Ball Valve - Type 37000 | Ibor Valves

Ibor Type 37000 Ball Valve

The Ibor 37000 is a two-way ball valve for isolation service in industrial liquid and gas piping. The DIB seat arrangement is used where controlled sealing of the ball cavity and defined upstream/downstream seat behaviour are required.

Seat design and DIB variants

• DIB I: double piston effect on both upstream and downstream seats. Both seats can seal against pressure from either side; cavity pressure relief must be considered in the piping or valve specification.
• DIB II: double piston effect on the downstream seat and single piston effect on the upstream seat. This arrangement provides differentiated seat response and may allow upstream-side cavity pressure relief depending on the design basis.
• Seat sealing injector: available for emergency or maintenance-assisted sealing of the seat area.

Stem sealing and maintenance features

• Stem sealing injector for field sealing support.
• Stem extension or bonnet extension for insulated lines, buried service, or access above platforms.
• Fugitive-emissions-oriented stem sealing design, subject to project specification.
• Locking device for isolation management and maintenance lockout.
• Hardfacing or overlay on the seat area, or on all wetted parts when required by erosion, corrosion, or sour/process media conditions.
• Heating or cooling jacket for viscous fluids, crystallising media, thermal control, or process temperature stability.

End connections and standards

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

Pressure class, temperature range, body material, trim material, seat material, and gasket selection should be checked against the process design conditions, flange rating, corrosion allowance, and applicable piping class.

Typical media and operating conditions

• Steam and condensate systems.
• Hot water and thermal oil circuits.
• Hydrocarbons, fuel gas, and process gas lines.
• Industrial utilities, nitrogen, air, and inert gas services.
• Liquid process lines requiring tight isolation and maintainable seat sealing.

Actuation options

• Manual lever or gearbox for local operation.
• Pneumatic, electric, or hydraulic actuator for remote operation, interlocking, ESD logic, or process control system integration.
• Limit switches, solenoids, position transmitters, and local control accessories can be specified according to site standards.

Selection guidance

Select DIB I when the isolation philosophy requires active sealing capability from both sides of the valve. Select DIB II when the piping design requires different upstream and downstream seat behaviour, especially where cavity pressure management is part of the valve selection logic.

FAQ

Is the valve intended for throttling? No. This is primarily an isolation ball valve; throttling use should be avoided unless confirmed by the manufacturer.

When are sealing injectors useful? They support maintenance intervention where seat or stem leakage must be controlled without immediate valve removal.

What documentation should be specified? Material certificates, pressure test records, fugitive emission requirements, NDE, coating, and actuator test documentation should be defined in the purchase specification.