China DIN3202 cast iron bellow seal globe valve Manufacturers and Suppliers

DIN3202 cast iron bellow seal globe valve

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As a pressure pipe component, valve controls the connection and cut-off of pipeline fluid. It is like a brake pad on an automobile. Once it is damaged, the consequences are unimaginable. Therefore, the performance and service life of the valve directly affect the normal operation of the pipeline system. Once the valve is damaged, the system must be shut down for maintenance. The loss is not comparable to the cost of several valves, so the quality and service life of the valve are particularly important.
The bellows stop valve is particularly outstanding in these two aspects. It has double seal to ensure zero leakage, and it meets the zero leakage standard of helium mass spectrometry detection, which is very safe and reliable. The number of cycles of bellows can reach more than 10000 cycles without damage, which is much longer than the service life of ordinary stop valve packing seal several times. In addition, the bellows valve can prevent the outside dust from entering the valve body and ensure the cleanliness of the medium. For example, under the working conditions of high-purity silica fume, pure oxygen, food and vacuum, the performance of bellows stop valve is very outstanding.

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Nominal Diameter ：DN15-DN300
Pressure Rating：PN10/ PN16/ PN25/ PN40/PN64
Type Of Connection：Flange
Valve Operation：Handwheel、Gear、Pneumatic、Electric
Body: Cast Iron/ Ductile Iron/ Carbon Steel/ Stainless Steel
Bonnet: Cast Iron/ Ductile Iron/ Carbon Steel/ Stainless Steel
Disc: Cast Iron/ Ductile Iron/ Carbon Steel/ Stainless Steel
Stem: Stainless Steel
Seat: Brass/ Stainless Steel
Apply Medium：Water, Steam, Oil, Acid-Base
Maximum service Temperature：-29℃≤T≤200℃ （CF8、CF8M、CF3M、904L）
-29℃≤T≤150℃ （Cast Iron） -29℃≤T≤425℃ （WCB）
Face to Face: DIN3202-F1
Flange End: DIN2532-2533/ DIN EN1092-2
Inspection and Test Standard：API598

Advantages of bellows globe valve:
1. Double seal design (bellows + packing) if the bellows fails, the stem packing will also avoid leakage and meet international sealing standards.
2. No fluid loss, reduce energy loss, improve plant equipment safety.
3. Long service life, reduce maintenance times, reduce operating costs.
4. The durable bellows seal design ensures zero leakage of the valve stem and provides maintenance free conditions.
5. PTFE soft sealing material is used for gas medium valve seat to improve the sealing performance of the valve.
6. The valve seat with high temperature resistance ≤ 425 ℃ adopts conical hard sealing. Air tightness and zero leakage are achieved.

With the continuous rise of labor cost, reducing labor force is the hope of more and more enterprises. With such bellows stop valve, workers can switch on and off more easily. Products with longer service life and better sealing performance have reason to believe that their prospects will be more and more broad.

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