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🏭 Wholesale Distribution - Bulk Pricing - 1M+ Stock - Brand Name Products - USA w/ 🌎 Shipping
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Garlock GRAPH-LOCK® Style 3128 HOCHDRUCK® - 0.120 in. thick / 39.4in. x 39.4in.

31280-7015 by Garlock | GRAPH-LOCK® | Style 3128 HOCHDRUCK® | 0.120in Thick | 39.4in x 39.4in

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$852.98
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$852.98
$794.55
$794.55 - $794.55
$794.55
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PRODUCT DESCRIPTION

Garlock Gaskets - GRAPH-LOCK® Gasketing - Style 3128
BENEFITS:
  • Excellent Resistance
    • Pure exfoliated graphite flake material excels in extreme conditions, withstanding heat, pressure and aggressive chemicals
    • Proven fire safe
  • Reliable seal
    • Seals easily under moderate bolt load, offers superior torque retention
    • Retains dimensional stability in high temperatures; seals tightly even during pressure fluctuations
  • Versatility
    • Available in two grades - industrial grade is 98% pure; nuclear grade is 99.5% pure
    • Available as standard homogeneous sheet or metal-inserted sheet for applications requiring extra strength

Typical Physical Properties

3124/3126 3123/3125 3125 SS 3125 TC 3128
Description 316SS Wire Inserted Honogeneous/ Laminated 0.002" 316SS Foil insert 0.004" 316SS Tang Inserted Reinforced Graphite
Temperature1 Minimum
Max. in atmosphere Max. in steam Pressure, Max.1 psig (bar)		 -400°F (-240°C) 850°F (454°C) 1200°F (650°C) 2,000 (140) -400°F (-240°C) 850°F (454°C) 1200°F (650°C) 2,000 (140) -400°F (-240°C) 850°F (454°C) 1200°F (650°C) 2,000 (140) -400°F (-240°C) 850°F (454°C) 1200°F (650°C) 2,000 (140) -400°F (-240°C) 850°F (454°C) 1200°F (650°C) 2,000 (140)
PxT, max1 (psig x °F): 1/32", 1/16"
(bar x °C): (0.8mm, 1.6mm)
(1/8" (3.2mm)		 700,000(25,000)350,000 (12,000) 700,000(25,000)350,000 (12,000) 700,000(25,000)350,000 (12,000) 700,000(25,000)350,000 (12,000) 700,000(25,000)350,000 (12,000)
Sealability (ASTM F37B)2
ASTM Fuel A ml/hr
Nitrogen ml/hr
1.53 1.5
0.2/0.3 0.5
0.25 0.2
0.33 0.3
0.2 0.1
Gas Permeabilitycc/min (DIN 3535 Part 4)4 0.4 0.4 0.4 0.4 0.4
Creep Relaxation(ASTM F38) % 20 5/10 12 15 10
Compressibility Range(ASTM F36) % 35 40 35 35 30-40
Recovery (ASTM F36) % 20 >15 >20 >20 20
Tensile Strength5 psi(ASTM F152) (N/mm2)
2,300(15.9)
600(4)
4,5005(31)
3,500(24)
4,500(31)

Order Code
(Part Number)		 Style Thickness
(in.)		 Width
(in.)		 Length
(in.)
31280-7031 3128 0.040" 39.4" 39.4"
31280-7131 3128 0.040" 59.1" 59.1"
31280-7014 3128 0.060" 39.4" 39.4"
31280-7104 3128 0.060" 59.1" 59.1"
31280-7027 3128 0.80" 39.4" 39.4"
31280-7127 3128 0.80" 59.1" 59.1"
31280-7015 3128 0.120" 39.4" 39.4"
31280-7105 3128 0.120" 59.1" 59.1"

NOTES:
1) Based on ANSI RF flanges at our preferred torque. Maximum temperature of +1,000°F (+540°C) for GRAPH-LOCK® HT. Consult Garlock Applications Engineering when approaching maximum pressure or 50% of maximum PxT.
2) ASTM F37B Sealability, milliliters/hour (1/32" thick)
ASTM Fuel A (isooctane): Gasket load = 500 psi (3.5 N/mm2),
Internal pressure = 9.8 psig (0.7 bar)
Nitrogen: Gasket load = 3,000 psi (20.7 N/mm2),
Internal pressure = 30 psig (2 bar)
3) 1,000 psi gasket load
4) DIN 3535 Part 4 Gas Permeability, cc/min. (1/16" thick)
Nitrogen: Gasket load = 4,640 psi (32 N/mm2),
Internal pressure = 580 psig (40 bar)
5) 1/32" only (thicker gaskets have lower tensile due to metal construction)
* Values do not constitute specification limits
Refer to "Military Specifications" section under "Gasketing Terms" for order/inquiry requirements. To ensure receipt of product with the required DTL 24696 branding, certification will be required; associated fees based on quantity.