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High-Temperature Chemical Pump

Thermal Oil and Hot Water Circulation Pump

High-Temperature Chemical Pump
High Temperature & Circulation Pumps

High-Temperature Chemical Pump

Thermal Oil and Hot Water Circulation Pump

High-temperature chemical pump designed for thermal oil, hot water, and heat transfer fluid circulation at temperatures up to 350°C.

Category: High Temperature & Circulation Pumps

Product Specifications

Flow Rate5 - 400 m³/h
Head20 - 200 m
Power7.5 - 300 kW
Speed1450 / 2900 rpm
Casing MaterialCarbon Steel / Alloy Steel
Impeller MaterialAlloy Steel / 316SS
Max Temperature350 °C (thermal oil)
Max Pressure4.0 MPa
Seal TypeHigh-Temp Mechanical Seal with Flush
StandardAPI 610 / ISO 5199

Product Description

The high-temperature chemical pump is a heavy-duty centrifugal pump specifically engineered for circulating thermal oil, hot water, and other heat transfer fluids at elevated temperatures. It features a centerline-mounted casing and special cooling systems to handle thermal expansion and maintain seal and bearing life. The pump features a centerline-supported casing to accommodate thermal growth, a high-temperature mechanical seal with flush plan, and air-cooled or water-cooled bearing housing.

Applications

  • Thermal oil circulation
  • Hot water systems
  • Industrial heating
  • Chemical processing
  • District heating
  • Waste heat recovery

Quality Assurance

All pumps are manufactured under ISO 9001 quality management system. Each pump undergoes rigorous testing including hydrostatic pressure test, performance test, NDT inspection, and dynamic balance verification before shipment. We provide comprehensive documentation including test reports, material certificates, and operation manuals.

Why Choose Our High Temperature & Circulation Pumps

High-Temperature Alloy Construction

Cast steel or 12% chrome wetted parts rated for continuous operation up to 350°C, with centerline mounting to manage thermal growth in hot chemical process service.

Jacket Options Available

Steam or hot oil jacket for crystallizing, high-viscosity, or heat-sensitive fluids, maintaining process temperature and preventing solidification during shutdown.

Forced Circulation Hydraulics

Low-NPSH, high-flow impeller design optimized for evaporator, crystallizer, and reboiler circulation service, with stable operation at low system head.

Heavy-Duty Sealing

API 682 compatible seal chamber with Plan 23 or Plan 32 flush for high-temperature service, with water-cooled seal support system available.

Key Features

Centerline-mounted casing for thermal stability
Temperature range up to 350°C (thermal oil)
Flow rates up to 400 m³/h, heads up to 200m
Air-cooled or water-cooled bearing housing
High-temperature mechanical seal with API flush
Alloy steel shaft and impeller
Low NPSH design for hot liquids
Suitable for thermal oil and hot water

Frequently Asked Questions

What is the maximum temperature?

The pump can handle thermal oil up to 350°C and hot water up to 180°C (standard) or 250°C with high-temp configuration.

Does it require cooling water?

For temperatures above 250°C, water-cooled bearing housing and seal flush are recommended. Air-cooled version is available for water-scarce areas.

Can it handle thermal oil with particles?

The pump is designed for clean thermal oil. For oils with coke or particles, we recommend a strainer at the suction and hardened wear parts.

Selection Guide

✅ When to Choose This Pump

  • Thermal oil and hot oil circulation
  • Boiler feedwater and condensate service
  • Forced circulation in evaporators
  • High-temperature process heating systems

⚠️ When NOT to Choose

  • Ambient temperature water service
  • Strong acids requiring lining
  • Low-flow precision metering
  • Portable/temporary installations

💡 Common Selection Mistakes

  • Not using centerline mounting for thermal expansion
  • Ignoring NPSH for hot fluids
  • Using standard seal without cooling
  • Not allowing for thermal growth in piping

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