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.
Our products are widely applied in pharmaceutical, food and biotechnology fields. We set high standards for quality and devices designed, manufactured by or operated in our factory conform with the safety requirements in the aspect of sanitation and sterilization.
NUOMENG Technical Team tries to make sure that all necessary technical support is provided for every customer. To shorten the lead time, a countrywide distribution network and abundant inventories have been established. Meanwhile, we are constantly making improvements to optimize existing products and develop new products. Last but not the least, we are able to customize professional solutions according to different requirements of working conditions.
Valve bodies can be forged or cast with different materials.
Customers can choose valve bodies to be finely cast with material no. 1.4435 (CF3M) or forged with F316L. Or in different occasions customers also choose other materials because of different requirements, including 904L, 2205, 2507, C276, C22, TA2, TA10. In particular, multi-way valve body is always forged. T-type valve and multi-channel valve undergoes forging and CNC unibody machining.
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
T-shaped valve body has a barrage inside which is tangent to the internal contour line of the main channel, in a proper angle so that media can be discharged automatically and there is basically no retention. Preferably, T-shaped body is welded, in an annular way, vertically into the outlet of the main channel. The position ensures that the media can be easily drained. T-shaped body can also be applied in main loops, such as the sampling channel of DN50/DN15 sampling valve and the welded elbow of U-shaped three-way diaphragm (can be used for cleaning).
The cavity is molded into a whole body, with dead corners smaller than 1D. Being compact in design, when set up in a specific angle, the valve can achieve the maximum effect in drainage.
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.
NUOMENG is equipped with state-of-the-art equipment and a motivated service team, thus our clients can always get the best services. Our years of experience and in-depth dialogues with factory operators allow us to continue to optimize the design of diaphragm valves and their individual components.
Elastic Diaphragm
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. The elastic PTFE diaphragm facilitates an even flow and allows for subsequent replacement of the diaphragm yet without replacing the actuator
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. Different structural designs are available to achieve this. 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.
Our PTFE diaphragm (TFM1700) is known as the second-generation PTFE diaphragm. It offers maximum chemical resistance. Even under steam conditions, PTFE diaphragms wear much slower than soft elastomers. When the medium is hyperosmotic, a moderately larger bond is required for PTFE materials. Compared to normal diaphragms, PTFE diaphragms are softer and more elastic. Due to the higher rigidity of the work under high cyclic loads, the service life of the diaphragm may be shortened depending on the actual applications.
During the production of diaphragms, every process is strictly controlled. A random sampling of finished products completes a comprehensive testing cycle.
Raw materials are sourced only from selected suppliers, which are thoroughly tested in our in-house laboratory or external certification bodies. Raw materials are stored under controlled conditions.
Sanitary Clampped U-type diaphragm valve
Connection mode: Clamped. Our company also offers sanitary stainless steel manual U-type tee welded diaphragm valve.
Standard:ISO. Our company offers other standard, such as IDF, 3A, DIN.
The parts of valve: an actuator, diaphragm and body which assemble together with bolts and nuts. Sanitary Stainless Steel Manual U-Type Tee Clamped Diaphragm Valve 's actuator is manual. The body is three way.
Application:
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.
Work principle:
The diaphragm is close under normal state, and that moment the diaphragm clung tho the valve body cavity, and closing off the flow path through the pipeline. When the diaphragm valve have the requirment to clean or open. The valve stem moves upwards according to the manual or pneumatic actuator equipment, spherical diaphragms naturally nemd 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 separted from the valve cover, so that the stem at the top of the diaphragm, disc media and other parts from corrsion, 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.
Material:
Steel componens: Stainless steel 304, stainless 316L
Seal: EPDM+PTEE the seals are imported seal material (which conform to the FDA177.2600standard).
G01A Series
Suitable for inert and corrosive liquid and gaseous media
Sanitary Diaphragm Valves for Aseptic and Aseptic Applications
• Support CIP/SIP
• Pasteurized
• Insensitive to particulate media
• Valve body and diaphragm are available in a variety of materials
• Stepless minimum flow regulation by hermetic regulator
| Technical Parameters: |
| Operation |
plastic handwheel, regulator & position indicator |
| DN |
DN4-DN65 |
| 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 |
| ISO-NO.RG0024 |
Size |
A |
I |
B |
R |
C |
D |
E |
T |
F |
H |
| 19 |
3/4" |
123 |
80 |
161 |
28.5 |
81 |
93/103.5 |
19.05 |
1.5 |
25.2 |
18 |
| 25 |
1" |
146 |
90 |
191.5 |
33.5 |
101.5 |
93/103.5 |
25.4 |
1.5 |
50.5 |
23 |
| 32 |
1.25" |
180 |
90 |
213 |
38 |
123 |
107/124.5 |
31.8 |
1.5 |
28.5 |
| 38 |
1.5" |
201 |
100 |
232 |
48.5 |
132 |
107/124.5 |
38.1 |
1.5 |
30 |
| 51 |
2" |
242 |
110 |
267 |
60.5 |
157 |
129/151.5 |
50.8 |
1.5 |
64 |
38 |
Product Show:
Packing:
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