Heavy Duty Balanced Opposed Compressors - Ariel Corporation

For Models: JGH:E:K:T Section 4 Part Replacement
“BTUU” Single Acting Seal Set
This four-ring set seals in one direction only. The
first ring (pressure side) is radially cut; the second
is tangentially step cut. These rings are
doweled to stagger the cuts from one ring to the
other. The third and forth rings are solid and
have bores larger than the rod diameter, allowing
the radial joints of the sealing rings to form a
tight gas seal. Total end gap installed is 3/8 to
13/32 in. (9.5 to 10.3 mm) for PEEK, and 3/16 to
7/32 in. (4.8 to 5.6 mm) for Teflon. Maintain end
gap by adjusting ring gap or replacing the ring.
“CU” Single Acting Seal Set
This three-ring set seals in one direction only.
The first ring (pressure side) is radially cut. The
second ring is tangentially cut. The first two rings
are doweled to stagger the cuts from one ring to
the other. The third ring is called a back-up ring. It
is solid and has a bore larger than the rod diameter.
Total end gap installed is 3/8 to 13/32 in. (9.5
to 10.3 mm) for PEEK, Bronze, and Cast Iron,
and 3/16 to 7/32 in. (4.8 to 5.6 mm) for Teflon.
Maintain end gap by adjusting ring gap or replacing
the ring.
“STU” Single Acting Seal Set
This three-ring set seals in one direction only.
The first ring (pressure side) is solid, with radial
groves on the pressure side. The second ring is
tangentially cut. The third ring is solid.
“CR” Single Acting Seal Set
This three-ring set seals in one direction only.
The first ring (pressure side) is radially cut. The
second ring is tangentially cut. The first two rings
are doweled to stagger the cuts from one ring to
the other. The third ring is called a back-up ring. It
is radially cut and has a bore larger than the rod
diameter to allow the radial joints to form a tight
gas seal. Total end gap installed is 3/8 to 13/32
in. (9.5 to 10.3 mm) for PEEK, Bronze and Cast
Iron, and 3/16 to 7/32 in. (4.8 to 5.6 mm) for Teflon.
Maintain end gap by adjusting ring gap or
replacing the ring.
3/11 PAGE 4-21
B
K
B B
K
K
Pressure
FIGURE 4-23 “BTUU” Single Acting Seal Set
B
B
K
B B
FIGURE 4-24 “CU” Single Acting Seal Set
K
K
K
K
K
Pressure
Pressure
FIGURE 4-25 “STU” Single Acting Seal Set
K
A
B B
FIGURE 4-26 “CR” Single Acting Seal Set
K
K
A A
Pressure