CZPT Design :GBT30/60 double stage pneumatic gasoline force take a look at pump for leakage testing
CZPT air driven fuel booster pumps are ratio devices that utilize minimal pressure compressed
air driving a greater diameter piston (spot x strain) which is linearly connected to a scaled-down
hydraulic piston/plunger. Using this ratio principal, a increased hydraulic force can be produced.
CZPT Pump design quantities reflect the pumps nominal pressure ratio, whilst the technical data
signifies specific ratios. The outlet stall stress is easy to established by modifying the air push pressure
by way of a easy air pressure regulator. By multiplying the stress ratio by the obtainable store
air pressure, the nominal gas stress can be calculated.
Illustration ( Pump Design: GBT15/40 Gas booster pump)
Air drive piston spot ( 160mm Ø)
CZPT plunger area ( twenty fivemm Ø)
Actual ratio = forty:1
one. AIR Travel Section
The air drive section consists of a gentle excess weight piston total with seals operating inside of an
aluminum barrel. The diameter of the air piston is 160mm. When compressed air is provided to
the pump the air pushes the air piston down on a compression stroke
(forces as out of the gasoline conclude).
Under the control of pilot pins (poppet valve) triggered at each stop of the stroke
two. GAS Driven Segment
The gas section of a CZPT air driven gas booster consisit of 4 main pieces
,the gas barrel ,the piston the check valves and the main high pressure seals .
The gaspiston is directly linked to the air piston and it is housedinside the gas barrel
and its movements up and down creates the gas flow into and out of the booster through
the check valves . The check valves are psring loaded and on the suction stroke .the inlet verify valve
opens to the greatest allowing fuel into the fuel barrel and on the compression stroke
the inlet verify valve closes the discharge verify valve opens forcing the pumped gas
into the procedure .The main high pressure seals is located on the gas piston and they seal agaist
the gas barrel during operation . and the optimum pressures of the pump ,nevertheless the
CZPT PTFE seals are ideal for each the extensive majority of gases encountered .
Other materials of construction can be supplied to meet more aggresive services
.The CZPT serials of booster are not suitable for underground coal mine applications .
CZPT DO CZPT models of air pushed gas boosters that are not suitable for underground
coal mine applications .
CZPT Air pushed gasoline boosters cycle routinely as the outlet force increass the
resistance also increases and the cycle rate decreases until the pump stops automatically
when the out put pressure forces are equal .This is refered to as the stall condition .
The pump will restart with a slight drop in the outllet pressure or an increase in the air driven pressure
Booster performance can be affected by a number of conditions ,
such as freezing of the exhaust muffler or pilot valves ( Which is caused by moisture in
air lines ),inadequate inlet air line sizes and dirty filers .When operating the boosters
on a contunuous basis ,we recommend you use a maximum cycle rate of 50-60 cycles per minute .
This will both increase service intervals and assist in preventing ice forming at the exhaust .
An air supply dryer will also assist in reducing icing up .
CZPT Gas boosters have a 120mm stroke thus reducing cycle rates at any given flow
and pressure as compared with most other brands . This lower repsective cycle rate res
ults in a reduction in freeze-up condition .
To abtain best overall performance ,do not reduce the indicated port size and consult
CZPT for flow conditions not shown in charts
Design variety for gas booster
It is very important to remember that the performance of any air driven device is very dependent
on the air supply conditions .Restrictions in the air supply can be caused by using a too small air compressor or
airlines .The FLOW CHARTS SHOWN in the technical data sheet are based on good conditions .
so please do not “design to the line ” allow for losses and inefficiencies
The subsequent concern is wheather you want the booster to stall when an outlet strain is reached
If so ,a simple airline force regulator will suffice ,but don’t forget the flow drops off significantly as the
booster reaches a stall condition .
If you require flow at a particular pressure ,then you need read the flow cahrts carefully and conservatively
If you need the pump to stop at a certain pressure ,prior to stall ,then an air pilor switches needs to be installed .
Crucial functions
Realiable ,Effortless to Sustain ,compact and sturdy
two. No heat,flame or spark threat
3. Infinitely variable cycling velocity and output
four. Air driven Designs do not require electrical link ,effortless to use automatic controls
5. No restrict or adverse impact to contineous end/begin applications
six.Seals method designed for lengthy doing work life,No airline lubricated required
seven.Developed-in coupling program (Most models) and ideal for most gases boosting
Primary specialized info
Common complex data for double phase air pushed gas booster pump
| Design | Piston rod diameter | Stress ratio | Minimal inlet pressure PI(Bar) | Maximum inlet pressure PI (PO ) | Greatest Outlet strain PO(Bar) | Outlet strain system PO | Inlet port size | Outlet porst measurement | Maximum Flow rate L/min= 7 Bar |
| GBT7/15 | 63/40 | 15:1 | 3.four | 15 | 124 | 15PA+2PI | NPT3/8” | NPT3/8” | 215@PI=7 |
| GBT7/thirty | 63/28 | 32:1 | three.four | fifteen | 204 | 32PA+3PI | NPT3/8” | NPT1/4” | 118@PI=seven |
| GBT15/30 | 40/28 | 32:one | seven | 40 | 204 | 32PA+2PI | NPT3/8” | NPT1/4” | 150@PI=10 |
| GBT15/forty-OL | 40/twenty five | forty:one | seven | 45 | 330 | 40PA+ 2PI | NPT3/8” | NPT1/4” | one hundred twenty five@PI=ten |
| GBT15/60 | 40/20 | 60:one | seven | 45 | 498 | 60PA+4PI | NPT3/8′ | NPT1/4” | ninety two@pi=ten |
| GBT30/sixty | 28/twenty | 60:1 | 30 | 45 | 498 | 60PA+2PI | NPT3/8” | NPT1/4” | 245@PI= 40 |
| GBT30/a hundred | 28/sixteen | a hundred:one | thirty | 70 | 830 | 100PA+ 3PI | NPT1/4” | NPT1/4” | 192 @pi=forty |
Remark 1) Maxium outlet pressure are at an air driven force of eight bar or 116 PSI ,for extended life making use of
of these kinds of pump ,we propose that air driven force must be not much more than eight Bar .
Typical software of these kinds of double stage air driven gas booster pump
Manufacturing facility pictures
