TPD 50-160/2 A-F-A-BAQE-GW1 Pump Heating Circulator 415v 96087039 #2985 USED

GRUNDFOS TPD 50-160/2 A-F-A-BAQE – 415V Twin In-Line Circulator Pump (96087039) #2985 – USED

This listing is for a Grundfos TPD pump from the TP family of dry-rotor, single-stage in-line circulators. The TPD is the twin-head version, providing duty/standby flexibility or parallel operation using identical in-line suction and discharge ports. It is designed for heating, cooling and industrial circulation duties where serviceability and continuity of operation are important.

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

Condition: supplied as a used pump. The unit shows cosmetic wear consistent with previous service use. It has been inspected prior to dispatch and confirmed free-turning and operational.
Guarantee: supplied with our 6-month guarantee.

• Pump type: TPD twin dry-rotor in-line circulator
• 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 TPD 50-160/2 (96087039) – Variant details

Key specifications (summary)

• Model: TPD 50-160/2 A-F-A-BAQE-GW1
• Grundfos product number: 96087039
• Rated motor output (P2): 1.1 kW per head
• Electrical supply: 3 × 220–240 V Δ / 380–415 V Y, 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 requiring duty/standby redundancy

Frequently Asked Questions

What does the model number mean?

• TPD – twin-head TP in-line circulator
• 50 – nominal diameter of inlet and outlet ports (DN50)
• 160 – head series designation
• /2 – 2-pole motor
• A – basic version
• F – DIN flange connections
• A – basic version
• BAQE – shaft seal code
• GW1 – G: 1.1 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, giving quiet, low-friction running in clean heating and cooling water while providing good stability and wear resistance. It is a widely used and reliable seal selection for HVAC circulation duties.

Can one head be used as standby?

Yes – the TPD twin configuration allows duty/standby or parallel operation, but this requires an external control system. Automatic changeover and alternation are not managed by the pump itself; they must be provided by a separate control panel, inverter drive system, or BMS controller configured for twin-pump operation.

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 – each head 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: #2985
We specialise in supplying quality pumps and equipment. This unit is supplied as used, inspected prior to dispatch and supplied with a 6-month guarantee.