U-Type Three-Way Diaphragm Valve

Product Description

The structure features of the sanitary u-type three-way diaphragm valve are as follows:
1. The unique sealing structure of the aseptic diaphragm valve eliminates the sanitary dead angle and is beneficial to the automatic medium emptying and CIP/SIP process.
2. Aseptic diaphragm valve is recommended to be installed at an angle of 15 ~ 30(depending on different specifications) according to its structural characteristics, which is advantageous to completely discharge after valve cleaning and is not easy to cause liquid retention in the valve interior.
3. The valve body is machined with CNC precision, which ensures that the sealing surface of the valve cavity coincides with the solidity of the diaphragm, reduces the friction of the diaphragm, and prolongs the service life of the diaphragm. Valve cavity surface polishing according to customer requirements for mechanical or electrolytic polishing, polishing degree can reach 0.25 um.
4. The membrane made of soft elastic material will not react sensitively to the working medium which is polluted by fiber masses, solid particles, catalysts, etc. , in general will not affect the work of the valve and sealing. Different materials can be selected according to the temperature of work or disinfection and the chemical characteristics of the working medium.
5. Because different types of valves and materials will be used under different operating conditions, before choosing a valve body and diaphragm, it is necessary to analyze the application of a product, especially for chemical medicine applications, and high temperatures. Through valid chemical data or expert certification, the suitability of the material for testing. In order to ensure the safety of the use of products and long-term effectiveness.
6. The typical method of diaphragm fixation is screw fixation. In contrast to perforated fixing, this type of fixing distributes the force-bearing area over the entire surface of the bolt to prevent the mechanical connection of the diaphragm from being damaged under vacuum conditions.

Operating Principles

● The dlaphragm 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 vave is closed a pressure pad which supports the dlaphragm moves towards the salig face on the body.
When the pressure platle moves the dlaphragm 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 pneumaically Cortolled by control tops o solenold valves.

Cetificates

● AII synthetic resin and additive are comply with FDA, certification
● Material chemical composition,physical properties anl manufacturing process are documented
● All diaphragm seal consistency with FDA certficate
-21-CFR-FDA177.1550 perfluorocarbon synthetic resin
-21-CFR-FDA-177 .2600 rubber
● USP 28 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 C to 30°C in the pressure difference for 1 bar
● KV data is the valve flow open
● 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 ASME BPE table to classified