Nyhau Fluid Equipment Co.,Ltd
Nyhau Fluid Equipment Co.,Ltd
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Hygienic Pneumatic Diaphragm Valve Controlled By Control Units And Solenoid Valves
Descriptions:
The diaphragm provides the body seal as well as the seat seal. There are no paths to the outside environment and, as such, the valve is suitable for aseptic processes. When the valve is being closed, a pressure pad which supports the diaphragm moves towards the sealing face on the body. As 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 valve can be actuated either manually or pneumatically and controlled by control units and solenoid valves.
A standard diaphragm valve is used to shut the flow of a line, an NDL type valve shuts only one outlet of the main line.
Applications:
Diaphragm valves, ,manually or pneumatically operated, are specially designed to use on hygienic and aseptic processes in the pharmaceutical industries, The valves is excellent for flow control as well as for on/off duties. Diaphragm valves are widely applied to CIP/SIP.
Operating principles:
The diaphragm provides the body seal as well as the seat seal. There are no paths to the outside environment and as such the valve is suitable for aseptic processes.
As the valve is closed a pressure pad which supports the diaphragm moves towards the sealing face on the body. As the pressure plate moves the diaphragm flexes and is forces down onto the seal area in the centre of the body thus closing off the flow path through the body.
The inter-relationship of body to the pressure plate prevents over compression of the diaphragm. The valve can be actuated either manually or pneumatically are controlled by control tops and solenoid valves.
Technical parameters:
Working temperature: -10℃ to +120℃
Parts in contact with the handling material: SS316L,
Other stainless steel parts: SS304
Size: 1”- 4”
Connection standards: DIN, SMS, IDF, ISO, 3A, BPE
Connection type: weld, clamp, thread, flange
Body type: Inline, T type, U type
Driving mode: manual or pneumatic
Diaphragm material: EPDM, Silicone, EPDM +PTFE (double diaphragm) . All are FDA approved.
Internal surface finish: Ra ≤0.5μm
External surface finish: Satin/bright.
Technical Specifications:
| Max.Pressure | 10bar(145PSI) | ||||
| Working Pressure | -10°C to +120°C(EPDM) | ||||
| -14°F to 248°F | |||||
| +140°C(SIP,MAX.30MIN)284°F |
Size Range:
| SIZE | DN | D | A | H | J |
| DN20 | 22.4 | 25.4 | 145.4 | 174.5 | 130 |
| DN25 | 26 | 29 | 145.4 | 174.5 | 130 |
| DN32 | 32 | 35 | 178.8 | 179.2 | 130 |
| DN40 | 38 | 41 | 178.8 | 214.4 | 160 |
| DN50 | 50 | 53 | 198.4 | 224 | 160 |
| DN65 | 66 | 70 | 259 | 311 | 160 |
| DN80 | 81 | 85 | 297 | 311 | 160 |
| DN100 | 100 | 104 | 348 | 305 | 160 |
| 1” | 22.4 | 25.4 | 145.4 | 174.5 | 130 |
| 1.25” | 28.8 | 31.8 | 178.4 | 179.2 | 130 |
| 1.5” | 35 | 38 | 178.4 | 214.4 | 160 |
| 2” | 47.8 | 50.8 | 198.4 | 224 | 160 |
| 2.5” | 59.5 | 63.5 | 259 | 311 | 160 |
| 3” | 72.2 | 76.2 | 259 | 311 | 160 |
| 3.5” | 85 | 89 | 297 | 311 | 160 |
| 4” | 97.6 | 101.6 | 348 | 305 | 160 |
