High Temperature High Pressure Globe Valve for Power Station Forged Steel Alloy ASME B16.34 Class 1500 2500 China Manufacturer

High Temperature Pressure Power Station Globe Valves

High temperature and high-pressure power station globe valve is a special valve designed specifically for thermal power plants, steel and chemical systems. It adopts a self sealing structure (the higher the pressure, the more reliable the sealing), and the sealing surface between the valve disc and the valve seat is strengthened by cobalt based hard alloy welding process. It is resistant to high temperature (≤ 570 ℃), high pressure (≤ 32MPa), and wear-resistant and scratch resistant. It achieves the cutoff or flow regulation of media (such as water and steam) by lifting and lowering the valve disc along the centerline of the valve seat. It has welding connection, low flow resistance, and long service life characteristics, which comply with standards such as JB/T3595 and are suitable for pipeline control under extreme working conditions.

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Multi functional and standardized adaptation
Security and reliability enhancement
Convenience of operation and maintenance
Sealing performance optimization
Design for extreme working conditions

Multi functional and standardized adaptation

Multi functional and standardized adaptation
01
Suitable for water, steam, and weakly corrosive media, supporting customized design to meet special working conditions requirements; Production follows international standards (such as JB/T3595) to ensure product quality consistency and system compatibility.

Security and reliability enhancement

Security and reliability enhancement
01
Single seat design eliminates the risk of abnormal pressure rise in the medium of the middle chamber and avoids the hidden danger of valve body rupture;
02
The flange connection adopts high expansion coefficient composite gasket, which maintains airtightness under extreme conditions.

Convenience of operation and maintenance

Convenience of operation and maintenance
01
Low torque design: The concealed rod structure, combined with embedded copper nuts, reduces manual opening and closing torque by more than 50%;
02
The upper structure supports online maintenance, allowing for quick replacement of seals without the need to disassemble valves, reducing downtime;
03
Modular design simplifies maintenance processes, deeply optimizes the packing box and adds corrosion inhibitors to enhance sealing reliability.

Sealing performance optimization

Sealing performance optimization
01
The combination of bidirectional elastic sealing design and wedge-shaped sealing structure relies on mechanical force to achieve a tight fit of the sealing surface, effectively preventing medium leakage;
02
The self-cleaning structure guides the fluid to evenly flush the sealing surface, avoiding the accumulation of particles and maintaining long-term sealing stability.

Design for extreme working conditions

Design for extreme working conditions
01
Adopting a self sealing structure, the higher the pressure, the more reliable the sealing performance, suitable for high temperature (≤ 570 ℃) and high pressure (≤ 32MPa) environments;
02
The sealing surfaces of the valve disc and seat are treated with cobalt based hard alloy overlay welding or plasma spray welding technology, significantly improving their wear resistance, high temperature resistance, and abrasion resistance;
03
The valve stem undergoes quenching and surface nitriding treatment to enhance corrosion resistance and mechanical strength, extending its service life.

Main Component Materials

Part Name	Material
valve body	WCB	A105	WC6	Wc9
valve disc	25	15CrMoA	12Cr1MoVA	12Cr1MoVA
valve seat	25	15CrMoA	12Cr1MoVA	12Cr1MoVA
valve cover	25	WC1	WC6	Wc9
valve stem	1Cr17Ni2	1Cr17Ni2	SUH600 20Cr1MoV1A	SUH600 20Cr1MoV1A
support	WCB	WCB	WCB	WCB
support	WCB	WC1	WC6	Wc9
sealing ring	S soft steel (reinforced flexible graphite)		S soft steel	S soft steel
filler	Enhanced flexible graphite
stem nut	45(CuZn25A16Fe3Mn3)

Performance Specifications & Dimensions

Nominal Pressure PN

1500~3500Lb
Shell F

Px1.5
Sealing Pressure

Px1.1
Medium

Water, steam, oil
Temperature (℃)

WCB ≤425、A105 ≤540、WC6 ≤555、WC9 ≤570

J61Y-1500Lb
Specification NPS (in)	d	L	H	Do	Weight (Kg)
Specification NPS (in)	mm				Weight (Kg)
3	64	390	848	510	150
4	84	480	910	560	240
5	100	580	1030	610	251

J61Y-2000Lb、J61Y-2500Lb
Specification NPS (in)	d		L	H		Do	Weight (Kg)
Specification NPS (in)	mm						Weight (Kg)
2 1/2	50△	46"	420	815	857	510	160△	250"
3	60△	54"	470	895	940	560	200△	290"
4	80△	70"	570	1024	1085	700	280△	325"
注：△-J61Y-2000Lb*-J61Y-2500Lb

J61Y-3500Lb
Specification NPS (in)	d	L	H	Do	Weight (Kg)
Specification NPS (in)	mm				Weight (Kg)
2 1/2	38	480	890	460	235
3	48	640	1030	560	425

Note: The above data is for reference only. For details, please consult the company's sales department.