Self-SeSealing Forged Globe Valve (High Pressure, High Temperature)

This Self-Sealing Forged Globe Valve is an advanced stop valve specifically designed for critical service in power plants, chemical industries, and high-pressure pipelines. Its unique pressure-seal bonnet design ensures leak-tight performance as line pressure increases, making it highly reliable for high-temperature and high-pressure steam, water, and oil applications.

⭐ Key Product Advantages

Pressure Self-Sealing Bonnet: The central cavity utilizes a pressure-seal bonnet structure, meaning the higher the internal pressure, the better the sealing performance, ensuring reliability at extreme service limits.
Superior Sealing Surfaces: The sealing surfaces of the disc and seat are built up with Stellite (Cobalt-based hard alloy), providing excellent resistance to high temperature, wear, galling, and erosion, leading to a long service life.
Forged Body Structure: The valve body is constructed from a forged material, which ensures a dense, homogenous structure with fewer internal defects than casting, providing superior mechanical strength and integrity under high pressure.
Low Operating Torque: The design utilizes a high-inlet, low-outlet (high-in, low-out) flow direction, which minimizes the operating torque and makes the valve easier to open.

📋 Technical Specifications

Parameter	Detail / Standard
Valve Type	Globe Valve (Stop Valve)
Design Standard	$\text{NB}/\text{T}47044-2014, \text{ASME B}16.34-2013$
Nominal Pressure	$\text{PN}160 - \text{PN}630$ ( $\text{900LB} - \text{3500LB}$ )
Nominal Diameter	$\text{DN}10 - \text{DN}100$ ( $\text{1/2}'' - \text{4}''$ )
Connection	Welded Ends (Welding bevels customized to standards or user requirements).
Actuation	Manual (Handwheel), Gear, Electric, Pneumatic, Hydraulic
Applicable Media	Water, Steam, Oil Products
Key Characteristics	High Temperature Resistance, High Pressure Resistance
Testing Standard	$\text{DL}/\text{T}531-1994, \text{JB}/\text{T}3595-2002$

🔩 Main Body and Component Materials

Component Name	Standard Material Options	Temperature Range Example
Body (Forged)	$\text{ASTM A}105, \text{ASTM A}182$ ( $\text{F}11, \text{F}22, \text{F}91, \text{F}92$ ), $1.25\#, 12\text{Cr}1\text{MoV}$	$\text{F}91$ : $\text{-29}^\circ\text{C} \sim 610^\circ\text{C}$
Disc / Seat	Stellite ( $\text{Co}$ based hard alloy) Welded	Excellent wear/gall resistance at high temperature.
Stem	Alloy Steel (Quenched and Tempered, Nitrided Surface)	High wear and corrosion resistance.

💡 Design Features

Anti-Erosion Parts: Features an anti-scour valve seat, disc, and sleeve (replaceable) that have been nitrided for added resistance to fluid erosion.
Sealing: Deep stuffing box with anti-corrosion packing ensures reliable stem sealing.
Flow Direction: Designed for high-inlet, low-outlet flow ( $\text{media flow below the disc}$ ).

This Self-Sealing Forged Globe Valve is the premium choice for isolating and regulating flow in critical high-energy systems.