Bellows globe valve

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Bellows globe valve

Model: J41H / W
Nominal diameter: DN15 ~ 350mm
Nominal pressure: PN1.6 ~ 4.0MPa
Temperature: -29 ~ 350 ℃
Design specifications: GB / T 12235
Operation: manual, electric
Main material: WCB, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
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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 cut-off 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 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.

Third bellows valve technical specifications

structure typeBB-BG-OS & Y
Drive modeManual
electric
design standardsGB12235
Structure lengthGB12221
Connect the flangeGB9113, JB / T79, HG20596
Test and inspectionJB / T 9092, GB / T13927


Fourth, the bellows 
main valve parts of the material

Serial numbernameMaterial
1BodyWCB, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
2Disc251Cr13, 2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV
3Shaft pin251Cr13, 2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV
4Valve stem251Cr13, 2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV
5Bellows assembly1Cr18Ni9Ti, 304,316,304L, 316L
6GasketFlexible graphite + stainless steel, PTFE
7capWCB, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
8Studs0Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 
35CrMoV, 25Cr2MoV
9Hex nuts0Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 
35CrMoV, 25Cr2MoV
10fillerFlexible graphite
11Packing glandWCB, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
12Stem nutCopper alloy
13HandwheelWCB, QT400-18

 

Fifth, bellows globe valve main connection size

Pressure LevelPN16
Caliber1520253240506580100125150200250300350
L130150160180200230290310350400480600730850980
H190195225260280310340395435470535590630680720
W120140140180200220260280300340400450450500500
Weight (Kg)555.51113.51926364674102168270420620


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