Варианты теплоносителей когда антикоррозийная защита не требуется

Technical specifications

Freezing point and concentration of aqueous propylene glycol solutions
Parameter	Value
Solution freezing point	PG solution −5 °C−5 °C PG solution −10 °C−10 °C PG solution −15 °C−15 °C PG solution −20 °C−20 °C PG solution −25 °C−25 °C PG solution −30 °C−30 °C PG solution −35 °C−35 °C PG solution −40 °C−40 °C
Propylene glycol concentration	PG solution 20%20% PG solution 25%25% PG solution 30%30% PG solution 35%35% PG solution 40%40% PG solution 45%45% PG solution 50%50%

Freezing point and concentration of aqueous ethylene glycol solutions
Parameter	Value
Solution freezing point	EG solution −5 °C−5 °C EG solution −10 °C−10 °C EG solution −15 °C−15 °C EG solution −20 °C−20 °C EG solution −25 °C−25 °C EG solution −30 °C−30 °C EG solution −35 °C−35 °C EG solution −40 °C−40 °C
Ethylene glycol concentration	EG solution 20%20% EG solution 25%25% EG solution 30%30% EG solution 35%35% EG solution 40%40% EG solution 45%45% EG solution 50%50%