Grundfos TP 50-430/2 A-F-A BAQE circulator Pump 96087180 415V 5.5kW #4034

GRUNDFOS TP 50-430/2 A-F-A-BAQE – 5.5 kW 415V In-Line Circulator Pump (96087180) #4034

This listing is for a Grundfos TP pump from the TP family of dry-rotor, single-stage in-line circulator pumps. It is a single-head, fixed-speed unit with identical in-line suction and discharge ports, designed for heating, cooling and industrial circulation duties where robust, serviceable pump construction is required.

The pump uses the top-pull-out design, meaning the power head (motor, pump head and impeller) can be removed for maintenance while the pump housing remains in the pipework.

Condition: this unit shows cosmetic marks consistent with storage and handling, including some heavier surface dings and dents to the exterior casing. These are purely cosmetic and have been assessed as not affecting the mechanical integrity or operation of the pump. The pump has been inspected prior to dispatch.
Guarantee: supplied with our 2-year guarantee.

• Pump type: TP family – dry-rotor, single-stage in-line circulator (single-head)
• Control: fixed-speed operation
• Connection: DN50 DIN flanges (PN16)
• Port-to-port length: 340 mm
• Service design: Top-pull-out – power head removable without disturbing pipework
• Shaft seal: BAQE mechanical seal

Need help confirming suitability?
Call us on 01803 220416 for technical advice.

Manufacturer product page

Full technical specifications, curves and documentation can be viewed on the official Grundfos product page:
View Grundfos TP 50-430/2 (96087180) – Variant details

Key specifications (summary)

• Model: TP 50-430/2 A-F-A-BAQE
• Grundfos product number: 96087180
• Rated motor output (P2): 5.5 kW
• Electrical supply: 3 × 380–415 V Δ, 50 Hz (listed as 415 V)
• Connection: DN50, PN16 DIN flanges
• Port-to-port length: 340 mm
• Shaft seal: BAQE

Typical applications

• Heating systems and boiler circuits
• District heating and district cooling
• Air-conditioning and chilled water systems
• Industrial circulation loops
• Building services and HVAC installations

Frequently Asked Questions

What does the model number mean?

• TP – TP pump range (dry-rotor in-line circulator)
• 50 – nominal diameter of inlet and outlet ports (DN50)
• 430 – head series designation
• /2 – 2-pole motor
• A – basic version
• F – DIN flange connections
• A – basic version
• BAQE – shaft seal code
• LW1 – L: 5.5 kW power rating, W: not for sale in North America, 1: 2-pole, 50 Hz asynchronous motor

What does the BAQE shaft seal code mean?

• B – rubber bellows seal construction
• A – carbon graphite seal face (impregnated)
• Q – silicon carbide counterface
• E – EPDM elastomers

Seal operating temperature (BAQE): suitable from 0 °C up to 120 °C in water duties (EPDM-limited).

Why choose the BAQE seal?

BAQE uses a carbon against silicon-carbide face pairing. This soft–hard combination gives quiet, low-friction running in clean heating and cooling water, while the silicon-carbide counterface provides excellent stability and wear resistance. It is a proven, widely-used seal selection for HVAC circulation duties where smooth operation and reliability are priorities.

What liquids can this pump be used with?

This pump is typically suitable for clean circulation liquids compatible with EPDM, such as:

• Heating system water meeting accepted water quality standards
• Cooling and chilled water circuits
• District heating water
• Condensate
• Softened water
• Clean industrial circulation liquids compatible with EPDM

Not suitable for:

• Liquids containing solid particles or fibres
• Flammable liquids
• Mineral oils or synthetic oils
• Strong chemicals or solvents that attack EPDM
• Sea water or aggressive saline solutions

Is this suitable to replace other DN50 circulators?

This model uses DN50 PN16 DIN flanges with a port-to-port length of 340 mm. Where dimensions match, it can replace other DN50 in-line circulators from manufacturers such as Wilo, Lowara and KSB, subject to hydraulic duty and system requirements.

Can the motor be removed without draining the system?

Yes – the pump uses a top-pull-out design, so the power head can be removed while the pump housing remains installed in the pipework.

About Our Stock

Stock code: #4034
We specialise in supplying quality pumps and equipment. This unit is inspected prior to dispatch and supplied with a 2-year guarantee.