PROCESSTEC ViscoTwin 130 G8 Operation & Maintenance Manual page 22

ViscoTwin
bearing housings are configured based on pressure rating and flow direction as follows:
2:2 Standard
(Up to 300 psi)
3:1 High Pressure
Product Flow (FH)
(300 psi to 650 psi)
1:3 High Pressure
Product Flow (HF)
(300 psi to 650 psi)
Page 16
1. ABOUT VISCOTWIN SCREW PUMPS
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