Dry Gas Seal Primary vent suction perssure HI Hi

Gentles

We have installed new gas compressors solar titan 130 turbines
driven. Unfortunately, we have problem of primary vent suction pressure for dry
gas seal (John Crane) Hi Hi.

Our operating parameters are:

Compressor suction pressure: 60 bar.

Compressor suction temperature: 40C.

Compressor discharge pressure: 80 bar.

Compressor discharge temperature: 60C.

Gas Cooler Set Point: 60C.

Compressor suction flow: 10.5 mmscmd.

NPT: 65%.           

NGP: 89.7%.

RPM: 5500.

Surge margin: 48%.

Seal gas heater inlet temperature: 55C.

Seal gas heater discharge Temperature: 80C.

Seal gas inlet pressure: 78 Bar.

Delta pressure across primary seal gas components: 1.4 bar.

Please notice that, after compressor tripping due to primary
seal suction vent hi hi pressure, just a matter of time and pressure went to
zero.

Any other parameters required please ask me.

Could I get your help to fine the solution for this faulty??

Thank You