Product Overview

J41H bellows globe valve is made of metal bellows sealing technology. High performance metal bellows and bellows sealing globe valve are designed with bellows sealing, which completely eliminate the disadvantage of quick aging and leakage of ordinary valve stem packing. It not only improves the energy efficiency, increases the safety of production equipment, reduces maintenance costs and frequent maintenance, but also provides a clean and safe working environment. Bellows globe valves are widely used in petrochemical, chemical fiber textile, plastic paper making, electric power steel, printing and dyeing rubber, food and other industries.J41H/W type PN16~PN40 bellows stop valve is applicable to the petroleum, chemical, pharmaceutical, chemical fertilizer, electric power industry and other working conditions with the working pressure of 1.6~4.0MPa and the working temperature of - 29~350 ℃, but the regulating pipeline medium is disconnected or connected.

Product features

1. The product structure is reasonable, the sealing is reliable, and the double durable bellows sealing design (bellows+packing) ensures zero leakage of the valve stem. No fluid loss, reduce energy loss and improve plant equipment safety. And meet the international sealing standards.2. The sealing surface is welded with Co based cemented carbide, which has good wear resistance, corrosion resistance, friction resistance and long service life.3. The valve rod is quenched and tempered and the surface is nitrided, with good corrosion resistance and friction resistance; The up and down position indication of the valve rod is more intuitive.

Technical specifications

Structural style	BB-BG-OS & Y
Drive mode	Manual
	Electric
Design Criteria	GB12235
Structure length	GB12221
Connecting flange	GB9113、JB/T79、HG20596
Test and inspection	JB/T 9092、GB/T13927

Main parts and materials

No.	Name	Material
1	Body	WCB、WC6、WC9、C5 CF8、CF8M、CF3、CF3M
2	Valve clack	25、1Cr13、2Cr13 1Cr18Ni9Ti、 0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV
3	Pivot pin	25、1Cr13、2Cr13 1Cr18Ni9Ti、 0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV
4	Stem	25、1Cr13、2Cr13 1Cr18Ni9Ti、 0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV
5	Bellows assembly	1Cr18Ni9Ti、304、316、304L、316L
6	Gasket	Flexible graphite+stainless steel, PTFE
7	Bonnet	WCB、WC6、WC9、C5 CF8、CF8M、CF3、CF3M
8	Stud bolt	0Cr18Ni9Ti、0Cr18Ni12Mo2Ti 35CrMoV、25Cr2MoV
9	Hexagon nut	0Cr18Ni9Ti、0Cr18Ni12Mo2Ti 35CrMoV、25Cr2MoV
10	Packing	Flexible graphite
11	Packing gland	WCB、WC6、WC9、C5 CF8、CF8M、CF3、CF3M
12	Stem nut	Copper alloy
13	Handwheel	WCB、QT400-18

Main connection dimension

Pressure rating	PN16
DN	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
WT（Kg）	5	5	5.5	11	13.5	19	26	36	46	74	102	168	270	420	620