Core product positioning
A high-performance industrial valve with a three-piece modular design, ASTM A182 F304 forged steel valve body, equipped with an extended connection valve cover and a safety locking device. This design takes into account the convenience of maintenance, adaptability to harsh working conditions and operational safety, and is suitable for industrial pipeline systems that require frequent maintenance or strict management.
Details of technical specifications
| Parameter category | detailed specification |
| Valve body structure | three-piece bolt connection |
| Main material | ASTM A182 F304 (forged stainless steel) |
| Connection method | RF flange/RTJ groove/butt-weld end (as required) |
| Pressure rating | Class 150 to Class 600 (PN16 to PN100) |
| Extend the neck length | standard 150mm / 250mm, or customize as required |
| Locking device | quarter-turn locking handle, standard double padlock holes |
| Design temperature | -196℃ to +540℃ (depending on pressure rating) |
| Applicable media | water, steam, oil products, gas, corrosive chemicals |
Core design features
1.Three-piece modular structure
Convenient maintenance: There is no need to disassemble the valve from the pipeline. Just loosen the middle bolt to remove the middle part of the valve body, and quickly replace the internal valve seat, ball and other parts, greatly reducing maintenance costs and downtime.
Online maintenance: Supports online maintenance, especially suitable for continuous process flows that cannot be shut down.
Stable structure: The bolt connection has high strength, ensuring the integrity of the seal under high pressure.
2. F304 forged steel valve body
Outstanding performance: Forged and formed, with a better grain flow direction, it has higher strength, impact resistance and fatigue resistance compared to castings.
Corrosion resistance: F304 (304 stainless steel) offers excellent corrosion resistance to a variety of chemicals and the atmosphere.
Low carbon content: Effectively controls the precipitation of carbides and has excellent resistance to intergranular corrosion.
3. Extended connection valve cover
Heat insulation/cold preservation: The extended valve neck forms an effective heat insulation zone between the valve interior and the upper actuator, reducing the conduction of medium heat to the valve stem and stuffing box, protecting the sealing packing and extending its service life. It is also applicable to low-temperature working conditions and can prevent frosting.
Suitable for special installation: It is applicable to installation scenarios such as deep burial, inside insulated boxes, or where a safe distance from high-temperature equipment is required.
4. Integrated safety locking device
Safety isolation: Compliant with LOTO standards, the valve is locked in a fully open or fully closed position through a padlock to prevent misoperation and ensure the safety of personnel and equipment.
Intuitive identification: The handle usually has a clear "On/Off" indicator arrow and a lock status indicator.
High-strength design: The locking mechanism is sturdy and durable, capable of withstanding abnormal external force operations.
Performance and Advantages
High reliability: Forged steel material and modular design ensure long-term stable operation under harsh working conditions.
Maintenance economy: The three-piece structure makes maintenance work faster and cheaper, and the full-diameter design facilitates pipeline cleaning.
Operational safety: The locking device provides a crucial safety guarantee for process switching and equipment maintenance.
Wide adaptability: The extended neck design enables it to withstand high and low temperatures as well as special installation environments.
Typical application fields
Petrochemical industry: Process pipelines, especially critical points that require regular maintenance or safety locking.
Energy and power: Steam systems, boiler feed water, cooling water systems.
Fine chemicals and pharmaceuticals: Pipelines for corrosive media with requirements for cleanliness and maintenance.
Public utilities: Isolation and control of urban gas and water treatment plants.
Any industrial setting that requires strict implementation of Safety Operating Procedures (LOTO).
Selection Guide
Please confirm the following parameters when selecting the model
Valve types (such as ball valves, stop valves)
Nominal diameter (DN) and pressure rating (PN/Class)
Connect the standard with the form of the sealing surface
The specific length requirements for extending the neck
Types of locking devices (handle locks, lock valve covers, etc.)
Operation mode (manual, gearbox, pneumatic/electric actuator)
Summary
The three-piece F304 extended type forged steel valve with lock device is a high-end industrial valve solution that integrates convenient maintenance, adaptability to working conditions and operational safety. It is not only a reliable control component for pipeline fluids, but also an important part of the modern industrial safety management system. It is particularly suitable for taking on heavy responsibilities at key application points with frequent maintenance, harsh working conditions and extremely high safety requirements.
| Brand | DIDTEK |
| Structure | Ball |
| Valve Material | Didtek provide cast steel, stainless steel, special alloy, CI, DI etc |
| Valve Type | Didtek Produce Ball Valve |
| Valve Test | 100% quantity tested before delivery |
| Valve Guarantee | 18 months after shipments and 12 months after installed |
| Valve Structure | Ball Valve |
| Valve Delivery | 15 - 30 days |
| Valve Sample | Sample Available by Didtek Valve |
| Valve Color | Customer request |
| Valve Packing | Plywood Case for Ball Valve |
| MOQ | 1 Set |
| Valve Certificate | API6D/CE/ISO9001/ISO14001 |
| Place of Origin | Zhejiang, China (Mainland) |
| Delivery Detail: | Shipped in 15-30 days after payment |
| Port | Shanghai Or Ningbo |
| Payment Terms | L/C,D/A,D/P,T/T, Western Union |
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