Plastic Pneumatic U type three way Diaphragm Valve according ASME BPE

Plastic Pneumatic U type three way Diaphragm Valve according ASME BPE

Specifications

Description
Various configuration of Diaphragm valve

Pneumatic Operation
1. Didaphragm valve with Positioner/Process Controller(IL-TOP)
2. Diaphragm valve with Control Unit(C-Top) Mimi C top
3. Valve position Regulator
4. Position Sensor Module
5. Stainless steel actuator
6. Plastic Actuator

Electric Operation
7. Electric Diaphragm valve

Manual Operation
8. Plastic Handle`
9. Stainless steel handle

Valve Body Material
10. Body: Casting / Forging

Applications:
Diaphragm valves, manually or pneumatically operated, are specifically designed for use on hygiene and aseptic processes in the pharmaceutical industries.
The valve is excellent for flow control as well as open/close control.
The diaphragm valves are better in feature of flow in comparison with other valves. It is eaiser to clean up and better to process the substance with particles. The phenomenon of air pocket is rare during application of flow control.

Valve body:
Forging body blank is through a piece of stainless steel ingot, in the forging process, along with the high temperature forging provide, through extrusion blank shape change, through the forging after body density higher, the structure is more uniform, no sand hole and other impurities. Then through the processing centre carry on the high precision maching.

Casting body is made by the mould paraffin wax model, paraffin wax model infitration in ceramic, to let the whole body wax mold surface form a layer of strong ceramic. Melt wax mold, then into the melting of the stainless steel solution, after cooling knock off the appearance of ceramic, blank body is made uo.Casting size is very accurate, the outward appearance is a smooth, clean and tidy.

Operating Principles

1. The diaphragm provide the body seal as well as the seat seal. There are no paths to the outside environment, so it suitable for aseptic processes

2. When the valve is closed a pressure pad 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 of the flow path through the body.

3. The inter relationship of body to the pressure plate prevents over compression of the diaphragm

4. The valve can be manual operation and pneumatic operation control tops of solenoid valves

Cetificate of Diaphragm valve

1.All synthetic resin and additive are comply with FDA Certification.

2.Material chemical composition, physical properties and manufacturing process are documented.

3.3-a consistency the authentication

4.CE-PED/97/23/EC

5.EN 10204-3.1

Diaphragm of the valve

1. EPDM+PTFE( Adhesive)Diaphragm tablet have high chemical resistance, high stability, good flexibity, long life, high sealing, no code degeneration, and not effected by temperature fluctuations excellent performance, whether it is thermal cycle, cold cycle, or steam disinfection system.

Sepcification: 1-3", DN20-DN80

Temperature :-20 to 120degree

2. EPDM+PTFE (Seperate) It can reduces the diaphragm tolerance and proling the service life of the diaphragm

Sepcification: 1-4", DN20-DN100

Temperature :-20 to 150degree

3 Single seal (EPDM/SILICONE/FPM), Rubber diaphragm embedded a layer of vulcanized fiber layer enhance its mechanical properties, then diaphragm in pressure and temperature hase high seal stability, reinforcing fiber hardening in stainless steel bolt, so as to ensure better rubber and metal bond together. So it is suitable for use in vacuum environment.

Sepcification: 1-4", DN20-DN100

Temperature :-10 to 120degree

4. Mini type diaphragm gasket ( EPDM, SILICONE,FPM, EPDM+PTFE)

Sepcification: 1/4"-3/4", DN6-DN15

Temperature :-20 to 150degree

Surface Treatment :

1.For mechanical polished : Inner Ra＜0.5μm, Outside : From 1-4" Sandblasting, Below 1" with mirror polished

If Need more inforamtion, please contact us directly.

Tag: Donjoy Valves, Diaphragm valve, BPE Valve

Donjoy was founded in 1993, with registered capital RMB105.58 million(about 15million USD) We focus on developing high-precision PID valve positioner, Valve Control unit, Valve Position feedback device, intelligent automatic control valve, proportional valve, process control valve, high purity pump, homogeneous mixing pump, cleaning technology, pressure vessel, pipeline safety control technology, high clean pipe fitting&pipeline accessories and integrating r&d, production and sales as an integrated national high-tech enterprises. Donjoy’s products are widely used in bio-pharmaceutical, food and beverage, wine, fine chemicals and other industrial fields. Donjoy’s leading technology and innovation solutions meets growing demand in the industry of bio-pharmaceutical, food and beverage from the whole world, special emerging market.

Raw material, processing technology, welding technology, surface treatment and other technology from Donjoy have achieved advanced level in international market. It also complies with a series of international standards and specifications such as ASME BPE, EHEDG, FDA and 3A , It has passed the EU Pressure Equipment Directive (PED-97/23/EC) and (MD-06/42/EC) issued by the German TÜV organization; the 3-A health standard certification issued by the 3A organization; China Safety Valve Special Manufacturing Equipment (TS) License , China Quality Certification Center (CQC) and Quality Management System Certification (ISO9001:2015) and many other international authoritative certifications.

With advanced technology, excellent quality and perfect after-sales service system, Donjoy was awarded as National High-tech Enterprise, Provincial Famous Trademark, Science and Technology Enterprise, Innovative Enterprise, Patent Demonstration Enterprise, R & D Center Enterprise, AAA Credit Enterprise and many other honorary

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