Introduction

The Sabot Acid-Resistant & High-Temperature Resistant Metal Screw Pump is a premium industrial-grade pump designed specifically for the toughest fluid handling environments. It combines acid resistance, high‐temperature durability, and the robust positive displacement action of a screw pump to reliably move corrosive, abrasive, or viscous fluids in processes where other pumps fail prematurely. Constructed entirely from acid-proof metal alloys (such as super duplex stainless steel, titanium, Hastelloy, or similar high-grade corrosion resistant alloys), this pump withstands both chemical attack and elevated temperatures, delivering long service life, reduced maintenance, and consistent performance under harsh conditions. Its screw mechanism (single, twin, or triple screw depending on configuration) ensures steady, pulsation-free flow, excellent self-priming (depending on version), and capability to handle non‐Newtonian fluids. Designed for industries such as chemical processing, petrochemicals, oil & gas, mining, pulp & paper, high-temperature acid baths, metal finishing, and other challenging applications, the Sabot pump is a critical asset wherever fluids are aggressive or hot, or both.

Key Features & Advantages

Here are the primary features and benefits that make the Sabot Acid-Resistant & High-Temperature Resistant Metal Screw Pump stand out:

1. Superior Corrosion Resistance

• Wetted parts (rotor, casing, shaft) made from highly acid-resistant metals or super-alloys (e.g. Hastelloy C276, duplex or super duplex stainless steels, titanium grades) that resist pitting, crevice corrosion, and chemical attack across a wide pH range.

• All seals, fasteners, and internals are selected with chemical compatibility in mind to prevent weak points.

2. High-Temperature Capability

• Engineered to operate at elevated temperatures (typical models up to 200-300 °C, depending on materials and seal type).

• Optional cooling or thermal protection features for components (shaft seals, lubricant chambers) to sustain high-temperature operation.

3. Robust Screw (Rotor/Stator or Multi-screw) Mechanism

• Positive displacement screw design (single-, twin-, or triple-screw) provides steady flow under pressure, tolerates viscosity changes, and handles shear-sensitive fluids gently.

• Capable of handling non-Newtonian fluids, slurries, or fluid mixtures with mild solids, depending on exact configuration.

4. Seal & Bearing Design for Harsh Environments

• High-temperature mechanical seals (single or double) or specialty seal materials.

• Bearings sized and cooled or lubricated for elevated temperatures and corrosive atmospheres.

5. Self-priming & Bidirectional Options

• Depending on model, pump can self-prime or be primed initially.

• Reversible flow in some designs for cleaning, back-flushing, or process flexibility.

6. Minimal Pulsation and Low Shear

• The screw action ensures continuous, smooth flow with low pulsation, preserving delicate product integrity (important in some chemical or specialty fluid applications).

7. Durability and Lower Maintenance

• Use of thick sections in casing, robust rotor/stator materials, and strong mounting/shaft designs leads to high mechanical durability.

• Designed for easy access to wear parts (rotors, seals) to reduce downtime.

8. Wide Range of Operating Conditions

• Handles wide spans of temperature, pressure, and pH.

• Compatible with high viscosity, acid, alkaline, oxidizing, or mildly abrasive fluids.

Technical Parameters

Below is a typical specification table for a high-end Sabot Acid-Resistant & High-Temperature Resistant Metal Screw Pump. Actual values will depend on specific model, materials, and configuration.

Notes from similar industrial screw pump data:

• Some screw pumps (not exactly “Sabot” but analogous designs) offer flow rates up to ~500 m3/h, pressure up to ~40-100 bar for high-pressure models. 

• Temperature operating limits commonly go from ambient up to ~200-300 °C, dependent on seal type and material chosen.

Application Scenarios

The Sabot Acid-Resistant & High-Temperature Resistant Metal Screw Pump is applicable wherever fluids are corrosive, hot, viscous, or a combination. Below are specific industrial contexts.

1. Chemical Processing Plants

Used for pumping acids (sulfuric, hydrochloric, nitric etc.), alkaline solutions, oxidizers, solvents. Typical services: feed to reactors, transfer between vessels, dosing of corrosive materials, handling of wastewater containing acids or pH extremes.

2. Petrochemical & Refining Industries

For transfer of hot petroleum fractions, catalyst slurries, corrosion-resistant duty (handling sour gas liquids, etc.), transfer of heavy oils at elevated temperature, or pumping hot decanting liquids.

3. Metal Finishing / Electroplating / Pickling

Pickling baths for steel, acid baths for metal cleaning, corrosion resistant pump needed to handle strong acid at high temperature, ensuring continuous flow, no breakdown under chemical attack.

4. Mining & Mineral Processing

Acid leaching solutions, hot ore slurries, acidic tailings, often at elevated temperatures. Handling abrasive particles; protection via rotor design and clearance.

5. Pulp & Paper / Textile

Used for chemical bleaching, acid or alkali chemical dosing at elevated temperatures. Hot wash-water, pulp chemical transfer.

6. Power Generation

Boiler feed applications, hot condensate return, acid cleaning, cooling water circuits, where acid or high temp fluid may be involved.

7. Specialty Industries

Food processing (if acids used in cleaning or processing), flavor extraction under hot acidic conditions, pharmaceutical processing where high temperature sterilization steps involve acid wash.

8. Wastewater & Effluent Treatment

Treating acidic effluents, acid mine drainage, hot waste streams from industrial plants. Needs corrosion and temperature resistance.

Usage Instructions

To ensure longevity, safety, and optimal performance, follow these detailed usage instructions.

Installation

1. Select proper site – pump should be mounted on a rigid foundation or frame that can tolerate thermal expansion and resist vibration.

2. Material compatibility – ensure your fluid’s temperature and chemical composition are within the material and seal ratings of the pump. Check pH, oxidizing agents, temperature.

3. Piping installation – minimize sharp bends; allow for thermal expansion; use expansion joints where needed; ensure inlet piping sized to provide sufficient Net Positive Suction Head (NPSH) to avoid cavitation.

4. Seal cooling / bearing lubrication – in high-temperature versions, include cooling or thermal isolation around seals or bearings to protect them.

5. Alignment – rotor, shaft, motor alignment is critical; misalignment leads to premature wear.

6. Pre-priming if required – depending on screw pump design, ensure that the pump is primed or to be self-priming per specifications to avoid running dry.

7. Instrumentation – Pressure and temperature sensors, flow meters etc. should be installed to allow monitoring.

Startup Procedure

1. Ensure all valves (inlet and outlet) are open.

2. Verify rotation direction (especially important if reversible or twin-screw).

3. Start motor at low speed to check for smooth rotation, leaks, vibration.

4. Gradually ramp up speed to normal operating rpm.

5. Monitor parameters (flow, pressure, temperature) to ensure stable performance.

Operation Tips

• Monitor for unusual noises, vibration, rises in temperature at bearings and seals.

• Avoid running dry. Even momentary dry running in high temperature or acid environments can destroy seals or stators.

• Keep fluid temperature within rated bounds. Exceeding temperature could degrade parts or seal faces.

• If fluid carries solids, ensure solids size and concentration are within rated allowable limits.

• Clean periodically – especially in acid service, to prevent buildup, scaling, or corrosion.

Cleaning & Maintenance

• For acid service, flush with neutralizing fluid or clean water after service to remove acid residue.

• Replace mechanical seals regularly per service schedule.

• Inspect rotor / screw thread for pitting, corrosion, or erosion. Replace or recondition if wear is excessive.

• Ensure lubricant (if used) in bearings is rated for temperature and compatible with environment.

• Maintain record of operating hours, flow and pressure deviations to indicate wear.

Installation & Safety Guidelines

• Place pump on a rigid strong base; allow supports to withstand thermal expansion.

• Ensure all piping and fittings are metal and acid-resistant; avoid unauthorized materials that could fail in acid exposure.

• Use insulated or shielded surfaces around hot enclosures to protect personnel.

• Safety valves or pressure relief devices may be required.

• Use acid compatible tubing, sealants, gaskets.

• Grounding and electrical protection in hazardous environment must conform to local codes.

How to Select the Right Model

When choosing a Sabot Acid-Resistant, High-Temperature Resistant Metal Screw Pump, assess:

1. Fluid Characteristics

• pH, chemical composition, presence of oxidizers or chlorides.

• Viscosity, temperature, solids content.

2. Operating Conditions

• Desired flow rate, pressure, duty cycle (continuous or intermittent).

• Max and min temperatures, start-stop frequency.

3. Material of Construction

• Choice of alloy for wetted parts.

• Seal materials rated for temperature/chemical.

• Rotor/stator geometry for wear resistance.

4. Seal System Selection

• Mechanical seal vs. specialty sealing.

• Cooling or buffering if needed.

5. Speed and Motor Power

• Estimate torque needed for viscous fluid.

• Factor in derating at high temp.

6. Maintenance Accessibility

• Ease of access to seals/rotor/stator.

• Availability of spare parts.

7. Safety and Regulatory Requirements

• Food / pharma / chemical regulations.

• Environmental, hazardous area rating if needed.