These copper fittings are for soldering steam lines and water pipes and can be brazed with silver solder as well as soft soldered with soft solder. If you want to make steam pipes as straight as possible with the fittings, we recommend the copper pipes which are available from us. In addition, the fitting 90° are still suitable for exhaust, cooling lines and other constructions in model construction. The 90° bends are formed in one piece from copper tube. The copper fittings are available in different sizes. In the fittings, both the copper tube we supply and the copper tubes can be brazed. You will also find in our shop couplings and tees for pipeline construction in model construction. The fitting 90° bends from 4mm to 6mm have a wall thickness of 0.5mm. The copper arches from 6mm to 12mm have a wall thickness of 1mm. Fitting 4mm Fitting 5mm Fitting 6mm light Fitting 6mm heavy Fitting 8mm Fitting 10mm Fitting 12mm Radius Neutral Fiber 5mm 7mm 9mm 9mm 10mm 13mm 15mm Leg Length 13mm 16mm 19mm 19mm 24mm 26mm 32mm For Soldering 4mm Pipe 5mm Pipe 6mm Pipe 6mm Pipe 8mm Pipe 10mm Pipe 12mm Pipe Wall Thickness 0.5mm 0.5mm 0.5mm 1.0mm 1.0mm 1.0mm 1.0mm

soldering nipple for our single screw connection and Screw-in fitting. These soldering nipples can be used as a spare part for our screw connections. The soldering nipples are made entirely of brass and can be ordered in 4 different sizes. There are nipples for soldering 6 mm pipe, 5 mm pipe, 4 mm pipe, 3 mm pipe. The brass pipes and copper pipes we offer are particularly suitable for soldering.   Dimensions of soldering nipple for 3mm pipe: Length nipple: 7.5mm Max D.: 4.4mm Dimensions of soldering nipple for 4mm pipe: Length nipple: 9mm Max D.: 5.4mm Dimensions of soldering nipple for 5mm pipe: Length nipple: 9.5mm Max D.: 6.4mm Dimensions of soldering nipple for 6mm pipe: Length nipple: 10mm Max D.: 7.4mm

Pipe clamp CNC milled from brass. These pipe clamps are used to fix brass pipes or copper pipes on their model building facility. The pipe clamps have a 2.2 mm holes and can either use wood screws or with m2 model bolt to be attached. We have the clamps in both a single version for attaching one pipe and a double version for attaching 2 pipes. The pipe clamps are milled out of brass material with a CNC milling machine and then receive a second one from us .2 mm hole for fastening. Dimensions of the pipe clamp for 3mm pipe Single Length: 9.5mm Height: 3.7mm Width: 4mm For clamping: 1x 3mm pipe Double Length: 11.5mm Height: 3.7mm Width: 4mm For clamping: 2x 4mm pipe Dimensions of the pipe clamp for 4mm pipe Single Length: 10.5mm Height: 4.5mm Width: 4mm For clamping: 1x 4mm pipe Double Length: 13mm Height: 4.5mm Width: 4mm For clamping: 2x 4mm pipe

Connecting sleeves for soldering into the steam boiler with two different fine threads. The soldering connection sleeves are inserted into a hole with a 10 mm diameter and can then be soldered hard or soft. The beeches are made of brass MS58. Thanks to the soldering connection sleeves, the parts attached to the steam boiler have a sufficiently stable and long screw-in thread. The solder connection sleeve M6x0.75 fits our boiler accessories.The solder connection sleeve e M8x0.75 fits our safety valve with weight  The socket dimensions are always the same: Soldering diameter: 10mm Bundle diameter: 12mm Height: 10mm

These Cu braze fittings are suitable for connecting two pipes. The copper tube is inserted into the socket. Subsequently, the copper sleeves can be brazed or soft soldered. As in sanitary engineering, the sleeves are made of copper tubing. The small sleeves are ideal for model building, for example to extend steam lines or fuel lines. The sleeves for 4 mm and 5 mm pipes have a wall thickness of 0.5 mm. All sleeves from a size of 6 mm have a wall thickness of 1 mm. The following braze fittings are available: Copper Soldering Fitting I / I / Size: 4 x 4 mm / wall thickness 0,5mm Copper Soldering Fitting I / I / Size: 5 x 5 mm / wall thickness 0,5mm Copper Soldering Fitting I / I / Size: 6 x 6 mm / wall thickness 1mm Copper Soldering Fitting I / I / Size: 8 x 8 mm / wall thickness 1mm Copper Soldering Fitting I / I / Size: 10 x 10 mm / wall thickness 1mm Copper Soldering Fitting I / I / Size: 12 x 12 mm / wall thickness 1mm

With this screw-in connection you can easily create an easily detachable connection between steam pipes and water pipes. One side of this screw connection has a metric fine thread that you can screw into a boiler, steam engine or condenser. The other side of the screw-in connection is provided with a union nut and a cone solder nipple. Either a brass tube or a copper pipe can be soldered in and then screwed to the screw body using the union nut. The screw-in fitting is available for 3mm, 4mm, 5mm or 6mm pipe. The screw-in connection is made entirely of brass and seals with a cone. You can also find in our shopSolder connection sleeve into which the screw-in connections can be screwed in. Matching Soldering nipple and Coupling nuts you can also find spare parts in our online shop. Dimensions of screw-in connection for 3mm pipe: Length with nipple: 19mm Wrench size: 7mm Length without nipple: 15mm Screw-in thread: M5x0.5  Dimensions of screw-in connection for 4mm pipe: Length with nipple: 22mm Wrench size: 8mm Length without nipple: 15mm Screw thread: M6x0.75  Dimensions of screw-in connection for 5mm pipe: Length with nipple: 24mm Wrench size: 9mm Length without nipple: 15mm Screw thread: M6x0.75  Dimensions of screw-in connection for 6mm pipe: Length with nipple: 28mm Wrench size: 10mm Length without nipple: 20mm Screw-in thread: M8x0.75

With a copper solder fitting T-piece one can connect three line strings or also lead a line to an existing line strand. These Cu solder fittings are suitable for inserting copper pipe. Subsequently, the copper tee can be brazed or soft soldered with silver braze. The tees are made of copper pipe as usual in sanitary engineering and no chunky castings. Of course, our copper tubes fit into the soldering fitting tee pieces. These small tees are ideal for modeling and steam model building. The following braze fittings are available: Copper solder fitting / T-piece I / I / I / soldering in: 6 x 6 x 6 mm Copper solder fitting / T-piece I / I / I / soldering in: 8 x 8 x 8 mm Copper solder fitting / T-piece I / I / I / soldering in: 10 x 10 x 10 mm Copper solder fitting / T-piece I / I / I / soldering in: 12 x 12 x 12 mm

Piston rings for installation in an internal combustion engine. These piston rings are industrially manufactured and fit exactly into the cylinder tubes we offer. The rings are made from GG 25. Because they have a larger diameter when dismantled, they always rest against the cylinder wall when assembled due to the spring force, thus ensuring good compression. These piston rings fit perfectly into our cylinder barrel. Dimensions of the piston rings 25mm Nominal diameter: 25 mm Height: 1.5 mm Thickness 1.05 mm Material:  GG25 Dimensions of the piston rings 30mm Nominal diameter: 30 mm Height: 1.5 mm Thickness 1.5 mm Material:  GG25 Dimensions of the piston rings 40mm Nominal diameter: 40 mm Height: 2.0 mm Thickness 1.7 mm Material:  GG25        

With this single screw connection you can easily create an easily detachable connection between steam pipes and water pipes. Ideal for steam model building. We have the single screw connection in different sizes for connecting 3mm, 4mm, 5mm or 6mm pipe. The pipe is firmly soldered into one side of the screw connection. The second pipe to be connected is soldered into the soldering nipple. Using the union nut, it can now easily be screwed to the main part. This creates an easily detachable and tight connection between steam pipes, water pipes or fuel pipes. The single screw connections are made entirely of brass and seal with a cone. The model making screw connection is suitable for soldering in copper pipes as well as for soldering in copper pipes and Brass tube. Scope of delivery: Screw connection with union nut and conical soldering nipple. Dimensions of single screw connection for 3mm pipe: Length with nipple: 18mm Wrench size: 7mm Length without nipple: 14mm  Dimensions of single screw connection for 4mm pipe: Length with nipple: 21mm Wrench size: 8mm Length without nipple: 14mm Dimensions of single screw connection for 5mm pipe: Length with nipple: 24mm Wrench size: 9mm Length without nipple: 16mm Dimensions of single screw connection for 6mm pipe: Length with nipple: 27mm Wrench size: 10mm Length without nipple: 19mm  

Soldering flange oval made of brass for soldering 4mm pipe. The flange has 2 holes with a diameter of 2.2 mm. For screwing 2 flanges, you need 2x model screws M2x6 and 2x model tree nuts M2. The slim design of the oval flange is very space-saving and easy to set up with narrow steam systems. These types of flanges can also be used when similar oval flanges have been used in the historical model. Dimensions Oval flange for 4mm tube hole spacing 11mm 2 holes 2,2mm Outside diameter 16mm

Cap nuts for our Simple screw connection and Screw-in fitting. These union nuts can be used as a spare part for our screw connections. The union nuts are made entirely of brass and can be ordered in 4 different sizes. There are union nuts for the screw connections for soldering 6 mm pipe, 5 mm pipe, 4 mm pipe, 3 mm pipe. The brass pipes and copper pipes we offer are particularly suitable for soldering.   Dimensions Coupling nut for 3mm pipe: Length of union nut: 6.5mm Wrench size: 7mm Dimensions of union nut for 4mm pipe: Length of union nut: 8mm Wrench size: 8mm Dimensions Coupling nut for 5mm pipe: Length of union nut: 8mm Wrench size: 9mm Dimensions Coupling nut for 6mm pipe: Length of union nut: 9mm Wrench size: 10mm

This tube is a hydraulic cylinder tube. The inside of the tube is very dimensionally stable and wear-resistant. The cylinder tube is suitable as a cylinder sleeve for an internal combustion engine or flame eater. We also use this cylinder tube in our models. We use it for the combustion engine Karl,  Stirling engine "Big Laura" and the Flame Eater Jarne. Due to its high wear resistance, the tube has proven itself as a cylinder sleeve for us. Dimensions of hydraulic cylinder tube 25mm: Outer diameter: 35mm Inner diameter: 25mm Length: 83mm Material: St52 Suitable Piston rings for this cylinder tube can be found here Dimensions of hydraulic cylinder tube 30mm: Outer diameter: 40mm Inner diameter: 30mm Length: 86mm Material: St52 Dimensions of hydraulic cylinder tube 40mm: Outer diameter: 50mm Inner diameter: 40mm Length: 117mm Material: St52 Dimensions of hydraulic cylinder tube 50mm: Outer diameter: 60mm Inner diameter: 50mm Length: 142mm Material: St52

Oil cup made of brass with M3 or M4 connection thread. For screwing into steam engines, flame eaters and Stirling engines. The oil cups are ideal for technical modeling. The oil quantity is not adjustable on these oilers. The through hole is 1.2 mm in diameter. The speed of the flow depends on the viscosity of the oil. The Olerbecher can be filled with different oils. Dimensions of the oil cup: Connection thread: M3 / M4 Overall Height: 23mm Height screwed: 19mm Diameter: 12mm

These glass oilers for model making are made from brass. The sight glass is made of impact-resistant acrylic glass. Both sizes have a connection thread with an M3 meter standard thread. The glass oilers have a fixed flow rate. The flow hole is 1.0mm. The oilers are designed as cup oilers and do not have a top lid. The real glass oilers can be installed on cylinders of flame eaters and Assemble Stirling engines. Of course, the glass oilers also look very good on eccentrics, bearing blocks of steam engines or internal combustion engines. The oilers are available in 2 different sizes. Dimensions of glass oiler 6mm cannot be adjusted Total height: 20.5mm Diameter glass: 5mm Largest diameter: 6mm Connection thread: M3 Dimensions of glass oiler 8mm cannot be adjusted Total height: 27mm Diameter glass: 7mm Largest diameter: 8mm Connection thread: M3

Cast iron with lamellar graphite. The surface is peeled on the gray cast iron bars. The round bars are a little over-sized. You can also make a 30mm piston with a 30mm diameter. The material is suitable both for the production of pistons or cylindrical sleeves for model-built motors as well as for the production of plain bearing bushes. We use this material for the pistons at the station "Karl". The round material can be perfectly machined on the lathe and on the milling machine and has excellent running characteristics. All round bars are 300mm long.

These relatively small spark plugs are particularly suitable for model combustion engines. Its metric M10 × 1 thread also fits into smaller cylinder heads. The spark plugs fit into our internal combustion engine and can be used as a spare part. Of course, you can also use the spark plug CM-6 for your own development with our ignition components. Data of spark plug CM-6 M10x1 Key range: 14.0 mm Overall length: 36mm External thread: M10x1 Thread length: 8.6 mm

A water level indicator is used to read the water level in the steam boiler. Our water level indicators consist of 2 angle pieces that are connected by a glass tube. Since it is dangerous for the boiler to run dry, it is always recommended to install a water level indicator. At Bengs Modellbau you have the choice between a light and a heavy version. Depending on how big your steam boiler is, you can choose the right variant. The water level indicator is made of brass, hard soldered and sandblasted. For assembly, a shaft can be pushed by unscrewing the sealing plugs. This is used for precise alignment of the screw-in bodies. If the glass breaks, the tube can be changed in no time. The water level indicator comes with a 100 mm long tube.Water level indicator lightweightWith a hole spacing of 60mm, the tube is visible for 35mm. Maximum hole spacing: 100mm Screw thread: M6x0.75< li> Height with union nut: 20mm Length part 1: 17mm Length part 2 with sealing plug: 26mm Largest diameter: 10mm Glass tube: 5mm x 100mmWater level indicator heavy Schott Duran glass tube is 100% sealed with graphite Teflon tape. With a hole spacing of 80mm, the tube is visible for 45mm . Maximum hole spacing: 100mm  Screw-in thread: M6x0.75 Height with union nut: 30mm  Length: 33mm  Width: 15mm  Glass tube: 5mm x 100mm

These glass oilers for model making are made from brass. They have a connection thread with a meter standard thread. The flow rate can be regulated very precisely using the hexagon on top of the oiler. A spring prevents the spindle from shifting due to vibrations. The real glass oilers can be mounted on cylinders of flame eaters and Stirling engines. Of course, the glass oilers also look very good on eccentrics and bearing blocks of steam engines. We installed the 12mm glass oilers on our model Dürkopp plunger engine. Dimensions of glass oiler 12mm adjustable Total height: 40mm Diameter glass: 10mm Largest diameter: 12mm Connection thread: M5

These NiMH batteries can be charged with almost any charger for NiMH batteries. Depending on charging and usage behavior, these can be recharged up to 1,000 times. These batteries are specifically for devices with above-average power consumption. We use these batteries to operate the glow ignition for our internal combustion engines. With 3500 mA, this battery has enough power to keep the glow plug operating for a long time. We use this battery to operate the glow ignition for our combustion engine Little Karl.Rated voltage: 1.2 V Rated capacity: 3500 mAh Charging current max.: 1750 mA

Flanges for steam model construction for soldering in steam and water pipes. All sizes have 4 x 2.2mm holes for screwing with M2 screws (SW 4mm or SW 3mm). The flanges can be pushed onto a steam or water line and can be brazed or soldered. These flanges make their model building engine look true to the original. The enclosed Abil paper seal ensures the required tightness. Included in the delivery are: 10 flanges 8 Seals     Flansch A Flansch B Durchmesser 16mm 18mm Höhe 5mm 6mm Zum Einlöten von 4mm Rohr 6mm Rohr Teilkreis 11mm 13mm On request, we can supply you with the appropriate screws and nuts M2x6 Modellbauschrauben (SW 3) Modellbaumutter M2.The screws and nuts are not included in the scope of delivery.

Glow plug for operating model combustion engines. The glow plug has a thread of UNEF ¼ × 32, it is very small compared to our spark plug and is therefore particularly suitable for small-scale model engines. This glow plug is used in our stationary engine “Little Karl”. The use of glow plugs in technical model making has several advantages. One advantage over the spark plug is that you only need one battery to operate the glow plug. In addition, the ignition timing does not need to be adjusted. The mixture ignites automatically when the compression reaches its highest point. If you build an internal combustion engine yourself, you will need a UNEF ¼ × 32 tap for the glow to be able to screw in the candle. Characteristics and dimensions of the glow plug Thread: UNEF 1/4 x 32 Total length: 17.3mm Thread length: 5mm Wrench size: 8mm

This safety valve is made of brass. It is significantly smaller than the weight safety valve. This makes it suitable for smaller boilers or steam systems. The safety valve is loaded with a stainless ball and spring. The screw-in thread of the pressure relief valve is M6x0.75. Our soldering sockets are best suited, which are soldered into the boiler in order to subsequently screw in the safety valve. Under no circumstances should a steam boiler be operated without a safety valve. The safety valve prevents the maximum pressure from being exceeded. The safety valve is set to 4bar, but can be adjusted.  Dimensions of safety valve:  Height with thread: 37mm  Height without thread: 31mm  Wrench size: 10 mm The matching Solder sleeve M6x0.75 can be found here.

The Ignition condenser for intermittent ignition is a component which should not be missing. The condenser regulates the strength of the ignition spark. This ignition coil is also installed in the internal combustion engine Karl and can be used as a spare part. You can use this capacitor to create an ignition breaker for model building. This is a solid moped technology that has proven itself over many years. An intermittent ignition is very durable and also times a wrong polung.   Dimensions Capacitor for Ignition condenser Length: 41mm Diameter: 18mm Threaded connection: M4  

Use this Ignition interrupter to generate the spark. You can control the breaker directly via a cam or via a ram. This article is a serial product from the moped technology. This guarantees a good quality, long durability and fast availability. You can create your own ignition system from this interrupter. We also use this breaker in the ignition of our internal combustion engine "Karl". It can also be used as a spare part in this model.   Dimensions of the Ignition interrupter Length: 30mm Width: 30mm Height: 20mm