NUOMENG is able to provide solutions in terms of sanitary valves and pipeline engineering system for customers in different fields, including pharmaceutical and biotechnology, food and beverage, microelectronic and semiconductor as well as chemical industries.
Recent years have seen some great improvements in the purity and quality of food and pharmaceuticals in China, and more strict regulations and approval requirements have been established. We are proud to be a part to make those improvements happen.
Surface Roughness
The standard requirement for the interior surface roughness of aseptic diaphragm valves is Ra ≤ 0.4 μm. But we can also realize Ra ≤ 0.8 μm and Ra ≤0.25 μm if customers have specific requirements. For forged products, the requirement of exterior surface roughness is not that rigorous. It only has to realize Ra ≤ 0.8 μm or Ra ≤ 0.4 μm.
All surfaces can be electropolished to even reduce the roughness.
Recent years have seen some great improvements in the purity and quality of food and pharmaceuticals in China, and more strict regulations and approval requirements have been established. We are proud to be a part to make those improvements happen.
If diaphragm valves are to be applied in pharmaceutical, semiconductor, microelectronic and new chemical industries, the valves have to be aseptic and stainless steel to make sure the media is extremely purified. Thus, aseptic stainless steel diaphragm valves, whose design enables them to sterilize and pasteurize the medium, can be applied to process WFI, ultra-purified chemicals, intermediate or final products in pharmaceutical, biotechnology and food industry.
1.The diaphragm is evenly fixed in PTFE with a screw. Compared to clamp connection, the biggest advantage of using a screw is that the screw transfers the force evenly to a large area of the flange, which prevents damage to the mechanical connection between diaphragms, especially under vacuum operating conditions.
2.The elastic PTFE diaphragm facilitates an even flow and allows for subsequent replacement of the diaphragm yet without replacing the actuator.
3.Soft elastic diaphragm consists of a mixture of EPDM rubbers.The mixtures have been vulcanized so that the diaphragm can be safely used even at high media temperatures.
The diaphragms are equipped with different technical characteristics depending on the mixture used and the processing conditions, such as the crosslinking process, vulcanization temperature and pressure.Soft elastic materials conforms to the following principle: the higher the temperature the load capacity, the shorter the service life and the smaller mechanical stress.Therefore, the temperature load and deformability of the diaphragm must be optimally adjusted to the actual application.
4.Features of Soft Elastic Diaphragms include: in the event of mechanical contamination, passage of highly insensitive working media, such as cellular agglomerates, solid matter or catalytic solid matter, and slurries, generally does not affect the function of the valve or the sealing on the valve barrage. Different EPDM compounds can be selected based on different operating/sterilization temperature and chemical properties of the working media.
RG diaphram valve is a series of sanitary diapgram valve, it is widely used on wine, dairy products, beverage, foodstuff industry, pharmacy etc. Achieving the requirement of control and open/close for the pipeline system.
The diaphragm is close under normal state,and that moment ,the diaphragm clung to the valve body cavity,and closing off the flow path through the pipeline.When the diaphragm valve have the requirement to clean or open,the valve stem moves upwards according to the manual or pneumatic actuator equipment,spherical diaphragms naturally bend upwards,so that the valve is open and reach the requirement of clean and open.
The diaphragm make the lower body cavity and the upper chamber separated from the valve cover,so that the stem at the top of the diaphragm,dis media and other parts from corrosion,eliminating the need for packing structure,and no media leaks.The optimize valve body made the cleaning liquid flow out totally,so that don't have any entrapment.
Standard Design:
Standards:DIN,3A,SMS,ISO/IDF,BS/RJT,ASME/BPE etc.
The parts of valves:an actuator,diaphragm and body which assemble together with bolts and nuts.The entire valve assembly in meticulously.The actuator can be manual and pneumatic,the diaphragm made of artificial rubber which can have all kinds of soft and hard degree.The body can be two way or three way.
Connection:clamp,weld,T-type tee,U type tee etc.
Materia
Steel componens: Stainless steel 304, stainless 316L
Seal: EPDM+PTEE the seals are imported seal material (which conform to the FDA177.2600standard).
G01C Series
• Suitable for inert and corrosive liquid and gaseous media
• Support CIP/SIP
• Pasteurized
• Valve body and diaphragm are available in a variety of materials
• Stepless minimum flow regulation by hermetic regulator
| Technical Parameters: |
| Operation |
Stainless steel handwheel, regulator & position indicator |
| DN |
DN65-DN100 |
| Body |
one-channel body, T-shaped body, tank bottom type body, multi-channel body |
| Body Material |
ASTM A351: CF3M |
ASTM A182: F316L 904L 2205 2507 |
| |
ASTM B564: C276 C22 |
GB/T 2965 TA2 TA10 |
| Cap and Core Material |
ASTM A351 CF8 |
| Connection |
Welded, Clamped & Flange |
| Operation Pressure |
DN4-DN100 PN10bar AISI:145psi |
| Operation Temperature |
Dependent on diaphragm materials |
| Diaphragm Material |
EPDM+PTFE separate type: temperature range -10~135ºC; steam sterilization at 150ºC with no time duration limited. |
| |
EPDM+PTFE compound type: temperature range -10~100ºC; steam sterilization at 135ºC with every cycle reaching 60min |
| |
EPDM type: temperature range -10~100ºC; steam sterilization at 135ºC with every cycle reaching 60min |
| Medium-contacting inner surface roughness: ≤Ra0.4μm ≤Ra0.25μm |
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