OH2-JHEIJHFIOHA
OH2-JHE/JHF/OHA Single-StageCantilevered Chemical Process Pump
The JHE/JHF series comply with API610-10thand DIN/IS0/VDMA24927 standardsthe OHA series meet API610-11 standards
Pressure-bearing components:Self-venting, centerline outletLarge-size (DN80) pumpsall feature a double volute casing;Thickened intermediate support designfor the pump body to meet
API610 nozzle load requirements.
Imported:Baffle design prevents liquid fromforming turbulence and improvescavitation resistance.
Flange:
Standard configuration HG/T 20615 CL300 RF;
Custom designs available upon request.
Cavity:
API682 standard
Meets SPTS-RE04-T001/T002
Sealing type:
Cartridge-type mechanical seal design
Bearing Assembly:
Radial: Deep groove ball bearing
Thrust: Angular contact ball bearing,gck-torbacaninmecage
Coupling:
Extended section design
Impeller:
Employs a low-NPSHr closedimpeller with a high-efficiencyhydraulic design and precision casting
Residual liquid drainage structure:
The flange-type residual liquid drainage systemis the standard structure. To meet user specifications,the residual liquid drainage system can be equippedwith corresponding supports.
Pump seal:Controlled compressionspiral wound gasket
Shaft:Heavy-duty, large-diameter,low-deflection designensures the service lifeof bearings and seals.
Bearing Housing:Multi-functional design: temperaturemeasurement vibration measurementheating/cooling Only 5 specificationsin the entire series Multiple coolingmethods: air cooling, wind cooling,water cooling.Large heat dissipationfinsOil bath heating for low-temperature environments Optionaloil mist lubrication design.
Lubrication methods:Dil slinger lubrication, oil bath lubrication,oil mist lubricationOil seals:Bearingisolators
High-efficiency intelligent pump
High EnergyEfficiency
10~50%
Energy saving rate
Reliability
Low axial deflection index,conforming to API 610 11th,reinforced center supportdesign, reinforced pump coverdesign, and reinforced basesupport for the pump head.
Highly ModularIntegrated Design
The entire series includes 5 specifications
of bearing housings, which can becustomized according to user requirements.
Intelligent upgrade,long-term operation
We provide innovative predictivemaintenance solutions to reducequipment operation and maintenancecosts, minimize unplanned downtimelosses, extend bearing life, enableintelligent product upgrades,and ensure long-termequipment operation.
Product Advantages
High-efficiency energy-saving pump
Performanceparameters
Diameter: 25~400mmFlow rate: ~2600m2/hHead: ~300mPressure: ~5.0MPaTemperature: -80°C~+450°C
Applicationareas
PetrochemicalsNatural GasPower IndustryCoal Chemical Industry
Tailored for high-challenge service carrying slurries, concentrated strong acids and media with solid particle content between 1% and 6%, the OH2-JHF upgrades all flow path hardware with high-chromium wear-resistant alloy casting to withstand continuous particle scouring and intense chemical erosion. Its semi-open reinforced impeller with adjustable front wear plate clearance avoids clogging when pumping gypsum desulfurization slurry, molten sulfur circulation liquid and mixed acid metallurgical leachate at operating temperatures peaking at 450°C. A dual balance hole auxiliary thrust reduction structure is integrated into the JHF volute design to offset amplified axial loads generated by two-phase solid-liquid flow, extending bearing service life by nearly 40% versus standard cantilever pumps operating under slurry duty. The bearing housing adds an independent forced air cooling fin assembly as standard, while water cooling jackets are available for ultra-high-temperature medium applications above 350°C. Unlike JHE’s single volute, JHF adopts double volute hydraulic architecture to balance radial hydraulic forces under off-design partial flow conditions, drastically reducing vibration amplitude during variable load production shifts common in fertilizer and coal gasification plants. All JHF wetted parts feature thickened wall thickness and overlay anti-corrosion surfacing treatment, lowering frequency of spare part replacement for factories running high-abrasion process lines.
Unified technical parameters shared by both OH2 series variants cover flow rates from 3 m³/h to 2600 m³/h, maximum single-stage head up to 300 meters and design working pressure reaching 5.0 MPa, fully covering low, medium and high-pressure industrial circulation requirements. Baseplates comply with API 610 heavy-duty grouted specifications, equipped with integrated anti-vibration isolation pads to stop equipment vibration from interfering with adjacent online monitoring instruments. Every finished OH2-JHE and OH2-JHF unit passes full factory performance testing including hydraulic curve verification, thermal cycling aging and 24-hour continuous load operation inspection, with complete API-compliant test reports, material mill certificates and dynamic balancing records supplied alongside each pump set. For plant managers aiming to lower total ownership cost over 5–10 year equipment lifespans, splitting clean and abrasive service duties between JHE and JHF eliminates the waste of deploying heavy-duty slurry pumps on mild fluid loops while preventing frequent component failure from using standard pumps on acid-slurry media, forming a cost-efficient two-tier pumping solution matching diversified production workshop demands.
CERTIFICATE DISPLAY
Our company offers variety of products which can meet your multifarious demands.
In accordance with ISo 9001 Quality Management, ISo 14001 Environmental Management, ISO 45001Occupational Health & Safety Management, ISO 27o01 Information Security Management, TFS (Togetherfor Sustainability), API Q1 of American Petroleum Institute, CE and other system standards. We strictlycontrol full-process product quality to fully meet customers' requirements.
Recognized as a National Manufacturing Single Champion Enterprise, a National "Little Giant"Enterprise in Specialized, Refined, Differential, and Innovative Industries, and a National High-TechEnterprise, the company specializes in sulfur-phosphorus chemicals, non-ferrous metallurgy,petrochemicals, coal chemicals, and fine chemicals.
FACTORY DISPLAY
JH pumps collaborates deeply with global customers. With advanced R&Dtechnology, rich application experience and complete product series, it providesworld-class quality total solutions to improve efficiency and production capacity,reduce energy consumption and cost for our customers, and realize sustainabledevelopment. JH pumps products cover more than 30 series and over 1000specifications, which are widely used in petrochemical industry, sulfur andphosphorus chemical industry, non-ferrous smelting industry, coal chemicalindustry, fine chemical industry and other fields. This is a valuable asset that wehave created and the basis for our products to be widely praised and trusted inthe global market
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