Chart Ferox, a.s. VTC series of cryogenic tanks are designed in accordance with the requirements for safe, easy and economical operation. Many of the features have been incorporated in close collaboration with leading industrial gas companies.

VTC series tanks are vertical, stationary, pressure vessels with perlite insulation for long term storage of cryogenic liquified gases like CO2, N2O under pressure.

VTC series are available in capacities from 4,000 to 67,000 liters with pressures of 25 bar.

• in accordance with EN 13458 and conforming to directive 97/23/EC (PED)
• fine grain / low temperature carbon steel inner vessel
• 4 legs design
• easy lifting and low cost erection using a single crane
• bolted bonnet globe valves with stainless steel bodies
• high performance PBU with optional electrical heater as PBU
• easily accessible relief valves with outlets directed away from the operating area
• with durable environmentally friendly coating for industrial standards

Type		VTC4	VTC7	VTC10	VTC12	VTC17	VTC22	VTC27	VTC23	VTC33	VTC43	VTC36	VTC52	VTC60	VTC67
Gross volume	Liters	4120	7270	10430	11630	16610	21590	26570	22920	33080	43240	36130	51700	59430	67270
Net capacity (95% filling)*	Liters	3910	6910	9910	11050	15780	20510	25240	21770	31430	41080	34320	49120	56460	63910
LN2O	kg	4340	7300	10470	11670	16670	21660	26600	23000	33190	43380	36250	51870	59630	67490
LCO2**	kg	4330	7640	10960	12220	17450	22680	27910	24070	34740	45410	37950	54300	62410	70650
Daily evaporation rate LCO2*** 25 barg	%/d	0,18	0,14	0,12	0,12	0,10	0,09	0,08	0,07	0,06	0,05	0,06	0,05	0,05	0,04
Max. withdrawal rate LCO2****	kg/h	115			140				160			205
Max. withdrawal rate LCO2*****	kg/h	1180			1180				1180			1180
Weight, empty 25 barg	kg	2980	4320	5750	6440	8310	10160	12150	11580	14010	16460	15490	18580		24900
Diameter (D)	mm	1800			2100				2500			3000
Overall width (A)	mm	2000			2100				2500			3000
Overall depth (B)	mm	2150			2350				2800			3280
Height (H)******	mm	4030	5840	7650	6430	8430	10430	12430	8610	11610	14610	8890	11890	13390	14950

Notes:
* Filling 95% (equillibrium state at 1,013 bar).
** Filling 95% (equillibrium state at 10 bar).
*** based on pressure EN12213 (100 kPa and 15°C ambient temperature).
**** Stated withdrawal rates are with the standard flat fin PBU vaporizer at tank pressure 15 barg and 10°C.
Stated withdrawal rates are for short term withdrawal (up to 3 hrs) at tank pressure 10 barg.
*****optionally in case of higher withdrawals of CO₂, electric vaporizer needed to be ordered, rate is for 4 kW.
******Tanks with extended legs (for filling station) are app. 790 mm higher.

Basic Dimensions

Nomenclature *
C1	Fill connection
C2	Gas return connection
GR	Gas return valve
LI	Level indicator
PBU	Pressure building vaporizer
PI	Pressure indicator
RG1	Pressure building regulator
S1	Safety valves, inner vessel
S2	Vacuum safety valve
S3	Thermal relief valve, PB circuit
S4	Thermal relief valve
V1	Bottom fill valve
V3	Isolation valve, bottom filling
V4	Valve, PB outlet
V5	Valve, vapor vent, gas outlet
v6	Valve, trycock
V9	Valve, liquid outlet
V12	Vacuum pump down
V14	Valve, safety relief section
V50	Valve, LI vapor phase
V51	Valve, LI liquid phase
V52	Valve, LI equalization

* standard model - not all options shown