Single and Dual Pump Packages for Chillers and Fluid Coolers

Tandem Chillers manufactures pump packages for chillers and fluid coolers. These packages are for anywhere you want pumping. There are seven models to choose from.

Drawing

MODEL	MAXIMUM FLOW			PUMP HP	SUCTION
#	GPM AT	GPM AT	GPM AT	3500	DISCHARGE
	80 HF	100 HF	120 HF	RPM	INCHES

DP-1.5 x 1.5	35	20	NA	1 1/2 hp	1 1/2”
DP-2 x 2	45	35	NA	2 hp	2"
DP-3 x 3	80	50	35	3 hp	2"
DP-5 x 5	180	130	85	5 hp	3"
DP-7.5 x 7.5	250	200	100	7 1/2 hp	4"
DP-10 x 10	350	275	175	10 hp	4"
DP-15 x 15	450	40	350	15 hp	6"

MODEL	MAXIMUM FLOW			PUMP HP	SUCTION
#	GPM AT	GPM AT	GPM AT	1750	DISCHARGE
	80 HF	100 HF	120 HF	RPM	INCHES

DP-5 x 5	150	NA	85	5 hp	3"
DP-7.5 x 7.5	200	NA	NA	7 1/2 hp	3"
DP-10 x 10	325	190	NA	10 hp	4"
LDP-7.5 x 7.5	250	150	NA	7 1/2 hp	4"
LDPA-10 x 10	350	NA	NA	10 hp	4"
LDPB-10 x 10	NA	225	150	10 hp	4"

1 - Maximum flow may vary depending on selection of pump model.
2 - Recommended maximum flow through system based on 8’ to 8 ½’ per second velocity:

1 ½” –   40 gpm
2”    – 90 gpm
2 ½” – 125 gpm
3”    – 200 gpm
4”    – 325 gpm
6”     – 750 gpm

3 - We can supply pumps in 380/3/50 hertz for export.

4 - OPTIONS AVAILABLE:

QUOTE

MODEL DP- 30 X 30 DOUBLE PUMP PACKAGE WITH COMPRESSION TANK AND AIR PURGE COMPLETE WITH THE FOLLOWING:

TWO PUMPS: Each pump is an end fed centrifugal stamped stainless steel pump with a stainless steel impeller, each pump will supply 0 gpm at 0 HF (0 psi) and is close coupled to a 0 hp 0 rpm TEFC pump motor.

PUMP FITTINGS: 0" connections with inlet flow switch and 0" pump suction and discharge headers, each pump complete with suction shut-off valve, suction strainer, suction flange or union, discharge flange or union, discharge check valve, discharge flow control valve, pressure gauge with shut-off valve and discharge thermometer with brass well.

One pump can be removed for service while the other is operating.

COMPRESSION TANK SYSTEM: Complete with a mild steel ASME approved 00 gallon compression tank, a 0" air purge, a dual pressure reducing fill valve and pressure relief valve.

HOUSING: Galvanized steel watertight housing with removable panels for service.

CONTROL PANEL: Weather proof control panel complete with pump motor starters with thermal overloads, pump three phase fuses, control transformer with primary and secondary fuses, power on light, pump run and fail lights, local-off-remote switch for remote starting of pump package, one (1) flow switch and two (2) hand-off-auto switches for with an alternating relay for starting of second pump if first pump fails and an automatic 24 hour lead - lag timer for equal run time on pumps. SIZE: Rugged bolted galvanized steel frame, control box, top and side panels.

FRAMESIZE: 0"l x 0"w x 0"h. VOLTAGE: 0, 3 phase, 0 hertz.

FULL LOAD AMPS: 0.0 amps with both pumps operating. MCA: 0 amps with both pumps operating.

RECOMMENDED FUSE SIZE: 0 amps with both pumps operating.

WARRANTY: 1 YEAR parts warranty on the whole unit.

OPTIONS (add): EXPANSION TANK: ASME certified 15 gallon compression tank complete with airtrol fitting, pressure relief, inlet connection with shut-off valve and union, shipped loose for installation in main header an air purge.


	Single and Dual Tank Sets [click to enlarge]

1. Single Pump Tank Set:
Single pump tank set can be used where the process water flow is constant and the flow is the same as the chiller.

Not recommended for cooling towers in a cold climate where the cooling tower can freeze.

Dual Pump tank set is the most common type and has two pumps. One pump is dedicated to the cooling towers or chillers to maintain constant flow required by them to ensure maximum efficiency and safe operation.

Contact us today:
Tel: 1.877.513.8330
Email: sales@tandemchillers.com

Tandem Chillers Inc.
111 Esna Park Drive, Unit 7
Markham, Ontario
L3R 1H2

Tel: 1.877.513.8330
Fax: 905.513.8358
Email: sales@tandemchillers.com