Garlock GYLON 3503 User Manual

GYLON® Style 3503 – OXYGEN SERVICE

MATERIAL PROPERTIES*:

Color:

Off –White

Composition:

PTFE with barium sulfate

Fluid Services (see chemical resistance guide):

Oxygen service, strong caustics, moderate acids, chlorine, gases, water,
steam, hydrocarbons, cryogenics and aluminum fluoride

Temperature1, °F (°C)

Minimum:

-450 (-268)

Maximum:

+500 (+260)

Pressure1, Maximum, psig (bar):

1200 (83)

P x T (max.)1, psig x °F (bar x °C):

1/32 and 1/16”:

350,000 (12,000)

1/8”

250,000 (8,600)

Flammability:

Will Not Support Flame

Bacterial Growth:

Will Not Support

Meets Specifications:

FDA (Food and Drug Administration) 21 CFR 177.1550

TYPICAL PHYSICAL PROPERTIES*:

ASTM F36

Compressibility, average, %:

4-10

ASTM F36

Recovery, %:

40

ASTM F38

Creep Relaxation, %:

11

ASTM D1708

Tensile, Across Grain, psi (N/mm2):

2000 (13.8)

ASTM D792

Specific Gravity:

2.80

ASTM D1708

Modulus @ 100% Elongation, psi (N/mm2):

1400 (9.6)

ASTM F433

Thermal Conductivity (K), W/m°K (Btu.·in./hr.·ft.

2

·°F):

0.29-0.38 (2.00-2.65)

ASTM D149

Dielectric Properties, range, volts/mil.

Sample conditioning

1/16”

1/8”

3 hours at 250oF

466

(2)

-

96 hours at 100% Relative Humidity:

59

-

ASTM F586

Design Factors

1/16” & Under

1/8”

"m" factor:

2.0

2.0

"y" factor, psi (N/mm2):

2350 (16.2)

2500 (17.2)

ROTT

Gasket Constants:

1/16”

Gb=289 a=0.274

Gs=6.61x10

-11

1/8”

Gb=444 a=0.332

Gs=1.29x10-2

SEALING CHARACTERISTICS*

ASTM F37B – Fuel A

DIN 3535 – Nitrogen

Gasket Load, psi (N/mm2):

1000 (7)

4640 (32)

Internal Pressure, psig (bar):

9.8 (0.7)

580 (40)

Leakage

0.04 ml/hr.

<0.015 cc/min

Notes:

* This is a general guide and should not be the sole means of selecting or rejecting this material. ASTM test results in accordance with ASTM F-104; properties

1

Based on ANSI RF flanges at our preferred torque. When approaching maximum pressure, continuous operating temperature, minimum temperature or 50% of

maximum PxT, consult Garlock Applications Engineering. Minimum temperature rating is conservative.

2

Indicates that the current arced around and not through the gasket. Dielectric strength will be higher than published.

GARLOCK
an EnPro Industries family of companies
1666 Division Street
Palmyra, NY 14522

Tel: 1-877-GARLOCK / 315.597.4811
Fax: [phone]
www.garlock.com

12/1/2016