Dong Guan Usun Fluid Control Equipment Co., Ltd.  

Product Name: Good Quality Usun Model: Gbt15/40-Ol 200-300 Bar Double Stage Oxygen Gas Transfe Boosterr Pump for Cylinder Refilling Model NO.: Model: GBT15/40-OL Certification: CE Position of Pump Shaft: Horizontal Type: Handheld Pressure Medium: Gas Max.Capacity: 100-200 L/min Max.Head: None Material: Stainless Steel Driving Air Pressure: Compressed Air of 3-8 Bar Pump Type: Piston Pump Driven Cylinder: 160mm Application: Can Be Used for Refilling Gas Cylinder Air Driven Port: G1/2'' Action Type: Double Stage ,Single Action Lubrication: Yes Product Name: Oxygen Gas Transfer Pump Net Weight: 25 Kgs Trademark: USUN Transport Package: Carton Box Packing Specification: 70x40x30 Origin: China HS Code: 8412310090 Product Description USUN Model :GBT 15/40-OL 160MM driven double stage oxygen gas transfer pump for refilling gas cylinderUsunair driven gas boosterpumpsare ratio devices that utilize low pressure compressedairdriving a larger diameter piston (area x pressure) which is linearly connected to a smallerhydraulicpiston/plunger. Using this ratio principal, a higher hydraulic pressure can be generated.UsunPump model numbers reflect the pumps nominal pressure ratio, while the technical dataindicates exact ratios. The outlet stall pressure is easy to set by adjusting the air drive pressurethrough a simple air pressure regulator. By multiplying the pressure ratio by the available shopairpressure, the nominal gas pressure can be calculated.Example ( Pump Model:GBT15/40Gas boosterpump)Air drive piston area (160mm Ø)Hydraulic plunger area ( 25mm Ø)Actual ratio = 40:11. AIR DRIVE SECTIonThe air drive section consists of a light weight piston complete with seals running inside analuminumbarrel. The diameter of the air piston is160mm. When compressed air is supplied tothe pump the airpushes the air piston down on a compression stroke(forces as out of the gas end).Under thecontrol of pilot pins (poppet valve) triggered at each end of the stroke2. GAS DRIVEN SECTIONThegassectionofaUSUNairdrivengasboosterconsisitof4mainpieces ,thegasbarrel ,thepistonthecheckvalves andthemainhighpressureseals .Thegaspistonisdirectlylinkedtotheairpistonanditishousedinsidethegasbarrelanditsmovementsupanddowncreatesthegasflowintoandoutoftheboosterthroughthecheckvalves.Thecheckvalvesarepsringloadedandonthesuctionstroke.the inlet check valveopens to the maximum allowing gas into the gas barrel and on the compression strokethe inlet check valve closes the discharge check valve opens forcing the pumped gasinto the process .Themainhighpressuresealsislocatedonthegaspistonandtheysealagaistthegasbarrelduringoperation. and the maximum pressures of the pump ,however thestandard PTFE seals are suitable for both the vast majority of gases encountered.Othermaterialsofconstruction canbesuppliedtomeetmoreaggresiveservices .Thestandard serialsofboosterarenotsuitableforundergroundcoalmineapplications .USUNDOManufacturemodelsof air driven gas boosters that arenotsuitable for undergroundcoal mine applications .USUN Air driven gas boosters cycle automatically as the outlet pressure increass theresistance alsoincreasesandthecycleratedecreasesuntilthepumpstopsautomaticallywhentheoutputpressureforcesareequal.Thisisreferedtoasthestallcondition .Thepumpwillrestartwithaslightdropintheoutlletpressureoranincreaseinthe airdrivenpressureBoosterperformancecanbeaffectedbyanumberofconditions,suchasfreezingoftheexhaustmuffler orpilotvalves(Whichiscausedbymoistureinairlines ),inadequate inletairlinesizesanddirtyfilers.When operatingtheboostersonacontunuousbasis ,werecommendyouuseamaximumcyclerateof50-60cyclesperminute.Thiswillboth increaseserviceintervals andassistinpreventingiceformingattheexhaust .Anairsupplydryerwillalsoassistinreducingicingup .USUNGasboostershavea120mmstrokethusreducingcycleratesatanygivenflowandpressureascomparedwithmostotherbrands .Thislowerrepsectivecyclerateresultsinareductioninfreeze-up condition .Toabtainbestoverallperformance ,donotreducetheindicatedportsizeandconsultUSUNforflowconditionsnotshownincharts Model selection for gas booster Itisveryimportanttorememberthattheperformanceofanyairdrivendeviceisverydependentontheairsupplyconditions.Restrictionsintheairsupplycanbecausedbyusingatoosmallaircompressororairlines .TheFLOWCHARTSSHOWNinthetechnicaldatasheetarebasedongoodconditions .sopleasedonot"design totheline" allowforlossesandinefficiencies The next question is wheather you want the booster to stall when an outlet pressure is reachedIf so ,a simple airline pressure regulator will suffice ,but remember the flow drops off dramatically as thebooster reaches a stall condition .Ifyourequireflowataparticularpressure,thenyouneedreadtheflowcahrtscarefullyandconservatively Ifyouneedthepumptostopatacertainpressure,priortostall,thenanairpilorswitchesneedstobeinstalled .Key featuresRealiable ,Easy to Maintain ,compact and robust2. No heat,flame or spark risk3. Infinitely variable cycling speed and output4. Air driven Models do not require electrical connection ,easy to apply automatic controls5. No limit or adverse affect to contineous stop/start applications6.Seals system designed for long working life,No airline lubricated required7.Built-in coupling system (Most models) and suitable for most gases boostingMain technical data Typical technical data for double stage air driven gas booster pump ModelPiston rod diameterPressure ratioMinimum inlet pressure PI(Bar)Maximum inlet pressure PI (PO )Maximum Outlet pressure PO(Bar)Outlet pressure formula POInlet port sizeOutlet porst size MaximumFlow rate L/min= 7 BarGBT7/1563/4015:13.41512415PA+2PINPT3/8''NPT3/8''215@PI=7GBT7/3063/2832:13.41520432PA+3PINPT3/8''NPT1/4''118@PI=7GBT15/3040/2832:174020432PA+2PINPT3/8''NPT1/4''150@PI=10GBT15/40-OL40/2540:174533040PA+ 2PINPT3/8''NPT1/4''125@PI=10GBT15/6040/2060:174549860PA+4PINPT3/8'NPT1/4''92@pi=10GBT30/6028/2060:1304549860PA+2PINPT3/8''NPT1/4''245@PI= 40GBT30/10028/16100:13070830100PA+ 3PINPT1/4''NPT1/4''192 @pi=40Remark 1) Maxium outlet pressure are at an air driven pressure of 8 bar or 116 PSI ,for long life usingof such pump ,we suggest that air driven pressure should be not more than 8 Bar .Typical application of such double stage air driven gas booster pump Factory pictures