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C-19
HOCHDRUCK
®
3124 / 3126
3123/3125
3125 SS
3125 TC
3128
Description
316SS Wire
Homogeneous/
0.002" 316SS
0.004" 316SS
Reinforced
Inserted
Laminated
Foil Inserted
Tang Inserted
Graphite
Temperature
1
, Minimum
-400°F (-240°C)
-400°F (-240°C)
-400°F (-240°C)
-400°F (-240°C)
-400°F (-240°C)
Max. in atmosphere
+850°F (+454°C)
+850°F (+454°C) +850°F (+454°C) +850°F (+454°C) +850°F (+454°C)
Max. in steam
+1200°F (+650°C) +1200°F (+650°C) +1200°F (+650°C) +1200°F (+650°C) +1200°F (+650°C)
Continuous in reducing
—
+5,432°F
—
—
or inert media
(+3,000°C)
Pressure, max.
1
psig (bar)
2,000 (140)
2,000 (140)
2,000 (140)
2,000 (140)
2,000 (140)
P x T, max
.
1
(psig x °F):
1/32", 1/16"
700,000
700,000
700,000
700,000
700,000
(bar x °C):
(0.8mm, 1.6mm)
(25,000)
(25,000)
(25,000)
(25,000)
(25,000)
1/8" (3.2 mm)
350,000 (12,000)
350,000 (12,000) 350,000 (12,000) 350,000 (12,000) 350,000 (12,000)
Sealability
(ASTM F37B)
2
ASTM Fuel A
ml/hr
1.5
3
0.2/0.3
0.25
0.3
3
0.2
Nitrogen
ml/hr
0.2
0.5
0.2
0.3
0.1
Gas Permeability
cc/min.
0.1
0.4
0.4
0.4
0.4
(DIN 3535 Part 4)
4
Creep Relaxation
%
17
5/10
12
15
10
(ASTM F38)
Compressibility
%
40
40
35
35
30-40
(ASTM F36)
Recovery
(ASTM F36) %
>12
>15
>20
>20
20
Tensile Strength
psi
3,300
600
4,500
3,500
4,500
(ASTM F152) (N/mm
2
)
(23)
(4)
(31)
(24)
(31)
Notes:
1
Based on ANSI RF flanges at our preferred torque. Maximum temper-
ature 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/mm
2
),
Internal pressure = 9.8 psig (0.7 bar)
Nitrogen: Gasket load = 3,000 psi (20.7 N/mm
2
),
Internal pressure = 30 psig (2 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.
All styles furnished with an anti-stick parting agent as standard.
* Values do not constitute specification limits
GRAPH-LOCK
®
Typical Physical Properties*
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/mm
2
),
Internal pressure = 580 psig (40 bar)
Easy to Cut
Easy to Install
After mating the matching dovetail sections together,
wrap a length of either Garlock Smooth Finished or
Garlock Diamond Textured Graphite tape (0.010" thick)
around dovetail area. Width of graphite tape must be
at least 1/2" greater than dovetail area. Wrap tape one
full revolution around gasket in dovetail area. Be sure
Dovetail Installation Instructions
Easy to Seal
Graphite Blocking
Agent Throughout
316L Stainless
Steel Inserts
HOCHDRUCK
®
Installation
to overlap tape by approximately 1/2" and cut tape. DO
NOT attempt to open or move tape at this point - it will
damage the tape. With a smooth piece of metal that is
greater in area than the dovetail area, softly tap with a
hammer and blend the tape into the gasket. Place flang-
es together and follow normal installation procedures.