Please contact your local MOGAS stocking distributor for replacing stem packing sets. MOGAS recommends the following spares:
Low Cycle (< 365 cycles per year) – 1 set of packing for every 5 valves (each size and class)
Hi Cycle (365-1000 cycles per year) – 1 set of packing for every 3 valves (each size and class)
Extreme Cycle (>1000 cycles per year) – 1 set of packing for every valve
Please be advised that stem packing recommendations are an estimate as operating and plant conditions differ.