Delavan T90 - Manual

Turbo 90™ Pump
Instruction
Manual
51255-MN
Features:
The Turbo™ 90 is designed to operate directly from a 1000
RPM PTO shaft without attachments. Peak performance at
slower rotation means longer life of the seals. The Turbo 90
can pump suspended materials without accumulation unlike a
conventional turbine pump. This is possible because of Pressure
Relief Passages from the seal cavities to the inlet port. The sus-
pension circulates, and therefore is cleaned from the inner cavi-
ties. It can be used for large quantity liquid transfer, from truck
to tanks, for instance. It is well suited to high volume sprayer
pumping applications.
The impeller is made of low moisture absorption, corrosion-resist,
engineering grade thermoplastic. It has been designed to increase
pump life and smooth operation because of less rotation weight.
Seals available are either face seals or lip seals. Specify face seals
for severe service (such as abrasives). Face seals feature hard,
wear-resistant phenolic rings pressing against ceramic seats.
Bearings are isolated by drain cavities. 1 1/2” inlet and outlet
ports permit unrestricted high volume flow. Because of the high
capacity of the Turbo 90, sufficient bypass flow is available to main-
tain maximum agitation. Shaft is made of stainless steel and has a
15/16” diameter with 1/4” keyway.
Severe Service model: A Turbo 90 pump is available with a stain-
less steel impeller and long life face seals for severe service. The
stainless steel impeller will not swell or absorb chemicals because
of its steel construction; is tough, durable and virtually indestructible;
and is corrosion resistant.
Caution: Failure to use a suction strainer, as specified, may
void the product warranty.
Note: A high capacity strainer with a 20-mesh screen must
be used on the inlet side.
Note: A 1000 RPM PTO coupler must be used. The capacity
or flow of the Turbo 90 pump used with a 540 RPM
PTO coupler is about zero.
1000 RPM Quick Couplers: Quick couplers provide quick and
simple on-off installation. The body is steel and the collar is Super
Tough Nylon, color-coded International Orange for 35979, 1 3/8”
PTO Coupler, and International Yellow for 35992, 1 3/4” PTO Cou-
pler, according to safety standards.
Collar Coupler: This coupler reduces the chances of vibration be-
cause it clamps a full 360º on a 15/16” pump shaft, and on either 1
3/8” or 1 3/4” tractor PTO, like a collet. This provides better center-
ing of the pump shaft to the tractor PTO. Both ends of the coupler
must be wrench tightened onto the PTO shaft and the pump shaft
prior to operation.
Note: Do not force coupler onto the PTO spline too far.
1/4” to 3/8” of PTO spline should be visible after
coupler is in position.
Torque Bar and Chain: This part is needed to anchor a pump
mounted directly on a PTO to keep it from turning with the PTO
shaft.
Turbo 90 Repair Kits: 28455-1 repair kit for 26556-11 cast iron
pump with face seals includes one gasket, two seal rings, for O-
rings, two ceramic seats, two seat rings, two springs, and two seal
supports. P/N 28455-2 repair kit for 26556-4 cast iron pump with lip
seals includes one gasket and two lip seals.
Warning: When using PTO-driven equipment, leave shields
in place. Do not wear loose-fitting clothing near
rotating PTO shafts.
Turbo™ 90 Flow Rates — Gallons per minute
Pump
GALLONS PER MINUTE (GPM) AT POUNDS PER SQUARE INCH AT THE GAUGE (PSIG)
Speed
(RPM) 0 10 20 30 40 50 60 70 80 90 100
600 45 30 19 8 — — — — — — —
800 60 47 37 27 19 11 3 — — — —
1000 75 65 55 46 37 30 24 18 12 6 —
1200 90 80 73 65 57 49 42 36 31 25 20