Product Code : VF--ZCC-220-CU
Product Name: Concealed Stem Bellows Stop Valve
Product Model: WJ41H
Nominal diameter: DN15 - DN200
Structural form: Cut-off type
Nominal pressure: 1.6MPa to 4.0MPa
Connection method: Flange
Applicable temperature: -40 ° C to +425 ° C
Drive mode: Manual
Valve body material: cast iron, cast steel, stainless steel
Standards: National Standard GB, German DIN, American API, ANSI
Applicable media: water, oil, steam, gas, chlorine gas, ammonia gas
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The WJ41H concealed stem bellows stop valve adopts a dual robust and durable bellows seal design (bellows + packing) to ensure zero leakage of the valve stem. There is no fluid loss, which enhances the safety of factory equipment and complies with international sealing standards. The sealing surface of the German standard concealed stem bellows stop valve is surfacing with Co-based hard alloy, which is wear-resistant, corrosion-resistant, has good anti-friction performance and a long service life. The valve stem is quenched and tempered and surface nitrided, which has good anti-corrosion and anti-friction performance. The indication of the valve stem's lifting position is more intuitive.
Design standard
Manufacturing standard: DIN3356
Structural standard: DIN3202
Flange standard: DIN2543-2545
Butt joint standard: DIN3239
Experimental standard: DIN3230
Manufacture:DIN3356
Face ToFace:DIN3202
Flange:DIN2543-2545
Butt-welding:DIN3239
Test:DIN3230
Product Features
The product structure of the concealed stem bellows stop valve is reasonable, the sealing is reliable, the performance is excellent and the appearance is beautiful.
2. The sealing surface is surfacing with Co hard alloy, which is wear-resistant, corrosion-resistant, has good anti-friction performance and a long service life.
3. The valve stem undergoes quenching and tempering as well as surface nitriding treatment, which endows it with excellent corrosion resistance and friction resistance.
4. Double sealing, more reliable performance;
5. It can meet the needs of various projects.
The WJ41H concealed stem bellows stop valve adopts a dual robust and durable bellows seal design (bellows + packing) to ensure zero leakage of the valve stem. There is no fluid loss, which enhances the safety of factory equipment and complies with international sealing standards. The sealing surface of the German standard concealed stem bellows stop valve is surfacing with Co-based hard alloy, which is wear-resistant, corrosion-resistant, has good anti-friction performance and a long service life. The valve stem is quenched and tempered and surface nitrided, which has good anti-corrosion and anti-friction performance. The indication of the valve stem's lifting position is more intuitive.
Packing of Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition
