DIN standard bellows disconnecting valve is suitable for nominal pressure PN1.6 ~ 16MPa, working temperature -29 ~ 350 ℃ flammable, explosive, highly toxic, toxic fluids, high temperature thermal oil, liquid ammonia and other media. Widely used in: petrochemical, chemical fiber and textile, plastics and paper, electric power, steel, printing, dyeing and rubber, natural gas and other gas systems, safe and reliable performance, widely used in glycol and other industrial fluids. Driving methods are manual, gear drive, electric, pneumatic and so on. The product structure is reasonable, reliable sealing, double rugged bellows seal design (bellows + packing), to ensure zero leakage of the valve stem. There is no fluid loss, improving the safety of plant equipment. And it meets the international sealing standard. The sealing surface is surfaced with Co-based hard alloy, which is wear-resistant, corrosion-resistant, good friction-resistant and has a long service life. Stem tempering and surface nitriding treatment, has good anti-corrosion and anti-friction performance; stem lifting position indication, more intuitive.
Driving method | manually operated |
electric powered | |
design standard | DIN3356 |
Structure length | DIN3202 |
Connecting flange | DIN2543-2545 |
Tests and inspections | DIN3230 |
Product Performance Specification
Nominal pressure（MPa） | Shell test pressure（MPa） | Seal test pressure(MPa) | Applicable temperature(℃) |
1.6 | 2.4 | 1.76 |
|
2.5 | 3.75 | 2.75 | |
4.0 | 6.0 | 4.4 | |
6.4 | 9.6 | 7.04 |
Note: series of valve connection flange can be designed and manufactured according to user requirements
Material of parts
Part Name | valve body | bonnets | tappet | valve | sealing surface | packing material |
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 |
Dimensions and weight
model number | WJ41-16 | |||||||||||||||||||||||||||||||||||||||||||
pressure rating | 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 | |||||||||||||||||||||||||||||
weights(Kg) | 4 | 4.5 | 5 | 7 | 9 | 12.5 | 18 | 23 | 41 | 54 | 90 | 160 | 260 | 410 | 610 | |||||||||||||||||||||||||||||
model number | WJ41-25 | |||||||||||||||||||||||||||||||||||||||||||
pressure rating | 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 | |||||||||||||||||||||||||||||
weights(Kg) | 4 | 4.5 | 5 | 7 | 9.5 | 13 | 19 | 24 | 43 | 57 | 95 | 168 | 300 | 510 | 680 | |||||||||||||||||||||||||||||
model number | WJ41-40 | |||||||||||||||||||||||||||||||||||||||||||
pressure rating | 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 | |||||||||||||||||||||||||||||
weights(Kg) | 4 | 4.5 | 5 | 8 | 10 | 13.5 | 20 | 25 | 45 | 60 | 98 | 171 | 340 | 580 | 780 | |||||||||||||||||||||||||||||
DIN standard bellows disconnecting valve is suitable for nominal pressure PN1.6 ~ 16MPa, working temperature -29 ~ 350 ℃ flammable, explosive, highly toxic, toxic fluids, high temperature thermal oil, liquid ammonia and other media. Widely used in: petrochemical, chemical fiber and textile, plastics and paper, electric power, steel, printing, dyeing and rubber, natural gas and other gas systems, safe and reliable performance, widely used in glycol and other industrial fluids. Driving methods are manual, gear drive, electric, pneumatic and so on. The product structure is reasonable, reliable sealing, double rugged bellows seal design (bellows + packing), to ensure zero leakage of the valve stem. There is no fluid loss, improving the safety of plant equipment. And it meets the international sealing standard. The sealing surface is surfaced with Co-based hard alloy, which is wear-resistant, corrosion-resistant, good friction-resistant and has a long service life. Stem tempering and surface nitriding treatment, has good anti-corrosion and anti-friction performance; stem lifting position indication, more intuitive.
Driving method | manually operated |
electric powered | |
design standard | DIN3356 |
Structure length | DIN3202 |
Connecting flange | DIN2543-2545 |
Tests and inspections | DIN3230 |
Product Performance Specification
Nominal pressure（MPa） | Shell test pressure（MPa） | Seal test pressure(MPa) | Applicable temperature(℃) |
1.6 | 2.4 | 1.76 |
|
2.5 | 3.75 | 2.75 | |
4.0 | 6.0 | 4.4 | |
6.4 | 9.6 | 7.04 |
Note: series of valve connection flange can be designed and manufactured according to user requirements
Material of parts
Part Name | valve body | bonnets | tappet | valve | sealing surface | packing material |
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 |
Dimensions and weight
model number | WJ41-16 | |||||||||||||||||||||||||||||||||||||||||||
pressure rating | 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 | |||||||||||||||||||||||||||||
weights(Kg) | 4 | 4.5 | 5 | 7 | 9 | 12.5 | 18 | 23 | 41 | 54 | 90 | 160 | 260 | 410 | 610 | |||||||||||||||||||||||||||||
model number | WJ41-25 | |||||||||||||||||||||||||||||||||||||||||||
pressure rating | 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 | |||||||||||||||||||||||||||||
weights(Kg) | 4 | 4.5 | 5 | 7 | 9.5 | 13 | 19 | 24 | 43 | 57 | 95 | 168 | 300 | 510 | 680 | |||||||||||||||||||||||||||||
model number | WJ41-40 | |||||||||||||||||||||||||||||||||||||||||||
pressure rating | 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 | |||||||||||||||||||||||||||||
weights(Kg) | 4 | 4.5 | 5 | 8 | 10 | 13.5 | 20 | 25 | 45 | 60 | 98 | 171 | 340 | 580 | 780 | |||||||||||||||||||||||||||||
