Used Cooling Tunnel for sale (8,319)

Condition: excellent (used), Year of construction: 2007, WITH SHRINK TUNNEL & VIDEOJET Speed: max. up to 10,000 cycles/hour Formats (mm): min. 105 x 148 // max. 250 x 340 Laodev D If Dspfx Affjk Thickness: min. 2 mm, max. 25 mm Counter: 26 million Equipment / Additional information: Processing with film -PE-, PP-, OPP- and PVC-film -Foil thickness min.: 20 my -Film thickness max.: 50 my -Film overlap min.: 30 mm Machine consists of: 1x Autoloader 1x Sliding feeder (for thicker products) 6x Rotary suction feeder 1x Cavalo feeder (landscape format) 1x Welding device (lengthwise & crosswise welding) 1x Videojet addresser 1x Shrink tunnel

Year of construction: 2013, condition: used, NH3 refrigeration system for cooling glycol and brewing water, consisting of the following components: - NH3 separator brewing water 890 l (T0 = -0.5°C) - NH3 separator glycol 647 l (T0 = -6 °C) - 3 x piston compressors (Bitzer type W4GA) - 2 x brewing water pumps - Plate heat exchanger as brewing water cooler Q0 = 200 kW - Evaporation condenser - Water tank approx. 470 hl - Glycol tank 80 hl + 2 x glycol pump - Plate heat exchanger as glycol cooler Q0 = 100 kW - High pressure collecting vessel 830 l - Danfoss frequency inverter type VLT HVAC Lsdpfjxbpamjx Affsak Additional title: NH3 Cooling plant Cooling capacity Q0 brew water: 200 kW Cooling capacity Q0 glycol: 100 kW Evapotation temperature t0 brew water cooling: 0 °C Evaporation temperature t0 glycol cooling: -6 °C Current: 185 A / 250 A Features: 2 x NH3 separators (t0 = -0.5 °C; t0 = -6 °C); 3 x piston compressors; 2 x brewing water pumps; water cooler Q0 = 200 kW; evaporation condenser; water basin; high-pressure collection vessel; glycol tank + 2 x glycol pump; Glycol cooler Q0 = 100 kW; Danfoss frequency inverter type VLT HVAC

Condition: used, This listing is for the Cole Palmer Techne Blockice Cooling Heating Block The unit is in full working condition and is ready for immediate use The Cole Palmer Techne BLoCKICE (also referred to as CB-200, FBLOCKICE) is a benchtop Peltier-cooled/heated block designed for precise incubation of sample tubes between 0 °C and 40 °C, ideal for maintaining biological samples within the 4–37 °C range Precise temperature control: Utilizes Isotemp™ technology to ensure uniform temperature across both aluminum blocks, with stability to ±0.2 °C Versatile block inserts: Holds two standard interchangeable aluminum insert blocks from the Dri‑Block® range; can use one double-width insert for higher tube volumes Timer & alert system: Integrated count-up/count-down timer programmable up to 9 days. Timer begins only once the set temperature is achieved, with an audible buzzer at completion User-friendly interface: Features a five-digit LED display in °C or °F, plus a dark lid to protect light-sensitive reagents and help maintain temperature Laedpfjxhfypjx Affok Dimensions & build: Compact footprint (~190 mm × 240 mm × 225 mm), weighing ~3 kg, operating on 100–230 V AC, 50/60 Hz Performance notes: Achieves 4 °C within ~30 minutes at 20 °C ambient; reaching extremes like 0 °C or 40 °C may take hours, although pre-cooling inserts can accelerate that

Condition: ready for operation (used), Refrigerant compressors system Bitzer Type: HSK 6461-60-40P (x3) Volume: 165 m3/h (x3) Ljdpfx Ajtqcqaoffsak Cooling capacity for R404A: 426 kW at 0°C/40°C, 351 kW at -5°C/40°C, 287 kW at -10°C/40°C, 185 kW at -20°C/40°C Dimensions: 3550 x 1050 x 1880 mm Refrigerant tank in set Items in magazine: 2 Reference number: Z77 Condition: Used in good condition

Condition: ready for operation (used), Year of construction: 2022, total length: 1,800 mm, product height (max.): 400 mm, product width (max.): 120 mm, input voltage: 220 V, SHOWROOM machine, the machine advertised was never delivered and was only used for test purposes. In the pictures, the steam tunnel is switched on for test purposes. alpha-pack SST-1500 steam tunnel Technical details: -even steam distribution through low-pressure steam drum Ledpst A Ar Ejfx Affjak -height-adjustable steam steel pipes -adjustable steam output -can optionally be combined with conveyor belt and sleeve label machine Steam tunnels are particularly suitable for shrinking heat-shrinkable film sleeves on all types of products (glasses, PET bottles, glass bottles, cans and much more). Our steam tunnels are easy to use and the cost-effective alternative to conventional shrink tunnels that are based on electric heaters.

Condition: good (used), Rehsler TW HL4006D Refrigeration System Voltage: 400 V Rated power: 11 kW Current consumption: 18 A Protection class: IP54 Operating pressure: 10 bar Minimum ambient temperature: 5°C Maximum ambient temperature: 43°C Find more items – new and used – in our shop! Lodpexg Hmnsfx Affeak International shipping costs on request!

Condition: new, Year of construction: 2012, The refrigeration unit is in new condition. Laodsmmdq Tepfx Affsk Weight: 400 kg Height: 205 cm width: 130 cm Depth: 65 cm

Year of construction: 2009, condition: used, NH3 refrigeration system. Refrigeration system includes the following: - Compressor 1, GEA Grasso type OS3 - Compressor 2, GEA Grasso type OS3 - NH3 separator - Air condenser - Heat exchanger for energy recovery with pump - 2 x ice water pumps - Brewing water pump - 2 water coolers - Expansion tank with control cabinet for NH3 separator and compressors 1 and 2, with SIMATIC MULTI PANEL touch control Additional title: refrigerant ammonia Brew water flow: 5 m3/h 2 bar Ice water flow: 15 m3/h 2 bar Refrigerant capacity: 85 kg Ammonia Ljdpfx Asxbn Upeffsak Compressor capacity: 145 m³/h Power: Q0: 2 x 119 kW Operation / Control: Siemens S7 Features: 2 x compressors: 145 m³/h, 26 kW with Frequency Converter, 37 kW nominal output; ammonia separator mounted on frame, with brewing water-cooler and ice water-cooler; air condenser on frame 3 x 2.95 kW; heat-exchanger for recovery with pump; 2 x ice water pumps ( 2.2 kW, 15 m3/h, 2 bar ); brewing water pump ( 1.1 kW, 5 m3/h, 2 bar ); expansion tank, max. permissible operating pressure: high pressure side: 22 bar, low pressure side: 16 bar

Condition: used, mileage: 300,967 km, power: 184 kW (250.17 HP), first registration: 01/2017, fuel type: diesel, tire size: 265/70R19.5, axle configuration: 4x2, wheelbase: 5,900 mm, fuel: diesel, brakes: engine braking, color: white, gearing type: automatic, emission class: euro6, suspension: steel-air, loading space length: 8,200 mm, loading space width: 2,500 mm, loading space height: 2,200 mm, Year of construction: 2017, Equipment: air conditioning, cruise control, spoiler, tail-lift, = Additional Options and Accessories = - AdBlue System - Roof Spoiler - Electrically Folding Exterior Mirrors - Electric Windows - Radio - Sun Visor - Toolbox = Remarks = Electro-cooling, 2 compartments, Zepro taillift. Lsdpfxev Nhiys Affoak = Additional Information = Technical Information Number of Cylinders: 4 Drivetrain AdBlue System: Yes Axle Configuration Tire Size: 265/70R19.5 Front Axle: Steered; Left Tire Profile: 75%; Right Tire Profile: 75%; Brakes: Disc Brakes; Suspension: Leaf Spring Rear Axle: Dual Tires; Left Tire Profile: 75%; Left Tire Profile: 75%; Right Tire Profile: 75%; Suspension: Air suspension Weights Curb weight: 9,265 kg Payload: 2,725 kg GVW: 11,990 kg Functional Tail lift: Zepro Identification Type number: FL250 / 4X2 / ELECTRO-COOLING / = Company information = ALL PRICES ARE NET FOR EXPORT, Joris Versteijnen (NL-DE-GB), Wouter Greutink (NL-DE-GB-ES-IT), We make every effort to provide correct information, but no rights can be derived from the posted texts.

Condition: excellent (used), Cooling compressors set Bitzer -Type: 4VHC-10K-40P (x4) -Volume: 28.9 m3/h (x4) - Refrigerant: CO2 -Refrigerant tank and control panel in set -Cooling capacity for CO2: 328 kW at -25°C/40°C, 267 kW at -30°C/40°C -Dimensions: 3400 x 1600 x 2200 mm -Control panel dimensions: 2520 x 500 x 2270 mm Lajdpfx Aovb T R Heffsk -Items in magazine: 1 -Reference number: Z95 -Condition: Used in good condtion

Condition: used, Year of construction: 2010, functionality: fully functional, Well-maintained Octofrost IQF 7/2 LH tunnel freezer operating on ammonia (NH3). IQF stands for Individually Quick Freezing, specially designed for rapid freezing of small food items. This process helps to prevent ice crystal formation in the structure of products such as vegetables, berries, cheese, meat, and fish. The freezer is complete with infeed/outfeed, control panels, evaporators, and a Siemens Simatic panel control system. Of course, we can also supply other refrigeration technology, such as compressors and condensers. Please feel free to contact us for more information! Products are placed onto the infeed conveyor at a height of approximately 1560 mm. The products are then transported through the Octofrost via a vibratory belt. The belt features a drop section to separate products and remove excess external ice. The belt is approximately 8100 mm long and 850 mm wide. Once the product is frozen to the correct core temperature, it exits at a height of 1250 mm. The freezer has three inspection hatches for checking product quality while it is on the belt. The OctoFrost is equipped with two NH3 evaporators, ensuring products are frozen to the desired core temperature of -18°C. There are 7 centrifugal fans, each directly driven by an ABB M3AA 132 MB electric motor, specified as: 50 Hz - 11 kW - 1450 rpm - 630 mm diameter. These fans blow air from below through holes in the belt, preventing products from freezing onto the belt. The side panel is extendable for easy inspection and cleaning of the evaporators and fans as needed. Additionally, the Octofrost comes with the corresponding control cabinet, which features 7 ABB frequency inverters for the conveyors, 3 Key Technology MFS 268 XL frequency inverters for belt vibration, and a Siemens panel for freezer controls. The IQF tunnel freezer has the following dimensions: 8100x3000x3250 mm (LxWxH) Effective belt length: 8100 mm Effective belt width: 850 mm Infeed height: 1560 mm Outfeed height: 1250 mm Ljdpfx Afoxgcvxsfjak Tunnel freezer performance specifications: Product: Green peas Capacity: 3,600 kg/h Infeed temperature: +10°C Outfeed temperature: -18°C Evaporation temperature: -40°C Product: Cauliflower Capacity: 2,520 kg/h Infeed temperature: +10°C Outfeed temperature: -18°C Evaporation temperature: -40°C Piece size: 25 to 40 mm Product: Tomatoes Capacity: 1,440 kg/h Infeed temperature: +10°C Outfeed temperature: -18°C Evaporation temperature: -40°C Piece size: approx. 30 mm Product: Strawberries Capacity: 2,520 kg/h Infeed temperature: +10°C Outfeed temperature: -18°C Evaporation temperature: -40°C Piece size: 25 to 35 mm Product: Potatoes Capacity: 1,800 kg/h Infeed temperature: +10°C Outfeed temperature: -18°C Evaporation temperature: -40°C Piece size: approx. 25 mm Product: Meat Capacity: 2,340 kg/h Infeed temperature: -3°C Outfeed temperature: -18°C Evaporation temperature: -40°C Piece size: 20 mm cubes Do you want more information or have any questions? Feel free to contact us—we are happy to assist you! *Why choose HOS BV? We are not only the largest specialist in used refrigeration technology in Europe, but we only deliver after thorough testing and industrial cleaning. If desired, we can also handle your logistics.

Condition: like new (used), FTNON Sanitiser tunnel Serial: 330188 Stainless sanitiser tunnel, variable speed, forward / reverse, top mounted jets, side inspection door, conveyor dimensions 3500mm x 300mm, max tray 550mm W x 490mm H, 3Ph Laodpjlpbgwefx Affok

Condition: as good as new (ex-display), functionality: fully functional, machine/vehicle number: 0M001224, Le compresseur Frascold Q Series Q5-28.1E est une solution fiable et efficace pour diverses applications industrielles et commerciales. Conçu avec une ingénierie de précision, ce compresseur offre des performances et une durabilité exceptionnelles. Que vous en ayez besoin pour la réfrigération, la climatisation ou d'autres systèmes de refroidissement, le Q5-28.1E garantit des résultats constants. ➢Points forts du produit : Options de tension polyvalentes : Le Q5-28.1E est compatible avec différentes configurations de tension, notamment 220 v-240 v/380 v-420 v/3 phases/50 hz et 265 v-290 v/440 v-480 v/3 phases/60 hz. Cette flexibilité garantit une intégration parfaite dans votre installation existante. Construction robuste : avec un poids net de 79 kg, le Q5-28.1E est robuste et conçu pour résister aux environnements exigeants. La construction robuste garantit une longue durée de vie et un fonctionnement fiable. Dimensions compactes : Avec des dimensions de 449 mm (L) x 286 mm (l) x 328 mm (H), ce compresseur est peu encombrant. Il s'intègre dans les petits espaces sans compromettre les performances. ➢Spécifications : Frascold Q Series Q5-28.1E compressor comes with: Voltage: 220v-240v/380v-420v/3ph/50hz - 265v-290v/440v-480v/3ph/60hz Net Weight: 79kg Laedpfxjr Id T Aj Affjk Dimensions: 449 (L) x 286 (W) x 328 (H) The Frascold Q Series Q5-28.1E compressor combines versatility, durability and a compact design, making it an excellent choice for your refrigeration system. Whether you're upgrading an existing system or starting a new project, this compressor delivers exceptional performance. Rely on Frascold's reputation for quality and reliability.

Condition: used, Year of construction: 2001, Additional title: coolant glycol Max. working overspressure: 28 bar Max. filling weight: 100 kg ca. 2x 50kg Content: 30 l Voltage: 400 V operating voltage, 230 V control voltage Ledow Uvbxopfx Affjak Frequency: 50 Hz Features: condensator with 4 fans on a steel frame, 2 x glycol pump 2 x Verdichter (max. Fördervol 133,5 m3/h, Drehzahl 1750 1/min), 2 x PWT (Mindesttemp. -150°C, Höchsttemp: 204/125°C), glycol tank

Year of construction: 2008, condition: used, functionality: fully functional, We are selling used tunnel carwash machine with soft brushes. max washing high 2,2 m Lenght of conveyor 17,2 m Ljdpoxd Anpefx Affjak

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, Complete Ammonia Refrigeration Installation: Type: Reciprocating Compressor Refrigeration System V1 412 E and VF 612 E Year of manufacture: 2008 Cooling capacity: 760 kW Refrigerant: Ammonia NH3 / R717 Permissible operating pressure: low-pressure side -1/12 bar, high-pressure side -1/17 bar The cooling installation comprises: - 2 GEA Grasso reciprocating refrigeration compressors, consisting of: (1x) Grasso 612E package and (1x) Grasso 412E package - EM Polar pressure vessel, type: DM1600 - Kühlturm GmbH evaporative condenser, type: KIV 2/12-28-12, 2 - Switchgear and control cabinets (2 units) - 3 pallets with valves, plus additional spare parts Grasso 612E package: - 1 unit Grasso/GEA piston compressor, type 612E - Leroy Somer electric motor, 200 kW / 1468 RPM - Dimensions: 3200 mm x 1900 mm x 2150 mm - Cooling capacity: 418.5 kW at -10°C / +40°C - Year of manufacture: 2008 Grasso 412E package: - 1 unit Grasso/GEA piston compressor, type 412E - Leroy Somer electric motor, 132 kW / 1468 RPM - Dimensions: 3200 mm x 1900 mm x 2150 mm - Cooling capacity: 325 kW at -10°C / +40°C - Year of manufacture: 2008 EM Polar pressure vessel: - 1 unit EM Polar pressure vessel, type DM1600 - Capacity: 9580 liters - Dimensions: 5200 mm x 1650 mm x 1900 mm - Empty weight: 2400 kg - Year of manufacture: 2008 Laedpfx Afsxg Ruijfok Kühlturm GmbH evaporative condenser: - 1 unit evaporative condenser, type KIV 2/12-28-12, 2 - Dimensions (two parts): 6900 mm x 2500 mm x 2500 mm and 3200 mm x 2500 mm x 2150 mm - Cooling capacity: 1098 kW - Year of manufacture: 2008 Further information available on request.

Condition: good (used), Year of construction: 2000, Switch cabinet cooling unit, switch cabinet air conditioner, distribution cabinet, heat exchanger, wall-mounted cooling unit, switch cabinet cooler Lodpfx Afjwcb Dpjfjak -Manufacturer: Siemens, control cabinet cooling unit from CNC milling machine MAHO MH 800C -Type: K1000 -Voltage: 230V -Power consumption: 700 W -Dimensions: 155/1100/H455 mm -Weight: 48 kg

Condition: excellent (used), 138 USED KOMA Refrigerator/Proofer. Power: 6.6 kW. EXTERNAL DIMENSIONS (in cm): - Width 137, - Depth 243, - Height 245. INTERNAL DIMENSIONS (in cm): - Width 85, - Depth 210, - Height 200. The device is available to verify in our warehouse (36-068 Bachórz, Poland). Paid options available: renovation / transport / assembly / commissioning of the device. The price is a net price per 1 pcs. Our languages: ENGLISH, FRENCH, GERMAN, RUSSIAN, UKRAINIAN. Ledpfxoxdah Te Affsak We have a lot of baking ovens in our warehouses: batch oven, shelf oven, rotary oven, trolley oven, gas, oil, electric, from various manufacturers. We also offer bakery machines, bakery equipment, roll lines, and bread lines. If you want to see our full current offer, visit our Bakeres profile.

Condition: as good as new (ex-display), functionality: fully functional, machine/vehicle number: 0G000072, The Frascold Q5-21.1Y compressor is a reliable, high-performance solution for a variety of industrial and commercial applications. With an impressive flow rate of 21.18 m3/h, this compressor guarantees efficient cooling and refrigeration processes. Whether you work in HVAC, cold storage or food processing, the Frascold Q5-21.1Y delivers exceptional performance. ➢Product highlights: ✓Powerful performance: The Q5-21.1Y boasts a maximum power consumption of 6.6 kW, making it a suitable choice for demanding applications. Ledpsr Id Tqsfx Affjak ✓Optimal Oil Management: With a 1.6-liter oil charge, this compressor ensures smooth operation and long service life. ✓Rugged construction: the Q5-21.1Y is built to last, with dimensions of 449 mm x 286 mm x 325 mm and a weight of 79 kg. Its solid design stands up to the rigors of industrial environments. ✓Versatile connections: The suction connection is 1 1/8", and the flow is 3/4", allowing easy integration into existing systems. ➢Specifications: Compressor Frascold Q5-21.1Y, discharge: 21.18 m3/h, maximum power consumption: 6.6 kW, oil charge: 1.6 l, connection: suction 1 1/8 inch, discharge 3/4 inch, dimensions (length x width x height) 449 x 286 x 325 mm, weight: 79 kg` Price without VAT.

Condition: used, Spraying the full product with cold water to cool it down to approx. 40 °C. Allows clean labelling and creates a vacuum in the bottle. With cooling tower for recooling the spray water from the tunnel cooler with recirculation. Additional title: full product cooler, with splash water recooling Capacity of filling line: 5000 bo/h Features: Cooling tower for spray water recooling with circulation (Richter Cooling Systems, 2015) Lsdpsw Tmpdjfx Affsak

Condition: like new (used), Year of construction: 2007, operating hours: 1 h, functionality: fully functional, machine/vehicle number: 1, overall weight: 30,000 kg, type of input current: three-phase, temperature: 4 °C, power: 10 kW (13.60 HP), Equipment: documentation/manual, Fully working machine Laodpfewmr Ugsx Affsk

Condition: used, Scanico Freezing Tunnel -Year of manufacture: 2017 -Freezing capacity: 50kW -External dimensions: 4100 x 3250 x 3200 mm -Belt width: 2 x 600 mm -Belt length: 4100 mm -Separate belt control possible Lasdpfx Aexfivcsffok -Refrigerant: R449A-freon -Maximum product height: 150 mm -Condition: Used in very good condition, ready to work -Technical documentation and manual available Refrigeration compressors system Bitzer -Type: S6F-30.2Y-40P (x4) -Volume: 101.4 m3/h (x4) -Cooling capacity for R404A: 165.6 kW at -25°C/40°C, 142.8 kW at -30°C/40°C, 101.2 kW at -40°C/40°C -Dimensions: 3150 x 1170 x 1920 mm -Condition: Used in very good condition, ready to work LUVE Condenser -Type: LMC6F 3542 V/H EC -Cooling capacity: 247.2 kW -Number of fans: 4 x 630 mm -Dimensions: 5400 x 1110 x 1250 mm -Condition: In very good condition, fans tested, under nitrogen pressure

Condition: like new (used), Year of construction: 2025, functionality: fully functional, A bestseller among bakery equipment – cooling and proofing chamber with stackable tray storage system CTS. The system is an innovative Ice Cool solution, based on adjustable, uniform air movement throughout the chamber via centrally placed tray stacks, eliminating the need for additional suction stations. CTS operates within a temperature range of -10/+15°C, providing optimal conditions for direct dough processing without a shock freezer or suction station. The CTS chamber maintains a climate that does not require additional humidification and protects products from drying out in ambient conditions. The result is healthier products that, after baking, are crispy, have a beautiful shine, and retain long-lasting freshness. Chamber Installation type: CoolProofer Temperature range: -10°C to +15°C Model: CTS 300.320.252/ELRR-2LC47 Insulation value: 0.19 W/m2K Insulation: 100 mm PU sandwich panels External dimensions: 320 cm width x 340 cm length x 272 cm height Internal dimensions: 300 cm width x 320 cm length x 252 cm height Internal walls and ceiling: Stainless steel walls and ceiling Lowered (white, insulated) ceiling with one stainless steel air duct wall External walls: Stainless steel, linen structure, ceiling made from galvanized plate, coated with food-grade paint Floor: 100 mm PU insulation, stainless steel tray construction bonded over the entire load-distribution plate, Doors: 1 x swing door 90 x 200 with modern hygienic magnetic closing system, doors inside and outside in stainless steel Lighting: Energy-efficient LED lighting with integrated automatic switching Technology Compressor: Energy-saving "Bitzer" 5 HP compressor, with high COP (Coefficient of Performance) Noise reduction: NorWep enclosure, noise reduction for compressor, suitable for outdoor installation. Condenser: Extra-large heat exchanger for high ambient temperatures and low energy consumption Evaporator: Type 2xLC47 with aluminum housing, white finish and epoxy coating for acid resistance, equipped with electronic expansion valves Refrigerant: (Low-GWP 146) R-455 Refrigeration installation: 15 m pipework to compressor, 5 m to condenser Control: Large, ultra-modern 12" computer touchscreen control with integrated HACCP data logger and graphical chart display. Includes network functionality and fault alerts via e-mail. Connected load: 8.8 kW, 3x400V+N+PE, 50 Hz. This is the connection load – actual energy consumption is significantly lower. Lsdpfx Asxb Uylsffoak

Condition: used, Length: ca. 2.6 m Width: ca. 1.7 m Height: ca. 2.3 m Lajdpfx Aow Tmlleffsk Features: Cooling unit (Technobloc, type: ACN050U, output: 0.7 kW, refrigerant: R404a)

Year of construction: 2017, condition: used, Scanico Freezing Tunnel -Year of manufacture: 2017 -Freezing capacity: 50kW -External dimensions: 4100 x 3250 x 3200 mm -Belt width: 2 x 600 mm -Belt length: 4100 mm -Separate belt control possible -Refrigerant: R449A-freon -Maximum product height: 150 mm -Condition: Used in very good condition, ready to work -Technical documentation and manual available Refrigeration compressors system Bitzer -Type: S6F-30.2Y-40P (x4) -Volume: 101.4 m3/h (x4) Lasdpfxjxd Ucxj Affsk -Cooling capacity for R404A: 165.6 kW at -25°C/40°C, 142.8 kW at -30°C/40°C, 101.2 kW at -40°C/40°C -Dimensions: 3150 x 1170 x 1920 mm -Condition: Used in very good condition, ready to work LUVE Condenser -Type: LMC6F 3542 V/H EC -Cooling capacity: 247.2 kW -Number of fans: 4 x 630 mm -Dimensions: 5400 x 1110 x 1250 mm -Condition: In very good condition, fans tested, under nitrogen pressure