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    Sunny@u-sun.cn

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Customized Item USUN Model:ZB05-SS full stainless steel end air driven refrigerant booster pump f...

Model
Nature of the Manufacturer
Other
Product Category
refrigerant pump
Place of Origin
City, Province
Overview
Customized Item USUN Model:ZB05-SS full stainless steel end air driven refrigerant booster pump for closed loop extraction machine
Product Details

 

Usun Model :ZB05-SS  160 MM driven stainless steel air  driven liquified gas or refrigerant pumps

for recovery refrigerants ,especially used for closed loop extraction machine 


ZB series of liquid pumps are unique in the USUN range as they use pistons rather than plungers in the liquid ends.

 

This enables them to achieve high pressure fluid outlet flows in both directions of the reciprocating pump action, 


making them double acting and very efficient. All ZB Series pumps are suitable for liquids, gases and vapours. 


They are also capable of drawing a vacuum down to 11.25 psi(absolute) in the 2-stage configuration.


General Information for Air driven hydraulic pumps



USUN air driven liquid  pumps are ratio devices that utilize low pressure compressed

 

air driving a larger diameter piston (area x pressure) which is linearly connected to a smaller

 

hydraulic piston/plunger. Using this ratio principal, a higher hydraulic pressure can be generated.

 

Usun Pump model numbers reflect the pumps nominal pressure ratio, while the technical data 

 

indicates exact ratios.  The outlet stall pressure is easy to set by adjusting the air drive pressure

 

through a simple air pressure regulator. 


By multiplying the pressure ratio by the available shop


air pressure, the nominal liquid pressure can be calculated.


Exmple ( Pump Model:ZB05 liquid pump)


Air drive piston area ( 160mm Ø)


Hydraulic plunger area(  80 mm Ø)


Actual ratio =4:1

 

1.  AIR DRIVE SECTION

 

The air drive section consists of a light weight piston complete with seals running inside an

 

aluminum barrel. The diameter of the air piston is 80mm. When compressed air is supplied to

 

the pump the air pushes the air piston down on a compression stroke

 

( forces fluid out of the liquid end).

 

 Under the control of pilot pins (poppet valve) triggered at each end of the stroke

 

2. HYDRAULIC SECTION (Wetted End)

 

The hydraulic section of an air driven liquid pump consists of 4 main pieces, the hydraulic body,

 

the piston/plunger, the check valves and the main high pressure seal. The hydraulic

 

piston/plunger is  directly linked to the air piston and it is housed inside the hydraulic body and

 

its movement up and down creates the liquid flow into and out of the pump through the check

 

valves. The check valves are spring loaded and on the suction stroke the inlet check valve


 opens to the maximum allowing fluid into the hydraulic body and on the compression stroke the

 

inlet check valve closes and the discharge check valve opens forcing the pumped fluid into the

 

process.


The main high pressure seal is located within the hydraulic body and the piston/plunger seals

 

against this during operation. There are different materials and designs of high pressure seals

 

depending on the fluid being pumped and the maximum pressures of the pump, however the

 

standard seals are suitable for both water and hydraulic fluid use.

 

USUN air driven liquid pumps are self-priming, However, high ratio pumps are more difficult to

 

Prime and may require bleeding. In general, it is not recommended to use an air- line lubricator.

 

USUN  air driven liquid pumps cycle automatically  as the outlet pressure increases the

 

resistance  also increases and the cycle rate decreases until the pump stops automatically

 

when the output  pressure forces are equal. This is referred to as the stall condition.

 

The pump will restart with a slight drop in the outlet pressure or an increase in the air drive

 

pressure. Pump 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 pumps on a continuous 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.

 

To obtain best overall performance, it is recommended not to reduce the indicated port sizes

 

and consult We for flow conditions not shown in charts.

 

Typical applications for air driven Liquified gas or refrigerant pumps  


Key features


1)  Stainless steel wet end materials of construction

2) Specialised construction materials available

3) PTFE pressure seals as standard

4) UHMWPE, Polyurethane & other special seals available

5) Separation & drainage between hydraulic & pneumatic seals

6) No airline lubrication required

7) 80mm stroke reduces cycle rate & increases life

8) Suitable for most hazardous areas


Main technical data  


Model

Pressure ratio

Maximum Outlet pressure PO(Bar)

Outlet pressure formula PO

Air driven port size

Inlet port size

Outlet porst size

Maximum Flow rate g/s

ZB05(D)

4:1

33.2

4PA

G1/2''

NPT1/2 ''

 NPT1/2''

400

ZB07(D)

7:1

56

7PA

G1/2''

NPT3/8''

NPT3/8''

280

4ZB06

6:1

48

6PA+PI

G1/2''

PT3/4''

PT3/4''

1600

ZB10

10:1

83

10PA

G1/2''

NPT3/8''

NPT3/8''

160

4ZB10

10:1

83

10PA+PI

G1/2''

PT3/4''

PT3/4''

900

 

Remark 1) Maxium outlet pressure are at an air driven pressure of 8 bar or 116 PSI ,for long life using


of such pump ,we suggest that air driven pressure should be not more than 8 Bar  .


Typical Applications for such pneumatic driven liquified gas or Refrigerant pumps  


Transfer, at pressure, of water, LPG, SF6, Freons and other refrigerant fluids.


CO2 Fire Extinguisher filling.


Hydro-static Pressure testing.


Critical Extraction.


The transfer and/or extraction of LPG, LNG Freon and

 

Refrigeration Fluids. Dust suppression.


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