Usun Model: GBT30 60 Double Stage Pneumatic Gas Pressure Test Pump for Leakage Testing

Usun Model: GBT30 60 Double Stage Pneumatic Gas Pressure Test Pump for Leakage Testing

 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  


Usun Model: GBT30 60 Double Stage Pneumatic Gas Pressure Test Pump for Leakage Testing