Manifolds - Import export

HotCoils have a larger cross-sectional area and are thus capable of greater power than MicroCoils. For this reason they are used in hot runners with adequate space and where high heat densities are required. Owing to the large number of variants and for cost reasons, the sheath material for HotCoils is stainless steel - the standard for the market and thus also for Freek. HotCoils are large enough that thermocouples can be integrated into them. Our standard here is Type J (Fe-CuNi; red/blue), while Types J and K are also available conforming to the IEC and ANSI standards (see colour codes). Since the measurement point of a built-in temperature sensor is situated in the heater and never where the heat is actually required, a HotCoil with a thermocouple makes particular sense where the application allows the use of larger processing (temperature) windows or where the installation location or the design requires protection against overheating.

Square cartridge heaters are used where much power has to be installed near the surface of a tool, e.g. in cutting knives, sealing stations or hot plates. With a soft, malleable condition in stainless steel or nickel sheath square cartridge heaters can easily be pressed into common milled rectangular grooves. Apart from the advantageous heat transfer over ¾ of the sheath, it is not necessary to cement or cast in the heater which is imperative for round cartridge heaters. Unlike tubular heaters which are also available in square sections (see chapter Flexible Heating Pipes), the square cartridge heaters have the termination on one side and can be loaded with 16W/cm² (2.5W/in²) due to their special inside construction.

Square stainless steel tubular heaters BASE-flex (1.4541) are a reliable industry standard for the use in heating platens and manifolds. In contrast to traditional tubular heaters with a round section which have to be bent by machines, square BASE-flex can be fitted into any rectangular groove with simple hand tools. Moreover, the square shape results in a bigger heat emitting area of up to 80% compared with a corresponding round section. Finally, the easy manual mounting saves the usually high technical expenditure for casting-in / soldering / cementing of bent round tubular heaters. A soft version of the BASE-flex, the NICKEL-flex (2.4068) is available as special execution. Due to the soft, easy to form nickel material, the NICKEL-flex is suitable for manual mounting with hand tools in round sections, too. Furthermore, Nickel has a better capability to conduct heat compared with stainless steel.

Block-Body Ball Valves for Manifold Mounting BBV35 ▪ Three-way high-pressure block body ball valves designed for use as three-way selectors (L-bore, 90° operation) for hydraulic applications ▪ Block body design for manifold mounting with either 4 or 6 mounting holes for added safety; improved manifold design eliminates external piping and connectors ▪ Pressure inlet possible from center port only ▪ Pressure range: up to 500 bar / 7250 PSI (depending on size and material combination of the ball valve) Block-Body Ball Valves for Manifold Mounting BBVS35 ▪ Three-way high-pressure block body ball valves designed for use as three-way selectors (L-bore, 90° operation) for hydraulic applications ▪ Block body design for manifold mounting with either 4 or 6 mounting holes for added safety; improved manifold design eliminates external piping and connectors ▪ Pressure inlet possible from all ports ▪ Pressure range: up to 500 bar / 7250 PSI (depending on size and material combination of...

Block-Body Ball Valves for Manifold Mounting BBV25 ▪ Two-way high-pressure block body ball valves designed for use as on/off devices for hydraulic applications ▪ Block body design for manifold mounting with either 4 or 6 mounting holes for added safety; improved manifold design eliminates external piping and connectors ▪ Pressure range: up to 500 bar / 7250 PSI (depending on size and material combination of the ball valve)

Valves & Manifold