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Castrol Perfecto HT 2 (ex BP Transcal LT)
Operating temp: -30C to 250C

Description Instructions Sizes, Prices & Offers

Castrol Perfecto HT 2 (formerly known as BP Transcal LT) is a high quality mineral oil combining low vapour pressure, and high levels of thermal stability, specific heat and thermal conductivity with exceptional low temperature fluidity.


Perfecto HT 2 is recommended primarily for non-pressurised closed liquid phase heating systems that incorporate both heating and cooling branches (as for example, where an exothermic or heat releasing reaction takes place). The low temperature fluidity ensures that adequate circulation occurs in the coolest part of the circuit. The maximum recommended bulk-fluid temperature for Perfecto HT 2 is 250C and the fluid also operates effectively in cooling systems down to bulk temperatures of -30C.

Usage notes

Before being commisioned, the system should be pressure-tested for leaks and then thoroughly flushed with Perfecto HT 2. Water should never be used. With the system flushed and drained, it should be filled with fresh Perfecto HT 2. All air must be completely vented from the system before full temperature is imposed.

For maximum efficiency, the heat transfer fluid should be circulated in conditions of turbulent flow. Care must be taken to ensure that bulk fluid temperature does not exceed 250C as this could lead to degradation of the oil.

Despite the excellent oxidation stability of Perfecto HT 2 various precuations must be taken to minimize exposure to air, especially if the temperature of the fluid in the expansion chamber exceeds 50C. A floating cover can be provided, or the oil can be blanketed with inert gas.

For further technical information see the Castrol Perfecto HT 2 technical data sheet.

For professional use only. The above information is given in good faith but without warranty and does not constitute a technical specification. For technical support and application guidance call 01539 722247. Technical specifications and certificates of conformity and analysis available on request.

Instructions for Use
Use only as directed on the product label, or contact SwanTek on 01539 722247 for technical advice.

Special Offers
To order call 01539 722247 now!

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Code Pack Size Price Per Notes Buy Now
TRA11203 1 x 20L Please call or email for current price Click & Buy
TRA11208 1 x 208L Please call or email for current price Click & Buy
1. Prices exclude VAT and are valid only for pack sizes stated. Prices subject to change without notice.
2. For volume discounts other than those shown above call 01539 722247.
3. Delivery is usually next working day for items in stock. Delivery charged by weight from 13.50 to a maximum of 45.00. Additional charges apply for delivery to Scottish Highlands, Northern Ireland and offshore islands, and for timed deliveries, hazardous goods and branded lubricants.
4. All major credit/debit/purchasing cards accepted. Minimum credit account invoice applies.