Garlock GYLON 3500 User Manual

GYLON® Style 3500

MATERIAL PROPERTIES*:

Color:

Fawn

Composition:

PTFE with silica

Fluid Services (see chemical resistance guide):

Strong acids (except hydrofluoric), steam, solvents, hydrocarbons,
chlorine and cryogenics

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:

ABS (American Bureau of Shipping), FDA (Food and Drug
Administration) and USDA (US Department of Agriculture)

TYPICAL PHYSICAL PROPERTIES*:

ASTM F36

Compressibility, average, %:

7-12

ASTM F36

Recovery, %:

40

ASTM F38

Creep Relaxation, %:

18

ASTM D1708

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

2000 (13.8)

ASTM D792

Specific Gravity:

2.10

ASTM D1708

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

1600 (11.0)

ASTM F433

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

2

·°F):

0.36-0.45 (2.50-3.15)

ASTM D149

Dielectric Properties, range, volts/mil.

Sample conditioning

1/16”

1/8”

3 hours at 250oF

362

-

96 hours at 100% Relative Humidity:

61

-

ASTM F586

Design Factors

1/16” & Under

1/8”

"m" factor:

5.0

5

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

2750 (19.0)

3500 (24.1)

ROTT

Gasket Constants:

1/16”

Gb=949 a=0.253

Gs=2.6

1/8”

Gb=1980 a=0.169

Gs=0.393

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

0.22 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.

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