- What is a permanent mold casting?
- What is an investment casting?
- What kind of certification is available?
- What are the dimensions of our camlock fittings?
- Where can I find the pressure rating of the camlock couplings available?
- What are the specifications of a camlock coupling?
The permanent mold casting process includes the process of pouring melted metal into permanent metal molds under high pressure. The castings which are produced in permanent molds have a better grain structure and higher strength properties than those cast from similar alloys in sandcasting and die-casting. These castings have better dimensional consistency as well as a smooth surface finish which is accomplished right out of the mold, thus, removing some of the secondary enhancing procedures.
The investment casting process begins with the manufacturing of a wax pattern with the exact geometry of the finished casting. This pattern is typically made by injecting liquid wax or plastic into a metal die cavity. The making of the ceramic shell mold process starts by dipping the entire wax cluster into a fine, ceramic slurry, then coating it with a fine ceramic sand. After the first coating dries adequately, the cluster is dipped into increasingly coarser grades of ceramic material. When the shell is between 3/16" and 5/8" thick, it is placed in a heated environment that melts the wax pattern gates, runners, and spruce. The remaining ceramic shell contains dimensionally exact cavities of the desired casting shape.back to top
Upon request a Certificate of Conformity can be provided. Also by request, material certificates and/or DIN 2.1.b certificates can also be provided. DIN 3.1.b certificates can be supplied as well, but this will affect the price and delivery. This must be requested at the enquiry phase and confirmed when ordering. Please contact us for any special certifications or product test requirements you may have.
You can find general dimensions for our camlock couplings here on the camlock fittings specification page.
Cam and groove couplings have been factory-made to the US Military specification MIL-C-27487. This specification covered the sizes and dimensions, machining tolerances, materials, closing rotation, part numbers, pressure ratings, finishing, inspection procedures and packing requirements of the product. Compliance to this specification ensured inter-changeability of parts from different manufacturers.
The individual parts made for the US Military applications generally complied in full with MIL-C-27487, in respect of stamping of part numbers, inspection, packaging and anodizing. Such products were ordered using the specific MS part numbers within MIL-C-27487. Typically, parts supplied for commercial applications only complied with the material, dimensional and pressure parameters of the specification. Please make note that only some of the sizes and materials offered were covered by MIL-C-27487.
Many generic products have been produced lately, which only slightly fulfill the specifications due to other materials used, reduced wall thickness and a smaller amount inspection being provided. Even though this process helps to reduce the cost, it will also harmfully affect the life of the product. It can also put the operator and/or environment in danger.
A cancellation notice in 1998 stated that the specification A-A-59326 has replaced MIL-C-27487. The German DIN 2828 standard has been presented in Europe, and there is also a draft CEN standard for cam and groove couplings in existence. Products manufactured to DIN 2828 are interchangeable with those made to the original MIL-C-27487, but have differences in their hose tail design, part number, thread and other specifics.
Here at Pro Flow Dynamics our camlock fittings in basic configurations are designed to interchange with products made to DIN 2828, A-A-59326 or MIL-C-27487.
For full details of the product types available, please see: camlock fittings specification page.back to top