ASAB DDP18 Replacement Parts #7 - Pump Housing

Part Code: ASAB-SDDP18-7

Introducing the ASAB DDP18 Pump Housing — the main body housing component that forms the core structure of the ASAB DDP18 Double Diaphragm Pump. This housing supports correct alignment of internal components and provides the sealing faces that keep the pump tight under vibration and continuous cycling, helping deliver stable prime and consistent flow in day-to-day service.

A pump housing is the correct replacement when the original has been cracked from impact, warped from over-tightening, scored by contamination, or has damaged threads/sealing faces that won’t clean up. Housing damage often shows up as persistent weeping, repeated gasket/O-ring failures, loss of prime, inconsistent performance, or difficulty keeping fasteners torqued evenly. Replacing the housing restores a solid foundation for the wet-end stack so new seals and valve parts can actually do their job.

Whether you’re completing a full rebuild, fixing a pump that won’t seal up properly, or restoring a unit that’s had a hard life on site, the ASAB-SDDP18-7 is the right part to bring your DDP18 back to proper, job-ready condition.

Key Benefits

• Direct replacement pump housing for ASAB DDP18

• Restores correct alignment and support for internal wet-end components

• Fixes issues caused by cracked, warped, or scored housings

• Helps prevent repeat leaks by providing clean, flat sealing faces

• Ideal for major services, rebuilds, and long-term reliability repairs

• Supports stable priming and consistent performance under cycling load

• Workshop-ready component for dependable, long-life repair

What’s Included

• DDP18 Pump Housing — ASAB-SDDP18-7

Safety Check

• Isolate and depressurise first: Shut off air supply, bleed the airline fully, and confirm the pump and lines are not pressurised before disassembly.

• Chemical exposure: Wear gloves and eye protection — product can remain trapped inside chambers and manifolds.

• Inspect mating parts before reassembly: Replace worn balls/seats, gaskets/O-rings, and fasteners as required — don’t bolt tired valve parts onto a new housing.

• Clean sealing faces and threads: Remove old gasket material and debris; contamination will cause leaks even with new parts.

• Even tightening only: Tighten fasteners in a cross pattern to avoid warping housings and pinching seals.

• Test gradually: Reconnect air, prime at low pressure first, check for leaks, then ramp up to operating conditions.

ASAB – Engineered for Performance, Built to Last.