750B | Bronze Self-Priming Centrifugal Close Coupled Pump

The 750B Series Bronze Base Mounted Self-Priming Centrifugal Pumps are designed for efficient and reliable performance in various industrial and marine applications. These pumps feature all-bronze construction and self-priming capabilities up to 20 feet (6.1 m) suction lift, making them ideal for handling a wide range of liquids, including water, mild chemicals, and solvents. With multiple seal options and compatibility with standard NEMA C Jet Pump Motors, the 750B Series ensures smooth operation and minimal maintenance, providing a dependable solution for your pumping needs.

Features:

Durability: Constructed with high-quality bronze and stainless steel for long-lasting performance.

Versatility: Suitable for a wide range of liquids and applications, including marine and industrial uses.

Efficiency: Self-priming capabilities and high flow rates ensure efficient operation.

Ease of Maintenance: Simple assembly and minimal maintenance requirements reduce downtime and operational costs.

Reliability: Proven performance in demanding environments, ensuring consistent and dependable operation.

Flexibility: Multiple seal options and motor compatibility offer customization for specific needs.

All Bronze Construction: Provides exceptional durability and resistance to corrosion.

Self-Priming to 20 Feet (6.1 m) Suction Lift: Ensures efficient operation without the need for manual priming.

Seal Options Available: Suitable for solvents and mild chemicals, offering versatility in various applications.

Pump Heads Field Mounted: Compatible with standard NEMA C Jet Pump Motors with threaded shafts.

Base Mounting: Can be mounted to motors with weld-on feet, providing flexibility in installation.

K-Monel Shaft Option: Available for marine applications, enhancing durability in harsh environments.

|Close Coupled to Electric Motor

Pump No.	Electric Motor
750B	Pump Only - for Single Phase Motor
750B-T19	1 1/2 HP, 3450 RPM, 115/230 V, Single Phase
750BP	Pump Only - for Polyphase Motor
750BP-T57	1 1/2 HP, 3450 RPM, 220/440 V, Polyphase

Maximum Flow Rate	Up to 90 gpm (20.44 m³/h)
Suction Lift	Up to 20 feet (6.1 m)
Discharge Pressure	Up to 3450 RPM
Motor Compatibility	Compatible with NEMA C Jet Pump Motors (single and polyphase options)
Pipe Size	1 1/2” NPT

Item	Part Name	Quantity	OB750B	OB750B-T19	OB750BP	OB750BP-T57
1	Motor	1 Req'd	--	OB5862	--	OB7167
2	Screw	12 Req'd	OB5411	OB5411	OB5411	OB5411
3	Adapter	1 Req'd	OB7926	OB7926	OB7926	OB7926
4*	Seal Assy	1 Req'd	OB32155	OB32155	OB32155	OB32155
5	Shim	1 Req'd	OB602501, 02 or 03	OB602501, 02 or 03	OB602501, 02 or 03	OB602501, 02 or 03
6*	Impeller	1 Req'd	OB7927	OB7927	OB7932	OB7932
7	Diffuser	1 Req'd	OB7928	OB7928	OB7928	OB7928
8	Screw	2 Req'd	OB7796	OB7796	OB7796	OB7796
9*	Gasket Diffuser	1 Req'd	OB7798	OB7798	OB7798	OB7798
10*	O-Ring	1 Req'd	OB2390-167	OB2390-167	OB2390-167	OB2390-167
11	Screw	4 Req'd	OB7637	OB7637	OB7637	OB7637
12	Plug	1 Req'd	OB7934	OB7934	OB7934	OB7934
13	Body	1 Req'd	OB7929	OB7929	OB7929	OB7929
14	Base	1 Req'd	OB6742	OB6742	OB6742	OB6742
15	Plug	1 Req’d	OB7321	OB7321	OB7321	OB7321
16	Set Screw	1 Req'd	--	--	OB9849	OB9849
17	Hex Nut	4 Req'd	--	OB5597	--	OB5597
18	Washer	4 Req'd	--	OB5915	--	OB5915
-	Repair Kit	-	OB11145	OB11145	OB11147	OB11147

Repair Kits include items 4A, 4B, 4C, 6, 9 & 10.

Items 4A(Seal Head), 4B (Wear Face), 4C (Seal Seat) available as assembly p/n OB32155.

750B | Bronze Self-Priming Centrifugal Close Coupled Pump

Key Features and Benefits

Specifications

Exploded View and Parts List

Downloads

Data Sheet - 750B [EN]

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

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

Quick-Pick Selection Charts [EN]

Quick-Pick Selection Charts [EN] (metric)