172B | Bronze Centrifugal Close Coupled Pump

The Bronze Close Coupled Centrifugal Pump is a high-performance, durable pump designed for a variety of fluid handling applications. Its robust construction from corrosion-resistant bronze ensures longevity and reliability, even in the harshest environments. This pump is compact and lightweight, making it easy to install and ideal for use in confined spaces. It is equipped with advanced features such as mechanical seals and TEFC motors, providing efficient and quiet operation. Whether for marine, industrial, or commercial use, this pump delivers consistent performance and is built to withstand demanding conditions.

Advantages:

Durability: Constructed from high-quality bronze, this pump offers exceptional corrosion resistance and longevity, making it a reliable choice for various applications.

Efficiency: The compact design and powerful motor options ensure efficient fluid handling, reducing energy consumption and operational costs.

Versatility: Suitable for a wide range of applications, from marine and industrial to commercial use, and compatible with various fluids.

Safety: Features such as thermal overload protection and vibration dampening ensure safe and stable operation, protecting both the pump and the system.

Reliability: Proven performance in demanding environments, backed by robust construction and advanced design features, ensuring consistent and reliable operation.

Rugged Construction:
Made from high-quality, corrosion-resistant bronze, ensuring durability and long-lasting performance in various environments.

Compact and Lightweight:
Designed for easy installation and handling, perfect for applications where space is limited.

Mechanical Seals:
Equipped with Type 6A/68 mechanical seals, available in Buna and Viton options, suitable for a wide range of fluids including water, oils, and mild solvents.

TEFC Motors:
Features Totally Enclosed Fan Cooled (TEFC) motors with corrosion-resistant passivated 316 stainless steel shafts, ensuring reliable operation and protection against environmental factors.

Versatile Power Options:
Available in multiple power configurations, including 12V, 24V, 32V DC, and 115V & 220V AC, catering to different application needs.

Thermal Overload Protection:
Built-in thermal overload protection to prevent motor damage and ensure safe operation.

Vibration Dampening:
Rubber base grommets reduce vibration, enhancing stability and performance, and extending the lifespan of the pump.

Quiet Operation:
The design of the pump ensures quiet and efficient pumping action, making it suitable for noise-sensitive environments.

Inlet/Outlet Size	3/4” (optional 1/2”)
Max Capacity	12 GPM (2.72 m³/h)
Max Head	17 ft (5 m)
Maximum Temperature	212°F (100°C) (Buna), 400°F (204°C) (Viton)
Motor Options	1/10 HP Permanent Magnet DC (12V, 24V, 32V) 1/8 HP Capacitor Start AC (50/60 Hz, 115V & 220V)
Seal Material	Buna (standard), Viton (optional)
Viscosity Handling	Up to 2000 SSU (Saybolt Seconds Universal)
Construction	Bronze body, stainless steel shafts, mechanical seals
Protection Features	- Thermal overload protection - Vibration dampening (rubber base grommets) - Ignition protection
Additional Features	- Insulated leads - Power cord with plug

Marine Air Conditioning: Efficiently circulates coolant in marine HVAC systems, ensuring optimal performance and comfort.

Engine Block Temperature Control: Maintains optimal engine temperatures, preventing overheating and ensuring efficient engine operation.

Radiator and Heat Exchanger Circulation: Ensures effective heat transfer in various systems, improving overall system efficiency.

Baitwell Circulation: Keeps baitwell water fresh and oxygenated, essential for maintaining live bait in optimal condition.

Industrial Fluid Handling: Suitable for a wide range of industrial applications, including chemical processing and fluid transfer.

Commercial Water Systems: Ideal for use in commercial water systems, providing reliable and consistent water circulation.

Item	Part Name	Quantity	OB172B	OB172B-03	OB172B-07	OB172B-08	OB172BS17
0	0	0	Std. NBR Mech. Seal	Std. NBR Mech. Seal, Vertical Outlet	Std. NBR Mech. Seal, 1/2 NPT Inlet	FKM Type 6A Mech. Seal	FKM Type 6A Mech. Seal
1	Screw	Qty. 4	OB5385	OB5385	OB5385	OB5385	OB5385
2	Cover	Qty. 1	OB7375-1	OB7375-1	OB7275-1	OB7375-1	OB7375-1
3*	O-Ring	Qty. 1	OB9797-033	OB9797-033	OB9797-033	OB9797-033	OB9797-033
4*	Impeller	Qty. 1	OB7678	OB7678	OB7678	OB7678	OB7678
5*	Set Screw	Qty. 1	OB6079	OB6079	OB6079	OB6079	OB6079
6*	Seal Assy	Qty. 1	OB32458	OB32458	OB32458	OB8174	OB2079
7	Body	Qty. 1	OB7456-1	OB7456-1	OB7456-1	OB9786-1	OB7456-1
8	Plug	Qty. 2	OB5395	OB7687	OB6052	OB5395	OB5395
11	Slinger	Qty. 1	OB6651	OB6651	OB6651	OB6651	OB6651
-	Repair Kit	-	OB11071	OB11071	OB11071	OB12004	OB12336
0	0	0	0	0	0	0	0
0	0	0	A81	A82	A87	B26	B27
9	Screw	Qty. 2	OB7424	OB7424	OB7424	--	--
10a	Hex Nut	Qty. 4	--	--	--	OB7686	OB7686
10b	Lockwasher	Qty. 2 or 4	OB5656 (2)	OB5656 (2)	OB5656 (2)	OB5656 (4)	OB5656 (4)
12	Motor	Qty. 1	OB9950	OB9949	OB8103	OB8281	OB8282
13	Grommet	Qty. 4	OB6650	OB6650	OB6650	--	--

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

A81 | 1/10 HP, 3480 RPM, 12 VDC, TEFC

A82 |1/10 HP, 3480 RPM, 24 VDC, TEFC

A87 | 1/10 HP, 3480 RPM, 32 VDC, TEFC

B26 | 1/8 HP, 3460 RPM, 115 VDC, 50/60HZ TEFC , IGNITION PROTECTED

B27 | 1/8 HP, 3460 RPM, 230 VDC, 50/60HZ TEFC , IGNITION PROTECT

172B | Bronze Centrifugal Close Coupled Pump

Features

Technical Specifications

Typical Applications

Exploded View and Parts List

Downloads

Data Sheet - 172BL [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)