Product Description
Our PTFE Lined Check Valve with Sight Glass is a backflow prevention valve specifically designed for highly corrosive media. The valve body is lined with polytetrafluoroethylene (PTFE), which can withstand the corrosion of various chemical media such as acids, alkalis, and strong oxidants. The built-in sight glass allows real-time observation of the media flow status, ensuring safe and controllable process operation.
Our PTFE Lined Check Valve with Sight Glass is widely used in acid and alkali liquid pipeline systems in various industries, including chemical, pharmaceutical, electroplating, pesticide, metallurgy, and environmental protection.
Technical Parameters
| Item | Specification |
|---|---|
| Nominal Diameter | DN15 – DN300 |
| Pressure Rating | PN10 / PN16 |
| Connection Type | Flanged (GB / ANSI / DIN standards available) |
| Body Material | Carbon Steel / Stainless Steel with PTFE lining |
| Lining Material | PTFE / PFA |
| Temperature Range | -40℃ to +200℃ (depending on lining material) |
| Applicable Media | Strong acids, alkalis, organic solvents, and corrosive gases or liquids |
FAQ
Q1: Can valves be used in vacuum lines?
A1: Yes, they can be used in vacuum systems, but design confirmation is required based on specific negative pressure conditions.
Q2: How to maintain a check valve with a sight glass?
A2: It is recommended to clean the sight glass regularly to prevent crystals or deposits from obstructing the view, and to check the sealing condition.
