Pump Room Flashcards
What would indicate bad mechanical seals on the stripping pump?
- Black grease coming from the tell-tale hole.
2. Fuel coming front he tell-tale hole.
What are the positions of the inlet and discharge valves on the purifier when it is put in stand-by?
Inlet closed / discharge open
What is the type and capacity of TR purifiers?
De-level , centrifugal , 300 GPM , 4100 RPM
What is the capacity and type of oil used in the purifier ?
8-8 1/2 quarts of go 80-90
What is the ideal inlet/discharge pressure on a 300 GPM purifier ?
15 +/- 5 psi inlet
25 +/- 5 psi discharge
What is the type and capacity of transfer pumps on GW?
Blackmer, rotary vane, 300 GPM, 50 psi
The paring disc acts as what inside the purifier ?
Centripetal pump
What is the cause of water being discharged through the 1 1/2” drain line upon initial start up?
Faulty bowl shell O ring
When are the motor stripping pumps used on a service tank ?
Remove wash water / offload
Who must be contacted prior to stripping anything over the side ?
EOOW in DCC
The reclaim filter is designed to remove ?
Water and sediment
What is the main purpose of the reclaim system ?
Maximize the use of fuel
Reclaim the contam tanks
Reclaim the stowage tanks
How often are the stowage tanks stripped ?
Weekly and prior to transfer
What test determines the size of the discharge ring ?
Specific gravity test
What is the sea chest used for?
Ballast and de ballast tanks
How many elements are in the reclaim filter?
29
What is the maximum allowable cake on the bowl wall?
30 lbs. or 1 1/2”
Transfer pumps relieve at what pressure?
62 psi
You can not use all the transfer pumps at once ?
True
How many operations can you perform using the drain and food manifold at one time?
1
What is the maximum filling rate from stowage to stowage ?
500 GPM
Transfer pump specs
300 GPM at 50 psi
Stripping pump specs
50GPM @ 50 psi
Auxiliary pump specs ?
50 GPM @ 100 psi
Service pump specs?
1100 GPM @ 150psi
Hand stripping pump specs
30 GPM at 15psi
Service filter specs?
2000GPM at 150psi
What fire fighting equipment is used in pump room?
Portable CO2 Portable PKP AFFF Halon Bilge sprinklers
If a JP5 purifier is up to speed, how many bumps on the rotating cap?
146-152 bumps
You are allowed to align 2 transfer pumps to one transfer filter?
False
How many gallons are recirculated back to the service tank from the service pump?
55 gallons
What supports all the rotating elements of the service pump?
The shaft
What are the 3 major components of the reclaim filter ?
Transfer pump
Prefilter
Filter separator
What damage control classifications is assigned to most valves in the JP5 system?
Circle X-ray
What is one major difference between service and stowage tanks?
Service tanks have separate suction and fill pipes .
Why do the holes in the recirculation line face up?
So it will not agitate bottom of tank
You can not motor strip contamination tanks into sump?
True
If a service pump has insufficient pressure , what can be wrong?
Worn out wearing rings
Obstruction in discharge piping
Recirculation line is closed
What provides drive to the spindle and what is the method of lubrication?
Worm wheel gear/ sloshing
The T-handle is connected to what?
Feed tube assembly
What is the last step when shutting down the purifier ?
Close the discharge valve
All JP5 fueling procedures should be accomplished IAW what?
AFOSS
How many transfer pumps are required for each transfer filter to be placed in operations?
1
How is the service pump impeller held in place on the shaft?
Keyed
Where is the coupling seat located on the purifier?
On top of the discharge ring
The top disc covers the intermediate discs and forms a pump casing for what component of the purifier ?
The pairing disk
The red line on the purifier sight glass indicates proper oil level when the purifier is not in use?
False
On the JP5 service pumps a minimum of what psi is reached before opening pump discharge valve ?
100psi
What acts as a dam to to maintain proper line of separation in the purifier bowl?
Discharge ring
The four types of valves used in the JP5 system are globe,gate,butterfly, and one-way check valve?
True
The reclamation system is used JP5 from contaminated settling tanks to ?
Minimize water
The recirculation cross connects on the service pumps are normally closed when offloading ?
True
The aux pump takes suction from the JP5 service pump suction header and recirculates back to the contam tanks?
False
How many transfer pumps maybe be used to consolidate fuel based on a 500GPM filling rate?
2
When in use , the aux pump recircs back to the contam tanks ?
False
The service pump has how many chambers and what are they?
2 suction and 1 discharge
How can you tell which manifolds are for double bottom and/or wing tanks ?
Wing tank manifolds have the root valve before each tank top
On the flood and drain manifold, how many operations can be performed at one time and what ensures this?
1: sliding lock bar
In what direction do you turn the T handle to engage the paring disk ?
Counter clock wise
What directs fuel to the tubule shaft of the purifier ?
Disk stack
On the rotary vane pump what prevents leakage along the shaft and into the bearing housing?
Mechanical seal
How far off the bottom of a storage tank is the motor stripping tail pipe located?
1 1/2”
What is at the bottom of the fill and suction line to prevent a vortex?
Non - vortex , bell mouth fitting
The hand operating stripping system tailpipe is how far off the service tank bottom
3/4”
The stripping pump inlet piping contains a ?
40 mesh basket strainer
The auxiliary system provides fuel to what locations ?
EDG, tractor filling. Incinerator . Auxiliary boilers
Operation for purifying ?
- Pre-check/start/up to speed
- start transfer pump , open discharge
- open purifier inlet
- Close/throttle transfer recirc valve
- Throttle the purifier outlet valve
What is the delivery pressure of the aux pump to the hangar bay?
60 psi
The reclamation system is designed to remove how much sediment and water ?
98% of sediments 5 microns or larger
99.9% of water
When reclaiming using the transfer pumps , the following valves must be opened?
Transfer pump recirculation
Where are the valves for 8-9-0-J located ?
17 trunk
When it’s required to switch service tanks , what must be done prior to opening the next tank?
Take a visual sample
What component or operation doesn’t apply to the JP5 service pump?
Positive displacement
If the JP5 service pump fails to reach 35 psi in 1 minute, what will happen?
It shuts down automatically
The inside diameters of the discharge rings range from ?
220-250MM
What is the difference between the stripping valves used in 2 pump and 3 pump ?
Nothing both manual
How often are samples taken from the purifier outlet valve?
Start -up and every 15 min. Thereafter
Also coming out of new stowage tank
What is used to remove sludge and water that settles at the bottom of the tanks during stowage ?
Stripping pumps
