PRODUCT DESCRIPTION
Garlock Gaskets - GYLON® Family - Styles 3500
BENEFITS: |
- Tighter seal
- Improved performance over conventional PTFE
- Reduced product loss and emissions
- Reduced creep relaxation
- Unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets
- Excellent bolt torque retention
- Chemical resistance
- Withstands a wide range of chemicals for extended service life in a wide variety of applications
- Cost savings
- Cuts operational costs through reduced:
- Fluid loss
- Energy consumption
- Maintenance costs
- Inventory costs
- Waste
- Largest sheet sizes*
- Offers some of the largest sheet sizes in the industry
- Improved material utilization reduces waste
- Branding and color coding
- Easy identification of superior GYLON® products
- Reduces misapplication and use of unauthorized, inferior substitutes
|
MEDIA: |
- Strong acids (except hydrofluoric), solvents, hydrocarbons, water, steam, chlorine, and cryogenics.
- Conforms to FDA regulations.
|
NOTES:
1) ASTM F37B Sealability, milliliters/hour (1/4" thick)
ASTM Fuel A (isooctane):
Gasket load: 3,000 psi (20.7 N/mm2), Internal pressure: 30 psig (2 bar)
2) DIN 3535 Part 4 Gas Permeability, cc/min. (1/4" thick)
Nitrogen:
Internal pressure: 580 psig (40 bar), Gasket load: 4,640 psi (32 N/mm2)
* 60" x 60" (1524 mm x 1524 mm), 70" x 70" (1778 mm x 1778 mm), 60" x 90" (1524 mm x 2286 mm)
Typical Physical Properties
|
3500 |
3504 |
3510 |
Color |
|
Fawn
GYLON® |
Blue
GYLON® |
Off-white
GYLON® |
Composition |
|
PTFE w/ silica |
PTFE w/
alumino silicate
microspheres |
PTFE w/
barium
sulfate |
Temperature1 |
Minimum
Continuous Max. |
-450°F
(-268°C)
500°F
260°C) |
-450°F
(-268°C)
500°F
260°C) |
-450°F
(-268°C)
500°F
260°C) |
Pressure1cont. max.1
|
psig (bar) |
1,200 (83) |
800 (55) |
1,200 (83) |
P x T, max.1
1/32", 1/16"
(0.8mm, 1.6mm)
psig x °F 1/8"
(bar x °C) (3.2mm) |
|
350,000(12,000)250,000(8,600) |
350,000(12,000)250,000(8,600) |
350,000(12,000)250,000(8,600) |
Sealability
ASTM Fuel A ml/hr
(ASTM F37B)3
|
|
0.22 |
0.12 |
0.04 |
Gas Permeabilitycc/min
(DIN 3535 Part 4)4
|
|
<0.015 |
<0.015 |
<0.015 |
Creep Relaxation (ASTM F38) % |
|
18 |
40 |
11 |
Compressibility
Range(ASTM F36) % |
|
7-12 |
25-45 |
4-10 |
Recovery (ASTM F36) % |
|
>40 |
>30 |
>40 |
Tensile Strength ps(ASTM D1708)
(N/mm2) |
|
2,000
(14) |
2,000
(14) |
2,000
(14) |
Flammability |
Will not support flame |
Bacterial Growth |
Will not support |
NOTES:
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 Engineering.
2 For 3565, HP 3560 and HP 3561, 1/16" thickness only.
3 ASTM F37B Sealability
ASTM Fuel A (isooctane):
Gasket load = 500 psi (3.5 N/mm2), Int. pressure = 9.8 psig (0.7 bar)
Nitrogen:
Gasket load = 3,000 psi (20.7 N/mm2), Int. pressure = 30 psig (2 bar)
4 DIN 3535 Part 4 Gas Permeability, cc/min. (1/16" thick)
Nitrogen:
Gasket load = 4,640 psi (32 N/mm2), Int. pressure = 580 psig (40 bar)
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 based on 1/32" (0.8mm) sheet thickness.
* Values do not constitute specification limits