Ball Valve - Type 19001 | Ibor Valves

Ibor Type 19001 Ball Valve

The Ibor 19001 is a 2-way ball valve used for on/off isolation in industrial liquid and gas lines. The valve can be configured with DIB I or DIB II seat arrangements, depending on the required cavity sealing philosophy, pressure direction, and maintenance isolation requirements.

Seat and Stem Configuration

• DIB I: double piston effect on both upstream and downstream seats. Used where pressure-assisted sealing is required from both directions.
• DIB II: double piston effect downstream and single piston effect upstream. Selected where controlled cavity pressure relief is required by the valve design.
• Secondary soft seat: auxiliary sealing element for applications requiring additional shut-off capability.
• Stem sealing injector: provision for sealant injection during maintenance or leakage mitigation.
• Extended stem or bonnet: used for thermal insulation, cryogenic/low-temperature layouts, or elevated-temperature pipework where operator access must be maintained.
• Low fugitive-emission design: relevant for hydrocarbons, process gases, and regulated plant areas.
• Locking device: prevents unintended operation during isolation or maintenance work.

End Connections and Standards

• Flanged ends: ASME B16.5, GOST 12815-80, EN 1092-1
• Socket weld: ASME B16.11
• Butt weld: ASME B16.25
• NPT threaded ends: ASME B1.20.1
• BSPP / BSPT threaded ends: BS 21

Typical Applications and Media

• Chemical and petrochemical process lines
• Hydrocarbon service, fuel gas, process gas, and utility gas systems
• Steam and condensate isolation, subject to seat and material limits
• Power plant auxiliary systems and industrial utilities
• High-viscosity fluids when supplied with a heating jacket

Operating and Selection Notes

Pressure class, temperature range, body material, trim material, and seat material must be selected against the actual medium, design pressure, design temperature, corrosion allowance, and plant piping class. Compatibility of elastomers or soft seats must be checked for hydrocarbons, solvents, steam, and chemically aggressive fluids.

A heating jacket is used where the process fluid must remain above a minimum temperature to avoid viscosity increase, crystallization, or solidification. For insulated or hot lines, an extended stem or bonnet reduces heat transfer to the operator interface and improves accessibility.

Actuation Options

• Manual lever for smaller sizes and lower operating torque
• Gear operator for larger sizes or higher differential pressure
• Pneumatic, electric, or hydraulic actuator when remote operation, interlocking, or ESD integration is required
• Limit switches, solenoid valves, position transmitters, and local override can be specified according to control philosophy

Variant Comparison

• DIB I: preferred when double isolation from both sides is required and cavity pressure management is addressed by the system design.
• DIB II: preferred where one seat provides pressure relief behavior while the other provides double piston effect sealing.
• Secondary soft seat: considered where tight shut-off is important and the process fluid is compatible with the soft sealing material.

Documentation and Testing

Project documentation may include pressure test certificates, material certificates to EN 10204 3.1, dimensional standards, seat leakage test requirements, and fugitive-emission requirements where applicable. These items should be defined in the valve datasheet or purchase specification.

FAQ

Is this valve intended for throttling?
It is primarily an isolation valve. Continuous throttling should be avoided unless the trim and operating conditions are specifically evaluated.

When is DIB II selected instead of DIB I?
DIB II is selected when the application requires a defined cavity pressure relief behavior together with directional sealing logic.

Can it be used on steam?
Yes, if the body, seat, stem packing, pressure class, and temperature limits are suitable for the specified steam conditions.