bellows globe valves
nominal diameter: dn15 ~ 350mm
nominal pressure: pn1.6 ~ 4.0mpa
temperature: -29 ~ 350 ℃
operation: manual, electric
main material: wcb, wc6, wc9, c5 cf8, cf8m, cf3, cf3m
structure: bb-bg-os & y
design standard: gb12235
structure length: gb12221
connecting flange: gb9113, jb / t79, hg20596
test and inspection: jb / t 9092, gb / t13927
first, the bellows globe valve product overview
j41h bellows globe valve is my company to introduce advanced german technology, the use of advanced metal bellows seal manufacturing technology, high-performance metal bellows, bellows seal globe valve bellows seal design, complete eliminating the shortcomings of common valve stem packing aging fast leakage, not only improve the use of energy efficiency, increase the safety of production equipment, reduce maintenance costs and frequent maintenance, but also provide a clean and safe working environment. bellows globe valve is widely used in petrochemical, chemical fiber textile, plastic paper, power steel, printing and dyeing rubber, food and other industries.
j41h / w type pn16 ~ pn40 bellows globe valve for working pressure 1.6 ~ 4.0mpa, operating temperature -29 ~ 350 ℃ oil, chemical, pharmaceutical, fertilizer, power industry and other conditions, but the break or access adjust the pipe media.
second, the bellows globe valve features
1, the product structure is reasonable, reliable sealing, dual rugged bellows seal design (bellows packing) to ensure zero stem leakage. no fluid loss, reduced energy loss and increased plant safety. and in line with international standards of sealing.
2, the sealing surface surfacing co-based carbide, wear-resistant, corrosion-resistant, good anti-friction performance, long service life
3, the valve stem quenching and surface nitriding treatment, good corrosion and friction performance; stem lift position indication, more intuitive.
third, the bellows globe valve parts of the main material
| serial number | name | material |
| 1 | body | wcb, wc6, wc9, c5 cf8, cf8m, cf3, cf3m |
| 2 | disc |
25, 1cr13, 2cr13 1cr18ni9ti, 0cr18ni12mo2ti 20cr1mo1v, 25cr2mov |
| 3 | shaft pin |
25, 1cr13, 2cr13 1cr18ni9ti, 0cr18ni12mo2ti 20cr1mo1v, 25cr2mov |
| 4 | valve stem |
25, 1cr13, 2cr13 1cr18ni9ti, 0cr18ni12mo2ti 20cr1mo1v, 25cr2mov |
| 5 | bellows assembly | 1cr18ni9ti, 304,316,304l, 316l |
| 6 | gasket | flexible graphite stainless steel, ptfe |
| 7 | cap | wcb, wc6, wc9, c5 cf8, cf8m, cf3, cf3m |
| 8 | studs |
0cr18ni9ti, 0cr18ni12mo2ti 35crmov, 25cr2mov |
| 9 | hex nuts |
0cr18ni9ti, 0cr18ni12mo2ti 35crmov, 25cr2mov |
| 10 | filler | flexible graphite |
| 11 | packing gland | wcb, wc6, wc9, c5 cf8, cf8m, cf3, cf3m |
| 12 | stem nut | copper alloy |
| 13 | handwheel | wcb, qt400-18 |
fifth, bellows globe valve main connection size
| 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 | 190 | 195 | 225 | 260 | 280 | 310 | 340 | 395 | 435 | 470 | 535 | 590 | 630 | 680 | 720 |
| w | 120 | 140 | 140 | 180 | 200 | 220 | 260 | 280 | 300 | 340 | 400 | 450 | 450 | 500 | 500 |
| weight (kg) | 5 | 5 | 5.5 | 11 | 13.5 | 19 | 26 | 36 | 46 | 74 | 102 | 168 | 270 | 420 | 620 |