Z943WF-16C API Standard Carbon Steel WCB Rising Stem Wedge Flange Electric Flat Gate Valve Price list

Purpose and Functions:

• Electric flat gate valve is a kind of gate valve, suitable for natural gas, petroleum, chemical industry, environmental protection, urban pipelines, gas pipelines and other transportation pipelines, venting systems and steam storage devices, used as opening and closing equipment. Z43 type single gate flat plate gate valve with diversion hole is suitable for long-distance pipelines of natural gas extraction and purification.

Structural Features：

• The valve has a reasonable structure, reliable sealing, and easy operation and maintenance.

• Flat gate valves are divided into two types: those with diversion holes and those without diversion holes. The valves with diversion holes are used on pipelines that require ball cleaning, and the valves without diversion holes are used on pipelines that do not require ball cleaning.

• The gate plate and valve seat are treated with special technology and spray-welded with carbide. The sealing surface has no friction and has a long service life. It can also be filled with grease to provide double protection for auxiliary sealing, ensuring reliable sealing and longer service life of the valve.

• Compared with traditional gate valves, flat gate valves have the advantages of small switching torque and flexible opening and closing.

• This valve has a triple adjustable packing structure to ensure reliable sealing with the valve cover and valve stem.

• Adjustable flat gate valves are used on pumps, station outlets and other pipelines that need to adjust the medium to regulate and cut off the medium.

• The valve is equipped with a pressure relief device to prevent the valve from being damaged due to pressure increase in the hall and ensure the safe use of the valve.

• The Wb type flat gate valve without diversion holes has a unique structure, is convenient for sewage discharge, is not restricted by on-site inspection, and can be installed at any angle.

• Wp type flat gate valve is light in weight and small in size, which greatly reduces the pipeline load. It is especially suitable for oil and steam storage devices.

• The pneumatic flat gate valve opens and closes quickly, with a buffer mechanism, and no impact when closing. The pneumatic and manual switching structure is novel, and the operation is flexible, convenient and reliable.

Selection Principles:

•  For oil and natural gas transmission pipelines, single or double gate flat gate valves should be used. If you need to clean the pipeline, choose a single or double gate rising stem flat gate valve with a guide hole.

• For refined oil transportation pipelines and storage equipment, single or double gate flat gate valves without diversion holes should be used.

• For oil and natural gas extraction wellhead devices, single-gate or double-gate flat gate valves with concealed stem floating valve seats and guide holes are used. Most of them are API16A standards, and the pressure levels are API2000, API3000, API5000, API10000, API15000, API20000.

• For pipelines with suspended particle media, use knife-type flat gate valves.

• For city gas transmission pipelines, single or double gate soft-sealed open-stem flat gate valves should be used.

• For urban water supply projects, single or double gate plate gate valves without diversion holes and open stems should be used.

 Design and Manufacturing Standards

• JB/T5298-91 Steel flat gate valve for pipelines

• API 6D Pipe Valve

• GB12234-89 General valves Flanged and butt welded steel gate valves

• GB/T13927-92 General valve pressure test

• GB12224-89 Steel valves General requirements

• GB/T12252-89 General valve supply requirements

• GB12221-89 Structural length of flange-connected metal valves

• JB/T79-94 integral cast steel pipe flange

• GB12220-89 General valve logo

• JB308-75 valve model compilation method

Specification 

Body Type

Standards and Norms

Standards and Norms

Performance Parameter

Materials of Main parts

 

About Delivery

About Application