OverviewZ41H forged steel flange gate valve is a rising stem wedge gate valve manufactured with forged steel valve body and flange connection. The valve body is formed through forging process, with a dense internal structure and better mechanical properties than castings. The valve is driven by a handwheel to lift and lower the valve stem, which in turn drives the wedge gate to open and close the pipeline. The sealing surface adopts alloy steel overlay welding ("H" type) to form a metal hard seal. This valve is designed specifically for high pressure, high temperature, and critical working conditions, with higher strength, toughness, and reliability, making it an ideal choice for demanding pipelines in industries such as petroleum, chemical, and power. Widely used in petrochemical plants, refineries, power plant boiler feedwater systems, high-pressure steam pipelines, natural gas gathering and transportation pipelines, and high-temperature and high-pressure process pipelines with strict requirements for valve strength, sealing, and durability, as a key cutoff equipment.Z41H Forged Steel Flanged Gate Valve Product Drawing

OverviewZ61Y forged steel welded gate valve is a rising stem wedge gate valve manufactured with a forged steel valve body and welded end connection. The valve body is formed through forging process, with a dense internal structure and excellent mechanical properties. The valve is driven by a handwheel to lift and lower the valve stem, which in turn drives the wedge gate to open and close the pipeline. The sealing surface adopts hard alloy overlay welding ("Y" type) to form a high-performance metal hard seal. Prefabricated welding grooves at both ends can be directly welded to the pipeline to form a permanent, zero leakage connection. This valve is designed specifically for high temperature, high pressure, and harsh working conditions, making it an ideal choice for industries such as power plants and petrochemicals. Mainly welded and installed in the main steam system of power plant boilers, high-pressure feedwater pipelines, petrochemical hydrogenation units, synthetic ammonia process pipelines, nuclear power plant auxiliary systems, and other high-temperature and high-pressure critical pipe sections with extreme requirements for connection reliability, sealing, and pressure bearing capacity, as permanent and high safety cutoff equipment.Z61Y Forged Steel Butt-Weld Gate Valve Product Drawing

OverviewThe Z41Y self-sealing flanged forged steel gate valve is an outside screw and yoke (OS&Y) wedge gate valve manufactured with a forged steel body and flanged connections. Its body is formed through a forging process, resulting in a dense internal structure with mechanical properties superior to those of cast components. The valve is operated by a handwheel that drives the stem to lift or lower the wedge gate, achieving pipeline isolation. The sealing surfaces feature alloy steel hardfacing (designated by the model suffix "H"), forming a metal-to-metal hard seal. Specifically engineered for high-pressure, high-temperature, and critical service conditions, this valve offers enhanced strength, toughness, and reliability. It is an ideal choice for demanding pipelines in industries such as petroleum, chemical, and power generation. It is widely used as a critical isolation device in applications with stringent requirements for strength, sealing performance, and durability, including petrochemical units, oil refineries, power plant boiler feedwater systems, high-pressure steam lines, natural gas gathering and transmission pipelines, and high-temperature high-pressure process piping.Z41Y Self-sealing Flanged Forged Steel Gate Valve Product Illustration

OverviewThe Z11Y Female Threaded Forged Steel Gate Valve is a shut-off valve specifically designed for high-pressure, small-to-medium bore, and general industrial applications. It opens or closes the pipeline by rotating the handwheel to raise or lower the stem, which drives the gate vertically along the valve body centerline.Its core design features a wedge-type flexible gate or solid gate structure, which effectively compensates for minor deformations of the sealing surfaces caused by temperature changes or pressure fluctuations, ensuring tight sealing surface contact and reliable shut-off when the valve is closed. The valve body is manufactured using an integral forging process and made of high-quality carbon steel, alloy steel, or stainless steel. This eliminates casting defects, significantly enhances the density and strength of the body, and ensures long-term stable operation under high pressure, high temperature, and corrosive conditions.The sealing pair utilizes a metal-to-metal hard seal design, with sealing surfaces hardfaced using wear-resistant alloys (such as Stellite, 13Cr, etc.) and precision-lapped. This provides high hardness, excellent wear resistance, and superior erosion resistance, capable of withstanding harsh conditions involving high temperature, high pressure, and particulate media.The valve features a female threaded connection, using standard taper pipe threads (NPT, PT, BSPT, etc.) to screw directly onto the pipeline. This allows for quick and easy installation and convenient disassembly for maintenance, making it suitable for small-to-medium bore, high-pressure, and space-constrained industrial piping systems.The valve is operated via a handwheel; turning clockwise closes the valve, and turning counterclockwise opens it. The rising stem design allows the valve opening position to be directly determined by observing the stem extension height, facilitating operation and maintenance.This valve is specifically designed for industrial fluid conveying systems handling media such as water, steam, oil, natural gas, and corrosive media. It is particularly suitable for demanding applications in the petroleum, chemical, power, metallurgy, pharmaceutical, and general industrial sectors that require a compact structure, convenient installation, reliable sealing, and long-term stable operation under high temperature, high pressure, or corrosive environments.Z11Y Female Threaded Forged Steel Gate Valve Product Image

OverviewThe Z561 forged steel butt-weld self-sealing gate valve is a shut-off valve specifically designed for high-temperature and high-pressure conditions. It opens or closes the pipeline system by lifting the stem to raise or lower the gate. The core design feature is the self-sealing bonnet structure, where a sealing ring between the bonnet and body creates a pressure-energized seal. As the medium pressure increases, the sealing force intensifies, ensuring zero-leakage sealing reliability under high-temperature and high-pressure conditions.The valve body is integrally forged from high-quality carbon steel, alloy steel, or stainless steel, eliminating casting defects and significantly enhancing density and strength. This ensures excellent impact resistance and structural integrity under high-pressure, high-temperature, and corrosive service conditions. The internal structure features either parallel or wedge gate designs, with sealing surfaces available in hardfacing alloy overlay or body material design to meet different temperature, pressure, and medium characteristic requirements.The valve utilizes butt-weld connection, directly welded to the pipeline for high connection strength, excellent sealing performance, and compact structure, making it suitable for high-temperature,high-pressure, and severe industrial piping systems. The valve is typically equipped with manual handwheel or gear operator, lifting the stem through threaded transmission to raise or lower the gate for medium flow control, providing reliable operation and good sealing performance.This valve is specially designed for high-temperature, high-pressure industrial fluid transmission systems including water, steam, oil, and natural gas, particularly suitable for petroleum, chemical, power, metallurgy, and other industrial fields requiring high-temperature resistance, high-pressure resistance, and long-term stable operation under severe conditions.Z561 Forged Steel Butt-Weld Self-Sealing Gate Valve Product Drawing

OverviewThe Z61H forged steel self-sealing socket weld gate valve is an outside screw and yoke (OS&Y) wedge gate valve manufactured with a forged steel body and welded end connections. The valve body is formed through a forging process, resulting in a dense internal structure and excellent mechanical properties. The valve uses a handwheel to drive the stem up and down, which in turn moves the wedge gate to open or close the pipeline. The sealing surfaces are overlaid with hard alloy ("Y" type), forming a high-performance metal-to-metal hard seal. Pre-machined welding bevels are provided on both ends, allowing for direct butt welding to the pipeline, creating a permanent, zero-leakage connection. This valve is specifically designed for high temperature, high pressure, and severe service conditions, making it an ideal choice for industries such as power generation and petrochemicals. It is primarily welded into critical high-temperature and high-pressure piping sections with extreme requirements for connection reliability, sealing integrity, and pressure containment, such as main steam systems of power plant boilers, high-pressure feedwater pipelines, hydrogenation units in petrochemical plants, synthetic ammonia process lines, and auxiliary systems in nuclear power plants, serving as a permanent, high-safety shut-off device. Z61H Forged Steel Self-Sealing Socket Weld Gate Valve Product Image