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API 610 OH1 Horizontal Single-Stage Centrifugal Pump
API 610 OH1 Horizontal Single-Stage Centrifugal Pump
API 610 OH1 Horizontal Single-Stage Centrifugal Pump
API 610 OH1 Horizontal Single-Stage Centrifugal Pump

Afghanistan API 610 OH1 Horizontal Single-Stage Centrifugal Pump

Flow Range: 6.3~400 m3/h
Head Range: 5~125 m
Fluid Temperature: -20~150 ℃ (Please specify if higher than 80℃)
Inlet Pressure: 0~7.5 MPa (Please specify if higher than 0.4 MPa)
Shaft Seal: packing seal, mechanical seal
Available Materials: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD



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Phone:400-888-8888

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Product Description

The OH1 pump is a horizontal, single-stage, single-suction overhung centrifugal pump designed and manufactured in full compliance with the latest API 610 (ISO 13709) industrial standard. Different from OH2 pumps, the OH1 type features afoot-mounted casing with its bearing assembly located between the impeller and the coupling end. This classic API construction delivers exceptional rigidity, mechanical stability, and operational safety for continuous-duty process applications.

OH1 pumps are widely recognized as the most reliable general-purpose process pumps for refineries, petrochemical plants, power stations, and oil & gas facilities, specially engineered for handling high-temperature, slightly corrosive, and clean-to-medium contaminated industrial fluids under steady 24/7 operating conditions.

 

 

Application

OH1 API pumps are extensively adopted for stable fluid transportation in heavy-duty industrial fields:

  • Petroleum & Refinery: Crude oil transfer, fuel oil circulation, refinery process water, condensate oil, and intermediate fluid delivery
  • Petrochemical & Chemical Industry: Mild corrosive medium transfer, solvent circulation, process water, and chemical auxiliary fluid pumping
  • Power Generation: Plant cooling water, auxiliary boiler water, condensate recycling, and circulating water systems
  • Oil & Gas Field: Well-site process fluid transfer, pipeline boosting, and produced water treatment
  • General Industrial Process: Water circulation, medium-temperature fluid delivery, and auxiliary system fluid transportation

Typical Operating Parameters

  • Flow range: 3 ~ 1800 m³/h
  • Head range: 8 ~ 200 m
  • Max working pressure: 10.0 MPa
  • Medium temperature: -40℃ ~ +400℃
  • Speed: 1450 / 2900 RPM
  • Continuous 24-hour operation capability

Material 

We provide customizable material combinations to adapt to different temperatures, corrosion levels, and medium characteristics:

  • Standard Clean Oil & Water Service
    Casing: Cast Iron / WCB Carbon Steel
    Impeller: SS304 Stainless Steel
    Shaft: 4140 Alloy Steel with Stainless Steel Sleeve
  • Mild Corrosive & General Petrochemical Service
    Casing: WCB Carbon Steel
    Impeller: SS316L Stainless Steel
    Shaft: 4140 + SS316L Anti-corrosion Sleeve
  • Medium Corrosive & High-temperature Service
    Casing: CF8 / CF8M Cast Stainless Steel
    Impeller: 316L / Duplex 2205
    Shaft: High-grade stainless steel or duplex steel
  • Severe Corrosion & Special Process Service
    Wetted parts: Duplex Steel 2205 / 2507, CD4MCU, Hastelloy optional

Model Description

Example: COZ (I) 50-315A

COZ -- Chemical Process Pump

50 -- Discharge diameter: 50 mm

315 -- Impeller diameter: 65 mm

A -- Impeller diameter trimming code (A for the first trimming, B for the second trimming)

 

Structure Features

  • Classic OH1 API Standard Structure
    Foot-mounted radial split casing design, with bearings installed between the impeller and motor coupling. This layout ensures excellent overall mechanical balance, low vibration, and high operational stability during long-term continuous running.
  • Rugged Integral Pump Casing
    Thick-wall casting with standard corrosion allowance, high structural rigidity, and strong resistance to pipeline stress and thermal deformation, fully meeting API 610 heavy-duty requirements.
  • Optimized Overhung Impeller Design
    Back-vane hydraulic balance structure effectively reduces axial thrust, minimizes bearing load, and extends the service life of rotating components.
  • Standard API Mechanical Seal System
    Compatible with full API seal flush plans (Plan 11, 13, 21, 23, 32, 52, 53, 62). Single seal, tandem seal, and double seal configurations are available for flammable, toxic, and high-temperature media to ensure zero leakage operation.
  • Heavy-Duty Bearing Assembly
    Large-size precision rolling bearings with grease or oil lubrication options. Stable support structure guarantees low noise and long service life under high-load working conditions.
  • Convenient Maintenance
    Reasonable structural layout enables quick disassembly and routine maintenance without removing pump piping, greatly reducing equipment downtime and maintenance costs.

Full API 610 Compliance
Equipped with vent ports, drain ports, wear protection parts, anti-rotation devices, and standardized auxiliary cooling & flushing pipelines, fully adapted to harsh industrial process environments

Product Strength

  • Strictly follows API 610 latest edition for heavy-duty process industry standards
  • Superior mechanical stability with low vibration and long continuous operation cycle
  • Multiple material solutions for temperature and corrosion adaptability
  • Complete API sealing solutions for safe and leakage-free process fluid delivery
  • Low maintenance cost, high interchangeability of standard spare parts
  • Ideal cost-effective API process pump for general refinery and chemical process services

 

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AfghanistanAPI 610 OH2 Horizontal Single-Stage Centrifugal Pump

AfghanistanAY Type API 610 BB2 Chemical Process Centrifugal Pump

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