ASAB DDP18 Replacement Parts #28 - "T" Joint

Part Code: ASAB-SDDP18-28

Introducing the ASAB DDP18 “T” Joint — a heavy-duty tee fitting used in ASAB DDP18 Double Diaphragm Pump plumbing to provide a clean, reliable three-way junction for fluid or air-side routing (depending on your pump configuration). Designed for serviceability and consistent sealing, this T joint is ideal when you’re replacing a damaged branch fitting, rebuilding a pump manifold arrangement, or restoring a setup that’s been leaking or cracked from vibration and over-tightening.

On diaphragm pump setups, a tired or cracked tee can lead to weeping at joints, air ingress, reduced prime stability, or messy bypassing, and it often shows up right when the pump’s under load. Replacing the T joint with the correct DDP18 part helps keep your hose routing tidy, reduces stress on connected lines, and restores a dependable seal at the junction point.

Whether you’re doing a wet-end rebuild, repairing a damaged line junction, or refreshing worn plumbing during preventative maintenance, the ASAB-SDDP18-28 is the right part to keep your DDP18 setup tight and reliable.

Key Benefits

• Direct replacement “T” joint for ASAB DDP18 configurations

• Provides a strong three-way junction for clean line routing

• Helps prevent leaks and weeping at manifold/branch connection points

• Supports stable prime and consistent pump performance by maintaining seal integrity

• Ideal replacement for fittings damaged by vibration, impact, or over-tightening

• Keeps hose/fitting layouts tidy and serviceable

• Workshop-ready spare for fast turnaround repairs

What’s Included

• DDP18 “T” Joint — ASAB-SDDP18-28

Safety Check

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

• Chemical exposure: Wear gloves and eye protection — trapped product can spill when cracking a joint.

• Confirm thread type before install: Match BSP vs NPT (and size) to the mating hoses/fittings — don’t force mismatched threads.

• Use correct sealing method: Apply appropriate thread sealant/tape where required (and keep it out of the flow path).

• Avoid over-tightening: Tee fittings are easy to crack or distort—tighten to seal, not to prove a point.

• Test gradually: Reassemble, then pressure test slowly and check for leaks before returning to full operating conditions.

ASAB – Engineered for Performance, Built to Last.