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China Suppliers Factory PN64 DN500 Big Size Gate Sluice Valve Metal to Metal Seated Z41H-64C
| Valve Type: | Metal seat gate valve | Structure: | Rising type |
| Standard: | EN/API/DIN/GOST | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -30°C < T < 425°C | Operation: | Handwheel |
Characteristics
The WCB gate valves are suitable for high-pressure scenarios and enhance pressure resistance through forging or thick walled casting (wall thickness ≥ 50mm). The flow channel design is mainly based on full diameter to ensure unobstructed fluid flow and avoid medium accumulation.
Advantages
1
Ultra Large Circulation Capacity, Extremely Low Pressure Loss
Adopting a full bore flow channel design, the gate is completely detached from the medium flow path when fully open, and the flow channel is straight. The flow resistance coefficient can be as low as 0.05~0.1, far superior to butterfly valves and globe valves of the same diameter. For large-diameter pipelines with a diameter of DN300 or above, it can minimize the energy loss of medium transportation, especially suitable for the transportation of high flow media such as water, oil, natural gas, etc.
2
High Material Cost-Effectiveness & Strong Adaptability
The valve body is made of carbon steel (such as WCB, WCC) material, which has high strength, good toughness, and impact resistance. It can withstand temperature ranges of -29℃~540℃ and pressure levels of PN10~PN420, meeting the working requirements of the vast majority of industrial media. Compared to stainless steel and alloy steel materials, carbon steel has lower procurement and processing costs, and has extremely high cost-effectiveness in non corrosive media scenarios.
3
Stable Structure & Excellent Pressure Bearing Capacity
The valve body of large-sized carbon steel gate valves adopts thick wall casting or forging technology, and the wall thickness of the valve body increases synchronously with the diameter and pressure level, which can effectively withstand the impact of high-pressure media and pipeline stress. The wedge-shaped gate design is matched with a metal hard sealing surface (welded with STL, CoCrW and other hard alloys), which can compensate for the wear of the sealing surface through the slight wedging action of the gate, ensuring the sealing reliability under high pressure conditions. The leakage level can reach ANSI Class IV or above.
Packing
📦
Standard export wooden case packaging
Application Scenarios
The large size gv valve widely applicable to oil and gas field exploration, gathering, transportation, and processing systems in the oil and gas industry, the flow direction of fluids can be controlled.
Frequently Asked Questions
Q
What temperature range can the WCB metal seat gate valve handle?
The WCB metal seat gate valve is designed to operate within a temperature range of -30°C to 425°C, making it suitable for a wide variety of industrial environments including high-temperature oil and gas systems.
Q
What standards does this gate valve comply with?
This valve complies with multiple international standards including EN, API, DIN, and GOST, ensuring compatibility with global pipeline and industrial system requirements.
Q
What is the sealing performance of the metal seat gate valve?
The valve features bidirectional sealing with a zero-leakage grade. The wedge-shaped gate combined with a hard metal sealing surface (STL, CoCrW hard alloys) ensures leakage performance at ANSI Class IV or above under high-pressure conditions.
Q
Why choose carbon steel (WCB/WCC) over stainless steel for gate valves?
Carbon steel offers high strength, good toughness, and excellent impact resistance at a lower cost compared to stainless steel or alloy steel. For non-corrosive media applications, WCB/WCC materials provide outstanding cost-effectiveness while still supporting wide pressure (PN10~PN420) and temperature (-29℃~540℃) ranges.
Q
What are the main application scenarios for large-size WCB gate valves?
These valves are widely used in oil and gas field exploration, gathering, transportation, and processing systems. They are especially suited for large-diameter pipelines (DN300 and above) carrying high-flow media such as water, crude oil, and natural gas.
Q
How is the WCB gate valve packaged for export?
The valve is packaged in standard export wooden cases, which provide robust protection during international shipping and handling, ensuring the valve arrives in perfect condition at its destination.