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Leader Spiral Wound Gaskets

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Leader SRI HDLE (High Density Low Emissions) SpiralWound Gasket

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DESCRIPTION

Style SRI Spiralwound gasket constructed with high density >98% purity inhibited grade graphite that extends slightly above the metal windings and wound with metal filler to a specific pressure setting on the windings to ensure uniform compression under load.

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Product Data Sheet

APPLICATION

(Petro-) Chemical Industry, Steam, On- and Offshore exploration, pipeline systems, pressure vessels and exchangers.

ADVANTAGES

CHEMICAL COMPATIBILITY

Spiral Wound Gaskets can be used in a wide variety of media, i.e. a pH range varying from 0-14. Application/ compatibility guide is available on request. Temperature from –450 °F up to 850 °F (steam up to 1200 °F)

DELIVERY OPTIONS

Standard gaskets are manufactured according EN1514-2 for EN/DIN-flanges class PN10 – PN400 and ASME B16.20 / EN 12560-2, for flanges acc. ASME B16.5 class 150-2500lbs. Also non-standard equipment gaskets can be manufactured up to a diameter of 4000 mm.We have a large stock in Carbon Steel and SS316L. Other materials are also available.

TEMPERATURE

Spiral Wound Gaskets can be used in a wide variety of media, i.e. a pH range varying from 0-14. Application/ compatibility guide is available on request. Temperature from –450 °F up to 850 °F (steam up to 1200 °F).

APPROVALS & CERTIFICATES

  • EN10.204 3.1
  • NACE MR0175

SEALING CHARACTERISTICS

  • Excellent sealing characteristics for a wide range of seating stresses
  • Suitable for low torque flange-constructions
  • High pressure and temperature range
  • Broad chemical resistance (pending on the metallic materials and sealing layers)
  • Firesafe
  • Design suitable for fluctuating temperatures and pressures
  • blow out safe

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TECHNICAL DATA

max Temperature [°F] See material table below
max Pressure [psi] ASME B16.5 2500 Class
M-Value 3
Y- Value [psi] 10000
Gasket required flange roughness [Ra micron] 3,2-6,3
Gasket required flange roughness [RMS] 125-250
max Seating stress [Qsmax bei RT EN13555] [n/mm2] 300
Advice Seating stress at assembly [psi] 12500
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