Threaded Manual Flange Gate Valve
Threaded Manual Flange Gate Valve
It is suitable for petroleum, chemical, pharmaceutical, fertilizer, power industry and other industries with nominal pressure PN1.6～16MPa and working temperature -29～350℃.
On pipelines under working conditions, cut off or connect the pipeline medium. The main features of the national standard bellows gate valve: reasonable product structure, reliable sealing, excellent performance, and beautiful appearance; the sealing surface is overlayed with Co-based carbide, wear-resistant, corrosion-resistant, anti-friction performance, and long service life; the valve stem is quenched and tempered And surface nitriding treatment, it has good anti-corrosion and anti-friction properties; double sealing, more reliable performance; valve stem lifting position indication, more intuitive; parts material and flange, butt welding end size can be based on actual working conditions or user requirements Reasonable selection to meet various engineering needs.
[National standard bellows gate valve main component materials]
|
No. |
name |
materail |
|
1 |
valve body |
WCB WC1,WC6,WC9,C5 CF8,CF8M,CF3,CF3M |
|
2 |
valve plate |
25,1Cr13,2Cr13 1Cr18Ni9Ti,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV |
|
3 |
valve rod |
25,1Cr13,2Cr13 1Cr18Ni9Ti,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV |
|
4 |
Bellows components |
1Cr18Ni9Ti,304,316,304L,316L |
|
5 |
Bracket |
WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF3,CF3M, |
|
6 |
Gasket |
Flexible graphite + stainless steelFlexible graphite+stainless steel,PTFE |
|
7 |
valve cap |
WCB WC1,WC6,WC9,C5 CF8,CF8M,CF3,CF3M |
|
8 |
Hex nuts |
0Cr18Ni9Ti,0Cr18Ni12Mo2Ti 35CrMoV,25Cr2MoV |
|
9 |
Stud bolt |
0Cr18Ni9Ti,0Cr18Ni12Mo2Ti 35CrMoV,25Cr2MoV |
|
10 |
filler | flexible graphite |
|
11 |
Packing gland |
WCB WC1,WC6,WC9,C5 CF8,CF8M,CF3,CF3M |
|
12 |
Stem nut | copper alloy |
|
13 |
handwheel |
WCB QT400-18 |
| structure type |
BB-BG-OS & Y |
| Drive mode | Manual |
| electric | |
| design standards |
GB12234 |
| Structure length |
GB12221 |
| connecting flange |
GB9113,JB79,HG20596 |
| Testing and Inspection |
JB/T 9092,GB/T13927 |
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