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 meetAPI610 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:
API 682 standardSealing type:
Meets SPTS-RE04-T001/T002
Cartridge-type mechanical seal design
Bearing Assembly:
Radial: Deep groove ball bearing
Thrust: Angular contact ball bearing,back-to-back arrangement.40 contact angle, metal cage
Coupling:
Extended section design
Lmpeller: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 compression
spiral 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:Oil slinger lubrication, oil bath lubrication,oil mist lubricationOil seals:Bearing isolators
The JHE/JHF/OHA series are single-stage, single-suction, radially split,centerline-mounted, cantilevered centrifugal pumps. The JHE/JHF series
comply with API610-10th and DIN/ISO/VDMA24927 standards; the OHA series meet API610-11 standards. Its optimized design performance and
structure accommodate both light and heavy-duty applications, while modular construction enhances pump interchangeability.
Application Scope:
Suitable for conveying various clean or slightly particulate-laden media,low-temperature or high-temperature, medium-pressure or high-pressure,neutral or corrosive substances. Used in refineries, petrochemical plants,ethylene facilities, cryogenic engineering, coal chemical plants, finechemical plants, and other related fields.
High-efficiency intelligent pump
High EnergyEfficiency
Energy saving rate10~50%
Reliability
Low axial deflection indexconforming 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 upgradelong-term operation
We provide innovative predictivemaintenance solutions to reduceequipment 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
Developed specifically for overseas sulfuric acid plants, coal gasification complexes and non-ferrous hydrometallurgical factories handling solid-laden corrosive slurries, the OH2-JHF variant upgrades all flow path hardware with high-chromium abrasion-resistant alloy casting to withstand media with solid particle content from 1% to 6% at peak working temperatures of 450°C. Unlike the JHE single volute design, JHF implements double volute hydraulic construction to counteract unbalanced radial hydraulic thrust during partial-load operation, a frequent issue in overseas fertilizer plants with variable production throughput schedules. Reinforced semi-open impellers with adjustable front wear plate clearances prevent blockage by gypsum desulfurization slurry and mineral leachate, reducing unplanned downtime for remote overseas production sites with limited on-site engineering support. The bearing housing integrates factory-standard forced air cooling fins, with water cooling jacket add-ons offered for Middle Eastern and Russian high-temperature heavy oil processing plants operating above 350°C. Composite dual balance hole thrust offset architecture lowers axial load impact on rolling bearings, extending service intervals between bearing replacements for end-users thousands of kilometers away from regional spare parts warehouses. All JHF export units feature thickened casing walls and overlay anti-weld surfacing on critical erosion-prone surfaces, minimizing cross-border warranty claims caused by premature flow path wear under continuous slurry pumping cycles.
Shared performance boundaries for both export pump models cover flow 3–2600 m³/h, maximum head 300 m, design pressure up to 5.0 MPa, supporting low-flow precision metering loops and large-volume main circulation systems equally. All drive options (direct motor coupling, gearbox drive, steam turbine drive) comply with international IEC motor standards, simplifying matching of local power supply equipment for global clients. For industrial equipment distributors aiming to consolidate pump product portfolios, pairing OH2-JHE and OH2-JHF creates a two-tier API-certified solution that covers 90% of mainstream chemical fluid transfer working conditions without carrying multiple disjoint pump series, slashing warehouse storage space and cross-border shipping costs while delivering reliable, standard-compliant pumping performance to end chemical manufacturers across all international industrial regions.
CERTIFICATE DISPLAY
We have certificates and certifications to meet standards and comply with relevant regulations
Recognised as a National Champion Enterprise in Manufacturing, a National Specialised,
Refined, Distinctive and Innovative "Little Giant" Enterprise, a National High Tech Enterprise,and a recipient of the Ministry of Industry and Information Technology's Service-Oriented
Manufacturing Demonstration Project and Industrial Internet Pilot Demonstration Project,
the company has cultivated nearly three decades of expertise in the specialised pump sector.
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
WHY CHOOSE US
01
CAPABILITIES OF JH PUMPS
It is in the world's first-class technology echelon in terms of fluid power control, equipment design and energy efficiency and other performance enhancement. JH pumps independently innovated and developed more than 30 new materials of JSB alloy series in material engineering. JH pumps capabilities areas follows:
02
PRECISION CASTING
JH pumps Casting factory owns 4 special steel casting lines, supported by industrial 3D printing technology for rapid mold manufacturing. It includestwo 3,000t/a resin sand lines, one 600t/a lost foam casting line and one100t/a precision casting line. We adopt ProE 3D simulation for castingdesign and Huazhu CAE software for solidification pre-analysis.Equippedwith floor-standing spectrometer, heat treatment equipment, shot blastingand other advanced equipment to ensure the quality of castings. The molten steel produced at one time reaches 2.5 tons.
03
PROCESSING CAPABILITY
CNC horizontal lathe, CNC vertical lathe, CNC floor milling andboring machine, machining center and more than 200 sets of equipments The maximum machining diameter reaches 3 meters, and the maximum workpiece length is 6 meters.
04
PERFORMANCE TESTING
In line with the rotary power pump hydraulic performanceacceptance test level 1, 2 and 3national standard level 1precision test bench, closed test bench, power supplyvoltage up to 10kV, power up to 5000kW, the product100% pass test.
OUR PARTNERS
Working together with a shared vision, we achieve mutual success.
