Andman^® ACP 100-250 Pump Housing Cover

ACP 100-250 Pump Housing Cover

If you run a paper mill, pulp line, or stock preparation area, you already know that a worn housing cover rarely fails on its own schedule — it tends to show up as vibration, a slow drop in flow, or a seal that just won’t stay tight no matter how many times you tighten it. The Andman^® ACP 100-250 Pump Housing Cover is built to solve exactly that problem. It’s a direct-fit replacement part for the ACP 100-250 centrifugal paper pulp pump, engineered to close out the pump casing assembly and keep the internal hydraulic passage and sealing arrangement working the way it should.

Because the housing cover sits right behind the impeller and forms part of the wet end, its dimensional accuracy matters more than most people expect. A cover that’s even slightly out of tolerance can change the clearance at the impeller face, which shows up later as reduced efficiency or premature wear on the wear plate and shaft seal. Andman^® machines every ACP 100-250 housing cover against the original casing dimensions, so when it arrives on your line, it goes in without rework, re-drilling, or “close enough” fitting.

This part is supplied as a standalone spare, which means you don’t need to replace the entire pump casing to get your ACP 100-250 back into service. For mills running continuous shifts, that difference alone can save a full production day.

EN-GJL-250 Housing Cover Material

The standard ACP 100-250 housing cover from Andman^® is cast in EN-GJL-250 grey cast iron — the same general grade used across most heavy-duty pulp and slurry pump casings, and for good reason. Grey cast iron in this class combines strong compressive strength with good vibration damping, which matters on a component that’s constantly absorbing the pulsation of a rotating impeller and abrasive fibre stock passing through it.

If your process runs higher-consistency stock, recycled fibre with contamination, or a more corrosive furnish, Andman^® can also supply the housing cover in duplex stainless steel or high-chrome alloy. Send your current drawing, the pump’s nameplate data, or even a worn sample, and the technical team will confirm the right material for your duty condition before quoting.

For specific operating conditions, Andman^® can also discuss alternative material requirements according to the pumped medium, temperature, concentration and corrosion conditions.

The correct material and dimensions should be confirmed against the pump model and original component before ordering.

ACP 100-250 Pump Spare Parts

The housing cover is one part of a wider spare parts program Andman^® maintains for the ACP 100-250 and the rest of the ACP range. Most mills that order a housing cover are also due for one or more of the following, since these wear components tend to move together in a pulp pump’s service life:

Ordering the housing cover alongside the front lining and impeller in a single package is common practice for mills doing a planned turnaround, since it means one shipment, one inspection, and one downtime window instead of three.

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Applications of ACP 100-250 Pump Parts

Andman^® ACP pumps and their replacement parts are used in industrial fluid-handling applications including:

• • Pulp and paper production
  • Paper stock preparation
  • Pulp processing
  • Chemical processing
  • Industrial wastewater handling
  • Power and process industries

ACP series pumps are designed for handling different industrial media, with pump configuration and impeller design selected according to the application. Andman^® describes ACP pumps as available with closed, semi-open or open impellers for different media and solids-handling requirements.

Replacement Housing Cover for ACP 100-250 Pumps

Andman^® manufactures the housing cover and the full set of wear parts for ACP series paper pulp pumps, and supplies them either against your existing pump model number or against your own dimensional drawing — including for pumps originally supplied under other brand names, provided the mounting and hydraulic dimensions are confirmed against your unit. If you’re not sure which model you’re running, a photo of the nameplate or the worn part is usually enough for the team to match it correctly.

Beyond the 100-250 frame size, the same housing cover design and manufacturing process applies across the wider ACP lineup:

For each model, the housing cover is cast and machined against the original casing profile, so fit, bolt pattern, and shaft clearance match without on-site modification.

FAQ About the ACP 100-250 Housing Cover