Three-Piece Instrument Ball Valves: Definition, Parameters, Features & Applications

1. Definition of Three-Piece Instrument Ball Valve

The three-piece instrument high-pressure ball valve is suitable for various pipelines with a pressure range of PN1.0Mpa-20Mpa and an operating temperature range of -29~180℃ (with reinforced PTFE sealing rings) or -29~300℃ (with para-phenylene sealing rings). It is used to cut off or connect the medium in the pipeline.

By selecting different materials and connection methods, it can be widely applied in fields such as petroleum, chemical engineering, metallurgy, power plants, water treatment, food processing, Chinese patent medicine extraction, beverages, protein processing, biological fermentation, and HVAC (Heating, Ventilation, and Air Conditioning).

2. Technical Parameters of Three-Piece Instrument Ball Valve

• Maximum Operating Pressure: Up to 207bar (3000psig)

• Operating Temperature Range: -28℃ to 232℃

• Multiple port types available: Ferrule, threaded, welded, etc.

• Port Sizes: 1/4in to 2in or 3mm to 50mm

• Three-piece precision casting structure

• Internal Bore: 4.8mm to 38.1mm

• Pneumatic or electric actuators optional

• Straight-through valves allow bidirectional flow

3. Product Features of Three-Piece Instrument Ball Valve

• Integrated valve seat/packing design

• Wide temperature range

• Integrated valve stem/ball

• Panel mounting thickness up to 1/4"

• Bidirectional flow capability

• Handle indicates flow direction

• Uniform operating pressure throughout the flow path

• Handle stop pin

• Color-coded handle

• Each product undergoes factory testing

• Manual, electric, or pneumatic control options

• Three-way ball valves can provide sealing function in the intermediate position

4. Application Fields of Three-Piece Instrument Ball Valve

• Sample extraction/distribution systems in laboratories

• Control panels

• R&D laboratories

• Specialty gases

• Chemical transfer

• Pilot plants