An independent certification received by
John Crane EAAfor its power transmission couplings has opened the door for these products to be sold to the marine industries market. The company’s Metastream T-Series membrane couplings have received a Type Approval Certificate from Det Norske Veritas (DNV), which confirms that they comply with DNV’s Rules for the Classification of Ships/High Speed and Light Craft.
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UK homes more suitable for heat pumps than expected
Hello Gordoun, you can use a simple empirical formula to estimate COP (my own analysis, unpublished, based on the Building Research Establishment...