Standard Flange Gaskets
Style 1030 - Ring Gaskets for 300 lb ASME/ANSI Pipe Flanges
Phelps carries large inventory of gasket material for a wide range of application supporting many industries including water treatment, refineries, food processing, power plants, and other industrial applications. Although 1/8" and 1/16" are the most commonly ordered thickess, we inventory materials a wide range of thickness to choose from.
Commonly Ordered Materials
Ethylene Propylene, EPDM
Washers, seals, and gaskets
Silos & storage tank seals
Weather stripping & roofing material
Bumpers, architectural & window seals
Medical equipment seals, electrical connector seals
Condensate tubing for HVAC equipment, Compressor Grommets
Seals for electronics & electrical equipment, and outdoor electrical enclosures
50 Durometer: ASTM D 2000 3BA 508 C12, SAE J200 3BA 508 C12, MIL R-3065 RS 508 C1
60 Durometer: ASTM D 2000 3BA 608 C12, SAE J200 3BA 608 C12, MIL R-3065 RS 608 C1
70 Durometer: ASTM D 2000 3BA 708 C12, SAE J200 3BA 708 C12, MIL R-3065 RS 708 C1
Ozone, UV, saltwater and weather.
Water, steam, and oxidating environments
Very good low temperature flexibility
Good impact and abrasion resistance
Hydraulic phosphates and silicates, alkali, acids depending upon type and strength
2.6 lb (60 durometer EPDM)
2.7 lb (70 durometer EPDM)
NOVATEC 825F Engineered Graphite
An excellent steam sheet that works best in flanges
High temperature sealing applications
ASTM F 104 (Tests with 1/32" Thickness)
F 38 B Creep Relaxation
22 Hrs @ 212°F (100°C): 15%
22 Hrs @ 392°F (200°C): 35%
F 37 A Sealability
Fuel A @ 14.5 PSI/Gasket Load 1000 PSI: 0.25 ml/hr
F 37 B Sealability
Fuel A @ 9.8 PSI/Gasket Load 500 PSI: 0.5 ml/hr
Nitrogen @ 30 PSI/Gasket Load 3000 PSI: 0.1 ml/min
F 146 Thickness Increase
Oil #3, 5 Hrs @ 300°F: < 3%
Fuel B, 5 Hrs @ 73°F: < 4%
F 36 A Compressibility
@ 5000 PSI Gasket Load: 45%
Recovery: 10%
DIN 3535 Part 6 Gas Permeability
Nitrogen @ 580 PSI/Gasket Load 4640 PSI: 2 cc/min
DIN 52913 Stress Relaxation @ 7250 PSI
16 Hrs @ 347°F: Stress Retained > 6500 PSI
16 Hrs @ 572°F: Stress Retained > 5000 PSI
DIN 3754 48 Hrs @ 75°F Thickness Increase
H2S04 Sulfuric Acid 65% Concentration: 7%
NaOH Sodium Hydroxide 25% Concentration: 3%
NOVATEC 925F Engineered Graphite
Works best in high pressure flanges, pump casings, heat exchangers, lids, vessels, valve bodies and sight glasses
ASTM F104 (Tests 1/32" Thick)
F 38B Creep Relaxation:
22 hours @ 212°F (100°C): 12%
22 hours @ 392°F (200°C): 30%
F 37A Sealability:
Fuel A @ 14.5 PSI/Gasket Load 1000 PSI: .20 ml/hr
F 37B Sealability
Fuel A @ 9.8 PSI/Gasket Load 500 PSI: .06 ml/hr
Nitrogen @ 30 PSI/Gasket Load 3000 PSI: .075 ml/min
F 146 Thickness Increase:
Oil #3, 5 Hrs @ 300°F: < 2%
Fuel B, 5 Hrs @ 73°F: < 1%
F 36 A Compressibility:
5000 PSI Gasket Load, 15% F 36A Recovery: 40%
DIN 3535 Part 6 Gas Permeability:
Nitrogen @ 580 PSI/Gasket Load 4640 PSI: .02 cc/min
DIN 52913 Stress Relaxation @ 7250 PSI:
16 Hrs @ 347°F: Stress Retained > 6500 PSI
16 Hrs @ 572°F: Stress Retained > 5000 PSI
DIN 3754 48 Hrs @ 75oF Thickness Increases H2S04
Sulfuric Acid 65% Concentration: 6%
Na0H Sodium Hydroxide 25% Concentration: .5%
Compressed Aramid Fiber With Buna-N Nitrile Binder
Suitable for potable water applications (flange gaskets)
Resistance to high temperature creep with torque retention
Particularly good in 150 lb., and 300 lb., steam applications
ASTM F 104 (Tests 1/32" Thick)
F 38 B Creep Relaxation
22 Hrs @ 212°F (100°C): 9.3%
22 Hrs @ 392°F (200°C): 16.9%
F 146 Thickness Increase
Oil #3, 5 Hrs @ 300°F: 5% - 7%
Fuel B, 5 Hrs @ 73°F: 5% - 7%
F 36A
Compressibility @ 5000 PSI Gasket Load: 8.5% +/- 1%
Recovery: 57%
DIN 3535 Part 6 Gas Leak Rate
Nitrogen @ 580 PSI/Gasket Load 4640 PSI: .05 cc/min
DIN 52913 Stress Relaxation @ 7250 PSI
16 Hrs @ 347°F: > 5220 PSI (36 MPA)
16 Hrs @ 572°F: > 4060 PSI (28 MPA)
Hot Compression Test (1/16" Thickness Used For Testing)
7250 PSI @ 68°F(20°C): 8.2% Total
7250 PSI @ 572°F (300°C): 15% Total
The nitrile binder offers good resistance to various oils, petroleum derivatives
Resistance to high temperature creep with torque retention provides its sealing properties