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Click on links below for a complete listing of all model numbers ever produced.

Denison "Industrial/Marine-Heavy" Series Pumps and Motors (9 Piston Design)

       
Code Number Model Number Displacement / Pressure Description
       
       
  10 Series    
       
25-5082 PXX-0093-105-R1P-X428 1.85 in/rev, 3500 PSI Fixed AND variable displacement, 3500 PSI max pressure
25-8290 MXX-0293-100-N1B-X417 1.85 in/rev, 3500 PSI Fixed displacement, 3500 PSI max pressure
       
  20/21/22 Series    
       
015-10754 PXX-0103-226-RF-X527 1.95 in/rev, 3000 PSI Varible displacement, open loop, 3500 PSI max pressure
015-10754 PXX-0103-226-RF-X527 .96 in/rev, 5000 PSI Varible displacement, open loop, 5000 PSI max pressure
       
  30 Series    
       
M15-00570 PPC-0413-307-R3P-X792 7.77 in/rev, 3500 PSI Fixed AND Variable displacement, 3500 PSI max pressure
       
  40 Series    
       
M15-16618 PXC-0593-409-N3P-X355Q (NASA) 11.3 in/rev, 3500 PSI variable volume, 3500 PSI max pressure, open loop, cross-center, 410-993 servo valve/035-28956 feedback pot
M15-12424 PPC-0593-407-L3F-X535 11.3 in/rev, 3500 PSI variable volume, auxillary port block w/o chain tower, has piping for external servo and replenishing feeds (reference X534), neutral interlock switch
M15-00164-0 PPC 0593 407 R/L3P X597 11.3 in/rev, 3500 PSI 40 Series, variable volume, rotary servo, auxillary port block w/o chain tower, manifold assembly (R2V & R1S valves mounted on aux port block), replenishing check blocked (used R2V instead), less pedestal
M15-00164-0 PPC 0593 407 R/L3P X597
Ellicott Dredge Hydraulic Pump 11.3 in/rev, 3500 PSI 40 Series, variable volume, standard open loop port block, adjustable maximum volume stop on upper control cylinder, adjustable minimum volume stop in lower control cylinder, rotary servo control (one side-center opertion only) Ellicott Dredge Hydraulic Pump
M15-00392 PXX-0593-407-L1P-X775 (Ellicott Dredge)
M15-00392 PXX-0593-407-R1P-X775 (Ellicott Dredge)
Ellicott Dredge Hydraulic Pump 11.3 in/rev, 3500 PSI 40 Series, variable volume, standard open loop port block, adjustable maximum volume stops on both upper and lower control cylinders, rotary servo control (cross-center operation) Ellicott Dredge Hydraulic Pump
M15-16400 PXC-0593-407-L3P-X775A (Ellicott Dredge)
M15-16400 PXC-0593-407-R3P-X775A (Ellicott Dredge)
M15-00206 PPC 0539 407 L3P X752 (Skagit) 11.3 in/rev, 3500 PSI 40 Series, old rotary servo control, replenishing relief blocked, T1C-017 & PF05, 10 micron wire mesh filter
M15-00578 PXC-0593-407-R3P-X794 (US NAVY B&A CRANE) 11.3 in/rev, 3500 PSI 40 Series, auxillary package, T1C-PF05, D1D04 valves, 10 micron wire mesh filter, neutral interlock switch
M15-00577 PPC-0593-407-L3P-X793 (US NAVY B&A CRANE) 11.3 in/rev, 3500 PSI 40 Series, auxillary package port block w/o chain tower and T1C & PF05 pumps, D1D04 valves, 10 micron wire mesh filter, neutral interlock switch
25-9515 MXX-1793-400-N1P-X571A 11.3 in/rev, 3500 PSI Fixed displacement, 3500 PSI max pressure
       
60 Series This is an incomplete listing. Hundreds more variations can be supplied. Contact RMH for more inforation.
       
M15-19639 PXX 0705 600 R1/2P 13.47 in/rev, 5000 PSI fixed volume, open loop, standard pump
M15-90114 PXX 0705 600 L1/2P 13.47 in/rev, 5000 PSI fixed volume, open loop, standard pump
M15-90248 PXX 0705 600 R1/2F 13.47 in/rev, 5000 PSI fixed volume, open loop, standard pump
M15-19640 PXX 1223 600 R1/2P 23.42 in/rev, 3500 PSI fixed volume, open loop, standard pump
M15-19653 MXX 3733 600 N1/2P 23.42 in/rev, 3500 PSI fixed volume, open loop, standard motor (PHD)
M15-10516 MXX 3733 600 N1/2F 23.42 in/rev, 3500 PSI fixed volume, open loop, standard motor (PHD)
M15-29344 PXX 1223 604 L1P X501 23.42 in/rev, 3500 PSI variable volume, open loop, standard pump with S-4 (EPR) seals
M15-19714 PXX 1223 604 R1P (PHD) 23.42 in/rev, 3500 PSI variable volume, open loop, standard pump (PHD)
M15-23907 PXX 1223 604 R1P X501 23.42 in/rev, 3500 PSI variable volume, open loop, standard pump with S-4 (EPR) seals
M15-28900 PXX 1223 604 R1P X845 23.42 in/rev, 3500 PSI variable volume, open loop, standard port block, and other unknown modifications
M15-20916 PXX 1223 605 LIP X840 23.42 in/rev, 3500 PSI variable volume, open loop, standard port block, special cylinder control (uses 06 comp body with adapter to fit D2D04 valve for on/off control) with handwheel, 1/8" NPT drain on bottom of port block for shaft seal drain
M25-06945 PXX 1223 605 LIP X840A 23.42 in/rev, 3500 PSI same as X840, with improvements
M15-20925 PXX 1223 609 R1P X844 (GE 185-A-1728-P001) 23.42 in/rev, 3500 PSI variable volume, open loop, standard port block, BHD, special EH servo 415-1398 with DUAL RVDT explosion proof feedback, dual mechanical & lip shaft seals, RJ1/RP1 rotating group, S-5 Seals
M15-22460 PXC 1223 609 R1P X858 23.42 in/rev, 3500 PSI variable volume, 415-1159 + feedback pot control (standard 09), with adjust max stop below center (S-5 seals)
M15-22525 PXX 0705 609 R1P X859 13.47 in/rev, 5000 PSI variable volume, 415-1159 + feedback pot control (standard 09), with adjust max stop below center (S-5 Seals)
M15-20235 PXX 1223 609 R1P X862 23.42 in/rev, 3500 PSI variable volume, 415-1159 + feedback pot control (standard 09), above center only
M15-23350 PXX 0705 609 R1P X862A 13.47 in/rev, 5000 PSI variable volume, 415-1159 + feedback pot control (standard 09), above center only
M15-20933 PXX 1223 604 R1P X845A 23.42 in/rev, 3500 PSI variable volume, open loop, standard port block, special pressure compensator with stem control with spacer (035-46497) to prevent overstroking-BHD-2 deg index
M15-19211 PXX 1223 600 N1P X834 23.42 in/rev, 3500 PSI fixed volume, open loop, standard pump with motor port plate
M15-00314 PPC 1223 607 R/L3P X766A 23.42 in/rev, 3500 PSI variable volume, new rotary servo, T1C-011/PF05-005, 10 micron wire mesh filter w/ 75 PSI bypass
M15-00320 PPC 1223 607 R/L3P X766 23.42 in/rev, 3500 PSI variable volume, new rotary servo, T1C-017/PF05-005, 10 micron wire mesh filter w/ 75 PSI bypass
M15-00505 PPC 1223 607 R/L3P X766B 23.42 in/rev, 3500 PSI variable volume, new rotary servo, T1C-014/PF05-006, 10 micron wire mesh filter w/ 75 PSI bypass
M15-00527 PPC 1223 603 R3P X788 US Navy LPD Anchor 23.42 in/rev, 3500 PSI variable volume, auxillary port block with servo/replenishment package PF05-005 & T1CU, linear servo control
M15-12417 PPC 1223 607 L3P X534 23.42 in/rev, 3500 PSI variable volume, auxillary port block with PF05/TMC package, special rotary servo, tubing installed for external feed of servo & replenishing flow to 2nd pump (X535)
M15-00205 PPC 1223 607 L3P X752 23.42 in/rev, 3500 PSI variable volume, old rotary servo control, replenishing relief blocked, T1C-017 & PF05, 10 micron wire mesh filter
M15-00174 PPC 1223 607 R3P X598 23.42 in/rev, 3500 PSI variable volume, auxillary port block with T1C-017 & PF05-005, 10 micron filter, old rotary servo control with long input shaft, special mounting pad on housing
M15-12498 PPC 1223 608 R/L3P X548 23.42 in/rev, 3500 PSI variable volume, auxillary port block with TMC & PF05-005, rotary servo with HPL, no brake/neutral bypass, with brake switch for solenoid valve
M15-12248 PXX-1223-606-L1P-X541 23.42 in/rev, 3500 PSI open loop, pressure comp w/handwheel, 37.5 micron metal edge filter in compensator pressure feed line (no bypass), main system pressure limit switch, neutral interlock switch (Westinghouse Electric)
M15-12345 PXX-1223-606-R1P-X541
M15-00233 PXX-1223-606-R1P-X541A 23.42 in/rev, 3500 PSI open loop, pressure comp w/handwheel (sequence valve removed-on/off control via pilot signal), neutral interlock, main system pressure limit switch, S-4 seals
M15-00235 PXX-1223-606-L1P-X541A