A clear RFQ helps the supplier quote the right high pressure lab reactor faster.
Many buyers ask Hjchem “We need a 100 mL high pressure reactor. Please quote.” This is not enough. Reactor price and design depend on pressure, temperature, material, stirring method, gas handling, safety devices, control level, and application details.
This high pressure reactor quotation guide gives a practical checklist for who want an accurate and useful quotation.
For more information about lab pressure vessel selection, we can start with the high pressure reactor guide.
Why a clear RFQ matters
A lab pressure reactor RFQ checklist helps avoid:
- wrong vessel size
- wrong pressure rating
- wrong material
- weak stirring configuration
- missing gas inlet or vent
- unsuitable seal type
- unclear safety design
- repeated quotation revisions
- cost changes after technical review
Even small lab pressure reactors require customization if the process involves gas, corrosive media, electrochemistry, slurry, or special temperature control.
Basic pressure reactor information
Start with the basic reactor size and working conditions.
| RFQ item | What to provide |
|---|---|
| Vessel volume | Total reactor volume, such as 10ml, 25ml, 50 mL, 100 mL, 250 mL, 500 mL… |
| Working volume | Actual volume used per batch |
| Working pressure | Normal operating pressure |
| Maximum pressure | Highest possible pressure during operation |
| Working temperature | Normal operating temperature |
| Maximum temperature | Highest required temperature |
| Operation mode | Batch, semi-batch, gas charging, liquid feeding, or other mode |
Do not only provide vessel volume. A 100 mL reactor for 10 bar and a 100 mL reactor for 100 bar are not the same system.
Reaction and application details
What the lab pressure reactor will actually do?
Useful application descriptions include:
- hydrogenation
- oxidation
- CO₂ reaction
- polymerization
- catalyst screening
- corrosion testing
- hydrothermal synthesis
- electrochemical reaction
- photochemical reaction
- gas-liquid reaction
- slurry reaction
This helps the supplier understand whether the request is a standard laboratory autoclave reactor inquiry or a more customized pressure reaction system.
If the process is gas-involved, link naturally to stirred autoclave for gas-liquid reactions. If the process is mainly screening, see the parallel pressure reactor guide.
Material and corrosion information
Material selection can change both price and lead time.
The RFQ should include:
- liquid media
- gas type
- solvent
- acid or base
- concentration
- chloride content
- water content
- cleaning chemicals
- expected corrosion risk
- whether 316L is acceptable
- whether special alloy is required
For many lab systems, 316L is a common starting material. But if the process involves hydrochloric acid, chloride-rich acidic media, strong acids, high temperature corrosion, or aggressive cleaning, the supplier needs more detail.
For this topic, users should review material selection and corrosive media before confirming the reactor material.
Gas handling requirements
Gas handling is one of the most important parts of a pressure reactor RFQ.
We should specify:
- gas type
- gas pressure
- gas source
- gas inlet requirement
- venting requirement
- purge gas
- whether gas consumption needs to be measured
- whether gas mass flow control is required
- whether backpressure control is needed
- whether the gas is flammable, toxic, corrosive, or oxidizing
For hydrogenation, CO₂ reactions, oxidation, and other gas-liquid reactions, the gas system is not a small accessory. It is part of the reactor design.
Stirring and mixing requirements
Many RFQs mention pressure and temperature but forget mixing, it has risk.
We should provide:
- stirring method
- required stirring speed
- viscosity at the start
- viscosity at the end
- solids content
- catalyst loading
- particle size
- whether slurry suspension is needed
- whether gas dispersion is important
- whether high torque is required
For simple liquid reactions, standard magnetic stirring may be enough. For high-viscosity reactions, slurry systems, catalyst suspension, or polymerization, the supplier should review reactor mixing performance, stirred autoclave torque, and magnetic drive vs mechanical seal.
A good stirred autoclave RFQ should mention viscosity and solids.
Heating and cooling requirements
Temperature control affects reactor design and quotation.
The RFQ should include:
- heating temperature
- heating rate, if important
- cooling requirement
- external circulator or built-in heating
- whether internal cooling coil is needed
- whether the reaction is exothermic
- whether emergency cooling is required
- whether condenser or reflux is required
If the reaction produces heat, the supplier needs to know. A reactor used only for heating is different from a reactor that must control a strong exothermic reaction.
Feeding, sampling, and discharge
Some lab stirred autoclave reactors only need charging before the run. Others need feeding or sampling during operation.
We should confirm:
- liquid feeding during reaction
- high-pressure feeding
- isobaric feeding
- gas feeding
- catalyst addition
- sampling under pressure
- bottom discharge
- dip tube
- condenser
- collection vessel
- filtration or separation after reaction
If feeding or sampling is needed, it should be mentioned in the first RFQ. Adding it later can change the reactor head design, valve layout, and quotation.
Parallel or single reactor?
A parallel reactor system is useful when the main goal is comparison. A single reactor is usually better when the main goal is deeper process understanding.
For this choice,we can review Parallel Pressure Reactor vs Single Pressure Reactor.
Example RFQ checklist
| Category | Information to provide |
| Application | Reaction type, purpose, research stage |
| Volume | Total volume and working volume |
| Pressure | Working pressure and maximum pressure |
| Temperature | Working temperature and maximum temperature |
| Material | Media, solvent, acid/base, chloride, cleaning chemical |
| Gas | Gas type, pressure, gas inlet, vent, purge, gas measurement |
| Stirring | Speed, torque, viscosity, solids, catalyst loading |
| Heating/cooling | Heating method, cooling need, condenser, exothermic risk |
| Feeding/sampling | Liquid feed, gas feed, sampling, bottom discharge |
| Control | Manual, touch screen, PLC, alarms, data logging |
| Safety | PRV, rupture disc, interlock, explosion-proof, ATEX |
| Power/site | Voltage, frequency, installation location |
| Quantity | One unit, parallel system, pilot system |
| Budget/timeline | Target budget, delivery expectation, shipping destination |
This table can also work as a practical pressure reactor inquiry checklist for buyers.
A simple RFQ template buyers can send
If the buyer does not know how to write the inquiry, this format is enough:
“We are looking for a high pressure lab reactor for [application]. The required vessel volume is [volume], working volume is [working volume], working pressure is [pressure], and working temperature is [temperature]. The media include [solvent/reactants/gas], and the wetted material should be [316L / Hastelloy / other / please recommend]. The reaction involves [gas / slurry / catalyst / viscosity / corrosion / feeding / sampling]. We need [manual / touch screen / PLC / data logging] control. Please recommend a suitable configuration and quotation.”
This is much better than asking only for “a lab autoclave reactor price.”
Conclusion
A good high pressure lab reactor RFQ checklist should include more than volume, pressure, and price.
The supplier needs to understand the real process: media, gas, material, stirring, safety, control, feeding, sampling, and future development goals.
A clear RFQ helps the buyer get:
- a faster quotation
- a more suitable reactor design
- fewer revisions
- fewer hidden cost changes
- better technical matching
If you are preparing an RFQ for a high pressure lab reactor, send us your application, volume, pressure, temperature, media, gas type, stirring requirement, safety needs, and control preference.
HJCHEM can help review the configuration and provide a more accurate quotation.