Description
GESTRA GAV 6 Bellows Sealed Stop Valves DN15–DN250 | Steam Stop Valve
A range of sealed, in-line stop valves having twin ply bellows as standard throughout the range. These valves have been designed for use on steam, gas, liquid, condensate and water systems.
The standard GAV-T range comes complete with throttling plug and locking device.
The alternative GAV range has a flat disc.
The following tables clearly display the available sizes, pipe- line connections and available options for the standard and alternative ranges.
Standards
The product fully complies with the requirements of the Pressure Equipment Directive (PED) and carries the mark when so required.
Certification
The GAV 63F and GAV 63F-T are available with a manufacturer’s Typical Test Report.
The GAV 64F, GAV 65F, GAV 64F-T, GAV 65F-T, GAV 66F,
GAV 66F-T and GAV 66AF-T are available with certification to EN 10204 3.1.
Note: All certification/inspection requirements must be stated at the time of order placement.
Range and options
Standard GAV 6xF-T range – complete with throttling plug and locking device
| Material | Cast iron | SG iron | Cast steel | Stainless steel | |||||||
|
Model and connections |
GAV 63F-T | GAV 64F-T PN16 GAV 65F-T PN25 | GAV 66F-T | GAV 66AF-T
PN40 |
|||||||
| PN16 | KS10 | PN16 | PN25 | PN25 | PN40 | ASME150 | ASME300 | KS20 | |||
|
Sizes |
DN15 | • | • | • | • | • | • | • | • | • | |
| DN20 | • | • | • | • | • | • | • | • | • | ||
| DN25 | • | • | • | • | • | • | • | • | • | ||
| DN32 | • | • | • | • | • | • | |||||
| DN40 | • | • | • | • | • | • | • | • | • | ||
| DN50 | • | • | • | • | • | • | • | • | • | ||
| DN65 | • | • | • | • | • | • | |||||
| DN80 | • | • | • | • | • | • | • | • | • | ||
| DN100 | • | • | • | • | • | • | • | • | • | ||
| DN125 | • | • | • | • | • | ||||||
| DN150 | • | • | • | • | • | • | |||||
| DN200 | • | • | • | • | • | • | |||||
| DN250 | • | ||||||||||
Alternative GAV 6xF range – complete with flat disc option
| Material | Cast iron | SG iron | Cast steel | Stainless steel | |||||||
|
Model and connections |
GAV 63F | GAV 64F PN16 GAV 65F PN25 | GAV 66F | ||||||||
| PN16 | KS10 | PN16 | PN25 | PN25 | PN40 | ASME150 | ASME300 | KS20 | |||
|
Sizes |
DN125 | • | • | • | • | • | |||||
| DN150 | • | • | • | • | • | • | • | ||||
| DN200 | • | • | • | • | • | • | • | ||||
| DN250 | • | ||||||||||
| Optional balancing disc | DN125 | • | • | ||||||||
| DN150 | • | • | • | ||||||||
| DN200 | • | • | • | • | • | • | • |
GESTRA GAV 6 Bellows Sealed Stop Valves DN15–DN250 | Steam Stop Valve
GESTRA: The Ultimate Solution for Industrial Steam & Fluid Control Systems
GESTRA GAV 6 Bellows Sealed Stop Valves DN15–DN250
GAV 63F-T, 64F-T, 65F-T, 66F-T, 66AF-T | GAV 63F, 64F, 65F, 66F
Premium Bellows Sealed Stop Valves for Steam, Condensate & Process Systems
GESTRA GAV 6 Bellows Sealed Stop Valves are high-performance industrial isolation valves designed for zero external leakage, maximum operational safety, and long service life. Featuring a metal bellows sealing system, these valves eliminate stem leakage and ensure reliable shut-off in high-temperature and high-pressure applications.
The GESTRA GAV 6 series—including GAV 63F-T, 64F-T, 65F-T, 66F-T, 66AF-T, GAV 63F, 64F, 65F, and 66F—is trusted globally in power plants, refineries, chemical plants, and industrial utility systems.
Complete Size Range – DN15 to DN250
The GESTRA GAV 6 Bellows Sealed Stop Valves are available in a full industrial size range, ensuring compatibility with both small and large pipeline systems:
- DN15 (½”)
- DN20 (¾”)
- DN25 (1″)
- DN32 (1¼”)
- DN40 (1½”)
- DN50 (2″)
- DN65 (2½”)
- DN80 (3″)
- DN100 (4″)
- DN125 (5″)
- DN150 (6″)
- DN200 (8″)
- DN250 (10″)
This wide size availability makes GESTRA GAV 6 valves ideal for utility lines, main steam headers, and large process pipelines.
Key Features of GESTRA GAV 6 Bellows Sealed Stop Valves
Bellows Sealed Design – Zero Stem Leakage
The metal bellows seal provides:
- Absolute tightness to atmosphere
- Maximum safety for personnel
- Environmental protection
- Reliable performance under thermal cycling
Perfect for hazardous, high-temperature, and high-pressure media.
Optimized for Steam & High-Temperature Service
GESTRA GAV 6 stop valves are engineered for:
- Steam distribution systems
- Condensate return lines
- Thermal oil applications
- Industrial process media
They maintain stable sealing even during continuous operation and temperature fluctuations.
Robust Construction for Long Service Life
High-quality materials and precision manufacturing ensure:
- Excellent resistance to corrosion
- High mechanical strength
- Low maintenance requirements
- Reduced total cost of ownership
Technical Overview – GESTRA GAV 6 Bellows Sealed Stop Valves
| Specification | Description |
|---|---|
| Product Type | Bellows Sealed Stop Valve |
| Brand | GESTRA |
| Series | GAV |
| Models | 63F-T, 64F-T, 65F-T, 66F-T, 66AF-T, 63F, 64F, 65F, 66F |
| Size Range | DN15 – DN250 |
| Sealing Type | Metal Bellows Seal |
| Media | Steam, Condensate, Thermal Oil, Process Fluids |
| Industries | Power Plant, Chemical, Refinery, Industrial Utilities |
Industrial Applications
The GESTRA GAV 6 Bellows Sealed Stop Valves DN15–DN250 are widely used in:
- Power generation plants
- Steam and condensate networks
- Petrochemical and chemical industries
- Oil & gas refineries
- Industrial utility and process systems
The bellows-sealed design guarantees safe and leak-free isolation even under extreme operating conditions.
Why Choose GESTRA GAV 6 Bellows Sealed Stop Valves?
- Zero external leakage at valve stem
- Wide size range DN15–DN250
- Ideal for high-temperature steam service
- Environmentally friendly design
- Proven GESTRA engineering and reliability
Choosing GESTRA GAV 6 Bellows Sealed Stop Valves means choosing safety, durability, and compliance with international industrial standards.
Buy GESTRA GAV 6 Bellows Sealed Stop Valves DN15 to DN250
If you are searching for a high-quality bellows sealed stop valve for steam or industrial process applications, the GESTRA GAV 6 series is the right solution.
📞 Contact us today for:
- Best competitive pricing
- Technical datasheets and valve selection support
- Fast delivery
- Professional industrial consultation
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PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
