Applicable Standards:

Ball Valve Design Standards: API 6D, BS 5351, ASME B16.34

Face-to-Face Dimensions: ASME B16.10, API 6D

Flange Standards: ASME B16.5 / ASME B16.47

Butt-Weld End Standards: ASME B16.25

Fire Safe Testing: API 607, API 6A

Inspection and Testing Standards: API 598, API 6D

Design Features:

Structure: 2-piece or 3-piece body design

High-integrity sealing structure with low operating torque

Double Block and Bleed (DBB) function

Cavity self-relief mechanism

Fire-safe design

Anti-blowout stem

Anti-static design

Locking device (for lever-operated valves)

ISO 5211 actuator mounting pad

Emergency sealant injection function

Application Fields:

Oil & Gas: Wellhead equipment, pipeline pigging stations, storage tank inlets/outlets, oil and natural gas transmission

Chemical Processing: Reactor isolation, toxic media transport, high-pressure process lines

Energy & Power: Power generation, boiler fuel shut-off, main steam line isolation

Special Applications: Subsea pipelines, LNG facilities, strategic reserve depots

Brand: KOZO

Valve Materials: Carbon steel, high-temperature Cr-Mo steel, stainless steel, duplex stainless steel, Monel, aluminum bronze, special alloy steels, etc.

Valve Type: KOZO Ball Valve

Valve Testing: 100% tested prior to delivery

Warranty: 18 months after shipment or 12 months after installation (whichever occurs first)

Valve Structure: Trunnion-mounted ball valve

Size Range: 1/2" to 48"

Pressure Class: ASME Class 150, 300, 600, 900, 1500, 2500

Lead Time: 15 – 30 days

Samples: Samples available upon request from KOZO Valves

Valve Color: Customized according to customer requirements

Packaging: Plywood crates

Minimum Order Quantity (MOQ): 1 set

Country of Origin: Zhejiang, China (Mainland)

Shipping Port: Shanghai or Ningbo

Payment Terms: L/C, D/P, T/T, Western Union

Electric forged steel ball valve - Intelligent and precise control solution for high-pressure pipelines

Design concept

The high-pressure boundary is supported by a dense forged steel valve body, and precise opening control and remote intelligent diagnosis are achieved through an electric actuator. The valve body is forged to obtain continuous grain flow lines, eliminating the risk of shrinkage porosity and gas holes in castings. The sphere is adapted to the floating ball or fixed ball structure according to the pressure rating of the diameter. Core design logic: Ensure high-pressure integrity through forging compactness, achieve precise regulation and predictive maintenance through electric drive digitalization, and provide standardized intelligent control solutions for high-pressure pipelines without gas sources, requiring precise control, and being remote and unattended.

Performance advantage

High-precision regulation: When combined with variable frequency or stepper motors, it can achieve extremely fine opening control, with a repeatability accuracy within ±0.5% of the stroke. It is the preferred drive for PID closed-loop regulation in process industries.

Digital communication and intelligent diagnosis: Supports bus protocols such as Profibus, FF, HART, and Modbus, and can upload torque curves, action counts, and fault alarms to achieve predictive maintenance.

Powerful thrust and self-locking position retention: The precise deceleration mechanism can output tens of thousands of Newton-meters of torque. The worm gear or brake motor has mechanical self-locking capability,and the valve can reliably maintain its position after power failure.

High-pressure densification of forged steel: The grain flow lines of forgings are continuous, the wall thickness is uniform, and the specific strength is high. The integrity of the pressure boundary under high-pressure conditions of Class 600 and above is better than that of cast steel.

Low-torque fit: The torque of the fixed ball ear shaft support structure is 1/3 to 1/5 of that of the floating ball, matching a smaller-sized electric head to reduce procurement costs.

Bidirectional airtight seal: Meets API 598 zero-bubble acceptance, with floating ball pressure self-tightening or fixed ball spring pre-tightening, and reliable bidirectional disconnection from low pressure to full pressure.

The system is simple and independent: It only requires power supply and does not need auxiliary facilities such as air sources or hydraulic stations, making it suitable for remote unmanned sites.

Safety performance

Fireproof structure: Standard equipped with primary non-metallic seal + secondary metallic seal, certified by API 607/6FA fire test.

Anti-blowout valve stem: The reverse sealing step design complies with API 608, ensuring that the valve stem is not blown out when the cover loosens.

Anti-static conduction: The resistance of the ball - valve stem - valve body is ≤10Ω.

Overload protection: Torque switch or electronic torque limit to prevent overload damage to valves and actuators.

Power-off position retention/reset: Standard type power-off position retention; An optional spring return module is available for emergency shut-off in case of power failure (only for medium and small diameters).

Heating and dehumidification: The actuator is equipped with an internal heater to prevent condensation water from causing electrical faults.

Applicable working conditions

Medium: natural gas, crude oil, refined oil products, water, steam, nitrogen, hydrocarbons, medium and low-temperature chemical media

Scene: Oil depot metering cut-off, remote switch for long-distance pipelines, remote stations without gas sources, process control valves, high-pressure water supply for power plants, slurry transportation