Overview

Z61Y 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    

Features

1. Forged steel valve body, excellent strength

The valve body is forged with high-quality forged steel (such as A105, F22, F304, F316), which has a dense structure, no casting defects, high mechanical strength, excellent impact resistance, and is suitable for high pressure and fatigue conditions.

2. Welding connection, absolute sealing

Both ends are equipped with standard welding grooves, which are directly welded to the pipeline to eliminate the risk of flange gasket leakage. The connection strength is high and can withstand high temperature, high pressure, and thermal stress cycles.

3. Hard alloy seal ("Y" type)

The sealing surface of the valve disc and seat is welded with high hardness alloys such as Stellite, which have high hardness, wear resistance, high temperature resistance, erosion resistance, excellent sealing performance, and long service life.

4. Clear stem structure, intuitive valve position

The valve stem rises and falls with the gate, and the valve opening can be directly determined by observing the height of the valve stem extension, which is convenient for operation and maintenance.

5. Full bore design with low flow resistance

Adopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for systems with strict pressure drop requirements.

6. Suitable for extreme working conditions

The overall structure and material selection make it suitable for higher working pressures and temperatures, with stable and reliable performance.

Z61Y Forged Steel Butt-Weld Gate Valve Structure Diagram

Component name and material

Performance Specification Table

外形尺寸标准要求  

1、阀门的结构长度按 GB13927的标准

2、连接法兰按 GB/T 17241.6的标准

Standard requirements for external dimensions

1. The structural length of the valve shall be in accordance with the standard GB13927

2. Connecting flanges according to the standard GB/T 17241.6

Z61Y Forged Steel Welded Gate Valve Overall Dimension Drawing

Z61Y Forged Steel Welded Gate Valve Overall Dimension Table