Rupture Disks - GE H301 Series Operating Manual

80 | Chapter 6: Lubrication
When operating at the maximum rated speed, the typical oil flow rate for
reciprocating compressor cylinders is 0.30 pints (0.14 liter) per day (PPD) for each
inch (25.4 mm) of cylinder diameter. The oil flow rate for pressure packing is 0.6
pints (0.28 liter) per day (PPD) for each inch (25.4 mm) of piston rod diameter. These
are approximate oil flow rates.
For CNG and other high discharge applications, where
discharge pressures exceed 1200 Psig (83 bar), cylinder and
packing oil flow rates are approximately twice standard rates.
Lubricator cycle time and oil feed rates
The following formula expresses the relationship between lubricator cycle time
and oil flow rates:
Required Indicator Pin Cycle Rate (Seconds/Cycle) =
Pin Cycle Rate (Seconds) =
DO NOT PLACE HAND OR FINGERS INTO THE CYLINDER
THROUGH A VALVE PORT UNLESS THERE IS SUITABLE BLOCK
BETWEEN THE PISTON AND CYLINDER HEAD. THIS WILL
PREVENT THE CRANKSHAFT TURNING AND SUBSEQUENT
After setting the lubricator flow rate, check the cylinders walls and piston rod
packing for proper oil film at approximately two-day intervals during the first week
and every six months thereafter. See the
"Semi-annual maintenance checklist".
Low temperature situations may require heating the oil and insulating or heating
the lines.

Rupture Disks

Cylinder Lubricator System - Over Pressure Protection System Function
If a blockage occurs in the divider blocks, lube lines, check valves or injection
points, the lubricator pump increases pressure to attempt overcome the blockage.
Excessive system pressure is limited by the use of an over pressure protection
device (rupture disk), located between the pump discharge and the distribution
blocks. When the oil pressure exceeds the rating of the rupture disk, a charge of
lubricating oil is released. When oil flow stops, the lubrication "no flow" switch
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
Total of Divider Valve Size x 6
Total Oil Flow Rate (Pints per Day)
Total of Divider Valve Size x 6
Oil Flow Rate (PPD)
P I N C H P O I N T
POSSIBLE INJURY.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
"Daily maintenance checklist" and the