Overview
The J41T cast iron flanged stop valve is a valve that achieves reliable opening/closing and flow regulation of pipelines through a valve stem driving the disc to perform vertical lifting motion along the seat centerline. Its design core lies in the valve body made of high-strength gray cast iron or ductile cast iron, balancing excellent structural strength with cost efficiency. A copper alloy (copper core) is embedded in the sealing surface of the disc, forming a wear-resistant and corrosion-resistant soft sealing pair. The valve adopts a flanged connection type, securely connected to pipeline flanges via bolts, ensuring convenient installation, reliable sealing, and easy maintenance. The valve structure features a low-in, high-out flow path design, effectively reducing operating torque and enhancing shut-off tightness. The valve is operated by a handwheel driving the valve stem, converting rotational force into vertical linear motion of the disc for smooth and precise opening/closing operations. This valve is widely used in pipelines for water, steam, oil products, and general corrosive media. It is particularly suitable for applications with moderate nominal pressure ratings and high requirements for sealing performance and connection stability, such as municipal water supply, building heating, industrial circulation systems, and general chemical pipelines.

J41T Cast Iron Flanged Stop Valve Product Image

Features

1.Reliable Sealing and Durable Design: The valve body is made of high-strength gray cast iron or ductile cast iron, offering excellent pressure resistance and corrosion resistance. The disc features a copper alloy (copper core) sealing surface with outstanding wear and corrosion resistance, forming a soft sealing pair with the seat to ensure long-term reliable sealing for common media such as water, steam, and oil products.

2.Robust Structure and Stable Connection: The valve adopts a flanged connection type, securely connected to pipeline flanges via bolts, ensuring firm installation and reliable sealing. The flanged connection provides excellent tensile and bending resistance, making it suitable for piping systems with minimal vibration and ensuring long-term connection stability and reliability.

3.Easy Operation and Reliable Opening/Closing: The handwheel-driven valve stem design is ergonomic, requiring low operating torque. The valve stem transmits motion smoothly, and the disc lifts along an accurate trajectory, enabling smooth opening/closing operations and reliable shut-off, suitable for applications requiring frequent operation.

4.Economical and Practical with Easy Maintenance: The cast iron valve body offers low manufacturing cost and high cost-effectiveness. The copper alloy disc extends the valve's service life. The overall structure is simple, facilitating easy disassembly and maintenance, reducing long-term usage and maintenance costs.

5.Strong Versatility and Wide Media Applicability: Suitable for nominal pressures PN16 to PN25, applicable to water, steam, non-corrosive oils, and general gaseous media. Widely used in civil construction, municipal water supply and drainage, HVAC systems, and general industrial piping systems, meeting conventional shut-off and flow regulation requirements.

6.Reasonable Flow Direction and Safety Design: The valve is typically designed with a low-in, high-out flow path, which helps reduce the valve opening/closing torque and lowers the medium pressure on the valve stem packing, enhancing operational safety. The structural design is simple and reliable, complying with safety specifications for conventional industrial applications.