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Location:PRODUCTS >> Bellows valve >> German standard stop valve
German standard stop valve
Model: WJ41
Nominal diameter: DN15 ~ 350mm
Nominal pressure: PN16 ~ 40MPa
Operating temperature: -29 ~ 350 ℃

First, the product overview:

Bellows   sealed globe valve is the introduction of advanced German technology   company, the use of advanced metal bellows sealing technology,   high-performance metal bellows, bellows seal globe valve bellows seal   design to completely eliminate the common valve stem packing seal aging   The shortcomings of quick leaks not only improve energy efficiency,   increase the safety of production equipment, reduce maintenance costs   and frequent maintenance, but also provide a clean and safe working   environment. Widely   used in: petrochemical, chemical fiber textile, plastic paper, power   steel, printing and dyeing rubber, food and other industries.


 Second, the structural features:
 1,   the product structure is reasonable, reliable seal, dual rugged bellows   seal design (bellows + filler), to ensure zero stem leakage. No fluid loss, improve factory equipment safety. And in line with international standards of sealing. 
 2,   the sealing surface surfacing Co-based cemented carbide,   wear-resistant, corrosion-resistant, good anti-friction performance,   long service life 
 3,   the valve stem quenching and nitriding treatment, good corrosion and   friction performance; stem Lift position indication, more intuitive

Drive mode Manual
electric
design standards DIN3356
Structure length DIN3202
Connect the flange DIN2543-2545
Test and inspection DIN3230


 Third, product performance specifications:

Nominal pressure (MPa) Shell test pressure (MPa) Seal test pressure (MPa) Applicable temperature (℃)
1.6 2.4 1.76
       ≤350 ℃
2.5 3.75 2.75
4.0 6.0 4.4
6.4 9.6 7.04

Note: Series valve connection flange can be designed and manufactured according to user requirements
 

Fourth, parts and materials:

Part Name Body cap Valve stem Disc Sealing surface filler
WCB WCB WCB 13Cr 2Cr13 2Cr13 Flexible graphite
STL
304 CF8 CF8 304 304 304 Flexible graphite
STL PTFE
316 CF8M CF8M 316 316 316 Flexible graphite
STL PTFE
304L CF3 CF3 316 304L 304L Flexible graphite
STL PTFE
316L CF3M CF3M 316 316L 316L Flexible graphite
STL PTFE

Fifth, the size and weight specifications:

model WJ41-16
Pressure Level PN16
caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
H 195 200 220 225 235 250 260 265 370 400 515 550 600 630 680
Do 130 130 130 130 150 150 180 180 200 200 400 450 450 500 500
Weight (Kg) 4 4.5 5 7 9 12.5 18 23 41 54 90 160 260 410 610

 

model WJ41-25
Pressure Level PN25
caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
H 195 200 220 225 235 250 260 265 370 400 515 550 600 630 680
Do 130 130 130 130 150 150 180 180 200 200 400 450 450 500 450
Weight (Kg) 4 4.5 5 7 9.5 13 19 24 43 57 95 168 300 510 680

 

model WJ41-40
Pressure Level PN40
caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
H 195 200 220 225 235 250 260 265 370 400 515 550 600 630 680
Do 130 130 130 130 150 150 180 180 200 200 400 450 450 500 500
Weight (Kg) 4 4.5 5 8 10 13.5 20 25 45 60 98 171 340 580 780


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