51 Series DC Diaphragm Pump 12V/24V 3.0-20.0LPM 17-70PSI

An economical workhorse, the 51 series are engineered for flexibility. The 51-Series is our Heavy-Duty water pump. It provides high volume water flow with reduced pump cycling, thanks to the large five-chamber diaphragm. With on-demand switching, 3.0 to 5.0 GPM, and 60 PSI, the 51 series will meet your special requirements with positive predictable performance. The 51-Series pumps are self-priming, and can run dry without damage, performance reliable and low current. Seaflo also offers a variety of easy connect fittings and filters

Specifications|
Parameters

PUMP
Type	5 Chamber positive displacement diaphragm pump, self priming, capable of being run dry
Control Type	Pressure switch
Max Recommended Temperature	60° C（140° F）
Priming Capabilities	6 feet (1.8 m) suction lift
Re-start Pressure	Shut-off Pressure 60 PSI ：48 PSI ±5 PSI (±0.3 bar)
Inlet/Outlet Ports	1/2"-14 MNPT
Weight	6.1 lbs (2.8 kg)

MOTOR
Leads	14 AWG, 13" (33cm) long with 2-Pin connector/Leads
Duty Cycle	Continuous
Max.Amp Draw	17.0 A
Fuse	25.5 A

STANDARD PUMP CONFIGURATIONS

Model	Voltage	Open Flow (GPM/LPM)	Control Type	Max Draw	Shut-off Pressure (PSI/BAR)	Valves	Diaphragm	Ports	Wire Connections
SFDP1-030-060-51	12V	3.0 / 11.5	switch	12.0 A	60 / 4.2	Viton	Santoprene	1/2"-14 MNPT	2-Pin/Leads
SFDP1-040-060-51	12V	4.0 / 15.0	switch	15.0 A	60 / 4.2	Viton	Santoprene	1/2"-14 MNPT	2-Pin/Leads
SFDP1-050-060-51	12V	5.0 / 18.9	switch	17.0 A	60 / 4.2	Viton	Santoprene	1/2"-14 MNPT	2-Pin/Leads

Consult factory for other available models.

PERFORMANCE

3.0GPM

PRESSURE		FLOW		CURRENT
PSI	BAR	GPM	LPM	AMPS
0	0	2.70	10.22	4.3
10	0.69	2.04	7.72	5.3
20	1.38	1.65	6.23	5.9
30	2.07	1.40	5.31	6.5
40	2.76	14.50	54.81	7.2
50	3.45	1.03	3.91	7.6
60	4.14	0	0	0

4.0GPM

PRESSURE		FLOW		CURRENT
PSI	BAR	GPM	LPM	AMPS
0	0.00	3.89	14.71	6.1
10	0.68	3.41	12.92	8.2
20	1.38	3.70	14.01	8.52
30	2.06	3.38	12.81	9.41
40	2.76	3.10	11.72	1.31
50	3.45	2.88	10.91	11.22
60	4.14	0	0	0

5.0GPM

PRESSURE		FLOW		电流
PSI	BAR	GPM	LPM	AMPS
0	0.00	4.44	16.81	4.91
10	0.68	4.15	15.71	7.62
20	1.38	3.70	14.01	8.52
30	2.06	3.38	12.81	9.41
40	2.76	3.10	11.72	10.31
50	3.45	2.88	10.91	11.22
60	4.14	0	0	0

HEAT RISE

安装尺寸图

PRODUCT DETAILS

Key	Description	Quantity
A	Pump Head Assembly	1
B	Valve Assembly	1
C	Diaphragm Assembly	1
D	Motor Assembly	1

Key	Description	Quantity
1	Pressure switch	1
2	Diaphragm of Pressure Switch	1
3	Pump Head	1
4	Diaphragm	1
5	Rubber Feet	1
6	Motor	1

SHIPPING INFORMATION


	Unit Pump Weight	6.09 lbs (2.76 kg)
	Selling Unit Size (L x W x H)	23.62" x 6.26" x 11.50 (28.4 x 15.9 x 14 cm)
	Selling Unit Weight	6.66 lbs (3.02 kg)
	Master Carton Size (L x W x H)	19.69" x 11.81" x 11.20" (50 x 30 x 31 cm)
	Master Carton Qty	6 pcs
	Master Carton Weight	42.51 lbs (19.28 kg)

Standard Accessories
Optional Accessories

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