RPVOT Tester

Oxidation Stability By Rotating Pressure Vessel Method ( RPVOT ) As per ASTM D 2112, D 2272, IP 229, IS:12958-1990 :

The Rotating Pressure Vessel Oxidation Test (RPVOT) determines the oxidation stability of an oil.  It measures the actual resistance to oil oxidation whereas the other tests detect oxidation that is already present in the oil.

Features

• The Equipment is used to evaluate the oxidation stability of new and in-service engine, turbine and insulating oils in the presence of water and a copper catalyst.
• 2 Nos. of Rotating pressure vessels oil bath on castors.
• Digital electronic temperature controller with safety mechanical fail-safe thermostat.
• Heavy duty drive motor to rotate pressure vessel at 100 rpm and is housed below the oil bath.
• Rotating pressure vessel constructed of stainless steel with stem and valve to receive pressure transducer.
• Pressure vessel is held at an angle of 30°
• Capacity of bath is 70 litres with stainless steel body and top cover.
• Catalyst wire, glass liners with PTFE-cover, an ASTM 96C thermometer, 'O' ring supplied with the unit.
• Automatic Pressure digital data logger with PC interfacing software supplied on CD-ROM with pressure sensor.
• Power Supply : 120 / 220 Volts AC, Single Phase 50 / 60 Hz

Advance Information*

Overview

The RPVOT Tester by Spear is an advanced apparatus designed specifically for determining the oxidation stability of various oils, including engine, turbine, and insulating oils. Using the Rotating Pressure Vessel Oxidation Test (RPVOT), this equipment provides precise and accurate measurements as specified by standards such as ASTM D 2112, ASTM D 2272, IP 229, and IS:12958-1990. RPVOT meticulously assesses the resistance of oils to oxidation, offering a crucial diagnostic tool for maintaining and ensuring the longevity and performance of lubricants.

Key Features

Comprehensive Oil Stability Testing

The RPVOT Tester is engineered to evaluate the oxidation stability of both new and in-service oils. By subjecting the oil samples to both water and a copper catalyst, this apparatus simulates real-world conditions to provide reliable data on the oil's oxidation resistance, as opposed to merely detecting existing oxidation.

Dual Rotating Pressure Vessels

The unit is equipped with two robust rotating pressure vessels, allowing simultaneous testing of different oil samples or duplicate tests for consistency. Each vessel is meticulously constructed from high-grade stainless steel to ensure durability and resistance to corrosion, and is designed with a stem and valve to accommodate a pressure transducer.

Enhanced Temperature Control

A digital electronic temperature controller, complemented by a safety mechanical fail-safe thermostat, maintains precise temperature conditions within the oil bath. This precision ensures consistent and accurate test results. The temperature control system aligns with industry standards, providing high reliability during extensive testing routines.

High-Capacity Oil Bath

The oil bath possesses a substantial capacity of 70 liters, crafted from stainless steel. It includes a top cover to minimize heat loss and exposure to external contaminants. The bath's design ensures uniform heat distribution, vital for consistent test conditions.

Heavy Duty Drive Motor

A powerful and reliable drive motor rotates the pressure vessels at a constant speed of 100 RPM. This motor, strategically housed below the oil bath, contributes to the stable rotational speed necessary for accurate oxidation testing.

Precise Pressure Measurement

The pressure vessel is held at an angle of 30 degrees, optimizing the testing environment. Each vessel is fitted with a detailed pressure transducer system, offering precise pressure readings and contributing significantly to the accuracy of the oxidation stability measurements.

Complete Test Accessories

The RPVOT Tester comes fully equipped with all necessary accessories for immediate operational capability. This includes catalyst wire, glass liners with PTFE covers, an ASTM 96C thermometer, and 'O' rings. These accessories ensure that users have everything needed to commence and continue testing efficiently.

Digital Data Logging

The system includes an automatic pressure digital data logger, which seamlessly interfaces with PC software provided on CD-ROM. This feature enables comprehensive data tracking, analysis, and storage, facilitating a streamlined and efficient workflow for laboratory personnel.

Technical Specifications

• Standards Compliance: ASTM D 2112, ASTM D 2272, IP 229, IS:12958-1990
• Rotating Pressure Vessels: 2 stainless steel vessels with stems and valves
• Bath Capacity: 70 liters
• Temperature Controller: Digital electronic with a mechanical fail-safe thermostat
• Rotation Speed: 100 RPM
• Pressure Measurement: Digital data logger with PC interfacing, pressure transducer included
• Motor: Heavy-duty drive motor
• Angle of Pressure Vessel: 30 degrees
• Power Supply: 120 / 220 Volts AC, Single Phase, 50 / 60 Hz
• Accessories Included: Catalyst wire, glass liners with PTFE covers, ASTM 96C thermometer, 'O' rings
• Data Logging: Automatic digital logging with software

Applications

The RPVOT Tester by Spear is indispensable for industries where oil oxidation stability is critical. Its diverse applications include, but are not limited to:

• Engine Oils: Evaluating the antioxidant properties of new and used engine oils helps in predicting their performance and lifespan. This assessment is crucial for automotive industries to ensure engine longevity and efficiency.

• Turbine Oils: Testing the oxidative stability of turbine oils is essential for the effective maintenance of power plants and industrial turbines. These tests help prevent unexpected breakdowns and optimize operational efficiency.

• Insulating Oils: The oxidation stability of insulating oils used in transformers and other electrical equipment can be critical for their safe and effective performance. The RPVOT Tester assists in maintaining these oils in optimal condition.

Ease of Use

Designed with user-friendliness in mind, the RPVOT Tester incorporates several features to streamline operations:

• User-Friendly Interface: The digital control panel is ergonomically designed, making it easy to operate for both novice and experienced users.
• Detailed Instructions: Accompanying the equipment, a comprehensive manual offers step-by-step guidance on