Description

USA Lab CRH Closed-Loop Silicone Oil Heaters | Up to 300°C

Introducing the USA Lab 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.

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Resources & Downloads

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.

Talk to an expert

Get sizing help, SOP guidance, and integration tips for your lab.

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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
Warranty	1 Year	1 Year	1 Year	1 Year	1 Year

Popular Industries & Use Cases

Jacketed Reactors Chemical Sciences Analytical Instruments Academic & Research

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Custom Solutions

Tailored tanks, skids, and integration help.

Custom Request Consulting

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FAQ

What applications fit the CRH series?

The USA Lab 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 USA Lab CRH Heaters for proper viscosity, stability, and safety at elevated temperatures.

Is 208V power supported?

No. USA Lab 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 USA Lab 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.