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Garlock Graph-Lock 3123 Full-Face Gasket

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GRAPH-LOCK® 3123: The graphite flake has been acid washed, expanded under heat, and then compressed into sheets with a minimum graphite content of 98%. For thicknesses under 1/16” homogenous graphite is used. For thicknesses over 1/16” laminated graphite is used. The laminated graphite sheets are bonded with a proprietary adhesive.

PERFORMANCE & SPECIFICATIONS

GRAPH-LOCK® 3123: The graphite flake has been acid washed, expanded under heat, and then compressed into sheets with a minimum graphite content of 98%. For thicknesses under 1/16” homogenous graphite is used. For thicknesses over 1/16” laminated graphite is used. The laminated graphite sheets are bonded with a proprietary adhesive.

  •  Performance
    • Min Temperature (F) -400°
    • Max Temperature (F) 850°
    • Max Pressure (PSI) 2000
  • Features and Benefits
    • Proven fire-safe
    • Pure exfoliated graphite flake material excels in extreme conditions, withstanding heat, pressure and aggressive chemicals
    • Seals easily under moderate bolt load, offers superior torque retention
    • Retains dimensional stability in high temperatures; seals tightly even during pressure fluctuations
Inner Diameter (In.)
Inner Diameter
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Pressure Rating (lbs)
Pressure Rating
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Outer Diameter (In.)
Outer Diameter
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Thickness (In.)
Thickness Nominal
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Grouped product items
PART NUMBER Nominal Pipe Size Pressure Rating (lbs) Flange Standard (ASME) Thickness (In.) Inner Diameter (In.) Outer Diameter (In.) Ships Within
PRICE
ADD TO CART
1/2" 150# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1/2

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 0.840

Outer Diameter (In.) 3.500

Ships Within 1-2 Days

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Starting at: $1.64
PRICE QTY
$18.13
1/2" 150# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1/2

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 0.840

Outer Diameter (In.) 3.500

Ships Within 1-2 Days

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Starting at: $2.08
PRICE QTY
$16.55
1/2" 150# 1/8" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1/2

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/8

Inner Diameter (In.) 0.840

Outer Diameter (In.) 3.500

Ships Within 1-2 Days

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Starting at: $3.55
PRICE QTY
$23.37
1/2" 300# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1/2

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 0.840

Outer Diameter (In.) 3.750

Ships Within 1-2 Days

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Starting at: $1.76
PRICE QTY
$18.85
1/2" 300# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1/2

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 0.840

Outer Diameter (In.) 3.750

Ships Within 1-2 Days

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Starting at: $2.27
PRICE QTY
$17.42
1/2" 300# 1/8" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1/2

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/8

Inner Diameter (In.) 0.840

Outer Diameter (In.) 3.750

Ships Within 1-2 Days

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Starting at: $4.11
PRICE QTY
$25.21
3/4" 150# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 3/4

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 1.060

Outer Diameter (In.) 3.880

Ships Within 1-2 Days

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Starting at: $1.84
PRICE QTY
$15.45
3/4" 150# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 3/4

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 1.060

Outer Diameter (In.) 3.880

Ships Within 1-2 Days

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Starting at: $2.38
PRICE QTY
$17.95
3/4" 150# 1/8" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 3/4

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/8

Inner Diameter (In.) 1.060

Outer Diameter (In.) 3.880

Ships Within 1-2 Days

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Starting at: $4.34
PRICE QTY
$19.70
3/4" 300# 1/8" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 3/4

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/8

Inner Diameter (In.) 1.060

Outer Diameter (In.) 4.620

Ships Within 1-2 Days

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Starting at: $6.06
PRICE QTY
$24.55
3/4" 300# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 3/4

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 1.060

Outer Diameter (In.) 4.620

Ships Within 1-2 Days

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Starting at: $3.05
PRICE QTY
$21.05
3/4" 300# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 3/4

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 1.060

Outer Diameter (In.) 4.620

Ships Within 1-2 Days

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Starting at: $2.29
PRICE QTY
$17.54
1" 150# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 1.310

Outer Diameter (In.) 4.250

Ships Within 1-2 Days

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Starting at: $2.06
PRICE QTY
$16.46
1" 150# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 1.310

Outer Diameter (In.) 4.250

Ships Within 1-2 Days

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Starting at: $2.70
PRICE QTY
$19.44
1" 150# 1/8" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/8

Inner Diameter (In.) 1.310

Outer Diameter (In.) 4.250

Ships Within 1-2 Days

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Starting at: $5.34
PRICE QTY
$22.03
1" 300# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 1.310

Outer Diameter (In.) 4.880

Ships Within 1-2 Days

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Starting at: $2.47
PRICE QTY
$18.37
1" 300# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 1.310

Outer Diameter (In.) 4.880

Ships Within 1-2 Days

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Starting at: $3.31
PRICE QTY
$22.27
1" 300# 1/8" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1

Pressure Rating (lbs) 300

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/8

Inner Diameter (In.) 1.310

Outer Diameter (In.) 4.880

Ships Within 1-2 Days

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Starting at: $6.61
PRICE QTY
$26.45
1.25" 150# 1/32" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1-1/4

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/32

Inner Diameter (In.) 1.660

Outer Diameter (In.) 4.630

Ships Within 1-2 Days

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Starting at: $2.31
PRICE QTY
$16.16
1.25" 150# 1/16" Thk Graph-Lock 3123 ASME B16.5 Full Face Gasket

Nominal Pipe Size 1-1/4

Pressure Rating (lbs) 150

Flange Standard (ASME) ASME B16.5

Thickness (In.) 1/16

Inner Diameter (In.) 1.660

Outer Diameter (In.) 4.630

Ships Within 1-2 Days

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Starting at: $3.23
PRICE QTY
$18.80