3 The special lube fitting
on top of the valve is in the
valve pressure area so use
these precautions:
A Attach a grease gun with
out-put higher than line
pressure to the fitting.
B Back out the shut-off-
screw 2 to 3 turns ONLY.
C Pump in 1 to 2 lbs., 0.5 to
1 kg., of lithium base
grease, and if possible
cycle the valve to evenly
distribute the lubricant.
D Tighten the shut-off screw securely before removing the pump.
The stem lube point “A” use a standard hydraulic lube fitting.
Pump two or three times.
17
1 ORBIT Drilling Valves
are designed for holding
pressure in one direction
only. They must be installed
so that the greater amount
of pressure will be applied
to the preferred pressure
end. Damage to valve may
result if not installed
properly.
2 If pressure could drop
below 100 psi in the closed
position, USE THE STEM
LOCKING DEVICE to prevent
the valve from opening. To
use the Stem Locking
Device, tighten the lock
screw in the packing gland,
which forces a brass friction
plug against the valve stem.
4 The conventional
type Packing Gland
Assembly uses braided
packing rings and gland
studs with nuts. Adjustment
is identical to O.S.&Y. valves
shown on page 16,
steps 11 to 15.
DRILLING VALVES
RECOMMENDED REPLACEMENT FOR DISCONTINUED PACKING
GP-6
General Service
Oxygen and
Related Service
Ammonia Service
High Temperature
Graphite Rings O.S.&Y. Model
316 S.S. Valve
Unleaded Gasoline
With MTBE*
GP-7
GP-19 GP-20
GP-26 GP-27
Obsolete Recommended
Packing Recommended Use Replacement
GP-5 General Service GP-6
GP-8 Hydrogen Fluoride Service GP-19
GP-9 Hydrogen Sulfide Service GP-6
GP-10 -50°F Service GP-6
GP-11 Hydril Valve Stem Packing GP-7
GP-12 Halogen Style GP-7
GP-14 Chlorine Service None
Obsolete Recommended
Packing Recommended Use Replacement
GP-15 HFU Service GP-19
GP-16 800°F Service GP-20
(Rings O.S.&Y. Model Only)
GP-17 -100°F Service None
GP-18 600°F Service None
(Injectable)
GP-22 600°F Service None
(Injectable)
*MTBE - Methyl Tertiary Buthyl Ether
B & D
A
P R O C E S S V A L V E S
INSTALLATION, OPERATION AND MAINTENANCE
STEM PACKING MATERIALS
CT-ORB-IOM/6
05/08 ION-3M
®
ORBIT
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