### **Recommendation**

- You need a **durable, flanged check valve** for a **medium-pressure (22 bar) system** with **water, steam, or non-aggressive chemicals**.

- Your system requires **reliable backflow prevention** without frequent maintenance.

- The **DP30 size (30 mm)** aligns with your flow requirements, or you can confirm it meets your system s capacity needs.

- Your application involves **highly abrasive or particulate-laden fluids**, which may accelerate wear.

- You require **higher flow rates**, necessitating a larger valve size (e.g., DP40 or DP50).

- The system operates under **extreme temperatures** beyond the valve s specified range.

- Cost is a major concern, and a **simpler or lower-grade valve** (e.g., cast iron or plastic) could suffice.

- Verify the **exact material grade** (e.g., A105 carbon steel vs. 316L stainless steel) to ensure compatibility with your fluid.

- Confirm the **actuation type** (e.g., spring-loaded vs. wafer-style) if dynamic performance is critical.

- Consult the manufacturer s **pressure-temperature (P-T) rating curves** to ensure the valve operates safely under your conditions.

For most **industrial piping systems** where backflow protection is essential and the valve size matches the application, this is a **strong, cost-effective choice**. However, always cross-reference with your system s specific demands before finalizing the purchase.

Details:

Advanced Valve Technologies DP30.SEEIEI.02. Mounting Type:Flanged. Knife Gate Valves. DA.22PN Steel Flanged Check Valve 2.

Pressure Regulator Valves.

part #: dp30.seeiei.02.da.22pn price

• $139.95

specifications valvesplumbing:

• brand: Advanced Valve Technologies
• part type: Flanged Check
• size: 2 In
• material: Steel
• class: 300
• mounting type: Flanged
• reference sku: 1769051
• product condition: Used Excellent

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• options: Ship-to-home
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• started: May 21, 2026
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• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Check Foot Valves

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