Pump Valve

The green APG pump valve is a component of the valve section in a high-pressure pump, used in Kränzle units during servicing and pump system refurbishment. A correctly working valve supports tightness and stable flow, which helps maintain working pressure and smooth washer operation.

MPN / reference: 41.7151
Weight: 0.001 kg
Dimensions / size: 34×24×24

APPLICATION

Used in Kränzle pump service work, including:

• replacing a valve in the pump suction/discharge section (valve-section repair),
• pump refurbishment when pressure drops and system operation becomes unstable,
• maintenance after operating with water containing deposits/particles that reduce seat sealing,
• periodic inspections of heavily used units (industrial and hot-water series).

SYMPTOMS – WHEN IT’S WORTH REPLACING

Typical symptoms of valve wear or leakage:

• drop in working pressure and reduced output,
• jet pulsation and pressure fluctuations during operation,
• difficulty maintaining stable parameters under load,
• unstable pump behavior after releasing the trigger (pressure “floats”),
• visible wear, contamination, or damage after disassembly.

HOW TO CHOOSE THE RIGHT PART

Valve selection must match the pump design and valve seats:

by manufacturer MPN / reference: 41.7151,

by application designation: green APG valve for pumps/systems specified for this variant,

by comparison with the removed valve: verify type, dimensions, and seating method.

Color can help identification, but it should not be the only criterion - the reference number and dimensions are key.

COMPATIBILITY

Valve described for service use in Kränzle units/series: e-therm, Therm C, Therm CA, HD, 2000 series, Quadro, Profi.
For safe selection, confirm compatibility by MPN 41.7151 and the pump documentation/parts list (table/specification). Selecting only by color or series name without reference verification is not recommended.

[faq]

Does a “green” valve mean it will fit any Kränzle pump?|No. Color may indicate a variant, but fit depends on pump design and the part reference. The safest method is selection by MPN 41.7151 and comparison with the removed part.
Will replacing the valve fix pulsation and pressure drop?|Often yes, if a leaking or worn valve is the cause. Similar symptoms can also be caused by the nozzle, water filter, air ingress, or other valve-section components - system diagnostics is recommended.
Can I use an aftermarket valve instead of the Kränzle part?|Only if type, dimensions, and intended use match exactly. The valve must seal properly on its seat; an incorrect match leads to reduced output and unstable pressure. Use the MPN and technical data as the reference.

[/faq]