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USA Lab
CRH Closed Loop Heaters - 300°C - 6kw, 9kw, 18kw ,27kw & 36kw
in Heaters
$6,598.00 - $13,999.00
In stockPrice varies by Size.
Closed-loop silicone oil circulating heaters to 300 °C, in five sizes from 30 L / 6 kW to 300 L / 36 kW, with a sealed circuit that limits fluid loss.
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Description
CRH Closed-Loop Silicone Oil Heaters | Up to 300°C
Introducing the CRH Heaters, closed-loop circulating heaters engineered for precise, high-temperature performance up to 300°C. Purpose-built for modern laboratories, CRH delivers stable heating, rapid response, and dependable control for demanding workflows.
Unlike open-loop systems, the CRH’s sealed circuit maximizes thermal transfer and temperature uniformity while minimizing fluid loss. Pair with vacuum systems, jacketed reactors, columns, solvent tanks, and analytical instruments to unlock consistent results at scale.
Choose from five capacities with LCD or PLC touchscreen control, industrial-grade pumps, and robust construction to support larger columns, tanks, and high-heat applications. Silicone oil only.
Notice: Not compatible with 208V input (acceptable range 219–253V). Not intended for 24-hour operation; maximum continuous run is 16 hours.
Closed-Loop Heating Up to 300°C LCD / PLC Controls High-Flow Circulation
CRH-30L(v2) CRH-50L(v2) CRH-100L CRH-200L / 300L
Superior thermal control: closed-loop circulation boosts heat transfer and stability for uniform temps up to 300°C.
Scale-ready performance: high-output heaters and robust pumps support reactors, large columns, tanks, and high-heat loads.
Operator friendly: LCD/PLC interfaces with precise set-points, quick readouts, and reliable protections.
User Manual
Why this CRH closed-loop heater?
300°C capability — rapid heat-up and excellent stability for high-temperature processes.
Closed circuit design — improved heat transfer vs. open loop; reduced fluid loss; consistent results.
Flexible control — LCD digital or PLC touchscreen models with accurate set-points and monitoring.
Built for throughput — high-flow circulation pumps sized for reactors, columns, tanks, and solvent systems.
Lab-ready practicalities — silicone oil only; not compatible with 208V; max continuous run 16 hours.
Technical Specifications
SPECIFICATIONS
CRH-30L(v2)
CRH-50L(v2)
CRH-100L
CRH-200L
CRH-300L
Expansion Tank Capacity
20L
35L
58L
77L
198L
Oil Tank Dimensions
390 × 280 × 180 mm
450 × 300 × 200 mm
450 × 400 × 320 mm
480 × 400 × 400 mm
900 × 550 × 400 mm
Temperature Range
RT to 300°C
RT to 300°C
RT to 300°C
RT to 300°C
RT to 300°C
Power Requirements
220–240V 50–60Hz 30A Single Phase L6-30 Plug
220–240V 50–60Hz 48A Single Phase – Hardwired ONLY
220–240V 50–60Hz 56A Three Phase – Hardwired ONLY
220–240V 50–60Hz 82A Three Phase – Hardwire ONLY
220–240V 50–60Hz 115A Three Phase – Hardwired ONLY
Control Type
LCD Digital Display
LCD Digital Display
PLC Touchscreen
PLC Touchscreen
PLC Touchscreen
Heating BTUs / Wattage
20,472 BTU / 6000W
30,709 BTU / 9000W
18,000W
27,000W
36,000W
Total Power
6250W
9250W
19,100W
28,100W
38,900W
Circulating Pump Wattage
250W
250W
750W
750W
2.2KW
Temperature Accuracy
± 1°C
± 1°C
± 1°C
± 1°C
± 1°C
Pump Flow
35 L/min
35 L/min
150 L/min
150 L/min
250 L/min
Lift / Pressure [H2O]
25 m / 26 psi
25 m / 26 psi
25 m / 26 psi
25 m / 26 psi
32 m / 28.5 psi
Inlet / Outlet Size
3/4" MNPT
3/4" MNPT
3/4" MNPT
1.5" Tri-Clamp
1.5" Tri-Clamp
External Dimensions
25.2" × 18.1" × 37.0"
28" × 19.7" × 43.3"
35" × 22.5" × 40"
36.2" × 25.6" × 44"
48" × 31.5" × 50.8"
Weight
117 lbs
155 lbs
250 lbs
340 lbs
633 lbs
1 Year
1 Year
1 Year
1 Year
Jacketed Reactors Chemical Sciences Analytical Instruments Academic & Research
FAQ
What applications fit the CRH series?
The CRH Heaters are ideal for jacketed reactors, columns, solvent tanks, vacuum systems, and analytical instruments requiring stable, high-temperature circulation up to 300°C.
What fluid should I use?
Use silicone oil only with the CRH Heaters for proper viscosity, stability, and safety at elevated temperatures.
Is 208V power supported?
No. CRH Heaters are not compatible with 208V inputs. Acceptable supply range is 219–253V per the model’s single- or three-phase requirements.
Can the unit run continuously?
The CRH Heaters are not intended for 24-hour continuous operation. Maximum recommended continuous runtime is 16 hours.
How do I choose the right size?
Match the heat load of your reactor/column to the model’s wattage and pump flow. For larger vessels or rapid ramp/hold at 200–300°C, consider CRH-200L or CRH-300L ; for benchtop and smaller reactors, CRH-30L(v2) or CRH-50L(v2) are excellent choices.
Specifications
Temperature Range:
RT to 300°C
Temperature Accuracy:
+/- 1°C
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Frequently asked questions
What sizes are available?+
Five: 30 L (6 kW), 50 L (9 kW), 100 L (18 kW), 200 L (27 kW) and 300 L (36 kW).
What is the maximum temperature?+
300 °C.
What fluid does it circulate?+
Silicone oil.
Why closed loop rather than open loop?+
USA Lab specify that the sealed circuit maximises thermal transfer and temperature uniformity while minimising fluid loss.
What can it be paired with?+
USA Lab list vacuum systems, jacketed reactors, columns and solvent tanks.
