Cooling Tower Water Pump Specifications

Below are standard cooling tower water pump specifications used for HVAC condenser water and industrial cooling tower circulation. You can use this as a reference spec or copy it directly for an RFQ / datasheet.

1. Typical Cooling Tower Water Pump Specification

General

* Service: Cooling Tower Circulating Water Pump

* Pump Type: Horizontal End Suction Centrifugal

* Operation: Continuous duty (24/7)

2. Hydraulic Performance - Cooling Tower Water Pump Specifications

Item	Typical Value
Flow rate	50 – 10,000+ GPM (10 – 2,300 m³/h)
Total Dynamic Head (TDH)	15 – 40 m (50 – 130 ft)
Water temperature	5 – 40°C (41 – 104°F)
Design ΔT	5 – 10°C
NPSH available	≥ NPSH required + 1 m

Rule of thumb:

3–5 GPM per refrigeration ton (RT)

3. Mechanical Specifications - Cooling Tower Water Pump Specifications

Component	Standard Material
Casing	Cast Iron / Ductile Iron
Impeller	Bronze / SS304 / SS316
Shaft	Stainless Steel
Wear rings	Bronze / SS
Seal	Mechanical seal (Carbon/Ceramic)
Bearings	Grease or oil lubricated

Optional:

* Double mechanical seal

* Hard-coated impeller

* Anti-corrosion epoxy coating

4. Motor Specifications - Cooling Tower Water Pump Specifications

Item	Typical
Motor type	TEFC induction motor
Power range	5 – 200 HP (3.7 – 150 kW)
Voltage	380V / 400V / 415V (50Hz) or 460V (60Hz)
Efficiency	IE2 / IE3 (recommended)
Protection	IP55
Insulation	Class F (Class B rise)

5. Installation & Piping - Cooling Tower Water Pump Specifications

* Mounting: Baseplate mounted

* Suction: Flooded suction preferred

* Connections: Flanged (ANSI / DIN / JIS)

* Accessories:

 * Suction strainer

 * Non-return valve (NRV)

 * Isolation valves

 * Flexible connector

 * Vibration isolators

6. Applicable Standards - Cooling Tower Water Pump Specifications

* ISO 2858 / ISO 5199

* ANSI B73.1 (equivalent)

* GB / DIN

* Hydrostatic & performance testing

7. Typical Example Specification (Medium System) - Cooling Tower Water Pump Specifications

Cooling Tower Pump

* Flow: 2,000 GPM (450 m³/h)

* Head: 25 m

* Pump type: End suction centrifugal

* Casing: Cast iron

* Impeller: SS304

* Seal: Mechanical seal

* Motor: 40 HP, 460V, 60Hz, IE3

* Duty: Continuous

8. Common Options for Cooling Towers - Cooling Tower Water Pump Specifications

✔ VFD-ready motor

✔ Low-NPSH impeller

✔ Corrosion-resistant materials

✔ Split case design for large flows

✔ Stainless steel shaft sleeve