PTFE Products

Structured GPT 400

Structured GPT 400

Structured GPT 400

Description

Technical Specification

SPITMAAN®GPT 400 is structured / modified PTFE filled with Glass microspheres manufactured by a special process which induces resistance to creep due to cold flow.

Suitable for 

SPITMAAN®GPT 400 structured / modified PTFE gasket sheet is suitable for practically all applications in process industries within the recommended temperature and pressure range.

Appropriate Medium

Steel & Iron, Fertiliser, Refinery, Chemical, Paper & Pulp, Sugar, EPC, Pharmaceutical, Power, Textile, OEM, Petrochemical, Food.

Features & Benefits
  • Modified/Structured PTFE
  • High Tensile Strength compared to skieved PTFE
  • Minimum Creep
  • Dimensionally Stable
  • Easy to Install
  • Easy removal of gasket
Product Sizes

1500 mm X 1500 mm sheet size

Standard thicknesses are 1.5 mm, 3 mm, 5 mm

Service

SPITMAAN®GPT 400 is suitable for chemical processing & petrochemical plants in acid, caustic, solvents, hydrocarbons, steam, water, chlorine and cryogenics.

Technical Data

Property
Units
Values

Temperature(Typical operating Range1 )

 Minimum -450°F ( -268°C)
Maximum 500°F (260°C)  

Pressure

 Vaccum up to 2900 psi (200 bar)

pH

 Range2 0-14

Compressibility

 ASTM F36 M 20-30%

Recovery 

 ASTM F36 M 43%

Tensile Strength

 ASTM F152 98 Kg/cm²

Specific Gravity

 ASTM D 792 1.7 g/cm²

Creep Relaxation

 ASTM F38 33%

Elongation

 ASTM F152 182%

Design Factor "m"

 ASTM F586 2.5

Design Factor "y"

 ASTM F586 1650 psi / 11.3 (N/mm²)

Notes

  1. For applications outside the typical use range, SPITMAAN® recommends engineering design calculation to specific application and extra care to be taken during installation. Uniform torquing during installation using ASME recommended methodology is mandatory. Retorquing after a thermal cycle should be done after cooling down of equipment is recommended. Please contact SPITMAAN® if further guidance is required.
  2. Except molten alkali metals and elemental fluorine.