Statotherm V Cover seal V901/

Statotherm V cover seals V901 (self-sealing) are precision-made seals made from permanently elastic, expanded graphite (purity ≥ 99%) without binders or fillers. Cover seals are successfully used as self-sealing closures in high pressure valves, e.g. for power stations at high temperatures and up to 1,000 mm diameter.

Statotherm V Cover seal V901/

Product Description

Features:
  • Self-sealing
  • Precision-made seals 
  • Made from permanently elastic, expanded graphite (purity ≥ 99%) 
  • Made without binders or fillers 
Benefits:
  • Easy to assemble and disassemble
  • No damage to the sealing surfaces
  • Long service life
  • Do not harden
  • Optimized sealing result
  • Minimum wear of the contact surface

Technical Specifications

Operating range:

Pressure: p = 500 bar
Sliding velocity: vg = 2 m/s
Temperature

  • Continuous operation:
    t = -200 °C … +500 °C
  • Steam: tmax+550°

Recommended surface roughness:
RZ = 10 - 40 μm
Chemical resistance: pH = 0 … 14
Resistant to almost all organic and inorganic acids, alkalis, oils and solvents.

Density (raw material): 0.7 or 1.0 g/cm3
V901/B5: density 1.3 g/cm3
V901/B6: density 1.4 g/cm3
V901/B7: density 1.6 g/cm3
V901/B8: density 1.8 g/cm3

Recommended applications:

Industries

  • Process industry
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • Building services industry
  • Valves
Variants:

Rectangular profile (without, or with one or with two end caps):
V901/R7, V901R7K, V901RKK, V901RWK

Outer chamfer (without, with one or with two caps):
V901/A7, V901A7K, V901AKK

Inner chamfer (without, with one or with two caps):
V901/I7, V901I7K, V901I
For applications in nuclear power plants, with a graphite purity > 99,85%:
V901/7N

Notes:

Design and ordering information
The design of the cover seal depends on the pressure and dimensions. Please specify the operating conditions and profile shape with any enquiries or orders (example: pressure in bar, diameter d1 and d2, profile shape I, A or R).

Forms of supply:
  • Die-pressed rings, to drawing, measurements or other agreement