Description

Auto drain valve centre part (Auto Drain Valve Centre Part) code DPB is the inner part of the reefer container auto drain set, made up of the valve core body, a ball and an O ring. The core can be replaced on its own if the existing housing is still in good condition and compatible.

How the DPB valve core works

The ball inside moves with the water level, opening the drain and then returning to the closed position. Dirt or debris can make the ball stick, so water drains poorly or the valve does not close fully.

Product details: DPB

Product code	DPB
English name	Auto Drain Valve Centre Part
Type	Valve core with ball and O ring
Position	Inside the drain housing in the reefer floor
Used with	Drain pipe AUTODRAINPIPE
Check before ordering	Diameter, height, seat and O ring position

Key points for M&R work

Clean off dirt and blockages so the ball moves freely
Check the O ring and the housing contact surface for tears, chips or dirt
Assemble in the original direction, then test draining and valve closing

When to replace the DPB

Valve core body cracked, chipped or deformed
Ball damaged or still sticking after cleaning
Valve seat damaged so the ball cannot close fully

If only the O ring is damaged, check first whether a matching O ring can be replaced

Parts often checked together

Frequently asked questions

How is DPB different from AUTODRAIN?

DPB is the inner valve core, AUTODRAIN is the drain assembly. Check whether only the core is damaged or the housing too.

Does it fit every auto drain set?

Compare the size, seat and O ring position with the existing housing. Parts that look similar may not work together.

Does water pooling in the container mean the DPB is faulty?

Not always. The inlet, pipe or drain outlet may be blocked. Check the whole drain path first.

Order DPB drain valve cores from Gavan Asia

Give code DPB with quantity and send photos of the old valve core, the housing and key dimensions so our team can compare. Gavan Asia has imported container spare parts for over 20 years, with warehouses in Bang Phli and Laem Chabang. Call 02 316 5484 or sales 081 734 3238 to check stock