API610 Centrifugal High Pressure Diffuser Style Barrel Multistage Water Pump for Circle Hot Water

• After-sales Service: Online
• Warranty: 1 Year
• Max.Head: 4000m
• Max.Capacity: >400 L/min
• Driving Type: Motor
• Material: Stainless Steel
• Model NO.: GSG
• Structure: Double Layer Multistage Pump
• Assembly: Booster Pump
• Power: Electric
• Start Up: Electric Pump
• Type: Blade Pump
• Application: Clarified Water Pump
• Industry: Oil Pumps
• Media: Water
• Performance: Explosion-Proof Pumps
• Theory: Centrifugal Pump
• Materials: S6
• Size: 1.5-8 Inched
• Pressure: Upto 275bar
• Temperature: -30~+425
• Flow: Upto 850m3
• Transport Package: Wood Case
• Specification: 2300*2000*1800
• Trademark: BLOSSOM
• Origin: China
• HS Code: 84138100
• Production Capacity: 300set/Year

Product Description

 

Product Description

Overview:

The DSG is built to the latest edition ofISO13709(API610)It is a type BB5horizontal,radially split, diffuser type,multistage barrel pump. The rotorstack can be either inline (all theimpellers facing towards the driver) orBack-to-back.On the smaller pumps.the inboard seal chamber and bearinghousing must be removed for cartridgeremoval. On larger pumps, the entirecartridge can be removed as anassembly to speed overhaul or re-rateturnaround time.

The barrel is available as either acasting or forging with a variety offlange ratings to meet individualspecifications.It is normally centerlinesupported for thermal stability andmaximum nozzle load capacity. Thebarrel closure is either the traditionalflanged head-studs and nuts,flangedhead-SupernutsorpatentedTwistlock closure for speedy removaland assembly.


The inner cartridge consists of stackeddiffuser/impeller sets. A double suctionfirst stage impeller is available on allbut the smallest sizes. Axial thrust iscompensated by a balance drum forinline stacked rotors. The diffusershydraulically balance radial forces.Forthose services where intermediatepressure takeoff is needed,higher flowdiffuser/impeller sets can be utilized upto the takeoff stage,and then lowerflow sets are used after the takeoffstage to optimize efficiency andperformance.When design conditionschange, rerates are similarly achievedusing different diffuser/impellercombinations, or blank stages all in thesame barrel.

For applications on light gravity fluidswith many stages,a back-to-back rotorstack is utilized to allow direct drive atnormal motor speeds and provideimproved rotordynamics.In such rotorsthe opposed impellers cancel most of the axial thrust. The center bushingand throttle bushings take most of theresidual axial thrust, so the thrustbearing loads are minimal. The back-to-back design allows the use of a7300 series ball thrust bearing andsaves the substantial cost andmaintenance components associatedwith lube oil systems. For highpressure and high energy levels, inlineor back-to-back stack, high speedsemi-stiff rotor designs are available.

Depending upon pump size,powerand rotor design,the pumps can besupplied with ring oil or oil mistlubricated antifriction bearings,ring oillubricated sleeve radial ball thrustbearings,or pressure lubricated sleeveradial-tilting pad thrust bearings.

Materials: All common ISO13709(API 610)material combinations are available.

Application

Thousands of DSGpumps areinstalled around the world. They arefound in:
Power Plants
Refineries
Petrochemical Plants
Gas Processing Plants
Onshore and offshore water injectionservices
Onshore and offshore crude shippingservie
Onshore crude oil, refined productand LPG pipeline services
High pressure and high or lowtemperatures are DSG services.

Pump structure

Inline and Back-to-Back Design Features and Benefits:

Inline:
Fulfills the majority of requirements for BB5 pumps with.either cast or forged barrels to meet customerspecifications.
Multivane diffusers balance radial loads. Balancingdrum takes the majority of axial thrust load. Heavy dutybearings support the rotor and carry residual thrustloads.
Smaller size pumps fitted with ring oil lubricatedantifriction bearings. Oil mist lubrication optional.
All but smallest sizes may be fitted with pressurelubricated sleeve radial, double acting tilting pad thrustbearings,lube oil systems, bearing RTD's,X-Y vibrationprobes and Keyphasor, etc.
Maximum number of interchangeable stage piecesminimizes spares parts inventory.
In direct drive applications, clearly the best selection upto stage limits. If still more head is needed, firstconsider DSG back-to-back and direct drive. If thatdoes not meet head requirement, then consider DSGinline with higher speed-using gear box or VFD
For very high head and high energy levels beyondback-to-back direct drive capabilities,DSG with semistiff rotor design (like Sulzer's HPcp,HPT pumps) canbe offered.Could justify stand-alone,single unit--nostandbv.Discussion recommended.

Back to Back:
With up to 16 stages available, fulfills direct driveapplications that require more head than is availablefrom direct drive inline GSG
Multivane diffusers  balance radial loads. Opposeoimpellers balance majority of axial thrust. Centerbushing and throttle bushing take nearly all theresidual axial thrust. Even when clearances are worn.axial and radial loads remain balanced.
Fan cooled,ring oil lubricated, sleeve/ball thrustbearing without lube systems are common up to ISO13709 (API 610) Table 9 limits, or Sulzer limitsdepending upon application. Significantly reducesinstalled cost and provides simple, reliable pumps.
When even high speed GSG with semi-stiff inlinerotor does not meet head requirements, or cannotmeet rotordynamic requirements a GSG with semistiff backto- back rotor can be offered.

Rapid pump dismantling

To speed the repair of a GSG pump,larger sizes are designed using thatcartridge concept. The pump couplinghub,inboard bearing housing,sealchamber and hydraulic cartridge slidethrough the barrel for quick removal.Re-installation is just as fast. For evenfaster turnaround,the Sulzer patentedTwistlock design puts an end to hoursof torquing the barrel cover nuts.Forremote locations or offshore this can be especially time and cost saving.Small GSG pump barrel bore are sosmall that the coupling hub,sealchamber and bearing housing will notfit through. Those parts have to beremoved on those pumps before thecartridge is pulled.
Ntice: The assembled cartridge can be removed as one piece on larger pumps.

Performance range

Product Parameters

Pump size	1.5-8 inches
Capacity	up tp 850m^3
Heads	up to 4000m
Pressure	up to 275bar
Temperature	-30~+425

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