Grundfos CH 12-60 A-W-A-AQQV Horizontal Multistage Booster Pump 415V 4P498030 #5014

Grundfos CH 12-60 A-W-A-AQQV Horizontal Multistage Booster Pump 415V 4P498030 #5014

This listing is for a Grundfos CH 12-60 A-W-A-AQQV horizontal multistage centrifugal pump, product number 4P498030. It is a three-phase, 415V class pressure boosting and water transfer pump with Rp 1 1/2 threaded connections, a motor rated at 3.40 kW input power (P1) and an AQQV mechanical shaft seal.

The Grundfos CH range is designed for liquid transfer, pressure boosting, water supply, cooling and compatible industrial circulation duties. This version combines a cast-iron inlet/discharge housing with stainless-steel hydraulic components and a mechanically sealed, close-coupled motor arrangement.

Condition: Supplied in as-new surplus condition, with a disclosed defect: there is a small crack in the terminal-box cover. Please refer to the photographs. The damaged cover should be replaced before electrical installation to restore the intended enclosure protection. An existing unit could provide a donor cover.

Guarantee: Supplied with a 2-year guarantee.

Technical Specifications

• Manufacturer: Grundfos
• Model: CH 12-60 A-W-A-AQQV
• Grundfos product number: 4P498030
• Stock code: #5014
• Pump type: Horizontal multistage end-suction centrifugal pump
• Application: Pressure boosting, water transfer and compatible industrial circulation
• Speed type: Fixed speed
• Self-priming: No – requires priming before operation
• Rated flow: 12 m³/h / 3.33 L/s
• Rated head: 45 metres
• Maximum head: 59 metres
• Connection type: Whitworth threaded Rp / ISO 7/1
• Suction connection: Rp 1 1/2
• Discharge connection: Rp 1 1/2
• Pipework arrangement: Axial suction and radial discharge
• Motor power input P1: 3.40 kW
• Electrical supply: Three-phase, 50Hz, 3 × 220–240V Delta / 380–415V Star
• Nominal voltage: 400V / 415V three-phase
• Rated current: 10.4 / 6.0 A
• Motor type: Grundfos MG90
• Motor speed: Approximately 2900 rpm class
• Enclosure rating: IP54 manufacturer's standard specification, subject to an intact terminal-box enclosure
• Insulation class: F
• Motor protection: Requires suitable external motor overload protection
• Shaft seal: AQQV mechanical shaft seal
• Seal face materials: Silicon carbide / silicon carbide
• Secondary seal material: FKM / Viton
• Pump housing: Cast-iron suction and discharge components
• Internal hydraulic components: Stainless steel
• Liquid temperature range: 0°C to +90°C
• Maximum operating pressure: Nameplate ratings of 10 bar at 40°C and 6 bar at 90°C
• Maximum ambient temperature: +55°C
• Approximate net weight: 27 kg
• Condition note: Small crack to terminal-box cover – see photographs

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

Manufacturer Product Page

The official Grundfos product reference for this pump can be viewed here:

View Grundfos CH 12-60 A-W-A-AQQV – 4P498030

Technical Documentation

Grundfos CH / CHN horizontal multistage pump data booklet, including performance curves, electrical specifications, operating conditions, construction and dimensions:

View Grundfos CH / CHN Technical Data Booklet

Typical Applications

• Commercial water pressure boosting
• Water transfer and circulation
• Industrial water supply systems
• Tank filling and water distribution
• Horticultural and agricultural water supply
• Cooling and air-conditioning support systems
• Compatible industrial liquid transfer
• Replacement of existing Grundfos CH 12-60 installations

Frequently Asked Questions

What is the Grundfos CH 12-60 used for?

The Grundfos CH 12-60 is a horizontal multistage centrifugal pump designed for pressure boosting, water transfer and compatible industrial circulation duties.

Its multistage hydraulic arrangement allows it to produce relatively high pressure while maintaining a useful flow rate. It can be used as a standalone pump or incorporated into a correctly designed pressure boosting system.

What does CH 12-60 mean?

• CH: Grundfos horizontal multistage centrifugal pump range.
• 12: Nominal flow-rate family of 12 m³/h.
• 60: Maximum head class of approximately 60 metres.

The actual maximum head shown on this pump's nameplate is 59 metres. The flow and head depend on the operating point on the pump curve. The pump does not deliver maximum flow and maximum pressure simultaneously.

What does A-W-A-AQQV mean?

• A: Basic pump version.
• W: Whitworth threaded Rp pipe connections.
• A: Basic material configuration.
• AQQV: Mechanical shaft seal code.

What is the AQQV shaft seal?

The AQQV mechanical shaft seal uses an O-ring seal arrangement with silicon carbide / silicon carbide seal faces and FKM / Viton secondary elastomers.

The silicon carbide faces provide good wear resistance, while the FKM elastomers offer chemical compatibility with selected oils, lubricants and industrial liquids where EPDM may not be appropriate.

The AQQV seal should not be regarded as universally suitable for every liquid. Chemical composition, temperature, pressure, viscosity and the other wetted pump materials must be considered.

What is the difference between AQQV and AQQE?

Both seals use silicon carbide / silicon carbide seal faces, but the secondary elastomers differ:

• AQQV: FKM / Viton elastomers.
• AQQE: EPDM elastomers.

Grundfos commonly specifies EPDM versions for water-based duties, while FKM versions are used for selected liquids containing oils or hydrocarbons.

The seals should not be considered automatically interchangeable without checking the pump duty and liquid compatibility.

What liquids is this pump suitable for?

The Grundfos CH range is designed primarily for thin, clean, non-aggressive and non-explosive liquids without solid particles or fibres.

For this AQQV version, suitable applications may include:

• Clean water transfer
• Compatible process water
• Water containing certain oil-based additives
• Selected compatible lubricating and cooling liquids
• Non-flammable industrial liquids compatible with FKM and the pump materials

The Grundfos CH / CHN liquid-selection guidance identifies AQQV as an appropriate seal option for certain oil-containing liquids. However, the pump materials, liquid viscosity, concentration and operating conditions must all be checked before use.

Not intended for: Sewage, dirty water, sludge, abrasive solids, fibres or liquids that attack the pump's materials.

Can this pump be used with glycol?

The fitted AQQV seal uses FKM elastomers, which are not the preferred Grundfos selection for many water-glycol applications.

The Grundfos CH / CHN liquid guidance generally identifies AQQE for common ethylene-glycol and propylene-glycol water mixtures.

If the system contains glycol or antifreeze, the exact mixture, concentration, temperature and shaft seal compatibility should be checked before using this AQQV version.

Can this pump handle oils or fuels?

The AQQV shaft seal can be suitable for selected oil-containing and hydrocarbon-based liquids, subject to full material compatibility.

However, the standard CH pump is not automatically suitable for pumping flammable liquids such as petrol, diesel or other fuels simply because it has FKM seals. Those applications require a separate assessment of the liquid, pump construction, electrical equipment and applicable safety requirements.

This pump should not be used for flammable or explosive liquid duties without explicit confirmation that the complete pump and installation are approved for the application.

What temperature and pressure can this pump handle?

The Grundfos CH range has a standard liquid temperature range of 0°C to +90°C.

The pump nameplate identifies the following maximum operating-pressure ratings:

• At +40°C: Maximum operating pressure of 10 bar.
• At +90°C: Maximum operating pressure of 6 bar.

The permissible operating pressure varies with liquid temperature and must be checked against the manufacturer's pressure/temperature limits for the intended operating conditions.

These are operating-pressure limits for the pump, not the additional pressure increase produced by the pump. The complete system must remain within the applicable pressure rating.

What flow and pressure does this pump produce?

The CH 12-60 belongs to the 12 m³/h nominal flow family and has a maximum head of 59 metres.

The pump nameplate identifies a rated duty of 12 m³/h at 45 metres head. The exact performance across the operating range should be confirmed using the relevant pump curve.

The available flow decreases as the system resistance increases. Pump selection should therefore be based on the required flow and head together, rather than maximum head alone.

What is the minimum inlet pressure or NPSH requirement?

The minimum inlet pressure depends on the operating flow, water temperature and installation conditions.

Grundfos recommends using the relevant NPSH curve plus a safety margin of 0.5 metres when assessing the required inlet conditions.

Insufficient inlet pressure can cause cavitation, noise, reduced performance and damage to the pump. Suction pipework should therefore be correctly sized, with unnecessary restrictions avoided.

Is this pump self-priming?

No. The Grundfos CH 12-60 is a non-self-priming horizontal multistage pump.

The pump must be correctly filled and primed before operation. Where it is installed above the liquid level, the suction arrangement must be designed to maintain prime and provide sufficient inlet pressure.

The pump must not be operated dry.

What electrical supply does this pump require?

This pump has a three-phase 50Hz motor rated for:

• 220–240V Delta: 10.4A
• 380–415V Star: 6.0A

For a normal UK 400V / 415V three-phase supply, the motor is connected in the appropriate star configuration in accordance with its nameplate and wiring diagram.

The motor requires suitable external overload protection. Electrical installation and rotation-direction checks should be carried out by a qualified person.

Does the motor have built-in overload protection?

No. The standard three-phase Grundfos CH motor does not incorporate built-in thermal overload protection.

It must be connected through a correctly rated motor starter or suitable protection equipment, with the overload setting matched to the motor nameplate current.

What is the difference between Grundfos CH and CHN?

The standard CH pump uses cast-iron suction and discharge components with stainless-steel hydraulic components.

The CHN version uses stainless-steel construction for the suction and discharge components as well, providing improved material suitability for selected more demanding liquid applications.

This listing is for the standard CH version, not a fully stainless-steel CHN pump.

What is the condition of the terminal-box cover?

There is a small crack in the terminal-box cover. This has been disclosed in the condition description and should be visible in the product photographs.

The manufacturer's standard motor specification includes IP54 enclosure protection, but this rating should not be assumed to remain effective with a cracked cover.

The cover and terminal enclosure should be inspected by a competent electrician, and the damaged cover replaced before the pump is connected to the electrical supply.

Can this replace another CH 12-60 pump?

It may be suitable as a replacement for an existing Grundfos CH 12-60 installation, but the exact product number, hydraulic performance, shaft seal, electrical supply and installation dimensions should be compared.

This is the 4P498030 AQQV version. Other CH 12-60 variants may use different shaft seal materials or electrical configurations.

What should I check before ordering?

• Existing pump model and product number
• Required flow and head duty point
• Electrical supply: 400V / 415V three-phase
• Rp 1 1/2 threaded inlet and outlet connections
• Pumped-liquid compatibility with cast iron, stainless steel and the AQQV seal
• Operating temperature and system pressure
• Available inlet pressure and NPSH requirements
• Condition and suitability of the terminal-box cover
• Installation dimensions and available space

About Our Stock

Stock code: #5014

We specialise in supplying new and unused surplus commercial pumps, booster pumps and obsolete Grundfos equipment.

This pump is supplied in as-new surplus condition, with a small crack to the terminal-box cover as described above.

Supplied with a 2-year guarantee. Please check the electrical requirements, installation dimensions and hydraulic duty before purchasing.