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CE Certification Compact Wafer Lift Check Valve with Low - Pressure Drop Supplier, Manufacturers
Product Description
Product Overview & Specifications
Size Range
1/2" ~ 10"
Working Pressure
PN16
Working Temperature
-20ºC ~ 230ºC
Applicable Medium
Water, Oil, Gas, Acid
Manufacturing Process
1/2" - 4" Investment Casting
5" - 10" Composite Casting
5" - 10" Composite Casting
Design & Testing Standards
ASME B16.34 (Design & Wall Thickness)
MSS SP-110 / EN 12266 (Inspection)
MSS SP-110 / EN 12266 (Inspection)
Product Usage and Features
The wafer lift check valve adopts a wafer connection with a compact structure. The valve disc moves up and down along the center positioning. Since the valve disc has a short closing stroke and is spring-loaded, the closing speed is fast, which can significantly reduce the water hammer phenomenon. The check valve is also called a one-way valve, a non-return valve, a reverse flow valve, etc. Its performance principle is the same, and it mostly plays the role of preventing the backflow of the medium in the pipeline. The wafer lift check valve has the characteristics of small size, light weight, sensitive action, reliable sealing, and easy installation. It is particularly suitable for occasions with limited installation space and can be used for a variety of media such as water, steam, oil, nitric acid, acid vinegar, and strong oxidizing media.
Product Performance Specification
| Nominal Pressure Pn | Shell Pressure | Seal Pressure | Applicable Media | Applicable Temperature |
|---|---|---|---|---|
| 1.0 / 1.6 / 2.5 / 4.0 / 6.4 / 10.0 / 16.0 MPa | PN × 1.5 times | PN × 1.1 times | Water, steam, oil, etc. | -29 ~ 425℃ |
| Corrosive substances such as nitric acid | -196 ~ 540℃ | |||
| Strong oxidizing property | -196 ~ 425℃ | |||
| Acetic acid and other corrosive | -196 ~ 540℃ | |||
| Urea and other corrosive | -196 ~ 455℃ |
Main Component Materials
| Valve Body | Valve Disc | Press Ring | Spring |
|---|---|---|---|
| WCB (A105) | 2Cr13 | 2Cr13 | 0Cr18Ni9 |
| ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 0Cr19NiP |
| CF8 (304) | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 |
| CF3 (304L) | 00Cr19Ni10 | 00Cr19Ni10 | 00Cr19Ni10 |
| ZG1Cr18Ni12Mo2Ti | 1Cr18NiMo2Ti | 1Cr18Ni12Mo2Ti | 0Cr18Ni12Mo2Ti |
| ZG1Cr18Ni12Mo2Ti | 1Cr18NiMo2Ti | 1Cr18Ni12Mo2Ti | 0Cr18Ni12Mo2Ti |
| CF3M (316L) | 00Cr17Ni14Mo2 | 00Cr17Ni14Mo2 | 00Cr17Ni14Mo2 |
Packaging
Frequently Asked Questions
What is a wafer lift check valve and how does it prevent reverse flow?
A wafer lift check valve is a non-return valve installed between pipe flanges. The valve disc travels along a center positioning guide and relies on fluid forward pressure to open. When flow ceases or reverses, an integrated spring assists in rapid disc closure, effectively preventing backflow and mitigating water hammer.
What manufacturing standards and testing procedures are applied?
The valve complies with ASME B16.34 standards for general design and wall thickness parameters. Pressure, integrity, and functional testing are executed according to MSS SP-110 and EN 12266 specifications.
What are the main installation benefits of the wafer style design?
The wafer connection structure is lightweight and features a minimal face-to-face length. It requires less space than traditional flanged check valves, making it ideal for compact piping configurations and reducing overall line weight.
Which media and operating temperatures can this check valve accommodate?
Depending on the chosen component materials, the valve can handle water, oil, gas, steam, nitric acid, acetic acid, and urea across an operating temperature range extending from -196℃ up to 540℃.
What material configurations are available for corrosive environments?
For corrosive or oxidizing media, stainless steel and alloy configurations including CF8 (304), CF3 (304L), CF3M (316L), and titanium-stabilized grades (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti) are available for both the body and internals.
