Views: 0 Author: J-VALVES Publish Time: 2025-08-27 Origin: Site
(1) 3-Piece Structure
The 3-piece structure is one of the prominent features of the 3-Piece Forged Steel Ball Valve (900#). This structure divides the valve body into three parts, which are connected by bolts. Such a design not only facilitates the assembly and maintenance of the valve but also effectively reduces the overall weight and volume of the valve, enhancing its reliability and flexibility. The 3-piece structure makes the valve more convenient to install and maintain—there is no need to disassemble the entire valve from the pipeline, significantly saving time and costs.
(2)Floating Ball Design
The floating ball design is one of the core designs of the 3-Piece Forged Steel Ball Valve (900#). Driven by the medium pressure, the ball can automatically move toward the downstream direction and fit tightly with the downstream valve seat, forming an excellent sealing effect. This design enables the valve to maintain reliable sealing performance both in the fully open and fully closed positions, and it can be easily opened and closed even under high pressure differentials. Additionally, the floating ball design enhances the self-cleaning capability of the valve, reducing the wear of impurities on the sealing surface.
(3) Fireproof and Antistatic Design
The 3-Piece Forged Steel Ball Valve (900#) adopts a fireproof and antistatic design, complying with international standards (such as API 607). The fireproof design ensures that in case of a fire, after the non-metallic sealing surface material is burned, the metal valve seat can closely fit the ball through the elastic force of the spring, preventing the spread of fire and the leakage of media. The antistatic device discharges static electricity through a conductive path, avoiding safety accidents caused by static sparks.
(4) Automatic Pressure Relief Function
The valve cavity is equipped with an automatic pressure relief device. When the pressure in the cavity rises abnormally, the valve seat can automatically retract to release excess pressure, ensuring the safe operation of the valve. This function is not available in traditional floating ball valves, greatly improving the safety of the valve in use.
(5) Sealing Performance
The 3-Piece Forged Steel Ball Valve (900#) adopts a double-block and double-bleed (DBB) design, ensuring sealing performance even in the fully open or fully closed position. The valve seat combines soft sealing and metal sealing to provide a reliable sealing effect. Furthermore, the valve is equipped with an emergency grease injection device; if the sealing surface is damaged, emergency repair can be carried out through the grease injection system, extending the service life of the valve.
Application Scenarios
(1) Oil and Gas Industry
The 3-Piece Forged Steel Ball Valve (900#) is widely used in the exploration, transportation, and processing of oil and natural gas. Its high-pressure and high-temperature resistance enables it to withstand extreme working conditions, ensuring the normal operation of pipeline systems. In the oil and gas industry, the valve is mainly used to control the on-off of fluids, adjust pressure and flow, and prevent leakage and fire accidents.
(2) Chemical Industry
Chemical production processes often involve corrosive media, and the corrosion resistance of the 3-Piece Forged Steel Ball Valve (900#) makes it an ideal choice. The valve can effectively prevent media leakage, protecting the safety of operators and the environment. Its fireproof and antistatic design also meets the strict safety requirements of the chemical industry.
(3) Power Industry
In the steam and water pipelines of power systems, the 3-Piece Forged Steel Ball Valve (900#) can control the on-off of fluids, adjust system pressure, and improve the operating efficiency of power equipment. Its high-pressure and high-temperature performance allows it to adapt to the harsh working conditions of the power industry.
(4) Petrochemical and Refining Industry
The petrochemical and refining industries need to handle a large number of high-temperature, high-pressure, and corrosive media. The high-performance design of the 3-Piece Forged Steel Ball Valve (900#) enables it to meet the requirements of these harsh working conditions. Its fireproof and antistatic design also complies with industry safety standards, ensuring the safety and stability of the production process.
(1) Installation Precautions
Pipeline Cleaning: Before installing the valve, ensure the interior of the pipeline is clean and free of impurities and foreign objects.
Proper Connection: Based on the valve's connection type (flanged or welded), ensure a firm and reliable connection. For flanged connections, tighten the bolts evenly to prevent leakage.
Correct Direction: Ensure the flow direction of the valve is consistent with that of the pipeline; avoid reverse installation.
Stable Support: For large-sized valves, install appropriate support devices to prevent pipeline stress from damaging the valve.
(2) Maintenance Key Points
Regular Inspection: Regularly check the valve's sealing performance and operational flexibility, and promptly identify and address potential issues.
Lubrication Maintenance: Regularly lubricate the valve stem and bearings to reduce friction and extend the valve's service life.
Cleaning Maintenance: Regularly clean the valve surface to prevent corrosion and the accumulation of impurities.
Emergency Repair: If damage to the sealing surface is detected, use the emergency grease injection device for repair in a timely manner to ensure the valve's sealing performance.
The technical parameters of the 3-Piece Forged Steel Ball Valve (900#) are as shown in the table below
Parameter Category | Specific Parameters |
Pressure Class | ANSI Class 900 |
Nominal Diameter | DN15 - DN50 (1/2" - 2") |
Operating Temperature | -29℃ to 425℃ |
Valve Body Material | ASTM A105 (carbon steel), A182 F304/316 (stainless steel) |
Sealing Material | Polytetrafluoroethylene (PTFE), Reinforced Polytetrafluoroethylene (RPTFE), Metal Seal |
Connection Type | Flanged Connection, Welded Connection |
Operation Mode | Manual, Pneumatic, Electric |
Detailed Description
Pressure Class: ANSI Class 900 indicates that the valve can withstand high operating pressure, making it suitable for medium-to-high pressure working conditions.
Nominal Diameter: The range of DN15 to DN50 covers application needs from small-sized pipelines to medium-and large-sized pipelines.
Operating Temperature: It can work stably within the temperature range of -29℃ to 425℃, applicable to various extreme working conditions.
Valve Body Material: The option of carbon steel and stainless steel allows it to adapt to different corrosive environments.
Sealing Material: PTFE and RPTFE provide excellent chemical stability and sealing performance, while metal seals are suitable for high-temperature and high-pressure conditions.
Connection Type: Flanged and welded connections offer flexible installation options to meet the requirements of different pipeline systems.
Operation Mode: Manual, pneumatic, and electric operation modes satisfy operational needs under different working conditions.
