170M | Bronze Centrifugal Close Coupled Pump

The 170M Bronze Close-Coupled Centrifugal Pump is a high-performance, corrosion-resistant pump designed for demanding applications, including marine air conditioning, heat exchanger circulation, and engine temperature control. With its compact and lightweight design, it’s an ideal choice for systems where space is limited, yet reliability and efficiency are crucial.

Long-Lasting Performance – Designed for years of reliable operation with minimal maintenance.
Easy Installation – Compact footprint and straightforward integration into existing systems.
No Risk of Overloading – The non-positive displacement design allows full discharge line shutoff without motor strain.
Customizable Seal Options – Choose the best seal material based on fluid compatibility.
Optimized for Harsh Environments – Withstands exposure to saltwater, chemicals, and extreme temperatures.

The 170M Bronze Centrifugal Pump is the perfect solution for marine, HVAC, and industrial fluid transfer applications requiring compact, corrosion-resistant, and high-performance pumping technology.

Corrosion-Resistant Bronze Construction
Ensures durability and longevity, even in harsh environments.
Quiet and Efficient Operation
The open-vane impeller provides smooth, uninterrupted fluid flow.
Reliable Lip Seal Design
Standard Buna-N lip seal with an optional Viton® lip seal for enhanced chemical compatibility.
Multiple Power Options
Available with 12V, 24V, and 32V DC permanent magnet motors.
TEFC Motors with Stainless Steel Shafts
Fully enclosed motors with passivated 316 stainless steel shafts for maximum corrosion resistance.
Vibration Dampening
Rubber base grommets minimize noise and vibrations, improving system stability.

Inlet/Outlet Size	3/4” FNPT (Optional: 1/2” FNPT)
Max Capacity	12 GPM (45 LPM)
Max Head	17 feet (5 m)
Motor Options	1/10 HP, 3480 RPM, 12V / 24V / 32V DC TEFC
Seal Type	Buna-N lip seal (Viton® option available)
Max System Pressure	7 PSI (0.48 bar)
Max Flow	12 GPM (2.72 m³/h)
Max Viscosity	2000 SSU
Self-Priming	No – Requires flooded suction installation

Marine Air Conditioning
Ensures efficient cooling in onboard HVAC systems.
Engine Block Temperature Control
Helps maintain optimal engine performance and prevent overheating.
Radiator and Heat Exchanger Circulation
Supports efficient heat dissipation in industrial and marine cooling systems.
Baitwell Circulation
Keeps bait and fish tanks oxygenated with continuous water movement.

Item	Part Name	Quantity	OB170M	OB170MS5	A81	A82	A87
1	Screw	Qty. 4	OB5385	OB5385
2	Cover	Qty. 1	OB7375-1	OB7375-1
3*	O-Ring	Qty. 1	OB9797-033	OB9797-033
4*	Impeller	Qty. 1	OB7272	OB7272
5*	Set Screw	Qty. 1	OB6079	OB6079
6*	Lip Seal	Qty. 1	OB6647	OB9986
7	Body	Qty. 1	OB7374-1	OB7374-1
8	Plug	Qty. 2	OB6052	OB6052
9a	Screw	Qty. 2			OB7424	OB7424	OB7424
9b	Lock washer	Qty. 4			OB5656	OB5656	OB5656
10	Slinger	Qty. 1			OB6651	OB6651	OB6651
11	Motor	Qty. 1			OB9950	OB9949	OB8103
12	Grommet	Qty. 4			OB6650	OB6650	OB6650
-	Repair Kit	-	OB10911	OB10912

*Items 3, 4, 5, 6 are included in Repair Kits.

170M | Bronze Centrifugal Close Coupled Pump

Features

Technical Specifications

Typical Applications

Exploded View and Parts List

Downloads

Data Sheet - 170M [EN]

I and O - Centrifugal Pumps - Seal Replacement Instructions [EN]

I and O - Bronze or Aluminum Centrifugal Pumps [EN]

Brochure - Marine [EN]

Quick-Pick Selection Charts [EN]

Quick-Pick Selection Charts [EN] (metric)