pescador775
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You can't put a restrictor inside the hose, the pressure is too low. The device is made from a thin stainless steel disc, pierced with a small drill and inserted in the regulator HP orifice. If flat, a thin teflon ring must be inserted between the disc and filter. The intermediate pressure may have to be adjusted.
The Nemrod valve arm has to be turned down on a lathe. It is possible to do on either end. However, if the outboard arms are shortened if is necessary to fabricate a replacement end stop and braze it to the arm.
All unbalanced diaphragm reducing valves breath easier at low tank pressures. This is a "tell" that pressure is getting low. However, when breathing finally becomes difficult there is enough gas left in the tank to support breathing on the way up. This is not always so with modern, high performance regs with certain tank valves such as the Sherwood 5000.
The Nemrod valve arm has to be turned down on a lathe. It is possible to do on either end. However, if the outboard arms are shortened if is necessary to fabricate a replacement end stop and braze it to the arm.
All unbalanced diaphragm reducing valves breath easier at low tank pressures. This is a "tell" that pressure is getting low. However, when breathing finally becomes difficult there is enough gas left in the tank to support breathing on the way up. This is not always so with modern, high performance regs with certain tank valves such as the Sherwood 5000.