JIANGSU ZHONGNENG CHEMICAL TECHNOLOGY CO., LTD
Thermal oil products
SCHULTZ® Heat Transfer Fluids
SCHULTZ® S713
SCHULTZ® S713
SCHULTZ® S713
Temperature-50℃～330℃
SCHULTZ® S713 is a premium synthetic heat transfer fluid engineered with breakthrough performance characteristics, including ultra-low viscosity, exceptional thermal stability, and unmatched operating range. As a high-performance equivalent to Dow Chemical's DOWTHERM™ Q, it enables seamless system upgrades through complete miscibility at any blending ratio. This advanced fluid delivers reliable long-term operation across an extreme temperature range of -50°C to 330°C, combining superior heat transfer efficiency with extended service life.
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Product Features
Industry-Leading Thermal Stability
SCHULTZ® S713's proprietary molecular design achieves best-in-class thermal-oxidative stability, limiting degradation to ‌only 3.4% after 1,000 hours at 330°C‌. This suppresses coke formation by >90% compared to conventional HTFs, significantly reducing fouling risks in high-temperature applications.
01
Optimized Cold-Weather Fluidity & Startup Reliability

Specially formulated for arctic conditions, SCHULTZ® S713 achieves an ultra-low pour point (-70°C) and crystallization point (<-50°C), maintaining fluidity in subzero environments without auxiliary heating. This cold-start capability eliminates the need for preheat systems, making it ideal for northern climates and outdoor installations while enhancing operational readiness and energy efficiency.

02
‌Full-Range Low-Viscosity Pumpability
The fluid's optimized viscosity profile ensures:

• ‌53.5 mm²/s (@ -50°C)‌ for cold-start operations
• ‌0.25 mm²/s (@ 300°C)‌ – 30% lower than mineral-based HTFs
Enabling efficient heat transfer across the entire operating range (-50°C to 330°C).This dual-range performance enables simultaneous heating/cooling applications within a single system, simplifying plant design and reducing media inventory requirements.

03
Comprehensive Material Compatibility
Certified non-corrosive to all common industrial metals including carbon steel, stainless steel, copper, and aluminum alloys. SCHULTZ® S713 eliminates the need for corrosion inhibitors while extending equipment service life across diverse system configurations.
04
Typical data
AppearanceColorless or yellow transparent liquid
Flash Point(Closed Cup) / ℃120
Autoignition Temperature / ℃412
Pour Point /  ℃-70
Density(20℃) / (kg/m3 )980
Specific Gravity (16℃)0.986
Normal Boiling Point / ℃267
Moisture Content / (mg/kg)150
Crystallization Point / ℃<-50
Kinematic Viscosity / (mm2/s)  40℃2.82
Molecular Weight (average)190
Optimum Use Range / ℃-50~330
Maximum Bulk Temperature / ℃330
Maximum Film Temperature / ℃360

Note: The above data are based upon test samples in the laboratory and not guaranteed for all products.
For full specifications of SCHULTZ®S713 , please contact our sales dept.

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