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CE Certification Dual Plate Check Valve, Reliable Backflow Prevention Device Suppliers, Manufacturer
Product Description
Product Size & Engineering Parameters
Standard Size Range
1/2" ~ 10"
Working Pressure
PN16
Operating Temperature
-20ºC ~ 230ºC
Applicable Medium
Water, Oil, Gas, Acid
Casting Specifications: Size 1/2" - 4" Investment Casting | Size 5"-10" Composite Casting
Design & Shell Thickness: ASME B16.34 Standard
Inspection and Testing: MSS SP-110 / EN 12266
| Standard Specification Details | Material & Testing Parameters | ||
|---|---|---|---|
| Size Range | 8"-60" (DN200-DN1500) | Body Material | WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316 |
| Pressure Rating | Class150 - Class900 / PN10 - PN40 | Disc Material | WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316 |
| End Connection | Flange (RF, RTJ) | Seat Material | EPDM, NBR, PTFE, hard seal |
| Structure Style | Full Port | Stem Material | A182 F6a, 410, 420, 304, 316, 17-4PH, F11, etc. |
| Actuator Options | / | Design Standard | API 594, API 6D |
| Temperature Range | -50℃ ~ 650℃ | Face to Face Standard | ASME B16.10 / API 594 |
| Connection Standard | Flange Drilling: ASME B16.5, ASME B16.47 | Test Standard | API 598 |
Packaging & Export Delivery
Frequently Asked Questions (FAQ)
What design and testing standards do these valves conform to?
Our valves are engineered strictly compliant with API 594, API 6D, and ASME B16.34 standards. Every valve undergoes high-pressure hydrostatic and leakage inspection based on API 598 and MSS SP-110 / EN 12266 before delivery.
Which materials are recommended for corrosive or high-temperature media?
For corrosive or acid applications, stainless steel alloys such as CF8, CF8M, CF3, CF3M, F304, and F316 are available. For high-temperature duties up to 650°C, alloy components such as F11 and hardened stem materials (17-4PH, 410) paired with metallic hard seals provide optimal reliability.
What pressure classes and diameter dimensions are covered?
Standard casting sizes range from 1/2" up to 10" with a standard working pressure of PN16. For larger-scale and heavy industrial pipelines, diameters span from 8" to 60" (DN200 - DN1500) covering pressure classes from Class 150 to Class 900 (PN10 - PN40).
What are the flange drilling and end connection options?
The valves are configured with Raised Face (RF) or Ring Type Joint (RTJ) flanged ends. Flange drilling patterns fully comply with ASME B16.5 for smaller pipelines and ASME B16.47 for large diameter lines.
How are the products packaged for long-distance international shipment?
Each valve is cleaned, fitted with protective end flange covers, wrapped in moisture-resistant film, and securely anchored in fumigation-free solid wooden crates to prevent damage or shifting during ocean and land freight.
