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Wholesale Dual Plate Flange Type Check Valve Factories, Factory
Product Description
Advantages
Close quickly before pump stop, eliminate the water hammer of the backflow medium, prevent the damage of the system shock.
Can be installed both vertical and horizontal.
Valve seat can be resilient material or metal material. It's optional according to the medium.
Small Volume, light weight, need less space.
This valve should be install to the outlet side of the pump to prevent the backflow of the medium. This valve is one way flow direction.
This valve is tightly sealed, without leakage under the water pressure test. Safe and reliable in operation, High interference-resistance.
Corrosion Protection
- Coating: Inside and outside epoxy coating
- Applicable temperature: -196℃ - 540℃ (different raw material for different work temperature)
- Applicable medium: Water, oil, gas and other causticity medium (different raw material for different medium)
- About this product: Should meet the standard for BSEN1092 PN10 or PN16
Product Performance Specification
| Nominal Diameter | DN50(2”) ~ DN150(6”) | DN200(8”) - DN600(24”) | |
| Nominal Pressure | 1.6MPa | 1.0MPa | |
| Press test | Shell test | 2.4MPa | 1.5MPa |
| Seal test | 1.76MPa | 1.1MPa | |
| Operation temperature | -20 ~ +120℃ | ||
| Design and manufacture | API594, API 6D, JB/TB8937 |
| Face to face and end to end | API594, API6D, DIN3202, JB/T8937 |
| Pressure-temperature rating | ASME B16.34, DIN2410, GB/T9124, HG20625, SH3406, JB/T74 |
| Inspection and test | API598, JB/T9092 |
| Pipe flange | JB/T74~90, JB/T9112-9124, HG20592~20635, SH3406, ASME B16.5, DIN2543~2548 |
Main Component Materials
| No. | Components Name | Material |
|---|---|---|
| 1 | Screws | C.S |
| 2 | Valve body | Ductile cast iron + EPDM |
| 3 | Valve plate | CF8M |
| 4 | Spring | SS316 |
| 5 | Valve stem | SS316 |
Packaging
Frequently Asked Questions
Can this valve be installed in any orientation?
Yes, this valve is designed for versatile piping setups and can be installed in both vertical and horizontal orientations.
Where is the recommended installation position for this check valve?
It should be installed on the outlet side of the pump. It operates with a one-way flow direction to stop backflow and protect the system against hydraulic shock.
How does the valve help eliminate water hammer?
The valve features a rapid response mechanism that closes quickly before the pump completely shuts down, preventing backflow impact and dampening potential water hammer damage.
What materials are used for the main valve parts?
The standard components comprise a Ductile Cast Iron + EPDM body, a CF8M stainless steel valve plate, and SS316 for both the spring and the valve stem. Screws are carbon steel (C.S).
What media and operating temperatures can this valve withstand?
Depending on the specific raw material configurations selected, it handles water, oil, gas, and corrosive media across temperature ranges from -196℃ up to 540℃ (standard operation temperature rated at -20℃ to +120℃).
Which flange and manufacturing standards does the valve comply with?
It meets design standards such as API 594, API 6D, DIN 3202, and JB/TB8937, with flange connections adhering to BS EN 1092 PN10/PN16, ASME B16.5, and DIN 2543-2548.
