Product introduction:
Choke valve, sometimes also known as 'choker valve' is a type of control valve, mostly used in oil and gas production wells to control the flow of well fluids being produced. Another purpose that the choke valves serve is to kill the pressure from reservoir and to regulate the downstream pressure in the flowlines.
Choke valves allow fluid flow through a very small opening, designed to kill the reservoir pressure while regulating the well production. The reservoir fluids can contain sand particles. Hence the choke valves are usually designed to handle an erosive service.
Typically oil and gas producing wells have two choke valves in series, one non-regulating choke valve and one regulating choke valve downstream to the non-regulating choke valve.
Common alloy grades, physical and mechanical properties, and recommended applications
| Grade | Physical and mechanical properties |
| density(g/cm3) | Flexural strength(N/mm2) | hardness(HRA) |
| ZG01 | 15.3-15.5 | 1200 | 95.5 |
| ZG06 | 14.8-15.1 | 2000 | 90.0 |
| ZG6X | 14.8-15.1 | 1860 | 91.8 |
| ZG6A | 14.8-15.1 | 2000 | 93.2 |
| ZG08 | 14.6-14.9 | 2200 | 89.0 |
| ZG11 | 14.3-14.7 | 2600 | 88.5 |
| ZG12X | 14.2-14.5 | 2850 | 89.5 |
| ZG15 | 13.8-14.2 | 3000 | 86.5 |
| ZG10.2 | 14.3-14.6 | 3500 | 91.5 |
| ZN06 | 14.5-14.9 | 2000 | 90.0 |
| ZN09 | 14.3-14.6 | 2300 | 89.0 |
| ZN11 | 14.0-14.3 | 2600 | 88.0 |
Pictures:
Advantages:
Zonco has been specialized in the cemented carbide industry for many years. It is particularly good at the production and processing of special-shaped non-standard parts. Zonco has not only a full set of processing equipment, but also unique processing technology as well. Zonco offers innovative solutions to meet the extreme complex and severe working conditions (high temperature, strong corrosion and wear) in energy, chemical industry and other industries.The company is dedicated to addressing production concerns to deliver productivity to customers seeking peak performance and providing products with high performance price ratio.
Main product line:
Cemented carbide valve stem
Hard alloy valve seat
Cemented carbide porous sleeve
Carbide labyrinth valve
