Applications
- Diaphragm valves manually or pneumatically operated,and specifically designed for use on hygienic and aseptic processes in the pharmaceutical industries.
- The valve is excellent for flow control as well as for open/close.
- The diaphragm valves are better in eature of flow in comparison with other valves.It is easier to clean up and better to process the substance with particles.The phenomenon of air pocket is during rare application of flow control.
Operating Principles
- The diaphragm provids the body seal as well as the seat seal. There are no paths to the outside environment,so it suitable for aseptic processes.
- When the valve is closed,a pressurepad which supports the diaphragm moves towards the sealing face on the body.When the pressure plate moves the diaphragm flexes and is forced down onto the seat area in the centre of the body thus closing off the flow path through the body.
- The inter relation ship of body to the pressure plate prevents over compression of the diaphragm.
- The valve can be actuated either manually or pneumatically controlled by control tops of solenoid valves.
Certificates
- All syntheticresin and additive arecomply with FDA certification.
- Material chemical composition,physical properties and manufacturing process are documented.
- All diaphragm seal consistency with FDA certfficate.
-21-CFR-FDAI77.1550 perfluorocarbon synthetic resin
-21-CFR-FDA-177.2600 rubber
- USP28 class VI CHAPTER 87 IN VITON and CHAPTER ·88 IN-VITON consistency the authentication
- 3-A consilstency the authentication.
- EN 10204-3.1
- Domestic hygiene license
- CE-PED/97/23/EC
Relations Between Flow Rate And O.d
- KV is a data of the flow rate.The data describes valve flux when the water of 5℃ to 30℃ in the pressure difference for 1bar.
- KV data is the valve flow open.
The diaphragm valve flow/choice(opening f) chart.
Q(M³/h)Q=KV*4P
Note:the above chart suitable for,medium:water(20℃)
- Surface polishing
- Ra=roughness
- Average roughness Ra data is used as a measure of valve body surface finish of a parameter.
- LT5.6mm length/measurement Lc0.8mm for five measuring.
- Roughness obtained average roughness Ra data.
- According ASMEBPE table to classified.
Schematic Diaphragm Mounting Angle
According to the structure feature,which makes for complete drain after cleaning and keep no residue.
