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HPG-ID Gasket
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Product: Views:317HPG-ID Gasket 
Unit price: Negotiable
MOQ:
Quantity:
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2019-01-12 12:08
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Details

HPG-ID is made of standard HPG gasket with a PTFE Internal machined seal. This ID design ensures an extremely tight seal at the bore and a resistance to effects from internal  pressure or aggressive media. HPG-ID also eliminates the need for exotic cored sealing materials.  Additionally, the PTFE Internal seal creates a longer effective distance than the standard HPG. By spanning the HPG platform  from end to end, the HPG-ID has a much greater electrical isolation in conductive media. Additionally, PTFE is not hygroscopic, so it does not have a tendency to absorb water making it even more attractive as the front line  of defense in electrical isolation.

Advantages:
- Applications with chemicals that would chemically attack GRE material.
- Installations where electrical isolation testing is performed shortly after hydro-testing
- Creates greater gap for greater electrical resistance
- Great for use in high Chloride applications that could cause Stress Corrosion Cracking  with a stainless steel core
- Eliminates the need for exotic metal cores that match the exotic metal flange material
- Available with G-11 carrier for 200°C

Application:
- Flange insulation in conjunction with cathodic protection
Insulation between dissimilar metals to prevent galvanic corrosion
- Wellhead isolation from interconnected flow lines
- Valve; Pump; Compressor and Christmas Tree connections
- Chemical applications
- Mating mismatched ring-joint to raised-face
- Eliminates the fluid trap common to ring type joint (RTJ) flanges where the potential of stress corrosion cracking exists with corrosive media.


Supply Specification:
The gasket will be 6.6mm thick. The sealing surface will contain a precision tapered groove to accommodate the controlled compression of a PTFE spring energized seal. Sealing element placement shall accommodate  either flat, raised or RTJ face flanges. The PTFE seal shall be spring and pressure energized. The G-10 retainer shall have a 800 volts/mil dielectric strength and a minimum 65,000 psi compressive strength.


http://www.tecson-group.com/

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