Hydraulic separator Termojet in thermal insulation 1 1/2" HS-27

Hydraulic separator GS-27 with thermal insulation — Termojet hydraulic separator with 1½″ BSP male connections for medium and large boiler rooms: up to 95 kW at ΔT=10 °C and up to 145 kW at ΔT=20 °C. The device makes the boiler circuit and consumer circuits hydraulically independent, stabilises pump operation, and protects the heat generator.

Operating principle of the hydraulic separator: a low pressure-loss zone is created between the primary and secondary circuits. If the boiler pump flow rate differs from the total consumer flow rate, the excess heat-transfer fluid passes through the separator body — without pump conflicts or pressure surges. A built-in air separator evacuates dissolved gases to an air vent (BSP female ½″ connection), a built-in dirt trap settles sediment which is drained via a BSP female ½″ valve. A socket for a BSP female ½″ temperature sensor for boiler-room automation is also provided.

Areas of application: boiler rooms with multiple circuits and separate pumps, boiler cascades, systems with solid-fuel boilers, commercial buildings. For large-area buildings with a heat pump, the GS-27 guarantees a stable minimum flow through the heat exchanger — see Termojet heat pumps. Flow distribution after the separator is conveniently handled by a manifold K22N.125 with bottom outlets paired with Termojet pump groups.

Advantages of the Termojet hydraulic separator:

• hydraulic separation + air separation + dirt settling in one body;
• stable pressure differential — longer boiler service life and fuel savings;
• thermal insulation and wall-mounting brackets included in the delivery set;
• steel body, own manufacture in Ukraine, manufacturer's warranty.

Technical specifications: maximum flow rate Gmax 9.25 m³/h, capacity 95 kW at ΔT=10 °C and 145 kW at ΔT=20 °C, connection 1½″ BSP male, centre-to-centre distance between ports 240 mm, height 550 mm, width 220 mm, volume 6.22 l.

Smaller and larger sizes are available in the Termojet hydraulic separators catalogue: from GS-25 at 1″ to GS-28 at 2″.

Frequently asked questions

When is a hydraulic separator mandatory?
When two or more pump circuits operate in the system, or the boiler pump flow rate differs significantly from the total consumer flow rate — a typical situation for boiler rooms from 50 kW.

What capacity can the GS-27 handle?
95 kW at ΔT=10 °C and 145 kW at ΔT=20 °C at a maximum flow rate of 9.25 m³/h — sufficient for a large house or commercial building.