Schego M2k3/ws3 Air Chamber & Diaphragm Kit

Description

Schego M2k3/ws3 Air Chamber & Diaphragm Kit — Chamber and membranes for Schego M2K3 and WS3 air pumps

A diaphragm and the chamber it works in wear together, and replacing one without the other often means doing the job twice. Schego M2k3/ws3 Air Chamber & Diaphragm Kit (SKU: SH743) is the air chamber and diaphragm kit for the Schego M2K3 and WS3 membrane air pumps. It brings the air-handling end of the pump back to a known condition in one visit: new chamber, new diaphragm, and no need to judge which of the two was at fault. A retailer listing for the diaphragms in this range describes the part as an original spare for the M2K3 and WS3 aerators.

The M2K3 is listed at 300 L/h with no head and 260 L/h at 0.5 m, 46 dBA and 2.0 m of maximum head, in a case of about 170 × 75 × 60 mm. The WS3 is listed at 350 L/h and 5 W with at least 3 m of water column and a 1 m cable, for the higher back-pressure of skimmers and decorative columns. Schego notes that these pumps stay reliable in continuous operation and run quietly with low vibration, and a fresh air path helps keep it that way. Compared with the loose diaphragm set (SH742) this kit costs more but covers a cracked, warped or dirty chamber; compared with the pump chamber alone (SH749) it supplies the membranes as well. The supplier does not itemise the kit or publish part dimensions, so the old parts should be compared with the new before fitting.

Usage & Application

When to Use

• Full head overhaul: A pump that has run for years and needs the air section renewed.
• Dirty chamber: Debris or deposits in the chamber that cleaning will not remove.
• Persistent low output: A new diaphragm alone has not restored the airflow.
• Skimmer duty: WS3 units working against 3 m of water column that need full pressure.

Installation & Replacement Guide

• Switch off: Turn off and unplug the pump, then disconnect the air filter.
• Remove the head: Carefully lift off the pump head from the body.
• Exchange the parts: Fit the new chamber and diaphragm, noting the direction of the film.
• Test run: Reassemble, run the pump and check for steady airflow and even sound.

Product Specifications & Highlights

Key Features

• Chamber plus membrane: Two wearing parts in one kit.
• M2K3 and WS3: One kit listed for both models.
• Continuous-duty pumps: Schego describes both as reliable in constant operation.
• Quiet and low vibration: The stated character of the Schego membrane pumps.
• Original spare: Described as an original part by the retailer listing.

Product Details

• Brand: Schego (Schemel & Goetz, Germany)
• SKU: SH743
• Barcode (GTIN/EAN): 4005256007434
• Product Type: Spare Parts > Air Pump Chamber and Diaphragm Kit
• Fits: Schego M2K3 and WS3 air pumps
• M2K3 Case: About 170 × 75 × 60 mm
• WS3 Pressure: At least 3 m water column (Schego)
• Companion Parts: Diaphragm set (SH742); chamber gaskets (SH746); pump chamber (SH749)
• Target Environment: Freshwater and marine aquariums and skimmers aerated by Schego M2K3 or WS3 pumps