Thank you Alcwyn Elliot for your comments on this post, it is much appreciated.
By John Redfern (10/11/2019)
This pump was introduced earlier than 1968, It is featured in my hydraulics book first edition 1967. Designed to use emulsion 95/5 (5% oil) and was 8.5 Imp GPM and worked @ 2000 psi at a motor speed of 1500 rpm. Pumps today operate at 5000 psi with a separate pump for positive set at 6000 psi based on mine geology.
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Thank you Alcwyn Elliot for your comments on this post, it is much appreciated.
This pump was introduced earlier than 1968, It is featured in my hydraulics book first edition 1967.
Designed to use emulsion 95/5 (5% oil) and was 8.5 Imp GPM and worked @ 2000 psi at a motor speed of 1500 rpm.
Pumps today operate at 5000 psi with a separate pump for positive set at 6000 psi based on mine geology.
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