www.starflex.net Home | Sitemap  
about us products
gasket selection engineering info
quality standards news
contact us feedback
Starflex Sealing India Pvt. Ltd
 
Products --> Semi Metallic --> Spiral Wound --> Style OG
 
STYLE OG
Spiral Wound Gasket with outer ring.

Usage
Flat and raised faced flanges.
 
  MATERIAL MAXIMUM TEMPERATURE
Fillers Starflon/PTFE 260 °C
Stargraf 500 °C
Metals SS 304 537 °C
Sheet size SS 316 L 815 °C
 
TECHNICAL BENEFITS
1. Profile suited for cyclic loading.
2. Outer ring helps in centering gasket on bolts.
3. Outer ring provides a compression stop.
 
Design parameters
 
GASKET THICKNESS MAXIMUM INSIDE DIMENSION RECOMMENDED FLANGE WIDTH RECOMMENDED COMPRESSED THICKNESS

3 mm (0.125")

Up to 20" 1" 0.09"/ 0.10"
3 mm (0.125") 20" to 40" 3/4" 0.09"/ 0.10"
4.5 mm (0.175") Up to 40" 1" 0.125"/ 0.135"
4.5 mm (0.175") 40" to 60" 1" 0.125"/ 0.135"
4.5 mm (0.175") 60" to 70" 7/8" 0.125"/ 0.135"
4.5 mm (0.175") 70" to 75" 3/4" 0.125"/ 0.135"
6.35 mm (0.250") 90" 1" 0.18"/ 0.20"
7.24 mm (0.285") 165" 1" 0.20"/ 0.22"
 
Tolerance capabilities as per ASME B16.20
 
GASKET DIAMETER INSIDE DIAMETER OUTSIDE DIAMETER
Up to 200 mm (8") ± 0.4 mm (± 0.016") ± 0.8 mm (± 0.03")
250 to 610 mm (10" to 24") ± 0.8 mm (± 0.03") ± 1.6 mm (± 0.06")
660 to 864 mm (26" to 34") ± 0.8 mm (± 0.03") ± 1.6 mm (± 0.06")
915 to 1524 mm (36" to 60") ± 1.25 mm (± 0.05") ± 1.6 mm (± 0.06")
 

APPLICABLE STANDARDS
1. ASME B16.20 for ASME B16.5 and 16.47 series A and series B flanges.

 
Design Factors
m = 3
y = 10,000 psi
 
Recommended surface finish
125 - 250 rms

 
 
 
Home :: About Us :: Products :: Gasket Selection :: Engineering Info :: Quality Standards
News :: Contact Us :: Feedback :: Sitemap