Re: CAT pump on a Dessalator Duo 60 on an SM
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ianjenkins1946 <ianjudyjenkins@hotmail.com>
Thanks, David,
I think it all now makes sense. My CAT pump hasn't been touched since it was installed and has worked very well, so I will have it repaired with the same configuration the service agents found when they opened it up.
Ian + Judy, Pen Azen, SM 302 , Kilada, Greece
From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> on behalf of David Vogel <david.vogel@...>
Sent: 16 November 2022 20:37 To: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> Subject: Re: [AmelYachtOwners] CAT pump on a Dessalator Duo 60 on an SM Re CAT Pumps for D60, and I am not sure which model we have on SM#396, (I assume either 237 or 277), but this is the tech info I have on-file on this matter, FWIW.
+++ On some units, the centre plunger is removed and the cylinder blocked off. This is done in order to reduce the flow for water-making systems producing less than 160lph. Check whether the model number is 237 or 277 - these models use the same seals and o-rings kits, with the Model 237 being a short-stroke 1725 RPM model, with same pressure output but lesser maximum flow rate than the 277.
237 Technical Specifications Stroke: 7.3 mm / 0.287" Max Flow 8.7lpm / 2.3gpm Pressure Range: 6.9–103bar / 100–1500psi Inlet Port Size: 1/2" NPT(F) Discharge Port Size: 3/8" NPT(F) Pump RPM: 1725 Drive Type(s): Belt, Clutch, Flexible Coupling and Bellhousing Material: Nickel Aluminum Bronze
277 Technical Specifications Stroke: 12.7 mm / 0.500" Max Flow: 13.2lpm / 3.5gpm Pressure Range: 6.9–103bar / 100–1500psi Inlet Port Size: 1/2” NPT(F) Discharge Port Size: 3/8” NPT(F) Pump RPM: 1420 Drive Type(s): Belt, Clutch, Flexible Coupling and Bellhousing Material: Nickel Aluminum Bronze
+++ David SM#396, Perigee Bay if Islands, NZ |
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