JET 02 Triplex Pump Flashcards
“1. The power end converts energy from
_________.”
rotational power to reciprocal power
- Is the volumetric efficiency of all triplex pumps the same value?
FALSE
“3. What important functions do chain cases
have? Select two that apply.”
“C. Provide flexibility in mounting.
D. Convert rpm to torque.”
- A triplex pump is a _________.
“C. high-pressure positive displacement
pump consisting of three plungers”
“5. The maximum fluid end pressure
limitations is based on _________.”
“A. metal used in the construction of the
fluid end”
“6. For coiled tubing operations, use a
_________ .”
“C. 6-in stroke OPI600 pump
D. PG/Butterworth pump”
“7. The correct level for oil in the power end is
_________.”
“B. ½ in below the bottom of the main
bearing’s caps.”
- The maximum flow rate of a triplex pump is calculated on _________.
C. 97% volumetric efficiency
- Low-pressure in the power end is caused by _________, _________ and _________.
“A. high discharge pressure
B. low engine rpm
D. worn components”
- Crosshead seals are used to _________ and _________.
“A. prevent leakage of oil from the power
end via the pony rods
B. keep oil in and dirt out of the power end”
“11. Reusing packing oil is recommended to
reuse packing oil”
FALSE
12.- The divider block _________. Of a triplex pump do?
divides equal oil to each plunger
“13. A block divider that is coded 24 has
_________.”
“B. two outlets: must discharge from both
ends”
“14. A discharge stroke occurs when the
plunger is drawn toward the power end”
. false
- One of the most damaging factors for a pump fluid end is _________.
. pump cavitation
“16. Cavitation can be the result of _________,
_________, or _________.”
“B. worn or damaged pressurizing pump not maintaining adequate pump suction manifold pressure
C. pumping too fast for the pressurizing pump to keep up
D. not keeping the fluid end chambers full of fluid”
“17. During a STEM 1 inspection if a triplex pump, it is essential
to_________, _________ and ________.”
“B. drain all water in cold weather after
washing the pump
C. check for oil leaks in the crosshead
seals
D. check the oil level in the chain cases,
power ends, and packing lubricant”
“18. Unusual noises in the power end could
indicate _________.”
"A. damaged bull or pinion gears B. worn or damaged main bearings C. crosshead, or connecting rod bushings D. damaged crankshaft E. cracked eccentric"
- Cavitation is more likely to occur when pumping oil than water.
TRUE
- Burst disk valves are designed to last at least 500,000 pressure cycles.
TRUE
- Using dull or scored plungers does not reduce packing life.
FALSE
“22. The shelf life of urethane inserts is
_________.”
. 1 year
- A 5-in stroke PG series pump is primarily used for _________.
Cementing/completion services
- A hydraulic horsepower test is performed to confirm the unit performance level and to reveal potential mechanical problems.
. true
“25. The power end can catch fire from
excessive heat.”
TRUE
- Excessive greasing of the suction and discharge cover and retainer threads can cause a grease or hydraulic lock.
TRUE
- The triplex pump annual inspection is performed by the _________.
mechanic
Reciprocating pumps are positive displacement. This means __________________.
there is no slippage in the pumping action.
Reciprocating pumps are used primarily ______________.
where high discharge pressures are required and flow is a precise function of pump speed.
Select the main components of a reciprocating pump.
“b. Fluid end
d. Power end
e. Gear box”
Which items are used to rate power ends? Select four:
“a. Stroke
b. Rod load
d. Input horsepower
e. Number of cylinders”
“Is the maximum pressure rating of a pump determined by dividing the rod
load by the plunger area?”
TRUE
Hydraulic horsepower is proportional to ___________________.
rate multiplied by pressure.
“The manufacturer’s maximum speed rating can always be used to determine the pump maximum rate for job design.”
FALSE
Assuming all other pumping parameters are equal, increasing discharge pressure reduces pump life more than an equal increase horsepower.
TRUE
The 600 Shorty pump is primarily used for __________________.
Cementing, Completion, and Coiled Tubing services
Which of the following pump models is ABS, DNV, and CE/PED certified?
GD1250
“GD2250T and SPM TWS2250 triplex pumps are typically used for fracturing services.”
TRUE
“An SPM QWS2500 fluid end cannot be installed in a GD2500Q power end for service or vice versa.”
FALSE
“For a pump with a 10,000 psi (68,900 kPa) maximum working pressure fluid end, what should the burst disc pressure rating be for the suction valve of the fluid end per Well Services QHSE Std 05: Wellsite Operations?”
15,000 psi (103,400 kPa)
What type of oil uses the engine, the cain case and the fluid end of a triplex pump in a CPS
SAE 40
What type of oil the power end of a triplex pump uses?
85w140
What type of oil the transmission of a CPS uses?
ATF30
Name the characteristics of a triplex pump whit plungers of 2.5 in
20,000 psi
2.58 bpm
Fluid end TSO
Name the characteristics of a triplex pump whit plungers of 3 in
15,000 psi
3.71 bpm
Fluid end TRO
White 22,500 psi
Name the characteristics of a triplex pump whit plungers of 3 3/4 in
10,000 psi
5.79 bpm
Fluid end TGO
Green 15,000 psi
Name the characteristics of a triplex pump whit plungers of 4.5 in
7,000 psi
8.34 bpm
Fluid End TLO
Red 10,000 psi
Name the characteristics of a triplex pump whit plungers of 5 in
5,500 psi
10.3 bpm
Fluid End THO
Red 10,000 psi
Name the types of inserts of the valves of the fluid end.
Rubber (black) Cementing and acidification. low resistance to abrasive materials. Urethane (Yellow) Sand fracturing low resistance to acids. Welded Urethane (yellow) HP fracturing
Types of springs of each valve of the fluid end of a triplex pump (discharge valve and suction valve)
Discharge valve.- rect spring
Suction valve.- conic spring
