7 best boat water pressure pumps

Product description

NEW 12V Self-Priming Water Pressure Pump 1.2 Gallons/Min (4.3 LPM) 35 PSI Product Details: This product is 100% brand new and comes in original color packing Powerful automatic pressure pump 1.2 Gallons Per Minute (4.3 LPM) capacity flow, and 35 PSI pressure Extremely efficient, very low current draw and offer high capacity output Self priming Smooth, silent operation Can run dry without damage Thermal overload and ignition protection Easy connecting system Low power draw Soft rubber mounts Professional grade pump - Ideal for marine, caravans/RV, and agriculture applications Built-in pressure switch, to automatically turn on and off as you turn your tap or nozzle on and off Beware of inferior non-genuine products on the market that claim to be just as good Specifications Voltage: 12V DC Flow capacity: 1.2 Gallons per minute (4.2 Litres per minute) Water pressure: 35 PSI Hose Outlets: Fixed 10mm (3/8") diam. hose tails Twin core wire Current Draw: 1.7 Amp (max. 2.7 Amp) Dimensions: Length 170mm x Width 100mm x Height 67mm Approvals: CE Applications For marine, RV, agriculture and recreational applications Suits all size boats, caravans, mobile homes, etc. For sinks, taps, showers, or toilets Other applications where you have to transfer water

• The 21-Series Pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration and dispensing
• The 21-series of diaphragm pumps are self-priming and can be run dry without harm. It provides up to 1.2 gallons per minute
• Built-in 35 PSI pressure switch for automatic stop/start
• Self-priming allows it to be mounted above tank; able to run dry
• 1.2 gallons per minute (4.2 liters per minute) Built-in thermal protector; 3/8-inch hose barb ports

User questions & answers

Question:	Is a gravity feed on the inlet side sufficient, I wish to use this for a 20 gallon reservoir for watering plants
Answer:	The plate on the hammer says 120 volts ac, 60hz..
Question:	Im looking to make a water misting system off the side of my rv. Would this pump be good to run for several hours continuously
Answer:	Yes, this model comes with a storage case and the case has extra room for additional bits. I hope this helps you. I used mine for breaking concrete slabs and footings and saved me a lot of sore mussels by not swinging a sledge hammer.
Question:	can the cut off pressure be regulated/adjusted to about 15psi
Answer:	Plate says 60hz.
Question:	Can someone please measure the length of the unit and the width (just the distance from one barb to the other
Answer:	we currently are not doing any international sales. The cost for shipping is way too high. The shipping for this would cost almost 3 times the value of the product.

Product description

SEAFLO 42-Series Water Pressure Diaphragm Pump w/ Internal Bypass - 12V, 3.0 GPM, 55 PSI



Meet our newest addition to our diaphragm pumps: the 42 series. UL 778 & CSA 22.2 Certified. It retains the raw power and pressure of its predecessors, but also can adapt to situations where huge flow is not needed. Compact but capable, it is a great fit for tight spaces. It may also be configured with different inlet types, each with their own unique fittings to be sure that it fits any application you can require. It also features an internal bypass to reduce pump cycling. No accumulator tank needed! Our 42-Series will perform optimally under both high flow and low flow. It also features self-priming and priming up to 6 vertical feet while operating quietly during any application. This pump is capable of running dry and even contains a built-in check valve. Lastly, as will all SEAFLO products, it comes with a 4-Year Limited Warranty!

**PLEASE NOTE: On delivery, this pump may rarely have small amounts of residual water left in it. This is due to the rigorous testing the pump goes through for quality assurance and to comply with UL and CSA standards. This is not an indication of a used pump**

Specs: 

-Max Flow: 3.0 GPM

-Electrical: 12V DC

-Inlet: 1/2" -14 MNPT / Outlet: 1/2" -14 MNPT

-Weight: 4.0 lbs (2.5 kg)

-Pressure: 55 PSI

-Max Amperage: 7.5

-4 Year Warranty

Package Includes:

- 1 x SFDP1-030-055-42 Model Water Pressure Diaphragm Pump

- 1 x Warranty Information

- 1 x Installation Instructions

- 2 x 1/2" Barbed Hose Adaptors

- 1 x 50 Mesh Strainer/Filter

• UL 778 & CSA 22.2 Certified
• 12 Volt, 3.0 GPM, 55 PSI Positive Displacement Pump
• Variable Flow With Bypass Technology For Reduced Cycling!
• Self-Priming And Capable Of Run Dry Operation
• 4 Year Warranty comes standard on all SEAFLO products

User questions & answers

Question:	What is the power usage for this motor? Amp hours would be best, but pretty much any measure would be helpful
Answer:	This is a 12V DC water pressure pump. The max amperage draw is 7.5 Amps. All technical specifications on the pump can be found here: http://seaflo.com/en-us/product/detail/609.html
Question:	Lousy house pressure, if I connect outlet of garden faucet to inlet of this pump will I get better outlet pressure to drive an impact type sprinkler
Answer:	Not sure if it will fulfill your needs. I replaced a leaking pump in our camper and this pump did the trick. Lots of good pressure on demand. A garden hose may be too big of a diameter for good pressure. I'm sure you could find some sort of reducer to connect it and try it. For the price, it might be worth the risk.
Question:	What is the wattage need when using a power supply
Answer:	my pump is connected to our solar panel system that gives a very accurate measure of amp consumption. it draws 6 amps when active at 13.2 volts P=VI 13.2 * 6 = 78.6 watts
Question:	Automatic shut off
Answer:	Yes it has a pressure switch that shuts it off when you shut the flow of water off

Product description

Dimensions 7.84" x 5" x 4.62" - Can Run Dry - Self Priming - Built in Check Valve

• 4 Year Warranty from Authorized Seaflo USA Dealer!!!
• 3.3 Gallons Per Minute flow, 45 psi Self Priming
• Includes standard three prong outlet plug
• 1/2" Threaded NPT Inlet/Outlet - includes 1/2" Barbed Hose Adapters - Mesh Inlet Strainer
• 110V AC Current Draw .75 amps (1.2 Max Amps)

User questions & answers

Question:	can i use this as a in-line pump for a fountain ? i have been trying to find a in-line pump non-submersible pump to pump water with 4 foot lift
Answer:	no, you need to search fountain pump. This one is for something like a camper sink and faucet.
Question:	I need to pump water from a 500 gallon tank into and ecotemp water heater and then into 2 sinks, 1 shower will this work
Answer:	What is the pressure required by your tankless water heater? It will probably work perfectly.
Question:	Can this pump pressurize (on demand) water from a water tote for a small cabin (sink & shower
Answer:	Yes, that is what we use our pump for.
Question:	My pump says 12 volt dc so i hooked to 12 volt, it surges and very little water is pumped, this is for sink only, where is my problem
Answer:	Make sure your hose is non-collapsible, especially on the intake. Mine did that because the cheap hose would kink and suck closed.

• UL 778 & CSA 22.2 Certified
• 12 Volt, 3.0GPM, 45PSI Fully Automatic Diaphragm Pump
• Serves 3 or more 1/2” (13 mm) outlets
• Easy to install and service!
• Threaded connections with multiple fittings

User questions & answers

Question:	Does the pump get hot with use? Can it be placed inside a sound insulated box without overheating
Answer:	I use this to inflate my sons big inflatable pool so I would think it would do balloons as well!
Question:	is this ignition protected
Answer:	Yes! I use it for my kickboxing bag which is huge!
Question:	is the power from the boat battery
Answer:	Dear Customer: Firstly. thanks for your question. This electric air pump is not suitable for bike tires, balloons, etc. Mainly used for air matress, inflatable sofas, swimming pool toys, kayak, and other inflatable products. If you have any question, you can contact us in any time. Hope to help you. Semai Brand.
Question:	side pictures show filter and fittings, do they come with it
Answer:	Mine was a wall outlet. No car charger came with it.
Question:	Pump worked great pulled out hose from drain to clean and now pump runs but no water. Priming issue
Answer:	Thank you for your inquiry. The flow rate is 0.5PSI（3500PA).
Question:	will this pump hot water for a shower? approx. 100 degrees
Answer:	The airflow is very strong and can fill up a large mattress size float in a matter of minutes. We have been using ours for about six months and have really been amazed how well it works. It is small but mighty.
Question:	How do I make a warranty claim? I’ve had the pump for less than a year and it is now leaking water out of it
Answer:	Thank you for your inquiry. Yes it works for your lazyboy slumberair mattress.
Question:	Will it pump saltwater
Answer:	It's about 6 feet
Question:	Will this pump work with hot water
Answer:	No it does not make any noise at all when moving around.
Question:	Will this pump hold up bleaching water
Answer:	I order these for an elderly relative in another State & have not seen them in person but the caregivers love them , they are washable & they say they are cotton.
Question:	Will this hold up in salt water as a washdown pump, or does seaflow make a different product for saltwater use
Answer:	Should help you out to protect mattress or topper. Tuck in sides keep bed pad in place.
Question:	Why does amazon list this as 55 series but everything on the box is showing 51 series? what it it
Answer:	I do not know what fabric this is made of, but I highly recommend the product. The tuckable sides really help. If liquid does come to the pad, it rarely goes through the pad. It will need to be washed, but it saves washing the sheets and mattress pad too. I highly recommend this product.

Product features

Seaflo 33 Series Boat and RV Pump

Ease Of Use

This pump features industry standard fittings, wiring, and mounting base to directly replace similar competing pumps.

Beats The Competition

The three-chamber high volume design is driven by a heavy-duty motor which produces flow rates of 3.3 GPM and 45 PSI. It is capable of self-priming up to 6 vertical feet and can run dry, making it a clear cost to performance leader.

Diaphragm Pumps

Ranging from 1 to 5 GPM capacity, SEAFLO automatic demand water pumps have a built-in pressure switch which automatically starts and stops when the faucet is opened and closed. They're easy to install, service and winterize.

Bilge Pumps

The SEAFLO Submersible non-automatic bilge pump line handles bilge water evacuation and is controlled by a panel or float switch. They all include Anti-Airlock protection and moisture tight seals with marine-grade blocked wiring. The removable strainer base fits industry standard mounting conventions, so you’ll have no problem swapping to SEAFLO.

Washdown Pumps

SEAFLO’s washdown kits are the best choice for cleaning boats, fish boxes, anchor wells, dinghies, and other similar applications. Ranging from 3 to 5 GPM capacity and with an on-demand switch, the pump automatically turns on when you squeeze the spray gun handle.

Seaflo Dry Bilge System

The SEAFLO Dry Bilge System is the most economical and reliable way to keep your bilge clean and completely dry. The SEAFLO Dry Bilge System removes all still water from the lowest part of your bilge, or other water-containing compartments. The system is self-priming up to 25 feet, so it can be mounted remotely from the suction foot. The system is activated either by the easy-to-use programmable timer, or manually by a toggle switch.

• The patented design delivers smooth，consistent flow at all ranges of operation, while drawing low current.
• The balanced motor design incorporates precision ball bearings for long life, motor is equipped with an integral thermal breaker.
• All marine duty pumps have sealed switches and are finished with a Electro Coating to inhibit corrosion.
• Marine duty fresh water pumps are enclosed to prevent incidental moisture from entering and when installed correctly, Marine Duty Fresh Water Pumps provide years of quiet operation.
• Amarine Made pump in combination with a low backpressure water system can exceed all expectations.

User questions & answers

Question:	Is this pump loud and have alot of vibration like the surflow pumps i bought a sureflow pump for my house boat and it sucks looking for one thats quie
Answer:	This electric pump for pool floats comes with 3 different size nozzles. Fit for a variety of inflatables. It doesn't matter if it's big, tall, wide, or small-if it has a valve it can be inflated.
Question:	Does it have its own pressure switch
Answer:	Yes, you can deflate the air bags with the electric inflator air pump. It can not only inflate items but also deflate products by sucking the air out!
Question:	Is this rated for continuous duty? How long can it run before overheating
Answer:	If the raft or kayak is big, it may take 5-10 minutes.
Question:	Can the pressure switch be replaced and if so where can I find it
Answer:	This electric pool float pump cannot inflate high-pressure products such as balloons, basketballs, tires, etc.

Product features

Specifications For

1) Motor Voltage: 12/24V DC

2) Max Flow rate: 20lpm (5.5gpm), can be adjusted from 3.0-20lpm (0.8-5.5gpm) as required.

3) Max Pressure: 60psi (4.2bar), can be adjusted from 10psi (0.6bar) to 60psi (4.2bar) as required.

4) SFS51-01inlet strainer for your choice. Inlet/Outlet fitting: 13mm pyramid hose barb, 1/2 NPT thread fitting for your choice.

5) Protection: pressure switch protection: pressure-off protection or circumfluence switch protection. For the powered control you can choose pump without pressure protection.

6) Duty Cycle: Intermittent (under different pressure the continuous working time will also be different)

Applicatins For

* Yacht / RV/Caravan pressurized water system

* Sprayer fixtures (Vehicle-mounted sprayers, electric sprayer)

* Clean machine, Humidifier, Water purification, Medical apparatus

* Food beverage filling & liquid transfer

* Any other pressurization system.

• ⚓[MAIN PARAMETER] ~ Voltage: 12V DC ; Flow Capacity: 5.5 Gallons Per Minute ; Water Pressure: 70 PSI (4.8 bar) ; Nozzle Open Pressure: 55 PSI (3.8 bar) ; Hose Outlets: Suits 1/2" Diam Hose ; Twin Core Wire ; Current Draw: 17.2 Amp (Max 20 Amp) ; Duty Cycle: 30 mins ; Accessories: 1 x Trigger Nozzle with Quick Connect, 1 x Quick Connect Adaptor, 1 x UV-protected 25' Coiled Hose, 2 x NPT Connectors with 1/2" Straight Barb, 1 x Universal Saltwater Filter/Straine.
• ⚓[HIGH-QUALITY MATERIAL] ~ The main body of the 5-chamber positive displacement diaphragm pump is made of ABS engineering plastic, which is one-piece, tightly sealed and durable. A high-powered motor with a waterproof cover and a sealed pressure switch ensure that the pump operates in harsh environments. Rubber mounting feet reduce noise and prevent corrosion.
• ⚓[EASY CONNECTING] ~ Externally threaded port pump heads are available in a variety of sizes and mounting styles for easy connection to any outlet. The threaded connection of the water pipe is made of high quality brass and the filter can be removed for cleaning.
• ⚓[SUPERIOR PERFORMANCE] ~ The self-priming 12V pump is equipped with an automatic pressure switch control that automatically opens and closes when you open and close the nozzle. In addition, the pump has built-in thermal overload protection, and when the motor overheats, the pump will automatically stop running. Once the temperature has dropped to an acceptable range, the pump will automatically restart.
• ⚓[WIDE APPLICATION] ~ The 12v water pump is designed for intermittent use with a duty cycle of 30 minutes and is suitable for fresh or salt water. Ideal for cleaning boats, fish tanks, anchor chains, beacon stations and boats. It can also be used to clean ships, RVs and leisure decks.

User questions & answers

Question:	Will it for livewell
Answer:	Chinese POS do not purchase
Question:	Where can I get another male quick connector
Answer:	Try Amazon, its been our supplier now for several years metal and harden plastic
Question:	What is the warranty
Answer:	not sure its in the material, but I would not buy this product, it has the making of a good unit except the spray nozzele is plastic and when you contact the seller about the warranty, they do not know how to get the mgf. to replace it HOPE that tells you about the warranty
Question:	A battery of less than 17 amp does not operate this pump
Answer:	Yes, amperage is how fast the electricity moves, or draw. You can think of it like a river; the width x depth of the river is the voltage, the current (how fast the water moves) is the amperage, and the volume of water being displaced is the wattage, hence A x V = W. So long as your battery is 12 volts, the equiptment will run. Amps is calculated in hours, or how long the battery will last before being drained. 1 amp draw means in one hour 1 amp hour of the battery has been used. So a 10 amp pump running on a 10 amph hour battery will last 1 hour. So if you used a battery less than 17 amps, divide the size of the battery (amp hour) by the amperage the equiptment uses (17.5 A) to get how long your battery will last before being drained.

Product features

UV-protected 25' Coiled Hose

The diameter of the hose outlet is 1/2 inch.The length is 25 ft and the threaded interface is made of high quality brass.

Trigger Nozzle with Quick Connect

The diaphragm pump will start automatically when the gun is pressed.

Quick Connect Adaptor & NPT Connectors with 1/2" Straight Barb

These connectors are used for the assembly of the device.

Universal Saltwater Filter/Straine

The filter filters impurities in the water and can be removed for cleaning.

HOW TO USE

1.Assess wind conditions and clear work area.

Before you decide to spray,you must determine whether wind conditions are suitable. You must also restrict access to the work area to ensure the safety of bystanders.

2.Operate the pump.

• a.Review safety information
• b.Wear personal protective equipment
• c.Turn on power
• d.Pressure switch operation
• e.Leaving unattended
• f.Discontinue use if clogged or inoperative.

3.Clean pump and decontanminate after use.

When done using the sprayer,it is important to clean the pump and decontaminate yourself.Do not stor the pumpwhen saturated with chemicals,as it is unsafe and could also result in damage to the equipment.

• a.Drain pump system
• b.Used chemical
• c.Flush pump
• d.Decontaminate&launder

ABS Engineering Plastics

• The main body of the 5-chamber positive displacement diaphragm pump is made of ABS engineering plastic, which is one-piece, tightly sealed and durable.
• A high-powered motor with a waterproof cover and a sealed pressure switch ensure that the pump operates in harsh environments.
• Rubber mounting feet reduce noise and prevent corrosion.

Automatic Start

• The self-priming 12V pump is equipped with an automatic pressure switch control that automatically opens and closes when you open and close the nozzle.
• In addition, the pump has built-in thermal overload protection, and when the motor overheats, the pump will automatically stop running. Once the temperature has dropped to an acceptable range, the pump will automatically restart.

Wide Application

• Externally threaded port pump heads are available in a variety of sizes and mounting styles for easy connection to any outlet.
• The 12v water pump is designed for intermittent use with a duty cycle of 30 minutes and is suitable for fresh or salt water.
• Ideal for cleaning boats, fish tanks, anchor chains, beacon stations and boats. It can also be used to clean ships, RVs and leisure decks.

Specification

Voltage: 12V DC

Flow Capacity: 5.5 Gallons Per Minute

Water Pressure: 70 PSI (4.8 bar)

Nozzle Open Pressure: 55 PSI (3.8 bar)

Hose Outlets: Suits 1/2" Diam Hose

Twin Core Wire

Current Draw: 17.2 Amp (Max 20 Amp)

Duty Cycle: 30 mins

• Diaphragm Pump, set of instructions, 1/2" barbed hose adaptors, 50 mesh inlet strainer
• 3.0 Gallons Per Minute capacity flow, and 45 PSI pressure setting
• Self priming, smooth, silent operation and can run dry without damage
• Voltage: 12 VDC Dimensions: 7.84" X 5.00" X 4.62" Amps: 3.0 (6.0 Max. Amps)
• 4-Year Warranty

User questions & answers

Question:	Is this this model sfdp
Answer:	SFPD1-033-45-33
Question:	could this pump, pump water up 6 feet
Answer:	Yes, this pump will both pull and push water up 6 feet.
Question:	Can you hook up to 3/4 pex
Answer:	The output is 1/2" MNPT. You would need a 1/2"FNPT to 3/4" Pex Fitting
Question:	Can you adjust the "shut-off" pressure down from 45 PSI
Answer:	Locate the allen screw on the pressure switch located on the front of the pump, use an allen key to turn it clockwise to increase pressure or counterclockwise to decrease pressure.

Product features

Seaflo 33 Series Boat and RV Pump

Ease Of Use

This pump features industry standard fittings, wiring, and mounting base to directly replace similar competing pumps.

Beats The Competition

The three-chamber high volume design is driven by a heavy-duty motor which produces flow rates of 3.3 GPM and 45 PSI. It is capable of self-priming up to 6 vertical feet and can run dry, making it a clear cost to performance leader.

Diaphragm Pumps

Ranging from 1 to 5 GPM capacity, SEAFLO automatic demand water pumps have a built-in pressure switch which automatically starts and stops when the faucet is opened and closed. They're easy to install, service and winterize.

Bilge Pumps

The SEAFLO Submersible non-automatic bilge pump line handles bilge water evacuation and is controlled by a panel or float switch. They all include Anti-Airlock protection and moisture tight seals with marine-grade blocked wiring. The removable strainer base fits industry standard mounting conventions, so you’ll have no problem swapping to SEAFLO.

Washdown Pumps

SEAFLO’s washdown kits are the best choice for cleaning boats, fish boxes, anchor wells, dinghies, and other similar applications. Ranging from 3 to 5 GPM capacity and with an on-demand switch, the pump automatically turns on when you squeeze the spray gun handle.

Seaflo Dry Bilge System

The SEAFLO Dry Bilge System is the most economical and reliable way to keep your bilge clean and completely dry. The SEAFLO Dry Bilge System removes all still water from the lowest part of your bilge, or other water-containing compartments. The system is self-priming up to 25 feet, so it can be mounted remotely from the suction foot. The system is activated either by the easy-to-use programmable timer, or manually by a toggle switch.