GESTRA M33F ISO GBV Ball Valve | Full Bore API 6D & API 607 | ASME 150/300

GESTRA M33F ISO GBV Ball Valve | Full Bore API 6D & API 607 | ASME 150/300

Produced in accordance with API 6D the M33F ISO full bore two-piece body ball valve with floating ball, has an API 607 firesafe proof design. It is designed for use as an isolating valve, not a control valve. It can be used with the majority of industrial fluids on applications, which include steam, condensate, water, oil, and other fluids within its operating range. It is not recommended for gases applications. The M33F ISO ASME has as standard an ISO mounting pad in accordance with ISO 5211.

Firesafe design

In normal working conditions, the ball rests against two PDR 0.8 seats ensuring total closure. When the valve is submitted to temperature above the limits the seats can withstand, the seat becomes deformed and renders to extrusion. When the seats have been totally destroyed, the ball will come to rest firmly against the metal seat in the cap, producing a metal-to-metal closing. This secondary seat in the valve cap ensures the valve will operate to international API 607 standards.

M33F3 ISO Stainless steel body, PDR 0.8 seats (for high temperatures) and ISO mounting.

DN50, DN65, DN80, DN100, DN150 and DN200.

Standard flange ASME B 16.5 Class 150 and 300 with face-to-face dimensions according to B 16.10.

Flow characteristic Modified linear
Port Full bore
Leakage test procedure to ISO 5208 (Rate A)/EN 12266-1 (Rate A) and BS 5351 and BS 5351
Antistatic device Complies with ISO 7121 and BS 5351

GESTRA M33F ISO GBV Ball Valve | Full Bore API 6D & API 607 | ASME 150/300

GESTRA: The Ultimate Solution for Industrial Steam & Fluid Control Systems

DN 50 to DN 200 – ASME 150 & ASME 300 Industrial Ball Valve

High-Performance Full Bore Ball Valve for Critical Industrial Applications

The GESTRA M33F ISO GBV Ball Valve with Full Bore is a premium industrial ball valve designed for high-reliability flow isolation in the most demanding environments. Manufactured according to API 6D, API 607 Firesafe, ASME, and ISO M33F standards, this valve delivers maximum safety, tight shut-off, and long-term durability.

Engineered for oil & gas, petrochemical, power plant, and process industries, the GESTRA GBV Ball Valve DN 50 to DN 200 is available in ASME Class 150 and ASME Class 300, making it a trusted solution for both medium and high-pressure pipeline systems.

Full Bore Design for Optimal Flow Performance

The full bore (full port) design ensures:

  • Zero flow restriction
  • Minimal pressure drop
  • Improved system efficiency
  • Compatibility with pigging operations

This makes the GESTRA Full Bore Ball Valve ideal for critical pipeline and transmission systems.


API 6D Certified Ball Valve for Pipeline Applications

Compliance with API 6D ensures:

  • High structural integrity
  • Bubble-tight shut-off
  • Long service life under harsh operating conditions

The GESTRA GBV API 6D Ball Valve is suitable for onshore and offshore pipeline installations.


API 607 Firesafe Ball Valve – Maximum Safety Assurance

The API 607 Firesafe certification guarantees that the valve:

  • Maintains sealing integrity during and after fire exposure
  • Minimizes leakage of hazardous fluids
  • Meets international fire safety regulations

This makes the GESTRA M33F Firesafe Ball Valve a critical safety component in high-risk environments.


Wide Size Range: DN 50 to DN 200

Available sizes include:

  • DN 50
  • DN 65
  • DN 80
  • DN 100
  • DN 150
  • DN 200

This range provides flexibility for various pipeline diameters and industrial requirements.


ASME Class 150 & ASME Class 300 Pressure Ratings

The GESTRA GBV Ball Valve is available in:

  • ASME 150 Ball Valve
  • ASME 300 Ball Valve

Ensuring reliable performance in low to medium pressure systems across multiple industries.


ISO M33F Certified Quality & Robust Construction

Manufactured under ISO M33F standards, this valve offers:

  • Precision engineering
  • Consistent quality control
  • High resistance to corrosion and temperature

The robust construction guarantees low maintenance costs and extended operational life.

Specification Description
Product Type Ball Valve
Brand GESTRA
Model GBV
ISO Standard M33F
Bore Type Full Bore
Valve Standard API 6D
Firesafe Standard API 607
Size Range DN 50 – DN 200
Pressure Class ASME 150, ASME 300
Applications Oil & Gas, Power Plant, Petrochemical, Process Industry

The GESTRA M33F ISO GBV Ball Valve Full Bore is widely used in:

  • Oil & gas transmission pipelines
  • Petrochemical and chemical plants
  • Power generation facilities
  • Steam and condensate systems
  • Refinery and process control systems
  • Offshore and onshore installations

Its firesafe design and tight shut-off capability make it ideal for critical isolation and safety applications.

  • Internationally certified (API, ASME, ISO)
  • High safety and fire resistance
  • Reduced downtime and maintenance
  • Long-term cost efficiency
  • Trusted GESTRA brand reliability

Investing in the GESTRA M33F ISO GBV Ball Valve means choosing performance, safety, and compliance.

Looking for a full bore API 6D firesafe ball valve with ISO M33F certification for your industrial project?
The GESTRA GBV Ball Valve DN 50 to DN 200 ASME 150 & ASME 300 is the perfect solution.

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  • Best competitive pricing
  • Official datasheets & certificates
  • Fast delivery
  • Professional technical support

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