| Customization: | Available |
|---|---|
| Media: | Gas, Oil, Water, Chemical |
| Temperature: | Low Temperature |
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Pound cast steel globe valve is a commonly used type of valve, which is widely used in petroleum, chemical, natural gas, petrochemical, coal chemical and other industries. This kind of valve has many models and specifications, including JA41, JA641, JA941, etc. The calibre range is from NPS½ to NPS18, DN15 to DN450, and the pressure level covers Class150 to Class900, PN16 to PN160.As for the material, the pound cast steel globe valves can be made of carbon steel, stainless steel, alloy steel, duplex steel, etc. The driving method includes manual, gear drive, electric, pneumatic, etc. to meet the different working conditions. The drive mode includes manual, gear drive, electric, pneumatic and other ways to meet the needs of different working conditions.
The advantages of pound cast steel globe valve mainly include simple structure, easy operation, good sealing performance, strong corrosion resistance, high pressure capacity and long service life.
Simple structure, easy to operate: cast steel globe valve design structure is relatively simple, easy to operate and control the flow of media, which makes it very popular in industrial applications.
Good sealing performance: through the use of special sealing structure design, cast steel globe valve can effectively prevent media leakage, to ensure the sealing of the pipeline.
Strong corrosion resistance: the valve body and valve cover are made of cast steel material, which has good corrosion resistance and is suitable for a variety of media environment.
High pressure capacity: cast steel disconnecting valve is reasonably designed, can withstand high working pressure, adapt to different working conditions.
Long service life: high-quality materials and exquisite manufacturing process ensures that the cast steel globe valve has a long service life and stable and reliable performance1.
In addition, the pound cast steel globe valve also has a variety of models and specifications to choose from to meet the needs of different piping systems. These advantages make the pound cast steel globe valve in the industrial field has been widely used, whether it is water, oil, steam and other corrosive media, or in high temperature environment, can maintain good performance and reliabilityPound cast steel globe valves operate based on the design of their internal structure, which controls the passage of fluid by rotating or raising or lowering the valve stem. This type of valve usually has a round flap, when the flap is rotated to fit closely with the valve seat, the fluid can not pass; when the flap is rotated away from the valve seat, the fluid can flow. In addition, the closing member (gate flap) of the globe valve and the seat sealing surface with a taper seal, this design makes the closing force is small, and resistance to scouring, sealing reliable. The valve seat can be replaced, according to the requirements of the working conditions of any combination of closing sealing surface materials with the pair, so as to meet the different needs of use, prolong the service life. For large calibre, high pressure globe valve, according to the need of closing force, the valve stem transmission method can be used to lift the stem, and equipped with rolling bearing type or impact handwheel, in order to reduce the closing force.
Pound cast steel globe valve materials, internal materials, packing, fasteners materials can be based on user requirements or actual working conditions for a reasonable combination to meet the specific use of environmental and performance requirements. Its manufacturing standards usually follow the American Standard or other relevant international standards to ensure that the quality and performance of the valve meet the standard requirements
The body is the main structure of the valve that keeps everything together. This part contains all internal parts of the globe valve to allow the control of the substance that needs regulation. The opening of the body contains ports (usually two or three ports) to enable the movement of the fluid to the inside or outside of the globe valve.
The seat is among other globe valve parts that seal the space between the disk/stem and bonnet. The seat ring can be screwed into the valve or torqued. The seat is also known as a seat ring and provides a shutoff surface that's stable and also replaceable. Seat rings can hold the cage firmly to the body of the valve.
The bonnet is one of the outer globe valve parts that's connected to the body to provide a leak-proof closure. There are different bonnet types such as bolted, screw-in, or union bonnet that are used in different globe valves. Each of these bonnet types has its own advantages. For example, the union bonnet not only adds strength to the body but is also great for applications that need regular cleaning or inspection. The screw-in bonnet with its simple design offers a pressure-tight seal. And the last bonnet type, the bolted bonnets that are attached with bolts are great for higher pressures.
The stem is part of the globe valve that connects the disk to the handwheel or the valve actuator to transmit the actuation force. Since it connects the actuator to the parts inside of the globe valve, it is considered as one of the critical globe valve parts. If the valves are controlled by actuators, the stem is smooth but for the manual valves, they are threaded.
The ends of smooth steam are threaded allowing the connection to the actuator and the plug. A wearable packing surrounds the smooth stem to prevent leaking material from the valve. So, the packing should be replaced regularly in the maintenance period. The stem can withstand a large amount of compression force in the closure state. And when the valve is opening, it has high tensile strength.
The plug or the disk is among the essential globe valve parts. It moves perpendicular to the seat and its movement can block or free the flow since it works as a moveable physical barrier. When the valve is closed, the plug sits against the seat to block the flow and when it sits above the seats. it enables the flow of the material.
Different disk arrangements have been designed for globe valves such as composite type, ball type, and needle type. The composite disk can provide a better shut-off, while the ball type is used for low-temperature and low-pressure systems. The needle disk has the advantage of providing a better throttling compared to the other two.
| Manufacture Standard Of Gate Valve | API 600 ASME B16.34 / KS B2361 / GB/T 12234 / DIN 3352 |
| Valve Connection | Flanged |
| Connection Type | ANSI, JIS, DIN, GB |
| Valve Material | CF8, CF8M, WCB |
| Power Supply | General: 3-phase 380VAC
Special: 3-phase AC660V, AC440V, AC415V Special: 1-phase AC220V, AC110V Special: DC12V, DC24V, DC48V |
| Torque Range | 50Nm to 10,000Nm |
| Protection Class | IP65 |
| Insulation Class | F Class |
| Ambient Temperature | -4°F to 140°F |
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