general used for sale

750 MW each, UNUSED Gas Based Complete Combined Cycle Power Plants 2 units available Technical Specifications: The Project Details: 1. EACH module has two Gas turbines GE 9FA.03 (DLN2+) and one Steam turbine GE D11. Each GT exhaust is directed to the triple pressure unfired, natural circulation horizontal, type CMI USA HRSG. This configuration helps turndown operation of station up to 45%. 2. The Station is based on robust design of GE Gas Turbine with high efficiency DLN2+ Dry low Nox system, each GT is site rated for an output of 235 MW and the triple pressure reheat GE D11 Steam Turbine with downstream Exhaust, is site rated at 266 MW. The HRSG is a Triple pressure, Natural circulation, Horizontal design type with Deaerator atop the LP drum. Thus Net Combined cycle efficiency at Site condition is approx 57% on LHV basis. The inherent design of the gas turbine reduced the N ...

Used GSP 55 EVO BB flowpack. Manufacturer: General System Pack Year of manufacturing 2019. Production speed: Up to 150 ppm The GSP 55 EVO BB horizontal packaging machine is the result of evolution and many years of experience in the field of horizontal product packaging. It is an electronic, multifunctional and solid machine. Extremely flexible when it comes to changing formats, adapted to packing products in both unit and multipack packaging. The machine is distinguished by its simple design as well as ease of maintenance and safety. Packaging Pillow, PillowBag, Tray, Pillow with Euro hanger Products: cookies, bread, cake, crisps, chips, chocolate, vegetables, tomatoes, fruit, wafers, trays, electrical contacts, plugs, extension cord, furniture accessories, crayons, eyeliner, pens, advertising materials, candles, cloths, sponges, tablecloth, pendants fragrances, dog colla ...

GE Äkta Explorer FPLC 100 Air/General Electric/Cytiva -Box 900 -pH/C 900 monitor -UV 900 UV Detector -UV Flow Cell -P 900 Pump /100ml/min w. Switch Valves Air 900 Control Box -pH Sample -Conductivity Cell -INV 907 Injection V1 Sample Valve V5 Outlet Valve V4 Column Valve V2 Column Valve V 3 -P 960 -M 925 MIxer (2ml) on request 5 and 12 ml) FR 902 Restrictor CU-950 Interface Unicorn Software -Frac 950 Faction Collector warranty

Description: Plasma + oxygas type CNC very little used cutting thickness: plasma- 20mm, Oxy- 100 mm from the side, but without penetrating the board. useful strokes: 2000 x 6000 x 100 mm solid frame made of steel profiles linear guides ISEL Germany drive with pinion-rack system rotary encoder servomotors on all axes General Numerical CNC specialized for plasma cutting hypertherm powermax 105 plasma generator automatic pistol with anti-collision protection automatic THC database with optimal processing parameters CE compliant machine FastCAM professional software – including nesting Hypertherm Powermax 105 source dimensions: exhaustor 700 x 700 x 2500 mm dimensions: plasma 6500 x 3500 x 1900 mm weight: 4000 kg Please take a look at videos of this machine! plate thickness: 20 mm, weight approx.: 4,000 kg, Approx. Onsite Dimension. (l x w x h): 6,500 x 3,500 x 2,500  ...

Key data: 100

Extruder 2 spindles: 100 mm Ø, 21 L/D, brand: Industrie Generali, model: CGB 100, engine: 84.7 Kw, degasser, vacuum pump, head and overhead cutting to air. Electrical panel.

See PDF attached

Control panel fire alarm center GE-1X-F2-04 for sale, with original packaging

GE Äkta Purifier 10 FPLC System Box 900 P 900 Pump /10 ml pump heads UPC 900 Monitor INV 907 Valve M925 Mixer / 6 ml mixing chamber Conductivity Flow Cell pH Sample CU 950 Interface/Communication Module FRAC 920 Fraction Collector Unicorn Software

Web Width: 1250 mm // Material Type: PET BOPP, CPP, LDPE, NYLON, UPVC, PAPER

GE MS5000P Nominal Pot 20.000kw each , 1600 work hours

GE LM 2500 gas turbines 2 pcs available Power:24.000 Hp each Average working hours 1700 hours

GE/Amersham Äkta Pilot prep. FPLC; Software Unicorn 5.2, further information on request

approx. 50 bays of general cargo flow rack / provision rack for crates or cardboard boxes etc., SSI Schaefer – used – : Price per field ex site: only 395.-€ (net) dismantled, packed and loaded! Price per field: only 350.-€ (net) dismantled, packed and loaded! Manufacturer: SSI Schaefer Type: Flow rack DR2 Year of construction: 2002 Storage according to FIFO principle (First In – First Out) Max. shelf load: 240kg at bay width: 1.056mm 480kg at bay width: 1.944mm Max. Field Load: 960kg at bay width: 1.056mm 1.920kg at bay width: 1.944mm 4 levels Shelf dimensions: Depth: approx. 2.90m Height: approx. 2.47m Field width: mainly 1.944mm Field width: 1,056mm – approx. 16 bays of the 50 pieces Dimensions flow level: approx. 2.95m Condition: very good Available: from approx. Mid-January 2024 Location: Biebergemünd

Platform for general cargo conveyor S253 loadable up to 50kg from company liquidation, new and unused with clamping sleeve and chain bushings. Total 11 pieces To be purchased individually or as a whole. Dimensions W=759 x MzdK 480mm S12

From overproduction 2 pieces available Abm;approx. 3000 x 500 x 105mm Aluminum construction: Conveyor belt width incl. shaft edge 500mm PVC conveyor belt with T-30 stud 400mm pitch Shaft edge flush on both sides: 40x35mm Conveyor belt green, 2-layer particularly transversely stable endless welded with step connection antistatic due to threads in the fabric of the running side Drive: Motor approx. 0.18Kw, speed 0.5m/sec. controllable with frequency converter Connection 220/400V, 50Hz protection class IP54 Drive, motor control optional

Controls:KUKA VKRC2 edit 2005 WORKING RANGE -ROBOT-:. - capacity:500 kg - Reach:2825 mm Technical description : 6-axis Industrial Robot with payload of 500 kgs including electrical cabinet operating panel and cable

Controls:KUKA VKRC2 edit 2005 WORKING RANGE -ROBOT-:. - capacity:500 kg - Reach:2825 mm Technical description : 6-axis Industrial Robot with payload of 500 kgs including electrical cabinet operating panel and cable

Technical description : - RAPID ACTION DOOR - Height = 2000mm - Width = 1800mm

Technical description : - RAPID ACTION DOOR - Height = 2000mm - Width = 2000mm

Controls:FANUC 30iA WORKING RANGE -ROBOT-:. - capacity:170 kg - Reach:1520 mm - Number of controlled axes:6 DIMENSIONS / WEIGHTS:. - total weight approx.:800 kg

Controls:FANUC 30iA WORKING RANGE -ROBOT-:. - capacity:170 kg - Reach:1520 mm - Number of controlled axes:6 DIMENSIONS / WEIGHTS:. - total weight approx.:800 kg

WORKING RANGE -ROBOT-:. - capacity:210 kg - Reach:2700 mm

Controls:KUKA KRC 2 WORKING RANGE -ROBOT-:. - capacity:150 kg - Number of controlled axes:6 DIMENSIONS / WEIGHTS:. - total weight approx.:1285 kg

Controls:KUKA KRC 2 WORKING RANGE -ROBOT-:. - capacity:210 kg - Number of controlled axes:6 DIMENSIONS / WEIGHTS:. - total weight approx.:1267 kg

Multi-purpose hoist, grab hoist, hoist, assembly hoist, cable hoist, universal cable hoist -Manufacturer: Greifzug -Load capacity: 3200 kg -Robust aluminum housing -Incl. Rope: 16mm/17m length with safety hook -with telescopic manual lifting rod -Scope of delivery according to pictures -Weight cable: 23 kg -transport box -Weight including accessories: 90 kg

Controls:FANUC J3iC WORKING RANGE -ROBOT-:. - capacity:210 kg - Reach:2655 mm - Number of controlled axes:6 DIMENSIONS / WEIGHTS:. - total weight approx.:1240 kg Technical description : 6-axis industrial robot. Payload according to model. Including electrical cabinet operating panel and cable. More KUKA robots in quantities available i.e. # KUKA KR 150 # KUKA KR 210 # KUKA KR 240 # KUKA KR 360

Controls:FANUC J3iC WORKING RANGE -ROBOT-:. - capacity:210 kg - Reach:2655 mm - Number of controlled axes:6 DIMENSIONS / WEIGHTS:. - total weight approx.:1240 kg Technical description : 6-axis industrial robot. Payload according to model. Including electrical cabinet operating panel and cable. More KUKA robots in quantities available i.e. # KUKA KR 150 # KUKA KR 210 # KUKA KR 240 # KUKA KR 360

General Electric Power Jenbacher Type 3 J312 General Electric Power Jenbacher Type 3 J316 General Electric Power Jenbacher Type 3 J320 Orginal Part Number 6141424 / 1212197 / 369829

40m3 storage tank for AHL/ASL - steel tank used storage container 40,000 litres capacity for storage of liquid fertilizer / AHL / ASL with brand-new plastic inner shell The container corresponds to DIN 6616, has 2 saddle feet, an ascent ladder and is professionally emptied and cleaned inside. D = 2.50 m - L = approx. 8.70 m. The container receives a brand new plastic inner shell - resistant to the storage of liquid fertilizers - incl. leak warning device mounted in the protective box - see sample photo. The inner plastic sleeve has a "General Building Supervision Approval" and is therefore used for the storage of liquid fertilizer AHL nox reducing agent AUS 32 (AdBlue). The container is completely ground on the outside, re-primed and repainted in desired colour according to RAL. The price is ex works - freely charged. Delivery time = by arrangement.  ...

Liquid fertilizer / AHL / ASL - Tank tank storage tank storage tank a used storage tank 100,000 litres for storage of liquid fertilizer / AHL / ASL with a brand-new plastic inner shell. The container corresponds to DIN 6616, has 2 saddle feet, is professionally emptied and cleaned inside, incl. ladder. The container receives a brand new plastic inner shell - resistant to the storage of liquid fertilizers - incl. leak warning device mounted in the protective box - see sample photo. ASL (ammonium sulfate solution) is a sought-after liquid fertilizer used in drying plants during the drying of liquid fermentation residues and during exhaust air purification. Due to the corrosive properties of the bearing medium, ASL containers require an inner plastic shell. The inner plastic sleeve has a "General Building Supervision Approval" and is therefore AHL for the storage of ...

The brand new container corresponds to DIN 6616, has 2 saddle feet, an ascent ladder and is primed on the outside - on untreated sheets. D = 2.50 m - L = approx. 10.70 m. The container receives a brand new plastic inner shell incl. leak warning device mounted in the protective box - see sample photo. The inner plastic sleeve has a "General Building Supervision Approval" and is therefore used for the storage of liquid fertilizer AHL nox reducing agent AUS 32 (AdBlue). The price is ex works - freely charged. We recommend: Above containers sandblasting from the outside, prime and completely repaint - iron grey / RAL hue. (On request, other RAL colours are also possible!) ASL (ammonium sulfate solution) is a sought-after liquid fertilizer used in drying plants during the drying of liquid fermentation residues and during exhaust air purification. ASL container  ...

Equipment for plastic recycling Co-Extrusion system composed of two double spindle extruders BAUSANO MULTIDRIVE system 4 x 2, Series 92-BGP-5031. Year 1.985 - Its general condition is excellent, it has always had a permanent and impeccable maintenance. Suitable for the treatment of virgin materials and those from thermoplastics recovered from HDPE, LDPE, PS, PP, UPVC, PVC, and also for the manufacture of polymeric alloys such as the composition of PC + PAY + PB + Fiberglass, etc. Also the Composition of: PP, PAG, Fiberglass, Alloys with sawdust, nut shells, natural fibers and the like. You can also work only with the main extruder, in which case the production would drop only 30/40% The MULTIDRIVE transmission system, with corrotating spindles and four efficient motors, is a reference technology in the world of extrusion, guaranteeing the highest quality and precision, even in ...

Storage tank, storage tank, fuel oil tank, diesel filling station, yard filling station consisting of: 1 x 30,000 litres capacity storage container 1 x pump type DK-80-MZ Description Containers: according to DIN 6616/D, above ground, double-walled, incl. officially recognized test certificate. The container has two saddle feet, a manhole DN 600 with dome lid, is used, emptied inside and professionally cleaned and is equipped with the following fittings: 1 filling pipe with TW closure (filling cap) and immersion pipe, 1 bearing tube with bearing rod and bearing rod closure, 1 vent pipe with vent hood, 1 brand new limit sensor with type approval (AIII), 1 ladder and 1 spare sleeve for picking purposes, 1 optical leak detector with type approval and leakliquid. The container is re-primed on the outside and painted in ral 7011 - iron grey. Other colours ...

Earth tank, storage tank, steel tank - brand new for the storage of HEL with 50,000 litres capacity, according to DIN 6608/2, double-walled, external with a high-quality PUR-ENDOPRENE insulation in accordance with DIN 6607. PUR-ENDOPENE is a 2-component solvent-free Polyurethane insulation with excellent insulation properties. Dimensions: D = 2.50 m - L = approx. 10.80 m - weight approx. 9.3 tons. Incl. a walk-in dome shaft, multi-part, according to DIN 6626, height-adjustable from approx. 850 mm to 1,050 mm, as well as a walk-in cover, galvanized + tagwaterproof. Containers ex works, freely charged. Additional price for a navigable dome shaft according to DIN 6626 General: You will receive an invoice with VAT shown. The purchase is made on our general terms and conditions. Further tank systems (new and used) as well as rental systems are also on offer ...

Storage tank, storage tank, diesel tank, fuel oil tank, steel tank, yard filling station, service filling station - brand new - according to DIN 6616/D, above ground, double-walled, incl. officially recognized test certificate. The container has two saddle feet, a manhole with dome lid and is connected to the following Fittings equipped: 1 filling pipe with TW closure (filling cap) and immerse tube, 1 bearing tube with bearing rod and bearing rod closure, 1 vent pipe with vent hood, 1 brand new limit sensor with type approval (AIII), 1 ladder and 1 spare sleeve for picking purposes, 1 optical leak detector with type approval and leakliquid. The container is primed on the outside - on untreated sheets. L = approx. 3.80 m - D = 1.60 m - weight approx. 1.6 to. - ex works, freely charged - General: You will receive an invoice with VAT shown. The purchas ...

extinguishing water tank, storage tank, earth tank, irrigation tank, sports field irrigation, cistern, rain collection container with 100,000 litres capacity for the storage of service water / extinguishing water. Dimensions: D = 2.90 m - L = approx. 16.00 m The container has a manhole DN 600 with dome lid, is used, emptied inside and professionally cleaned and is provided with a bitumen coating / bitumen insulation on the outside. Slight insulating damage due to removal and transport may be present on the container. Price from Söhrewald - freely charged - For use as a fire-fighting water tank, we can use the tank fully equipped with a fire brigade suction connection, consisting of: - 1 dome shaft made of glass-fibre reinforced plastic - GRP, complete with walk-in Steel plate cover - diameter = approx. 1.00 m, height = approx. 0.85m, - 1 pc. suction l ...

Diesel tank, steel tank, fuel oil tank, tank system, storage tank with 50,000 litres capacity according to DIN 6616/D, above ground, double-walled, incl. officially recognized test certificate. The container has two saddle feet, a manhole DN 600 with dome lid, is used, emptied inside and professionally cleaned and is equipped with the following fittings: 1 filling pipe with TW closure (filling cap) and immersion pipe, 1 bearing tube with bearing rod and bearing rod closure, 1 vent pipe with vent hood, 1 brand new limit sensor with type approval (AIII), 1 ladder and 1 spare sleeve for picking purposes, 1 optical leak detector with type approval and leakliquid. In this example, the tank was painted in ruby red. The container is re-primed on the outside and painted in ral 7011 - iron grey. Other colours at no extra charge: RAL 6005 - moss green, RAL 5011  ...

tank system, diesel tank, fuel oil tank, storage tank with 5,000 litres capacity according to DIN 6616/D, above ground, double-walled, incl. officially recognized test certificate. The container has two saddle feet, a manhole DN 500 with dome lid, is used, emptied inside and professionally cleaned and is equipped with the following fittings: 1 filling pipe with TW closure (filling cap) and immersion pipe, 1 bearing tube with bearing rod and bearing rod closure, 1 vent pipe with vent hood, 1 brand new limit sensor with type approval (AIII), 1 ladder and 1 spare sleeve for picking purposes, 1 optical leak detector with type approval and leakliquid. The container is re-primed and painted on the outside. L = approx. 2.80 m / D = 1.60 m / weight approx. 1.3 tons. / ex works, freely charged. General: You will receive an invoice with VAT shown. The purchase ...

Diesel tank, storage tank, service station, tank plant, steel tank, storage tank with 10,000 litres of content according to DIN 6616/D, above ground, double-walled, incl. officially recognized test certificate. The container has two saddle feet, a manhole DN 500 with dome lid, is used, emptied inside and professionally cleaned and is equipped with the following fittings: 1 filling pipe with TW closure (filling cap) and immersion pipe, 1 bearing tube with bearing rod and bearing rod closure, 1 vent pipe with vent hood, 1 brand new limit sensor with type approval (AIII), 1 ladder and 1 spare sleeve for picking purposes, 1 optical leak detector with type approval and leakliquid. The container is re-primed and painted on the outside. Dimensions: L = approx. 5.30 m / D = 1.60 m / weight approx. 2.2 tons. / ex works, freely charged. General: You will r ...

Surface disinfectant ready-to-use solution (ethanol- / isoporpanol-based) in 5L canisters for surfaces - Eliminates 99.9% of bacteria, fungi, germs and special viruses (H1N1,H5N1, Grippale Infections, Influenza, COVID-19 and Diarrhea) Technical data: Container: 5L canister Pieces: 300 Origin: Germany Smell: alcoholic (without addition of fragrances and dyes) Colour: clear-transparent Density at 20 degrees: 0.90 g/cm3 Water solubility: easily soluble Ph value: 7-8 UN number: UN1993 Active ingredient content per 100g product: 55g ethanol & 16g 2-propanol Registered and approved quality product from Germany. Opinion on the efficacy of the disinfectant in Sars-CoV-2 infections: Based on the VAH publication of 12.03.2020 "Notes on the efficacy and manufacture of disinfectants from 2-propanol and ethanol based on the general decree of BAUA against the background of the ...

brand new pump / tank column / data acquisition / diesel tank system Type eco 55 - not calibrated, Capacity up to approx. 55 l/min. suitable for diesel fuel, incl. - Tank machine with PC software (2,000 users) - 2 driver/vehicle identification system - Identification via transponder technology - USB interface for data retrieval - Wing cell pump with single-phase asynchronous motor - 230 volts - Oval wheel counter with pulse generator, accuracy = approx. +/- 0.5% - Inclined seat filter / dirt filter with fine sieve - 4 m dispensing hose DN 19 with type-approved automatic tap valve, incl. swivel joint and tap hose holder - Suction height approx. 3.5 m - Robust powder-coated steel plate housing Dimensions: approx. 1,410 x 520 x 275 mm - two-line, illuminated monochrome display, font height 8 or 19 mm - Tank data storage for up to 10,0 ...

Kahl Mixer Continuous Mixer Conditioner for Pellet Press Gr.3 used Manufacturer: Amandus Kahl Model: Gr.3 / Gr. III with drive motor ABB motors 380/660 V; 1470 rpm; 30 kW. For continuous conditioning, mixing of bulk materials with fissics as dosing for pellet presses . Use: - For continuous mixing of feed with liquids and steam - For melasses dry chips - In general process technology for moisturizing granular / powdery substances - General: for (all) mixing tasks in which liquids must be entered into solids Tech. Information Manufacturers - Total length approx. 2964 mm - Diameter approx. 550 mm - Total height approx. 900 mm - Distance inlet/outlet (center/middle) approx. 1950 mm - Inlet/output approx. 300x300 mm - Weight approx. 800 kg + motor approx. 245 kg Subject to changes and errors in the technical data, dates and prices as well as intermediate sale.

Rotary vane vacuum pump Two-stage oel lubricated Manufacturer: Pfeiffer Type: DUO 250 Cat.-No.: PK D27 602 / K141 Status: Used (functional!) (A general recovery is offered) suction power: approx. 250 m3/h Endduck: > 5x10e-3 mbar Performance: 12 months (in case of general recovery) Including: user manual and oil Delivery time: ex works ; ready for use

Fuel oil tank, storage tank, steel tank, diesel tank, tank system with 60,000 litres capacity according to DIN 6616/D, above ground, double-walled, incl. officially recognized test certificate. The container has two saddle feet, a manhole DN 600 with dome lid, is used, cleaned, overhauled and equipped with the following fittings: 1 filling pipe with TW closure (filling cap) and immersion pipe, 1 bearing tube with bearing rod and bearing rod closure, 1 vent pipe with vent hood, 1 brand new limit sensor with type approval (AIII), 1 ladder and 1 spare sleeve for picking purposes, 1 optical leak detector with type approval and leakliquid. The container is re-primed on the outside and painted in ral 7011 - iron grey. Other colours at no extra charge: RAL 6005 - moss green, RAL 5011 - steel blue. L = approx. 12.80 m / D = 2.50 m / weight approx. 11.5 tons. ...

V-mixer made of stainless steel with a capacity of 400 liters equipped with intensifier bar (prepared for inerting or liquid injection) to improve mixing. Feeding through the two upper mouths with manually removable lid and discharge with butterfly valve of 200 mm in diameter. The intensifier bar engine is 5.5 hp (1430 rpm) With electrical panel. General characteristics: Material Stainless steel Weight 640 kg General dimensions: Overall length: 3150 mm Total height: 1600 mm (3000 mm with legs) Overall width: 850 mm Electrical panel: 1800x800x310 mm Specifications: Volume 400 L Engine 3 PS - 1500 rpm Reducer 22 rpm (i= 41.8) Agitation Intensifier bar

State of and exterior absolutely new, general overhaul and repainted Performance: 12 months Manufacturer: Leybold Type: DK 100 Fabr. -No.: 11106 Motor: 400V DS Equipment: Mineraloel Including: User Manual Oel Mist Separator optional Delivery time: on request Photo showing a general-ordered DK200 ; ready for use

USED TEFSA EHR 1200-16 FILTER PRESS REF.: C5899 Used EHR-1200/16 filter press manufactured by TEFSA. Currently it is provided with 19 plates of 1200x1200 mm but it has a capacity of 29 plates General characteristics: Manufactured by TEFSA Model EHR 1200-16 Type Press filter Year built 1993 Weight 13.300 kg With complete documentation Overall dimensions: Total length: 7,305 mm Total height: 2,000 mm Total width: 2,000 mm General characteristics: Working length: 1900 mm Hydraulic central motor power 5.5 kW Turning motor power: 1.5 kW Working pressure: 16 bar Closing pressure: 390 bar Technical characteristics: Work pressure 16 bar No. of plates 19 (ampliable a 29) Panel surface 1200x1200 mm Filtration area 40 m2 (ampliable a 60 m2) Volumen de torta 602,3 dm3 (ampliable a 920 dm3) - espesor 30 mm Hydraulic equipment 5.5 kW

The CE10 series is an electrically driven high-pressure cleaner. This model is the ideal tool for general cleaning work. Built into a stainless steel frame, this robust high-pressure cleaner is easy to move and can be equipped with various accessories, such as rotor nozzles, chemical injectors and a sandblasting kit. Similar but no Dynajet, Falch, Kärcher, Oertzen, etc. Available models: ----- CE10-200 50Hz 200 bar 21 l/min. CE10-200 60Hz 200 bar 25 l/min. General Specifications: ----- Power of the drive motor: 7.5 kW (50Hz) / 9 kW (60Hz) Volts: 400V (50Hz) - 440V (60Hz) Amp: 15.1A (50Hz) - 15.6A (60Hz) Dimensions: 690 mm x 560 mm x 900 mm Weight: 70 kg Includes standard accessories.

Key data: 150 , 394 , 50

Manufacturer/manufacturer: Krauss Maffei Typ/type: KM 110-390 C1 Year/year: 1993 Control/controller: MC 4 Clamping force/clamping force: 1500 kN Holmabstand/Dist.Betw.Tiebars: 500 mm x 500 mm Disk size/platen size: 750 x 750 mm WZ height/mould hight: min 250 max 500 mm Opening/opening stroke: 500 mm Plate distance of max/Max open daylight: 1060 mm Auger/screw size: 50 mm Stroke volume/shot volume: 442 CC / 394 gram PS Spritzdr / injection pressure: 1946 bar General / General engine power: 30 kW Heating/heating power: 14,8 kW Dimensions/dimensions: 5.5 m x 1.6 m x 2.10 m Weight/weight: 5600 kg Screen text: German Options/optional extras Core puller / core pulling: x 1 Air valve / air valve: x 1