Product Overview
Double-flap check valve is suitable for pressure PNL.0 16.0MPa.The operating temperature is
-196-425°C in various operating conditions. Prevent backflow of media.
Structural Characteristics
- Short length, small volume and light weight of product structure;
- The sealing surface can be made of soft or hard sealing material with good sealing performance according to different working conditions;
- The opening pressure is very small, the disc can be fully opened under a very small pressure difference;
- Fast disc closing, low water hammer pressure;
- Horizontal or vertical pipe can be used for easy installation;
- The material of the parts and the form and size of the valve end face can be reasonably selected according to the actual working conditions or user requirements to meet various engineering requirements.
Execution Standard
Design specification: JB/T89
Structure length: JB/T8937
Flange connection: GB/T9113JB/T79.1HG/T205
Test and inspection: JB/T9092, GB/T13927
Performance Parameter
Nominal diameter: DN50~600mm
Nominal pressure: PN1.0~ 4.0mpa
Applicable temperature: -196~425℃
Main materials: WCB, ZG1Cr18Ni9Ti, CF8, CF3, CF3M, CF8M
Applicable medium: corrosive medium such as water, steam, oil, nitric acid, strong oxidizing medium, corrosive medium such as acetic acid, corrosive medium such as urea
Product Dimensions
