Schego Ideal Diaphragm Set

Description

Schego Ideal Diaphragm Set — Replacement membranes for the Schego Ideal 150 L/h aquarium air pump

An air pump that is still humming but no longer pushing much air is usually a tired diaphragm, not a dead pump. Schego Ideal Diaphragm Set (SKU: SH771) is the replacement membrane set for the Schego Ideal air pump, made by Schemel & Goetz in Germany. The diaphragm is the flexible disc moved by the pump’s vibrating arm to push air out through the outlet, and it flexes constantly for as long as the pump runs. Schego’s Ideal is listed at 150 L/h at 0.5 m head (170 L/h at the outlet with no head), 5 W, and a long diaphragm life is one of the features Schego gives for the range.

Even a long-life diaphragm wears, and the usual signs are weaker bubbling, a change in sound or an air stone that no longer shows a steady stream. The Ideal is a fixed-output pump with no flow adjustment, so a drop in output points to wear rather than a setting. The supplier lists this set for the Ideal only, so it should not be used on the Prima, Optimal or M2K3 pumps, which have their own sets. Diaphragms are replaced on a stopped, unplugged pump. The set is the diaphragm alone: if the pump head is also dirty or damaged, the air chamber and diaphragm kit (SH772) replaces both together, and a worn filter felt (SH774) is a separate part. The maker does not publish diaphragm dimensions for this set.

Usage & Application

When to Use

• Weak airflow: Air stones or sponge filters that used to bubble strongly now run flat.
• Noisy pump: A split or stiff diaphragm can change how the pump sounds.
• Years of service: A pump running 24 hours a day eventually needs a new membrane.
• Cheaper than a new pump: A set restores a working Ideal 150 without replacing the motor.

Installation & Replacement Guide

• Unplug: Disconnect the pump from the mains and the airline before opening it.
• Open the head: Remove the housing cover and the pump head to reach the diaphragm.
• Swap the membrane: Take off the old diaphragm and fit the new one, noting which way round it sits.
• Reassemble and test: Close up in reverse order and check the pump runs and delivers air.

Product Specifications & Highlights

Key Features

• Ideal-specific: Listed by the supplier for the Schego Ideal air pump only.
• Restores output: A fresh diaphragm brings back the pump’s air delivery.
• German maker: Schemel & Goetz, the company behind the Schego name.
• Diaphragm only: Sold separately from the air chamber and the coil.
• Quiet, low-vibration design: Schego’s stated aim for the pump the set serves.

Product Details

• Brand: Schego (Schemel & Goetz, Germany)
• SKU: SH771
• Barcode (GTIN/EAN): 4005256007717
• Product Type: Spare Parts > Air Pump Diaphragm
• Fits: Schego Ideal air pump (Ideal 150)
• Pump Output: 170 L/h at 0 m; 150 L/h at 0.5 m head
• Pump Power: 5 W
• Companion Parts: Air chamber and diaphragm kit (SH772); coil (SH773); air filter felt (SH774)
• Target Environment: Freshwater and marine aquariums aerated by a Schego Ideal pump