The Lee Company’s new 687 Side Exit PRV is the latest addition to Lee’s line of Pressure Relief Valves. This new valve is ideally suited for hydraulic applications where a fast opening safety relief valve is needed to prevent system damage from pressure spikes. Offered with or without an integral safety screen, the 687 PRV is available in a range of minimum cracking pressures from 400 to 3600 psid. Each Lee Pressure Relief Valve is 100 per cent tested and inspected to ensure reliable, consistent performance.
Radio wave weapon knocks out drone swarms
Probably. A radio-controlled drone cannot be completely shielded to RF, else you´d lose the ability to control it. The fibre optical cable removes...